Ian Campbell
2010-Aug-03 11:00 UTC
[Xen-devel] [PATCH 0 of 8] [RFC] libxl: autogenerate type definitions and destructor functions
This series is an RFC (I couldn''t convince "hg email" to mark
mails
other than the first as such).
The series introduces auto-generation of the type definitions used in
the libxl interface followed by auto-generation of a destructor
function for each type. In the future it may be possible to use the
related data structures for other purposes, for example auto-generation
of the functions to marshal between C and language binding data types.
The utility of the destructor functions is related to the direction
taken by libxl wrt allocations made by the library vs. those made by
the caller i.e. attaching stuff to the libxl context vs explicit
freeing by the caller. Given the current ad-hoc nature of the
implementation of the current "policy" (and I use the word a loosely)
across to libxl/xl interface today this patchset is likely to introduce
either double-frees or leaks depending on which approach is currently
used for a given allocation so this series is definitely intended to
follow (or be incorporated into) a series which makes a firm decision
about that policy and implements it.
Given that (massive) caveat the complete series does make "xl create
-n" clean of leaks and double frees, at least as far as valgrind is
concerned.
I''m not yet totally happy with some aspects of the auto generation, in
particular the type definitions should be separated from the
scaffolding in libxltypes.py (e.g. into libxl.idl or similar) and some
of the overly C specific constructs which have crept into the data
types (e.g. the use of "*" in type names) need careful
consideration. (I don''t think the C-isms are universally a bad thing
-- the use cases which are envisioned, including those relating to
language bindings, are generally expected to be on the C side of
things). Other areas for further work are in the area of the
{has,generate}_destructor type annotation (currently a mess, as is the
passing around of type annotations generally) and the representation
of pass-by-value-ness vs pass-by-reference-ness.
Regardless of that I think I have progressed to the point where taking
it any further would be a potential waste of time without some
validation of the overall concept/direction.
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Ian Campbell
2010-Aug-03 11:00 UTC
[Xen-devel] [PATCH 1 of 8] libxl: add a specific UUID type
# HG changeset patch
# User Ian Campbell <ian.campbell@citrix.com>
# Date 1280829528 -3600
# Node ID cafba5708f95cf85f55bdca322d2ff6b6769bcba
# Parent b2ed7cc08554cba162f93cb95e84c2130d76b314
libxl: add a specific UUID type.
Slightly less error prone and also more amenable to autogeneration.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
diff -r b2ed7cc08554 -r cafba5708f95 tools/libxl/libxl.c
--- a/tools/libxl/libxl.c Tue Aug 03 10:58:48 2010 +0100
+++ b/tools/libxl/libxl.c Tue Aug 03 10:58:48 2010 +0100
@@ -410,7 +410,7 @@ int libxl_domain_resume(libxl_ctx *ctx,
* Does not modify info so that it may be reused.
*/
int libxl_domain_preserve(libxl_ctx *ctx, uint32_t domid,
- libxl_domain_create_info *info, const char
*name_suffix, uint8_t new_uuid[16])
+ libxl_domain_create_info *info, const char
*name_suffix, libxl_uuid new_uuid)
{
struct xs_permissions roperm[2];
xs_transaction_t t;
diff -r b2ed7cc08554 -r cafba5708f95 tools/libxl/libxl.h
--- a/tools/libxl/libxl.h Tue Aug 03 10:58:48 2010 +0100
+++ b/tools/libxl/libxl.h Tue Aug 03 10:58:48 2010 +0100
@@ -22,8 +22,10 @@
#include <xs.h>
#include <sys/wait.h> /* for pid_t */
+typedef uint8_t libxl_uuid[16];
+
typedef struct {
- uint8_t uuid[16];
+ libxl_uuid uuid;
uint32_t domid;
uint8_t running:1;
uint8_t blocked:1;
@@ -50,7 +52,7 @@ typedef struct {
} libxl_poolinfo;
typedef struct {
- uint8_t uuid[16];
+ libxl_uuid uuid;
uint32_t domid;
} libxl_vminfo;
@@ -93,7 +95,7 @@ typedef struct {
bool oos;
int ssidref;
char *name;
- uint8_t uuid[16];
+ libxl_uuid uuid;
char **xsdata;
char **platformdata;
uint32_t poolid;
@@ -173,7 +175,7 @@ typedef enum {
typedef struct {
int domid;
- uint8_t uuid[16]; /* this is use only with stubdom, and must be different
from the domain uuid */
+ libxl_uuid uuid; /* this is use only with stubdom, and must be different
from the domain uuid */
char *dom_name;
char *device_model;
char *saved_state;
@@ -338,7 +340,7 @@ int libxl_domain_resume(libxl_ctx *ctx,
int libxl_domain_resume(libxl_ctx *ctx, uint32_t domid);
int libxl_domain_shutdown(libxl_ctx *ctx, uint32_t domid, int req);
int libxl_domain_destroy(libxl_ctx *ctx, uint32_t domid, int force);
-int libxl_domain_preserve(libxl_ctx *ctx, uint32_t domid,
libxl_domain_create_info *info, const char *name_suffix, uint8_t new_uuid[16]);
+int libxl_domain_preserve(libxl_ctx *ctx, uint32_t domid,
libxl_domain_create_info *info, const char *name_suffix, libxl_uuid new_uuid);
int libxl_file_reference_map(libxl_ctx *ctx, libxl_file_reference *f);
int libxl_file_reference_unmap(libxl_ctx *ctx, libxl_file_reference *f);
@@ -360,7 +362,7 @@ int libxl_run_bootloader(libxl_ctx *ctx,
libxl_device_disk *disk,
uint32_t domid);
-char *libxl_uuid2string(libxl_ctx *ctx, const uint8_t uuid[16]);
+char *libxl_uuid2string(libxl_ctx *ctx, const libxl_uuid uuid);
/* 0 means ERROR_ENOMEM, which we have logged */
/* events handling */
diff -r b2ed7cc08554 -r cafba5708f95 tools/libxl/libxl_dom.c
--- a/tools/libxl/libxl_dom.c Tue Aug 03 10:58:48 2010 +0100
+++ b/tools/libxl/libxl_dom.c Tue Aug 03 10:58:48 2010 +0100
@@ -427,7 +427,7 @@ int save_device_model(libxl_ctx *ctx, ui
return 0;
}
-char *libxl_uuid2string(libxl_ctx *ctx, const uint8_t uuid[16]) {
+char *libxl_uuid2string(libxl_ctx *ctx, const libxl_uuid uuid) {
char *s = string_of_uuid(ctx, uuid);
if (!s) XL_LOG(ctx, XL_LOG_ERROR, "cannot allocate for uuid");
return s;
diff -r b2ed7cc08554 -r cafba5708f95 tools/libxl/xl_cmdimpl.c
--- a/tools/libxl/xl_cmdimpl.c Tue Aug 03 10:58:48 2010 +0100
+++ b/tools/libxl/xl_cmdimpl.c Tue Aug 03 10:58:48 2010 +0100
@@ -265,11 +265,11 @@ static void init_build_info(libxl_domain
}
}
-static void random_uuid(uint8_t *uuid)
+static void random_uuid(libxl_uuid *uuid)
{
int i;
for (i = 0; i < 16; i++)
- uuid[i] = rand();
+ (*uuid)[i] = rand();
}
static void init_dm_info(libxl_device_model_info *dm_info,
@@ -277,7 +277,7 @@ static void init_dm_info(libxl_device_mo
{
memset(dm_info, ''\0'', sizeof(*dm_info));
- random_uuid(&dm_info->uuid[0]);
+ random_uuid(&dm_info->uuid);
dm_info->dom_name = c_info->name;
dm_info->device_model = "qemu-dm";
@@ -586,7 +586,7 @@ static void parse_config_data(const char
c_info->name = strdup(buf);
else
c_info->name = "test";
- random_uuid(&c_info->uuid[0]);
+ random_uuid(&c_info->uuid);
if (!xlu_cfg_get_long(config, "oos", &l))
c_info->oos = l;
@@ -1181,7 +1181,7 @@ static int preserve_domain(libxl_ctx *ct
struct tm tm;
char stime[24];
- uint8_t new_uuid[16];
+ libxl_uuid new_uuid;
int rc;
@@ -1202,7 +1202,7 @@ static int preserve_domain(libxl_ctx *ct
return 0;
}
- random_uuid(&new_uuid[0]);
+ random_uuid(&new_uuid);
LOG("Preserving domain %d %s with suffix%s", domid,
d_config->c_info.name, stime);
rc = libxl_domain_preserve(ctx, domid, &d_config->c_info, stime,
new_uuid);
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Ian Campbell
2010-Aug-03 11:00 UTC
[Xen-devel] [PATCH 2 of 8] libxl: add a specific MAC address type
# HG changeset patch
# User Ian Campbell <ian.campbell@citrix.com>
# Date 1280829528 -3600
# Node ID 81cc53cbda33b5cd4c498c41b3eafd73f16b15e1
# Parent cafba5708f95cf85f55bdca322d2ff6b6769bcba
libxl: add a specific MAC address type.
Slightly less error prone and also more amenable to autogeneration.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
diff -r cafba5708f95 -r 81cc53cbda33 tools/libxl/libxl.h
--- a/tools/libxl/libxl.h Tue Aug 03 10:58:48 2010 +0100
+++ b/tools/libxl/libxl.h Tue Aug 03 10:58:48 2010 +0100
@@ -23,6 +23,8 @@
#include <sys/wait.h> /* for pid_t */
typedef uint8_t libxl_uuid[16];
+
+typedef uint8_t libxl_mac[6];
typedef struct {
libxl_uuid uuid;
@@ -270,7 +272,7 @@ typedef struct {
int devid;
int mtu;
char *model;
- uint8_t mac[6];
+ libxl_mac mac;
struct in_addr ip;
char *bridge;
char *ifname;
@@ -280,8 +282,8 @@ typedef struct {
typedef struct {
int devid;
- uint8_t front_mac[6];
- uint8_t back_mac[6];
+ libxl_mac front_mac;
+ libxl_mac back_mac;
uint32_t backend_domid;
uint32_t domid;
uint32_t trusted:1;
@@ -498,7 +500,7 @@ typedef struct {
int devid;
int state;
char *script;
- uint8_t mac[6];
+ libxl_mac mac;
int evtch;
int rref_tx;
int rref_rx;
@@ -654,9 +656,9 @@ typedef struct {
uint32_t frontend_id;
int devid;
int state;
- uint8_t mac[6];
+ libxl_mac mac;
int trusted;
- uint8_t back_mac[6];
+ libxl_mac back_mac;
int filter_mac;
} libxl_net2info;
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Ian Campbell
2010-Aug-03 11:00 UTC
[Xen-devel] [PATCH 3 of 8] libxl: move type definitions into _libxl_types.h
# HG changeset patch
# User Ian Campbell <ian.campbell@citrix.com>
# Date 1280829586 -3600
# Node ID e2888d315d13173ddbd8076b971d71b7deb9ef53
# Parent 81cc53cbda33b5cd4c498c41b3eafd73f16b15e1
libxl: move type definitions into _libxl_types.h
The intention is to autogenerate this file in a future patch. This
pure code motion patch allows for easier before and after comparison
of that patch.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
diff -r 81cc53cbda33 -r e2888d315d13 tools/libxl/Makefile
--- a/tools/libxl/Makefile Tue Aug 03 10:58:48 2010 +0100
+++ b/tools/libxl/Makefile Tue Aug 03 10:59:46 2010 +0100
@@ -103,12 +103,15 @@ install: all
ln -sf libxlutil.so.$(XLUMAJOR).$(XLUMINOR)
$(DESTDIR)$(LIBDIR)/libxlutil.so.$(XLUMAJOR)
ln -sf libxlutil.so.$(XLUMAJOR) $(DESTDIR)$(LIBDIR)/libxlutil.so
$(INSTALL_DATA) libxlutil.a $(DESTDIR)$(LIBDIR)
- $(INSTALL_DATA) libxl.h $(DESTDIR)$(INCLUDEDIR)
+ $(INSTALL_DATA) libxl.h _libxl_types.h $(DESTDIR)$(INCLUDEDIR)
$(INSTALL_DATA) bash-completion $(DESTDIR)$(BASH_COMPLETION_DIR)/xl.sh
.PHONY: clean
clean:
+ # XXX Preserve during transition to autogeneration
+ cp _libxl_types.h SAVED__libxl_types.h
$(RM) -f _*.h *.o *.so* *.a $(CLIENTS) $(DEPS)
+ mv SAVED__libxl_types.h _libxl_types.h
# $(RM) -f $(AUTOSRCS) $(AUTOINCS)
distclean: clean
diff -r 81cc53cbda33 -r e2888d315d13 tools/libxl/_libxl_types.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/libxl/_libxl_types.h Tue Aug 03 10:59:46 2010 +0100
@@ -0,0 +1,243 @@
+#ifndef __LIBXL_TYPES_H
+#define __LIBXL_TYPES_H
+
+typedef struct {
+ libxl_uuid uuid;
+ uint32_t domid;
+ uint8_t running:1;
+ uint8_t blocked:1;
+ uint8_t paused:1;
+ uint8_t shutdown:1;
+ uint8_t dying:1;
+
+ /*
+ * Valid SHUTDOWN_* value from xen/sched.h iff (shutdown||dying).
+ *
+ * Otherwise set to a value guaranteed not to clash with any valid
+ * SHUTDOWN_* constant.
+ */
+ unsigned int shutdown_reason;
+
+ uint64_t max_memkb;
+ uint64_t cpu_time;
+ uint32_t vcpu_max_id;
+ uint32_t vcpu_online;
+} libxl_dominfo;
+
+typedef struct {
+ uint32_t poolid;
+} libxl_poolinfo;
+
+typedef struct {
+ libxl_uuid uuid;
+ uint32_t domid;
+} libxl_vminfo;
+
+typedef struct {
+ int xen_version_major;
+ int xen_version_minor;
+ char *xen_version_extra;
+ char *compiler;
+ char *compile_by;
+ char *compile_domain;
+ char *compile_date;
+ char *capabilities;
+ char *changeset;
+ unsigned long virt_start;
+ unsigned long pagesize;
+ char *commandline;
+} libxl_version_info;
+
+typedef struct {
+ bool hvm;
+ bool hap;
+ bool oos;
+ int ssidref;
+ char *name;
+ libxl_uuid uuid;
+ char **xsdata;
+ char **platformdata;
+ uint32_t poolid;
+ char *poolname;
+} libxl_domain_create_info;
+
+typedef struct {
+ /*
+ * Path is always set if the file refernece is valid. However if
+ * mapped is true then the actual file may already be unlinked.
+ */
+ char *path;
+ int mapped;
+ void *data;
+ size_t size;
+} libxl_file_reference;
+
+/*
+ * Instances of libxl_file_reference contained in this struct which
+ * have been mapped (with libxl_file_reference_map) will be unmapped
+ * by libxl_domain_build/restore. If either of these are never called
+ * then the user is responsible for calling
+ * libxl_file_reference_unmap.
+ */
+typedef struct {
+ int max_vcpus;
+ int cur_vcpus;
+ int tsc_mode;
+ uint32_t max_memkb;
+ uint32_t target_memkb;
+ uint32_t video_memkb;
+ uint32_t shadow_memkb;
+ bool disable_migrate;
+ libxl_file_reference kernel;
+ int hvm;
+ union {
+ struct {
+ bool pae;
+ bool apic;
+ bool acpi;
+ bool nx;
+ bool viridian;
+ char *timeoffset;
+ bool hpet;
+ bool vpt_align;
+ int timer_mode;
+ } hvm;
+ struct {
+ uint32_t slack_memkb;
+ const char *bootloader;
+ const char *bootloader_args;
+ char *cmdline;
+ libxl_file_reference ramdisk;
+ const char *features;
+ } pv;
+ } u;
+} libxl_domain_build_info;
+
+typedef struct {
+ uint32_t store_port;
+ unsigned long store_mfn;
+ uint32_t console_port;
+ unsigned long console_mfn;
+} libxl_domain_build_state;
+
+typedef struct {
+ int domid;
+ libxl_uuid uuid; /* this is use only with stubdom, and must be different
from the domain uuid */
+ char *dom_name;
+ char *device_model;
+ char *saved_state;
+ libxl_qemu_machine_type type;
+ int videoram; /* size of the videoram in MB */
+ bool stdvga; /* stdvga enabled or disabled */
+ bool vnc; /* vnc enabled or disabled */
+ char *vnclisten; /* address:port that should be listened on for the VNC
server if vnc is set */
+ char *vncpasswd; /* the VNC password */
+ int vncdisplay; /* set VNC display number */
+ bool vncunused; /* try to find an unused port for the VNC server */
+ char *keymap; /* set keyboard layout, default is en-us keyboard */
+ bool sdl; /* sdl enabled or disabled */
+ bool opengl; /* opengl enabled or disabled (if enabled requires sdl
enabled) */
+ bool nographic; /* no graphics, use serial port */
+ char *serial; /* serial port re-direct to pty deivce */
+ char *boot; /* boot order, for example dca */
+ bool usb; /* usb support enabled or disabled */
+ char *usbdevice; /* enable usb mouse: tablet for absolute mouse, mouse for
PS/2 protocol relative mouse */
+ char *soundhw; /* enable sound hardware */
+ bool apic; /* apic enabled or disabled */
+ int vcpus; /* max number of vcpus */
+ int vcpu_avail; /* vcpus actually available */
+ int xen_platform_pci; /* enable/disable the xen platform pci device */
+ char **extra; /* extra parameters pass directly to qemu, NULL terminated */
+ /* Network is missing */
+} libxl_device_model_info;
+
+typedef struct {
+ uint32_t backend_domid;
+ uint32_t domid;
+ int devid;
+ bool vnc; /* vnc enabled or disabled */
+ char *vnclisten; /* address:port that should be listened on for the VNC
server if vnc is set */
+ char *vncpasswd; /* the VNC password */
+ int vncdisplay; /* set VNC display number */
+ bool vncunused; /* try to find an unused port for the VNC server */
+ char *keymap; /* set keyboard layout, default is en-us keyboard */
+ bool sdl; /* sdl enabled or disabled */
+ bool opengl; /* opengl enabled or disabled (if enabled requires sdl
enabled) */
+ char *display;
+ char *xauthority;
+} libxl_device_vfb;
+
+typedef struct {
+ uint32_t backend_domid;
+ uint32_t domid;
+ int devid;
+} libxl_device_vkb;
+
+typedef struct {
+ uint32_t backend_domid;
+ uint32_t domid;
+ int devid;
+ libxl_console_constype constype;
+ libxl_domain_build_state *build_state;
+} libxl_device_console;
+
+typedef struct {
+ uint32_t backend_domid;
+ uint32_t domid;
+ char *physpath;
+ libxl_disk_phystype phystype;
+ char *virtpath;
+ int unpluggable;
+ int readwrite;
+ int is_cdrom;
+} libxl_device_disk;
+
+typedef struct {
+ uint32_t backend_domid;
+ uint32_t domid;
+ int devid;
+ int mtu;
+ char *model;
+ libxl_mac mac;
+ struct in_addr ip;
+ char *bridge;
+ char *ifname;
+ char *script;
+ libxl_nic_type nictype;
+} libxl_device_nic;
+
+typedef struct {
+ int devid;
+ libxl_mac front_mac;
+ libxl_mac back_mac;
+ uint32_t backend_domid;
+ uint32_t domid;
+ uint32_t trusted:1;
+ uint32_t back_trusted:1;
+ uint32_t filter_mac:1;
+ uint32_t front_filter_mac:1;
+ uint32_t pdev;
+ uint32_t max_bypasses;
+ char *bridge;
+} libxl_device_net2;
+
+typedef struct {
+ union {
+ unsigned int value;
+ struct {
+ unsigned int reserved1:2;
+ unsigned int reg:6;
+ unsigned int func:3;
+ unsigned int dev:5;
+ unsigned int bus:8;
+ unsigned int reserved2:7;
+ unsigned int enable:1;
+ };
+ };
+ unsigned int domain;
+ unsigned int vdevfn;
+ bool msitranslate;
+ bool power_mgmt;
+} libxl_device_pci;
+
+#endif /* __LIBXL_TYPES_H */
diff -r 81cc53cbda33 -r e2888d315d13 tools/libxl/libxl.h
--- a/tools/libxl/libxl.h Tue Aug 03 10:58:48 2010 +0100
+++ b/tools/libxl/libxl.h Tue Aug 03 10:59:46 2010 +0100
@@ -26,52 +26,31 @@ typedef uint8_t libxl_uuid[16];
typedef uint8_t libxl_mac[6];
-typedef struct {
- libxl_uuid uuid;
- uint32_t domid;
- uint8_t running:1;
- uint8_t blocked:1;
- uint8_t paused:1;
- uint8_t shutdown:1;
- uint8_t dying:1;
+typedef enum {
+ XENFV = 1,
+ XENPV,
+} libxl_qemu_machine_type;
- /*
- * Valid SHUTDOWN_* value from xen/sched.h iff (shutdown||dying).
- *
- * Otherwise set to a value guaranteed not to clash with any valid
- * SHUTDOWN_* constant.
- */
- unsigned int shutdown_reason;
+typedef enum {
+ CONSTYPE_XENCONSOLED,
+ CONSTYPE_IOEMU,
+} libxl_console_constype;
- uint64_t max_memkb;
- uint64_t cpu_time;
- uint32_t vcpu_max_id;
- uint32_t vcpu_online;
-} libxl_dominfo;
+typedef enum {
+ PHYSTYPE_QCOW = 1,
+ PHYSTYPE_QCOW2,
+ PHYSTYPE_VHD,
+ PHYSTYPE_AIO,
+ PHYSTYPE_FILE,
+ PHYSTYPE_PHY,
+} libxl_disk_phystype;
-typedef struct {
- uint32_t poolid;
-} libxl_poolinfo;
+typedef enum {
+ NICTYPE_IOEMU = 1,
+ NICTYPE_VIF,
+} libxl_nic_type;
-typedef struct {
- libxl_uuid uuid;
- uint32_t domid;
-} libxl_vminfo;
-
-typedef struct {
- int xen_version_major;
- int xen_version_minor;
- char *xen_version_extra;
- char *compiler;
- char *compile_by;
- char *compile_domain;
- char *compile_date;
- char *capabilities;
- char *changeset;
- unsigned long virt_start;
- unsigned long pagesize;
- char *commandline;
-} libxl_version_info;
+#include "_libxl_types.h"
typedef struct {
xentoollog_logger *lg;
@@ -92,227 +71,11 @@ const libxl_version_info* libxl_get_vers
const libxl_version_info* libxl_get_version_info(libxl_ctx *ctx);
typedef struct {
- bool hvm;
- bool hap;
- bool oos;
- int ssidref;
- char *name;
- libxl_uuid uuid;
- char **xsdata;
- char **platformdata;
- uint32_t poolid;
- char *poolname;
-} libxl_domain_create_info;
-
-typedef struct {
- /*
- * Path is always set if the file refernece is valid. However if
- * mapped is true then the actual file may already be unlinked.
- */
- char *path;
- int mapped;
- void *data;
- size_t size;
-} libxl_file_reference;
-
-/*
- * Instances of libxl_file_reference contained in this struct which
- * have been mapped (with libxl_file_reference_map) will be unmapped
- * by libxl_domain_build/restore. If either of these are never called
- * then the user is responsible for calling
- * libxl_file_reference_unmap.
- */
-typedef struct {
- int max_vcpus;
- int cur_vcpus;
- int tsc_mode;
- uint32_t max_memkb;
- uint32_t target_memkb;
- uint32_t video_memkb;
- uint32_t shadow_memkb;
- bool disable_migrate;
- libxl_file_reference kernel;
- int hvm;
- union {
- struct {
- bool pae;
- bool apic;
- bool acpi;
- bool nx;
- bool viridian;
- char *timeoffset;
- bool hpet;
- bool vpt_align;
- int timer_mode;
- } hvm;
- struct {
- uint32_t slack_memkb;
- const char *bootloader;
- const char *bootloader_args;
- char *cmdline;
- libxl_file_reference ramdisk;
- const char *features;
- } pv;
- } u;
-} libxl_domain_build_info;
-
-typedef struct {
- uint32_t store_port;
- unsigned long store_mfn;
- uint32_t console_port;
- unsigned long console_mfn;
-} libxl_domain_build_state;
-
-typedef struct {
#define XL_SUSPEND_DEBUG 1
#define XL_SUSPEND_LIVE 2
int flags;
int (*suspend_callback)(void *, int);
} libxl_domain_suspend_info;
-
-typedef enum {
- XENFV = 1,
- XENPV,
-} libxl_qemu_machine_type;
-
-typedef struct {
- int domid;
- libxl_uuid uuid; /* this is use only with stubdom, and must be different
from the domain uuid */
- char *dom_name;
- char *device_model;
- char *saved_state;
- libxl_qemu_machine_type type;
- int videoram; /* size of the videoram in MB */
- bool stdvga; /* stdvga enabled or disabled */
- bool vnc; /* vnc enabled or disabled */
- char *vnclisten; /* address:port that should be listened on for the VNC
server if vnc is set */
- char *vncpasswd; /* the VNC password */
- int vncdisplay; /* set VNC display number */
- bool vncunused; /* try to find an unused port for the VNC server */
- char *keymap; /* set keyboard layout, default is en-us keyboard */
- bool sdl; /* sdl enabled or disabled */
- bool opengl; /* opengl enabled or disabled (if enabled requires sdl
enabled) */
- bool nographic; /* no graphics, use serial port */
- char *serial; /* serial port re-direct to pty deivce */
- char *boot; /* boot order, for example dca */
- bool usb; /* usb support enabled or disabled */
- char *usbdevice; /* enable usb mouse: tablet for absolute mouse, mouse for
PS/2 protocol relative mouse */
- char *soundhw; /* enable sound hardware */
- bool apic; /* apic enabled or disabled */
- int vcpus; /* max number of vcpus */
- int vcpu_avail; /* vcpus actually available */
- int xen_platform_pci; /* enable/disable the xen platform pci device */
- char **extra; /* extra parameters pass directly to qemu, NULL terminated */
- /* Network is missing */
-} libxl_device_model_info;
-
-typedef struct {
- uint32_t backend_domid;
- uint32_t domid;
- int devid;
- bool vnc; /* vnc enabled or disabled */
- char *vnclisten; /* address:port that should be listened on for the VNC
server if vnc is set */
- char *vncpasswd; /* the VNC password */
- int vncdisplay; /* set VNC display number */
- bool vncunused; /* try to find an unused port for the VNC server */
- char *keymap; /* set keyboard layout, default is en-us keyboard */
- bool sdl; /* sdl enabled or disabled */
- bool opengl; /* opengl enabled or disabled (if enabled requires sdl
enabled) */
- char *display;
- char *xauthority;
-} libxl_device_vfb;
-
-typedef struct {
- uint32_t backend_domid;
- uint32_t domid;
- int devid;
-} libxl_device_vkb;
-
-typedef enum {
- CONSTYPE_XENCONSOLED,
- CONSTYPE_IOEMU,
-} libxl_console_constype;
-
-typedef struct {
- uint32_t backend_domid;
- uint32_t domid;
- int devid;
- libxl_console_constype constype;
- libxl_domain_build_state *build_state;
-} libxl_device_console;
-
-typedef enum {
- PHYSTYPE_QCOW = 1,
- PHYSTYPE_QCOW2,
- PHYSTYPE_VHD,
- PHYSTYPE_AIO,
- PHYSTYPE_FILE,
- PHYSTYPE_PHY,
-} libxl_disk_phystype;
-
-typedef struct {
- uint32_t backend_domid;
- uint32_t domid;
- char *physpath;
- libxl_disk_phystype phystype;
- char *virtpath;
- int unpluggable;
- int readwrite;
- int is_cdrom;
-} libxl_device_disk;
-
-typedef enum {
- NICTYPE_IOEMU = 1,
- NICTYPE_VIF,
-} libxl_nic_type;
-
-typedef struct {
- uint32_t backend_domid;
- uint32_t domid;
- int devid;
- int mtu;
- char *model;
- libxl_mac mac;
- struct in_addr ip;
- char *bridge;
- char *ifname;
- char *script;
- libxl_nic_type nictype;
-} libxl_device_nic;
-
-typedef struct {
- int devid;
- libxl_mac front_mac;
- libxl_mac back_mac;
- uint32_t backend_domid;
- uint32_t domid;
- uint32_t trusted:1;
- uint32_t back_trusted:1;
- uint32_t filter_mac:1;
- uint32_t front_filter_mac:1;
- uint32_t pdev;
- uint32_t max_bypasses;
- char *bridge;
-} libxl_device_net2;
-
-typedef struct {
- union {
- unsigned int value;
- struct {
- unsigned int reserved1:2;
- unsigned int reg:6;
- unsigned int func:3;
- unsigned int dev:5;
- unsigned int bus:8;
- unsigned int reserved2:7;
- unsigned int enable:1;
- };
- };
- unsigned int domain;
- unsigned int vdevfn;
- bool msitranslate;
- bool power_mgmt;
-} libxl_device_pci;
enum {
ERROR_VERSION = -1,
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel
Ian Campbell
2010-Aug-03 11:00 UTC
[Xen-devel] [PATCH 4 of 8] libxl: tweak formatting/whitespace of _libxl_types.h
# HG changeset patch
# User Ian Campbell <ian.campbell@citrix.com>
# Date 1280829586 -3600
# Node ID cce2e854fa97f300e1efe486a02950c7b93ac339
# Parent e2888d315d13173ddbd8076b971d71b7deb9ef53
libxl: tweak formatting/whitespace of _libxl_types.h
to better suit autogeneration
This makes it easier to do a before/after comparison when the file
becomes autogenerated.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
diff -r e2888d315d13 -r cce2e854fa97 tools/libxl/_libxl_types.h
--- a/tools/libxl/_libxl_types.h Tue Aug 03 10:59:46 2010 +0100
+++ b/tools/libxl/_libxl_types.h Tue Aug 03 10:59:46 2010 +0100
@@ -9,7 +9,6 @@ typedef struct {
uint8_t paused:1;
uint8_t shutdown:1;
uint8_t dying:1;
-
/*
* Valid SHUTDOWN_* value from xen/sched.h iff (shutdown||dying).
*
@@ -17,7 +16,6 @@ typedef struct {
* SHUTDOWN_* constant.
*/
unsigned int shutdown_reason;
-
uint64_t max_memkb;
uint64_t cpu_time;
uint32_t vcpu_max_id;
@@ -36,16 +34,16 @@ typedef struct {
typedef struct {
int xen_version_major;
int xen_version_minor;
- char *xen_version_extra;
- char *compiler;
- char *compile_by;
- char *compile_domain;
- char *compile_date;
- char *capabilities;
- char *changeset;
+ char * xen_version_extra;
+ char * compiler;
+ char * compile_by;
+ char * compile_domain;
+ char * compile_date;
+ char * capabilities;
+ char * changeset;
unsigned long virt_start;
unsigned long pagesize;
- char *commandline;
+ char * commandline;
} libxl_version_info;
typedef struct {
@@ -53,12 +51,12 @@ typedef struct {
bool hap;
bool oos;
int ssidref;
- char *name;
+ char * name;
libxl_uuid uuid;
- char **xsdata;
- char **platformdata;
+ char ** xsdata;
+ char ** platformdata;
uint32_t poolid;
- char *poolname;
+ char * poolname;
} libxl_domain_create_info;
typedef struct {
@@ -66,9 +64,9 @@ typedef struct {
* Path is always set if the file refernece is valid. However if
* mapped is true then the actual file may already be unlinked.
*/
- char *path;
+ char * path;
int mapped;
- void *data;
+ void * data;
size_t size;
} libxl_file_reference;
@@ -97,18 +95,18 @@ typedef struct {
bool acpi;
bool nx;
bool viridian;
- char *timeoffset;
+ char * timeoffset;
bool hpet;
bool vpt_align;
int timer_mode;
} hvm;
struct {
- uint32_t slack_memkb;
- const char *bootloader;
- const char *bootloader_args;
- char *cmdline;
+ uint32_t slack_memkb;
+ const char * bootloader;
+ const char * bootloader_args;
+ char * cmdline;
libxl_file_reference ramdisk;
- const char *features;
+ const char * features;
} pv;
} u;
} libxl_domain_build_info;
@@ -120,51 +118,145 @@ typedef struct {
unsigned long console_mfn;
} libxl_domain_build_state;
+/*
+ * Device Model information.
+ *
+ * Network is missing
+ */
typedef struct {
int domid;
- libxl_uuid uuid; /* this is use only with stubdom, and must be different
from the domain uuid */
- char *dom_name;
- char *device_model;
- char *saved_state;
+ /*
+ * this is use only with stubdom, and must be different from the domain
uuid
+ */
+ libxl_uuid uuid;
+ char * dom_name;
+ char * device_model;
+ char * saved_state;
libxl_qemu_machine_type type;
- int videoram; /* size of the videoram in MB */
- bool stdvga; /* stdvga enabled or disabled */
- bool vnc; /* vnc enabled or disabled */
- char *vnclisten; /* address:port that should be listened on for the VNC
server if vnc is set */
- char *vncpasswd; /* the VNC password */
- int vncdisplay; /* set VNC display number */
- bool vncunused; /* try to find an unused port for the VNC server */
- char *keymap; /* set keyboard layout, default is en-us keyboard */
- bool sdl; /* sdl enabled or disabled */
- bool opengl; /* opengl enabled or disabled (if enabled requires sdl
enabled) */
- bool nographic; /* no graphics, use serial port */
- char *serial; /* serial port re-direct to pty deivce */
- char *boot; /* boot order, for example dca */
- bool usb; /* usb support enabled or disabled */
- char *usbdevice; /* enable usb mouse: tablet for absolute mouse, mouse for
PS/2 protocol relative mouse */
- char *soundhw; /* enable sound hardware */
- bool apic; /* apic enabled or disabled */
- int vcpus; /* max number of vcpus */
- int vcpu_avail; /* vcpus actually available */
- int xen_platform_pci; /* enable/disable the xen platform pci device */
- char **extra; /* extra parameters pass directly to qemu, NULL terminated */
- /* Network is missing */
+ /*
+ * size of the videoram in MB
+ */
+ int videoram;
+ /*
+ * stdvga enabled or disabled
+ */
+ bool stdvga;
+ /*
+ * vnc enabled or disabled
+ */
+ bool vnc;
+ /*
+ * address:port that should be listened on for the VNC server if vnc is set
+ */
+ char * vnclisten;
+ /*
+ * the VNC password
+ */
+ char * vncpasswd;
+ /*
+ * set VNC display number
+ */
+ int vncdisplay;
+ /*
+ * try to find an unused port for the VNC server
+ */
+ bool vncunused;
+ /*
+ * set keyboard layout, default is en-us keyboard
+ */
+ char * keymap;
+ /*
+ * sdl enabled or disabled
+ */
+ bool sdl;
+ /*
+ * opengl enabled or disabled (if enabled requires sdl enabled)
+ */
+ bool opengl;
+ /*
+ * no graphics, use serial port
+ */
+ bool nographic;
+ /*
+ * serial port re-direct to pty deivce
+ */
+ char * serial;
+ /*
+ * boot order, for example dca
+ */
+ char * boot;
+ /*
+ * usb support enabled or disabled
+ */
+ bool usb;
+ /*
+ * enable usb mouse: tablet for absolute mouse, mouse for PS/2 protocol
relative mouse
+ */
+ char * usbdevice;
+ /*
+ * enable sound hardware
+ */
+ char * soundhw;
+ /*
+ * apic enabled or disabled
+ */
+ bool apic;
+ /*
+ * max number of vcpus
+ */
+ int vcpus;
+ /*
+ * vcpus actually available
+ */
+ int vcpu_avail;
+ /*
+ * enable/disable the xen platform pci device
+ */
+ int xen_platform_pci;
+ /*
+ * extra parameters pass directly to qemu, NULL terminated
+ */
+ char ** extra;
} libxl_device_model_info;
typedef struct {
uint32_t backend_domid;
uint32_t domid;
int devid;
- bool vnc; /* vnc enabled or disabled */
- char *vnclisten; /* address:port that should be listened on for the VNC
server if vnc is set */
- char *vncpasswd; /* the VNC password */
- int vncdisplay; /* set VNC display number */
- bool vncunused; /* try to find an unused port for the VNC server */
- char *keymap; /* set keyboard layout, default is en-us keyboard */
- bool sdl; /* sdl enabled or disabled */
- bool opengl; /* opengl enabled or disabled (if enabled requires sdl
enabled) */
- char *display;
- char *xauthority;
+ /*
+ * vnc enabled or disabled
+ */
+ bool vnc;
+ /*
+ * address:port that should be listened on for the VNC server if vnc is set
+ */
+ char * vnclisten;
+ /*
+ * the VNC password
+ */
+ char * vncpasswd;
+ /*
+ * set VNC display number
+ */
+ int vncdisplay;
+ /*
+ * try to find an unused port for the VNC server
+ */
+ bool vncunused;
+ /*
+ * set keyboard layout, default is en-us keyboard
+ */
+ char * keymap;
+ /*
+ * sdl enabled or disabled
+ */
+ bool sdl;
+ /*
+ * opengl enabled or disabled (if enabled requires sdl enabled)
+ */
+ bool opengl;
+ char * display;
+ char * xauthority;
} libxl_device_vfb;
typedef struct {
@@ -178,15 +270,15 @@ typedef struct {
uint32_t domid;
int devid;
libxl_console_constype constype;
- libxl_domain_build_state *build_state;
+ libxl_domain_build_state * build_state;
} libxl_device_console;
typedef struct {
uint32_t backend_domid;
uint32_t domid;
- char *physpath;
+ char * physpath;
libxl_disk_phystype phystype;
- char *virtpath;
+ char * virtpath;
int unpluggable;
int readwrite;
int is_cdrom;
@@ -197,12 +289,12 @@ typedef struct {
uint32_t domid;
int devid;
int mtu;
- char *model;
+ char * model;
libxl_mac mac;
struct in_addr ip;
- char *bridge;
- char *ifname;
- char *script;
+ char * bridge;
+ char * ifname;
+ char * script;
libxl_nic_type nictype;
} libxl_device_nic;
@@ -218,7 +310,7 @@ typedef struct {
uint32_t front_filter_mac:1;
uint32_t pdev;
uint32_t max_bypasses;
- char *bridge;
+ char * bridge;
} libxl_device_net2;
typedef struct {
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel
Ian Campbell
2010-Aug-03 11:00 UTC
[Xen-devel] [PATCH 5 of 8] libxl: autogenerate _libxl_types.h
# HG changeset patch
# User Ian Campbell <ian.campbell@citrix.com>
# Date 1280829586 -3600
# Node ID c87dd259a8ed069d8786aadf9e1f6e555aa6778e
# Parent cce2e854fa97f300e1efe486a02950c7b93ac339
libxl: autogenerate _libxl_types.h
The libxl interface types are represented by a simple python data
structure (which could be parsed from a bespoke language in the
future).
This will allow the autogeneration of functions to free the component
members of the libxl types. In the future it may also enable auto
generation of type marshalling code for language bindings.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
diff -r cce2e854fa97 -r c87dd259a8ed tools/libxl/Makefile
--- a/tools/libxl/Makefile Tue Aug 03 10:59:46 2010 +0100
+++ b/tools/libxl/Makefile Tue Aug 03 10:59:46 2010 +0100
@@ -51,6 +51,12 @@ _libxl_paths.h: genpath
mv _$@ $@
libxl_paths.c: _libxl_paths.h
+
+libxl.h: _libxl_types.h
+
+_libxl_types.h: gentypes.py libxltypes.py
+ python gentypes.py __libxl_types.h
+ mv __libxl_types.h _libxl_types.h
libxenlight.so: libxenlight.so.$(MAJOR)
ln -sf $< $@
@@ -108,10 +114,7 @@ install: all
.PHONY: clean
clean:
- # XXX Preserve during transition to autogeneration
- cp _libxl_types.h SAVED__libxl_types.h
$(RM) -f _*.h *.o *.so* *.a $(CLIENTS) $(DEPS)
- mv SAVED__libxl_types.h _libxl_types.h
# $(RM) -f $(AUTOSRCS) $(AUTOINCS)
distclean: clean
diff -r cce2e854fa97 -r c87dd259a8ed tools/libxl/_libxl_types.h
--- a/tools/libxl/_libxl_types.h Tue Aug 03 10:59:46 2010 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,335 +0,0 @@
-#ifndef __LIBXL_TYPES_H
-#define __LIBXL_TYPES_H
-
-typedef struct {
- libxl_uuid uuid;
- uint32_t domid;
- uint8_t running:1;
- uint8_t blocked:1;
- uint8_t paused:1;
- uint8_t shutdown:1;
- uint8_t dying:1;
- /*
- * Valid SHUTDOWN_* value from xen/sched.h iff (shutdown||dying).
- *
- * Otherwise set to a value guaranteed not to clash with any valid
- * SHUTDOWN_* constant.
- */
- unsigned int shutdown_reason;
- uint64_t max_memkb;
- uint64_t cpu_time;
- uint32_t vcpu_max_id;
- uint32_t vcpu_online;
-} libxl_dominfo;
-
-typedef struct {
- uint32_t poolid;
-} libxl_poolinfo;
-
-typedef struct {
- libxl_uuid uuid;
- uint32_t domid;
-} libxl_vminfo;
-
-typedef struct {
- int xen_version_major;
- int xen_version_minor;
- char * xen_version_extra;
- char * compiler;
- char * compile_by;
- char * compile_domain;
- char * compile_date;
- char * capabilities;
- char * changeset;
- unsigned long virt_start;
- unsigned long pagesize;
- char * commandline;
-} libxl_version_info;
-
-typedef struct {
- bool hvm;
- bool hap;
- bool oos;
- int ssidref;
- char * name;
- libxl_uuid uuid;
- char ** xsdata;
- char ** platformdata;
- uint32_t poolid;
- char * poolname;
-} libxl_domain_create_info;
-
-typedef struct {
- /*
- * Path is always set if the file refernece is valid. However if
- * mapped is true then the actual file may already be unlinked.
- */
- char * path;
- int mapped;
- void * data;
- size_t size;
-} libxl_file_reference;
-
-/*
- * Instances of libxl_file_reference contained in this struct which
- * have been mapped (with libxl_file_reference_map) will be unmapped
- * by libxl_domain_build/restore. If either of these are never called
- * then the user is responsible for calling
- * libxl_file_reference_unmap.
- */
-typedef struct {
- int max_vcpus;
- int cur_vcpus;
- int tsc_mode;
- uint32_t max_memkb;
- uint32_t target_memkb;
- uint32_t video_memkb;
- uint32_t shadow_memkb;
- bool disable_migrate;
- libxl_file_reference kernel;
- int hvm;
- union {
- struct {
- bool pae;
- bool apic;
- bool acpi;
- bool nx;
- bool viridian;
- char * timeoffset;
- bool hpet;
- bool vpt_align;
- int timer_mode;
- } hvm;
- struct {
- uint32_t slack_memkb;
- const char * bootloader;
- const char * bootloader_args;
- char * cmdline;
- libxl_file_reference ramdisk;
- const char * features;
- } pv;
- } u;
-} libxl_domain_build_info;
-
-typedef struct {
- uint32_t store_port;
- unsigned long store_mfn;
- uint32_t console_port;
- unsigned long console_mfn;
-} libxl_domain_build_state;
-
-/*
- * Device Model information.
- *
- * Network is missing
- */
-typedef struct {
- int domid;
- /*
- * this is use only with stubdom, and must be different from the domain
uuid
- */
- libxl_uuid uuid;
- char * dom_name;
- char * device_model;
- char * saved_state;
- libxl_qemu_machine_type type;
- /*
- * size of the videoram in MB
- */
- int videoram;
- /*
- * stdvga enabled or disabled
- */
- bool stdvga;
- /*
- * vnc enabled or disabled
- */
- bool vnc;
- /*
- * address:port that should be listened on for the VNC server if vnc is set
- */
- char * vnclisten;
- /*
- * the VNC password
- */
- char * vncpasswd;
- /*
- * set VNC display number
- */
- int vncdisplay;
- /*
- * try to find an unused port for the VNC server
- */
- bool vncunused;
- /*
- * set keyboard layout, default is en-us keyboard
- */
- char * keymap;
- /*
- * sdl enabled or disabled
- */
- bool sdl;
- /*
- * opengl enabled or disabled (if enabled requires sdl enabled)
- */
- bool opengl;
- /*
- * no graphics, use serial port
- */
- bool nographic;
- /*
- * serial port re-direct to pty deivce
- */
- char * serial;
- /*
- * boot order, for example dca
- */
- char * boot;
- /*
- * usb support enabled or disabled
- */
- bool usb;
- /*
- * enable usb mouse: tablet for absolute mouse, mouse for PS/2 protocol
relative mouse
- */
- char * usbdevice;
- /*
- * enable sound hardware
- */
- char * soundhw;
- /*
- * apic enabled or disabled
- */
- bool apic;
- /*
- * max number of vcpus
- */
- int vcpus;
- /*
- * vcpus actually available
- */
- int vcpu_avail;
- /*
- * enable/disable the xen platform pci device
- */
- int xen_platform_pci;
- /*
- * extra parameters pass directly to qemu, NULL terminated
- */
- char ** extra;
-} libxl_device_model_info;
-
-typedef struct {
- uint32_t backend_domid;
- uint32_t domid;
- int devid;
- /*
- * vnc enabled or disabled
- */
- bool vnc;
- /*
- * address:port that should be listened on for the VNC server if vnc is set
- */
- char * vnclisten;
- /*
- * the VNC password
- */
- char * vncpasswd;
- /*
- * set VNC display number
- */
- int vncdisplay;
- /*
- * try to find an unused port for the VNC server
- */
- bool vncunused;
- /*
- * set keyboard layout, default is en-us keyboard
- */
- char * keymap;
- /*
- * sdl enabled or disabled
- */
- bool sdl;
- /*
- * opengl enabled or disabled (if enabled requires sdl enabled)
- */
- bool opengl;
- char * display;
- char * xauthority;
-} libxl_device_vfb;
-
-typedef struct {
- uint32_t backend_domid;
- uint32_t domid;
- int devid;
-} libxl_device_vkb;
-
-typedef struct {
- uint32_t backend_domid;
- uint32_t domid;
- int devid;
- libxl_console_constype constype;
- libxl_domain_build_state * build_state;
-} libxl_device_console;
-
-typedef struct {
- uint32_t backend_domid;
- uint32_t domid;
- char * physpath;
- libxl_disk_phystype phystype;
- char * virtpath;
- int unpluggable;
- int readwrite;
- int is_cdrom;
-} libxl_device_disk;
-
-typedef struct {
- uint32_t backend_domid;
- uint32_t domid;
- int devid;
- int mtu;
- char * model;
- libxl_mac mac;
- struct in_addr ip;
- char * bridge;
- char * ifname;
- char * script;
- libxl_nic_type nictype;
-} libxl_device_nic;
-
-typedef struct {
- int devid;
- libxl_mac front_mac;
- libxl_mac back_mac;
- uint32_t backend_domid;
- uint32_t domid;
- uint32_t trusted:1;
- uint32_t back_trusted:1;
- uint32_t filter_mac:1;
- uint32_t front_filter_mac:1;
- uint32_t pdev;
- uint32_t max_bypasses;
- char * bridge;
-} libxl_device_net2;
-
-typedef struct {
- union {
- unsigned int value;
- struct {
- unsigned int reserved1:2;
- unsigned int reg:6;
- unsigned int func:3;
- unsigned int dev:5;
- unsigned int bus:8;
- unsigned int reserved2:7;
- unsigned int enable:1;
- };
- };
- unsigned int domain;
- unsigned int vdevfn;
- bool msitranslate;
- bool power_mgmt;
-} libxl_device_pci;
-
-#endif /* __LIBXL_TYPES_H */
diff -r cce2e854fa97 -r c87dd259a8ed tools/libxl/gentypes.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/libxl/gentypes.py Tue Aug 03 10:59:46 2010 +0100
@@ -0,0 +1,86 @@
+#!/usr/bin/python
+import sys
+import re
+
+import libxltypes
+
+def format_comment(level, comment):
+ indent = reduce(lambda x,y: x + " ", range(level), "")
+ s = "%s/*\n" % indent
+ s += "%s * " % indent
+ comment = comment.replace("\n", "\n%s * " % indent)
+ x = re.compile(r''^%s \* $'' % indent, re.MULTILINE)
+ comment = x.sub("%s *" % indent, comment)
+ s += comment
+ s += "\n"
+ s += "%s */" % indent
+ s += "\n"
+ return s
+
+def libxl_C_type_of(ty):
+ return ty.typename
+
+def libxl_C_instance_of(ty, instancename):
+ if isinstance(ty, libxltypes.BitField):
+ return libxl_C_type_of(ty) + " " + instancename +
":%d" % ty.width
+ elif isinstance(ty, libxltypes.Aggregate) and ty.typename is None:
+ if instancename is None:
+ return libxl_C_type_define(ty)
+ else:
+ return libxl_C_type_define(ty) + " " + instancename
+ else:
+ return libxl_C_type_of(ty) + " " + instancename
+
+def libxl_C_type_define(ty, indent = ""):
+ s = ""
+ if isinstance(ty, libxltypes.Aggregate):
+ if ty.comment is not None:
+ s += format_comment(0, ty.comment)
+
+ if ty.name is None:
+ s += "%s {\n" % ty.kind
+ else:
+ s += "typedef %s {\n" % ty.kind
+
+ for f in ty.fields:
+ if f.comment is not None:
+ s += format_comment(4, f.comment)
+ x = libxl_C_instance_of(f.type, f.name)
+ if f.const:
+ x = "const " + x
+ x = x.replace("\n", "\n ")
+ s += " " + x + ";\n"
+ if ty.name is None:
+ s += "}"
+ else:
+ s += "} libxl_%s" % ty.name
+ else:
+ raise NotImplementedError("%s" % type(ty))
+ return s.replace("\n", "\n%s" % indent)
+
+if __name__ == ''__main__'':
+ if len(sys.argv) < 2:
+ print >>sys.stderr, "Usage: gentypes.py <header>"
+ sys.exit(1)
+
+ header = sys.argv[1]
+ print "outputting libxl types to %s" % header
+
+ f = open(header, "w")
+
+ f.write("""#ifndef __LIBXL_TYPES_H
+#define __LIBXL_TYPES_H
+
+/* DO NOT EDIT.
+ *
+ * This file is autogenerated by
+ * "%s"
+ */
+
+""" % " ".join(sys.argv))
+
+ for t in libxltypes.Types:
+ f.write(libxl_C_type_define(t) + ";\n")
+ f.write("\n")
+
+ f.write("""#endif /* __LIBXL_TYPES_H */\n""")
diff -r cce2e854fa97 -r c87dd259a8ed tools/libxl/libxltypes.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/libxl/libxltypes.py Tue Aug 03 10:59:46 2010 +0100
@@ -0,0 +1,377 @@
+class Type(object):
+ def __init__(self, typename, **kwargs):
+ self.comment = None
+ self.namespace = "libxl_"
+
+ if kwargs.has_key(''libxl_type''):
+ self.comment = kwargs[''comment'']
+
+ if kwargs.has_key(''namespace''):
+ self.namespace = kwargs[''namespace'']
+
+ if typename is None: # Anonymous type
+ self.typename = None
+ elif self.namespace is None: # e.g. system provided types
+ self.typename = typename
+ else:
+ self.typename = self.namespace + typename
+
+class Builtin(Type):
+ """Builtin type"""
+ def __init__(self, typename, namespace = "libxl_"):
+ Type.__init__(self, typename, namespace = namespace)
+
+class UInt(Type):
+ def __init__(self, w):
+ typename = "uint%d_t" % w
+ Type.__init__(self, typename, namespace = None)
+ self.width = w
+
+class BitField(Type):
+ def __init__(self, ty, w):
+ Type.__init__(self, ty.typename, namespace = ty.namespace)
+ self.width = w
+
+
+class Field(Type):
+ """An element of an Aggregate type"""
+ def __init__(self, type, name, const = False, comment = None):
+ Type.__init__(self,type.typename)
+ self.type = type
+ self.name = name
+ self.const = const
+ self.comment = comment
+
+class Aggregate(Type):
+ """A type containing a collection of other
types"""
+ def __init__(self, kind, name, fields, comment = None):
+ Type.__init__(self, name)
+ self.kind = kind
+ self.name = name
+ self.comment = comment
+ self.fields = []
+ for f in fields:
+ # (name, type[, const=False[, comment=None]])
+ if len(f) == 2:
+ n,t = f
+ const = False
+ comment = None
+ elif len(f) == 3:
+ n,t,const = f
+ comment = None
+ else:
+ n,t,const,comment = f
+ self.fields.append(Field(t,n,const,comment))
+
+class Struct(Aggregate):
+ def __init__(self, name, fields, comment = None):
+ Aggregate.__init__(self, "struct", name, fields, comment)
+
+class Union(Aggregate):
+ def __init__(self, name, fields, comment = None):
+ Aggregate.__init__(self, "union", name, fields, comment)
+
+class KeyValueList(Type):
+ """A map type"""
+ def __init__(self, ktype, vtype):
+ if ktype != string and vtype != string:
+ raise NotImplementedError("Only KeyValueList string ->
string is supported")
+
+ Type.__init__(self, "char **", namespace = None)
+
+class Reference(Type):
+ """A reference to another type"""
+ def __init__(self, ty):
+ # Ugh
+ Type.__init__(self, ty.name + " *")
+
+#
+# Standard Types
+#
+
+void = Builtin("void *", namespace = None)
+bool = Builtin("bool", namespace = None)
+size_t = Builtin("size_t", namespace = None)
+
+integer = Builtin("int", namespace = None)
+unsigned_integer = Builtin("unsigned int", namespace = None)
+unsigned = Builtin("unsigned int", namespace = None)
+unsigned_long = Builtin("unsigned long", namespace = None)
+
+uint8 = UInt(8)
+uint16 = UInt(16)
+uint32 = UInt(32)
+uint64 = UInt(64)
+
+domid = UInt(32)
+
+string = Builtin("char *", namespace = None)
+string_list = Builtin("char **", namespace = None)
+
+inaddr_ip = Builtin("struct in_addr", namespace = None)
+
+#
+# Builtin libxl types
+#
+
+libxl_ctx = Builtin("ctx")
+libxl_uuid = Builtin("uuid")
+libxl_mac = Builtin("mac")
+libxl_qemu_machine_type = Builtin("qemu_machine_type")
+libxl_console_constype = Builtin("console_constype")
+libxl_disk_phystype = Builtin("disk_phystype")
+libxl_nic_type = Builtin("nic_type")
+
+#
+# Complex libxl types
+#
+libxl_dominfo = Struct("dominfo",[
+ ("uuid", libxl_uuid),
+ ("domid", domid),
+ ("running", BitField(uint8, 1)),
+ ("blocked", BitField(uint8, 1)),
+ ("paused", BitField(uint8, 1)),
+ ("shutdown", BitField(uint8, 1)),
+ ("dying", BitField(uint8, 1)),
+
+ ("shutdown_reason", unsigned, False,
+"""Valid SHUTDOWN_* value from xen/sched.h iff
(shutdown||dying).
+
+Otherwise set to a value guaranteed not to clash with any valid
+SHUTDOWN_* constant."""),
+ ("max_memkb", uint64),
+ ("cpu_time", uint64),
+ ("vcpu_max_id", uint32),
+ ("vcpu_online", uint32),
+ ])
+
+libxl_poolinfo = Struct("poolinfo", [("poolid", uint32)])
+
+libxl_vminfo = Struct("vminfo", [
+ ("uuid", libxl_uuid),
+ ("domid", domid),
+ ])
+
+libxl_version_info = Struct("version_info", [
+ ("xen_version_major", integer),
+ ("xen_version_minor", integer),
+ ("xen_version_extra", string),
+ ("compiler", string),
+ ("compile_by", string),
+ ("compile_domain", string),
+ ("compile_date", string),
+ ("capabilities", string),
+ ("changeset", string),
+ ("virt_start", unsigned_long),
+ ("pagesize", unsigned_long),
+ ("commandline", string),
+ ])
+
+libxl_file_reference = Struct("file_reference",[
+ ("path", string, False,
+"""Path is always set if the file refernece is valid. However if
+mapped is true then the actual file may already be
unlinked."""),
+ ("mapped", integer),
+ ("data", void),
+ ("size", size_t)])
+
+libxl_domain_create_info = Struct("domain_create_info",[
+ ("hvm", bool),
+ ("hap", bool),
+ ("oos", bool),
+ ("ssidref", integer),
+ ("name", string),
+ ("uuid", libxl_uuid),
+ ("xsdata", KeyValueList(string, string)),
+ ("platformdata", KeyValueList(string, string)),
+ ("poolid", uint32),
+ ("poolname", string),
+ ])
+
+libxl_domain_build_info = Struct("domain_build_info",[
+ ("max_vcpus", integer),
+ ("cur_vcpus", integer),
+ ("tsc_mode", integer),
+ ("max_memkb", uint32),
+ ("target_memkb", uint32),
+ ("video_memkb", uint32),
+ ("shadow_memkb", uint32),
+ ("disable_migrate", bool),
+ ("kernel", libxl_file_reference),
+ ("hvm", integer),
+ ("u", Union(None,
+ [("hvm", Struct(None,
+ [("pae", bool),
+ ("apic", bool),
+ ("acpi", bool),
+ ("nx", bool),
+ ("viridian", bool),
+ ("timeoffset", string),
+ ("hpet", bool),
+ ("vpt_align", bool),
+ ("timer_mode", integer),
+ ])),
+ ("pv", Struct(None,
+ [("slack_memkb", uint32),
+ ("bootloader", string, True),
+ ("bootloader_args", string, True),
+ ("cmdline", string),
+ ("ramdisk", libxl_file_reference),
+ ("features", string, True),
+ ])),
+ ])),
+ ],
+ comment +"""Instances of libxl_file_reference contained in
this struct which
+have been mapped (with libxl_file_reference_map) will be unmapped
+by libxl_domain_build/restore. If either of these are never called
+then the user is responsible for calling
+libxl_file_reference_unmap.""")
+
+libxl_domain_build_state = Struct("domain_build_state",[
+ ("store_port", uint32),
+ ("store_mfn", unsigned_long),
+ ("console_port", uint32),
+ ("console_mfn", unsigned_long),
+ ])
+
+libxl_device_model_info = Struct("device_model_info",[
+ ("domid", integer),
+ ("uuid", libxl_uuid, False, "this is use only
with stubdom, and must be different from the domain uuid"),
+ ("dom_name", string),
+ ("device_model", string),
+ ("saved_state", string),
+ ("type", libxl_qemu_machine_type),
+ ("videoram", integer, False, "size of the
videoram in MB"),
+ ("stdvga", bool, False, "stdvga enabled or
disabled"),
+ ("vnc", bool, False, "vnc enabled or
disabled"),
+ ("vnclisten", string, False, "address:port that
should be listened on for the VNC server if vnc is set"),
+ ("vncpasswd", string, False, "the VNC
password"),
+ ("vncdisplay", integer, False, "set VNC display
number"),
+ ("vncunused", bool, False, "try to find an
unused port for the VNC server"),
+ ("keymap", string, False, "set keyboard
layout, default is en-us keyboard"),
+ ("sdl", bool, False, "sdl enabled or
disabled"),
+ ("opengl", bool, False, "opengl enabled or
disabled (if enabled requires sdl enabled)"),
+ ("nographic", bool, False, "no graphics, use
serial port"),
+ ("serial", string, False, "serial port
re-direct to pty deivce"),
+ ("boot", string, False, "boot order, for
example dca"),
+ ("usb", bool, False, "usb support
enabled or disabled"),
+ ("usbdevice", string, False, "enable usb mouse:
tablet for absolute mouse, mouse for PS/2 protocol relative mouse"),
+ ("soundhw", string, False, "enable sound
hardware"),
+ ("apic", bool, False, "apic enabled or
disabled"),
+ ("vcpus", integer, False, "max number of
vcpus"),
+ ("vcpu_avail", integer, False, "vcpus actually
available"),
+ ("xen_platform_pci", integer, False, "enable/disable the
xen platform pci device"),
+ ("extra", string_list, False, "extra parameters
pass directly to qemu, NULL terminated"),
+ ],
+ comment+"""Device Model information.
+
+Network is missing""")
+
+libxl_device_vfb = Struct("device_vfb", [
+ ("backend_domid", uint32),
+ ("domid", uint32),
+ ("devid", integer),
+ ("vnc", bool, False, "vnc enabled or
disabled"),
+ ("vnclisten", string, False, "address:port that should
be listened on for the VNC server if vnc is set"),
+ ("vncpasswd", string, False, "the VNC password"),
+ ("vncdisplay", integer, False, "set VNC display
number"),
+ ("vncunused", bool, False, "try to find an unused
port for the VNC server"),
+ ("keymap", string, False, "set keyboard layout,
default is en-us keyboard"),
+ ("sdl", bool, False, "sdl enabled or
disabled"),
+ ("opengl", bool, False, "opengl enabled or
disabled (if enabled requires sdl enabled)"),
+ ("display", string),
+ ("xauthority", string),
+ ])
+
+libxl_device_vkb = Struct("device_vkb", [
+ ("backend_domid", uint32),
+ ("domid", domid),
+ ("devid", integer),
+ ])
+
+libxl_device_console = Struct("device_console", [
+ ("backend_domid", uint32),
+ ("domid", domid),
+ ("devid", integer),
+ ("constype", libxl_console_constype),
+ ("build_state", Reference(libxl_domain_build_state)),
+ ])
+
+libxl_device_disk = Struct("device_disk", [
+ ("backend_domid", uint32),
+ ("domid", domid),
+ ("physpath", string),
+ ("phystype", libxl_disk_phystype),
+ ("virtpath", string),
+ ("unpluggable", integer),
+ ("readwrite", integer),
+ ("is_cdrom", integer),
+ ])
+
+libxl_device_nic = Struct("device_nic", [
+ ("backend_domid", uint32),
+ ("domid", domid),
+ ("devid", integer),
+ ("mtu", integer),
+ ("model", string),
+ ("mac", libxl_mac),
+ ("ip", inaddr_ip),
+ ("bridge", string),
+ ("ifname", string),
+ ("script", string),
+ ("nictype", libxl_nic_type),
+ ])
+
+libxl_device_net2 = Struct("device_net2", [
+ ("devid", integer),
+ ("front_mac", libxl_mac),
+ ("back_mac", libxl_mac),
+ ("backend_domid", uint32),
+ ("domid", domid),
+ ("trusted", BitField(uint32, 1)),
+ ("back_trusted", BitField(uint32, 1)),
+ ("filter_mac", BitField(uint32, 1)),
+ ("front_filter_mac", BitField(uint32, 1)),
+ ("pdev", uint32),
+ ("max_bypasses", uint32),
+ ("bridge", string),
+ ])
+
+libxl_device_pci = Struct("device_pci", [
+ (None, Union(None, [("value", unsigned_integer),
+ (None, Struct(None,[("reserved1",
BitField(unsigned_integer, 2)),
+ ("reg",
BitField(unsigned_integer, 6)),
+ ("func",
BitField(unsigned_integer, 3)),
+ ("dev",
BitField(unsigned_integer, 5)),
+ ("bus",
BitField(unsigned_integer, 8)),
+ ("reserved2",
BitField(unsigned_integer, 7)),
+ ("enable",
BitField(unsigned_integer, 1)),
+ ])),
+ ])
+ ),
+ ("domain", unsigned_integer),
+ ("vdevfn", unsigned_integer),
+ ("msitranslate", bool),
+ ("power_mgmt", bool),
+ ])
+
+Types = [
+ libxl_dominfo,
+ libxl_poolinfo,
+ libxl_vminfo,
+ libxl_version_info,
+ libxl_domain_create_info,
+ libxl_file_reference,
+ libxl_domain_build_info,
+ libxl_domain_build_state,
+ libxl_device_model_info,
+ libxl_device_vfb,
+ libxl_device_vkb,
+ libxl_device_console,
+ libxl_device_disk,
+ libxl_device_nic,
+ libxl_device_net2,
+ libxl_device_pci,
+]
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel
# HG changeset patch
# User Ian Campbell <ian.campbell@citrix.com>
# Date 1280829586 -3600
# Node ID 5d51a404379e3e91c08c07c8292abefa1440a655
# Parent c87dd259a8ed069d8786aadf9e1f6e555aa6778e
libxl: add KeyedUnion type
Use this to express the construct where a union is differentiated on a
variable in the containing struct.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
diff -r c87dd259a8ed -r 5d51a404379e tools/libxl/libxltypes.py
--- a/tools/libxl/libxltypes.py Tue Aug 03 10:59:46 2010 +0100
+++ b/tools/libxl/libxltypes.py Tue Aug 03 10:59:46 2010 +0100
@@ -35,12 +35,13 @@ class BitField(Type):
class Field(Type):
"""An element of an Aggregate type"""
- def __init__(self, type, name, const = False, comment = None):
+ def __init__(self, type, name, const = False, comment = None, keyvar_expr =
None):
Type.__init__(self,type.typename)
self.type = type
self.name = name
self.const = const
self.comment = comment
+ self.keyvar_expr = keyvar_expr
class Aggregate(Type):
"""A type containing a collection of other
types"""
@@ -79,6 +80,19 @@ class KeyValueList(Type):
Type.__init__(self, "char **", namespace = None)
+class KeyedUnion(Aggregate):
+ """A union which is keyed of another
variable"""
+ def __init__(self, name, keyvar_name, fields, comment = None):
+ self.keyvar = keyvar_name
+ Aggregate.__init__(self, "union", name, [], comment)
+ for f in fields:
+ # (name, keyvar_expr, type)
+
+ # keyvar_expr must contain exactly one %s which will be replaced
with the keyvar_name
+
+ n, kve, ty = f
+ self.fields.append(Field(ty, n, False, None, kve))
+
class Reference(Type):
"""A reference to another type"""
def __init__(self, ty):
@@ -199,26 +213,26 @@ libxl_domain_build_info = Struct("domain
("disable_migrate", bool),
("kernel", libxl_file_reference),
("hvm", integer),
- ("u", Union(None,
- [("hvm", Struct(None,
- [("pae", bool),
- ("apic", bool),
- ("acpi", bool),
- ("nx", bool),
- ("viridian", bool),
- ("timeoffset", string),
- ("hpet", bool),
- ("vpt_align", bool),
- ("timer_mode", integer),
- ])),
- ("pv", Struct(None,
- [("slack_memkb", uint32),
- ("bootloader", string, True),
- ("bootloader_args", string, True),
- ("cmdline", string),
- ("ramdisk", libxl_file_reference),
- ("features", string, True),
- ])),
+ ("u", KeyedUnion(None, "hvm",
+ [("hvm", "%s", Struct(None,
+ [("pae", bool),
+ ("apic", bool),
+ ("acpi", bool),
+ ("nx", bool),
+ ("viridian", bool),
+ ("timeoffset", string),
+ ("hpet", bool),
+ ("vpt_align", bool),
+ ("timer_mode", integer),
+ ])),
+ ("pv", "!%s", Struct(None,
+ [("slack_memkb", uint32),
+ ("bootloader", string, True),
+ ("bootloader_args", string,
True),
+ ("cmdline", string),
+ ("ramdisk",
libxl_file_reference),
+ ("features", string, True),
+ ])),
])),
],
comment
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel
Ian Campbell
2010-Aug-03 11:00 UTC
[Xen-devel] [PATCH 7 of 8] libxl: generate destructors for each libxl defined type
# HG changeset patch
# User Ian Campbell <ian.campbell@citrix.com>
# Date 1280829586 -3600
# Node ID 6baa8ce2ec5ed5d140a67b87d2514e88464df34e
# Parent 5d51a404379e3e91c08c07c8292abefa1440a655
libxl: generate destructors for each libxl defined type
I chose the name "_destroy" rather than "_free" because the
destructor
functions will free only the members of a type recursively but will
not free the actual type structure itself. The allocation of the type
is typically done by the caller and may not be a single allocation,
e.g. lists/arrays of types or embedded in other strucutures etc.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
diff -r 5d51a404379e -r 6baa8ce2ec5e .hgignore
--- a/.hgignore Tue Aug 03 10:59:46 2010 +0100
+++ b/.hgignore Tue Aug 03 10:59:46 2010 +0100
@@ -182,6 +182,7 @@
^tools/libxen/test/test_bindings$
^tools/libxen/test/test_event_handling$
^tools/libxl/_.*\.h$
+^tools/libxl/_.*\.c$
^tools/libxl/libxlu_cfg_y\.output$
^tools/libxl/xl$
^tools/libaio/src/.*\.ol$
diff -r 5d51a404379e -r 6baa8ce2ec5e tools/libxl/Makefile
--- a/tools/libxl/Makefile Tue Aug 03 10:59:46 2010 +0100
+++ b/tools/libxl/Makefile Tue Aug 03 10:59:46 2010 +0100
@@ -19,6 +19,7 @@ LIBS = $(LDFLAGS_libxenctrl) $(LDFLAGS_l
LIBXL_OBJS-y = osdeps.o libxl_paths.o libxl_bootloader.o
LIBXL_OBJS = flexarray.o libxl.o libxl_pci.o libxl_dom.o libxl_exec.o
libxl_xshelp.o libxl_device.o libxl_internal.o xenguest.o libxl_utils.o
$(LIBXL_OBJS-y)
+LIBXL_OBJS += _libxl_types.c
AUTOINCS= libxlu_cfg_y.h libxlu_cfg_l.h
AUTOSRCS= libxlu_cfg_y.c libxlu_cfg_l.c
@@ -54,9 +55,10 @@ libxl_paths.c: _libxl_paths.h
libxl.h: _libxl_types.h
-_libxl_types.h: gentypes.py libxltypes.py
- python gentypes.py __libxl_types.h
+_libxl_types.h _libxl_types.c: gentypes.py libxltypes.py
+ python gentypes.py __libxl_types.h __libxl_types.c
mv __libxl_types.h _libxl_types.h
+ mv __libxl_types.c _libxl_types.c
libxenlight.so: libxenlight.so.$(MAJOR)
ln -sf $< $@
@@ -115,6 +117,7 @@ install: all
.PHONY: clean
clean:
$(RM) -f _*.h *.o *.so* *.a $(CLIENTS) $(DEPS)
+ $(RM) -f _*.c
# $(RM) -f $(AUTOSRCS) $(AUTOINCS)
distclean: clean
diff -r 5d51a404379e -r 6baa8ce2ec5e tools/libxl/gentypes.py
--- a/tools/libxl/gentypes.py Tue Aug 03 10:59:46 2010 +0100
+++ b/tools/libxl/gentypes.py Tue Aug 03 10:59:46 2010 +0100
@@ -58,13 +58,46 @@ def libxl_C_type_define(ty, indent = "")
raise NotImplementedError("%s" % type(ty))
return s.replace("\n", "\n%s" % indent)
+def libxl_C_type_destroy(ty, v, indent = " ", parent =
""):
+ s = ""
+ s += "// type: \"%s\"\n" % ty.typename
+ if isinstance(ty, libxltypes.KeyedUnion):
+ s += "// Keyed union with key %s%s\n" % (parent,
ty.keyvar_name)
+ for f in ty.fields:
+ keyvar_expr = f.keyvar_expr % (parent + ty.keyvar_name)
+ s += "if (" + keyvar_expr + ") {\n"
+ s += " // Free %s\n" % (v + f.name)
+ s += libxl_C_type_destroy(f.type, v + f.name + ".",
indent + " ", v)
+ s += "\n"
+ s += "}\n"
+ elif isinstance(ty, libxltypes.Aggregate):
+ for f in [f for f in ty.fields if f.type.has_destructor and not
f.const]:
+ if f.type.passbyref:
+ makeref = "&"
+ deref = "."
+ else:
+ makeref = ""
+ deref = "->"
+
+ if isinstance(f.type, libxltypes.Aggregate) and f.type.typename is
None:
+ s += libxl_C_type_destroy(f.type, v + f.name + ".",
"", v)
+ s += "\n"
+ else:
+ s += "%s(%s%s%s);\n" % (f.type.destructor, makeref,
v, f.name)
+ else:
+ raise NotImplementedError("%s" % type(ty))
+ s = s.rstrip("\n")
+ if s != "":
+ s = indent + s
+ return s.replace("\n", "\n%s" % indent)
+
if __name__ == ''__main__'':
- if len(sys.argv) < 2:
- print >>sys.stderr, "Usage: gentypes.py <header>"
+ if len(sys.argv) < 3:
+ print >>sys.stderr, "Usage: gentypes.py <header>
<implementation>"
sys.exit(1)
header = sys.argv[1]
- print "outputting libxl types to %s" % header
+ print "outputting libxl type definitions to %s" % header
f = open(header, "w")
@@ -79,8 +112,45 @@ if __name__ == ''__main__'':
""" % " ".join(sys.argv))
- for t in libxltypes.Types:
- f.write(libxl_C_type_define(t) + ";\n")
+ for ty in libxltypes.Types:
+ f.write(libxl_C_type_define(ty) + ";\n")
+ if ty.has_destructor:
+ f.write("void %s(%s *p);\n" % (ty.destructor,
ty.typename))
f.write("\n")
f.write("""#endif /* __LIBXL_TYPES_H */\n""")
+ f.close()
+
+ impl = sys.argv[2]
+ print "outputting libxl type implementations to %s" % impl
+
+ f = open(impl, "w")
+ f.write("""
+/* DO NOT EDIT.
+ *
+ * This file is autogenerated by
+ * "%s"
+ */
+
+#include "libxl_osdeps.h"
+
+#include <stdint.h>
+#include <stdlib.h>
+
+#include "libxl.h"
+
+static void __string_string_free(char **p)
+{
+
+}
+
+""" % " ".join(sys.argv))
+
+ for ty in [ty for ty in libxltypes.Types if ty.generated_destructor]:
+ f.write("void %s(%s *p)\n" % (ty.destructor, ty.typename))
+ f.write("{\n")
+ f.write(libxl_C_type_destroy(ty, "p->"))
+ f.write("\n")
+ f.write("}\n")
+ f.write("\n")
+ f.close()
diff -r 5d51a404379e -r 6baa8ce2ec5e tools/libxl/libxltypes.py
--- a/tools/libxl/libxltypes.py Tue Aug 03 10:59:46 2010 +0100
+++ b/tools/libxl/libxltypes.py Tue Aug 03 10:59:46 2010 +0100
@@ -2,6 +2,11 @@ class Type(object):
def __init__(self, typename, **kwargs):
self.comment = None
self.namespace = "libxl_"
+
+ self.has_destructor = True
+ self.generated_destructor = True
+
+ self.passbyref = False # passbyvalue
if kwargs.has_key(''libxl_type''):
self.comment = kwargs[''comment'']
@@ -9,6 +14,21 @@ class Type(object):
if kwargs.has_key(''namespace''):
self.namespace = kwargs[''namespace'']
+ if kwargs.has_key(''has_destructor''):
+ self.has_destructor = kwargs[''has_destructor'']
+
+ if kwargs.has_key(''passbyref''):
+ self.passbyref = kwargs[''passbyref'']
+
+ if not self.has_destructor:
+ self.generated_destructor = False
+
+ if kwargs.has_key(''generated_destructor''):
+ self.generated_destructor =
kwargs[''generated_destructor'']
+
+ if self.generated_destructor and not self.has_destructor:
+ raise Exception("Cannot generate no destructor!")
+
if typename is None: # Anonymous type
self.typename = None
elif self.namespace is None: # e.g. system provided types
@@ -16,22 +36,33 @@ class Type(object):
else:
self.typename = self.namespace + typename
+ if kwargs.has_key(''destructor''):
+ self.destructor = kwargs[''destructor'']
+ elif self.typename is not None and self.has_destructor:
+ self.destructor = self.typename + "_destroy"
+ else:
+ self.destructor = None
+
class Builtin(Type):
"""Builtin type"""
- def __init__(self, typename, namespace = "libxl_"):
- Type.__init__(self, typename, namespace = namespace)
+ def __init__(self, typename, **kwargs):
+ if not kwargs.has_key("has_destructor"):
+ kwargs[''has_destructor''] = False
+ if not kwargs.has_key("generate_destructor"):
+ kwargs[''generate_destructor''] = False
+
+ Type.__init__(self, typename, **kwargs)
class UInt(Type):
def __init__(self, w):
typename = "uint%d_t" % w
- Type.__init__(self, typename, namespace = None)
+ Type.__init__(self, typename, namespace = None, has_destructor = False)
self.width = w
class BitField(Type):
def __init__(self, ty, w):
- Type.__init__(self, ty.typename, namespace = ty.namespace)
+ Type.__init__(self, ty.typename, namespace = ty.namespace,
has_destructor = False)
self.width = w
-
class Field(Type):
"""An element of an Aggregate type"""
@@ -45,11 +76,11 @@ class Field(Type):
class Aggregate(Type):
"""A type containing a collection of other
types"""
- def __init__(self, kind, name, fields, comment = None):
- Type.__init__(self, name)
+ def __init__(self, kind, name, fields, comment = None, destructor = True):
+ Type.__init__(self, name, has_destructor = destructor,
generate_destructor = destructor, passbyref = True)
self.kind = kind
self.name = name
- self.comment = comment
+ self.comment = comment
self.fields = []
for f in fields:
# (name, type[, const=False[, comment=None]])
@@ -66,11 +97,11 @@ class Aggregate(Type):
class Struct(Aggregate):
def __init__(self, name, fields, comment = None):
- Aggregate.__init__(self, "struct", name, fields, comment)
+ Aggregate.__init__(self, "struct", name, fields, comment,
True)
class Union(Aggregate):
def __init__(self, name, fields, comment = None):
- Aggregate.__init__(self, "union", name, fields, comment)
+ Aggregate.__init__(self, "union", name, fields, comment,
False)
class KeyValueList(Type):
"""A map type"""
@@ -78,12 +109,12 @@ class KeyValueList(Type):
if ktype != string and vtype != string:
raise NotImplementedError("Only KeyValueList string ->
string is supported")
- Type.__init__(self, "char **", namespace = None)
+ Type.__init__(self, "char **", namespace = None, destructor =
"__string_string_free")
class KeyedUnion(Aggregate):
"""A union which is keyed of another
variable"""
def __init__(self, name, keyvar_name, fields, comment = None):
- self.keyvar = keyvar_name
+ self.keyvar_name = keyvar_name
Aggregate.__init__(self, "union", name, [], comment)
for f in fields:
# (name, keyvar_expr, type)
@@ -97,7 +128,7 @@ class Reference(Type):
"""A reference to another type"""
def __init__(self, ty):
# Ugh
- Type.__init__(self, ty.name + " *")
+ Type.__init__(self, ty.name + " *", destructor =
ty.destructor, generated_destructor = False, passbyref = False)
#
# Standard Types
@@ -119,7 +150,7 @@ uint64 = UInt(64)
domid = UInt(32)
-string = Builtin("char *", namespace = None)
+string = Builtin("char *", namespace = None, has_destructor = True,
destructor = "free")
string_list = Builtin("char **", namespace = None)
inaddr_ip = Builtin("struct in_addr", namespace = None)
@@ -159,7 +190,9 @@ SHUTDOWN_* constant."""),
("vcpu_online", uint32),
])
-libxl_poolinfo = Struct("poolinfo", [("poolid", uint32)])
+libxl_poolinfo = Struct("poolinfo", [
+ ("poolid", uint32)
+ ])
libxl_vminfo = Struct("vminfo", [
("uuid", libxl_uuid),
_______________________________________________
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Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel
Ian Campbell
2010-Aug-03 11:00 UTC
[Xen-devel] [PATCH 8 of 8] xl: free the libxl types contained in struct domain_config
# HG changeset patch
# User Ian Campbell <ian.campbell@citrix.com>
# Date 1280829842 -3600
# Node ID e977c80592ca15c3bb42edf0a4fcdeb3794543f2
# Parent 6baa8ce2ec5ed5d140a67b87d2514e88464df34e
xl: free the libxl types contained in struct domain_config
Resolves the following leaks found using "valgrind xl create -n ..."
(plus presumably others which didn''t trigger because I have no devices
of that type)
==21241== 5 bytes in 1 blocks are definitely lost in loss record 1 of 6
==21241== at 0x4022F0A: malloc (vg_replace_malloc.c:236)
==21241== by 0x411B22F: strdup (in /lib/i686/cmov/libc-2.7.so)
==21241== by 0x804E56B: parse_config_data (xl_cmdimpl.c:760)
==21241== by 0x8056B04: create_domain (xl_cmdimpl.c:1357)
==21241== by 0x8057ECE: main_create (xl_cmdimpl.c:3154)
==21241== by 0x804B2FB: main (xl.c:76)
==21241===21241== 6 bytes in 1 blocks are definitely lost in loss record 2 of 6
==21241== at 0x4022F0A: malloc (vg_replace_malloc.c:236)
==21241== by 0x411B22F: strdup (in /lib/i686/cmov/libc-2.7.so)
==21241== by 0x804DAAA: parse_config_data (xl_cmdimpl.c:586)
==21241== by 0x8056B04: create_domain (xl_cmdimpl.c:1357)
==21241== by 0x8057ECE: main_create (xl_cmdimpl.c:3154)
==21241== by 0x804B2FB: main (xl.c:76)
==21241===21241== 24 bytes in 1 blocks are definitely lost in loss record 3 of 6
==21241== at 0x4022F0A: malloc (vg_replace_malloc.c:236)
==21241== by 0x411B22F: strdup (in /lib/i686/cmov/libc-2.7.so)
==21241== by 0x804E51F: parse_config_data (xl_cmdimpl.c:754)
==21241== by 0x8056B04: create_domain (xl_cmdimpl.c:1357)
==21241== by 0x8057ECE: main_create (xl_cmdimpl.c:3154)
==21241== by 0x804B2FB: main (xl.c:76)
==21241===21241== 27 bytes in 1 blocks are definitely lost in loss record 4 of 6
==21241== at 0x4022F0A: malloc (vg_replace_malloc.c:236)
==21241== by 0x411B22F: strdup (in /lib/i686/cmov/libc-2.7.so)
==21241== by 0x804DF4A: parse_config_data (xl_cmdimpl.c:664)
==21241== by 0x8056B04: create_domain (xl_cmdimpl.c:1357)
==21241== by 0x8057ECE: main_create (xl_cmdimpl.c:3154)
==21241== by 0x804B2FB: main (xl.c:76)
==21241===21241== 28 bytes in 1 blocks are definitely lost in loss record 5 of 6
==21241== at 0x4022F0A: malloc (vg_replace_malloc.c:236)
==21241== by 0x410C1A7: vasprintf (in /lib/i686/cmov/libc-2.7.so)
==21241== by 0x40EE59A: asprintf (in /lib/i686/cmov/libc-2.7.so)
==21241== by 0x804CA8B: init_nic_info (xl_cmdimpl.c:322)
==21241== by 0x804E6FF: parse_config_data (xl_cmdimpl.c:791)
==21241== by 0x8056B04: create_domain (xl_cmdimpl.c:1357)
==21241== by 0x8057ECE: main_create (xl_cmdimpl.c:3154)
==21241== by 0x804B2FB: main (xl.c:76)
==21241===21241== 44 bytes in 1 blocks are definitely lost in loss record 6 of 6
==21241== at 0x4022F0A: malloc (vg_replace_malloc.c:236)
==21241== by 0x411B22F: strdup (in /lib/i686/cmov/libc-2.7.so)
==21241== by 0x804E168: parse_config_data (xl_cmdimpl.c:694)
==21241== by 0x8056B04: create_domain (xl_cmdimpl.c:1357)
==21241== by 0x8057ECE: main_create (xl_cmdimpl.c:3154)
==21241== by 0x804B2FB: main (xl.c:76)
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
diff -r 6baa8ce2ec5e -r e977c80592ca tools/libxl/libxl_utils.c
--- a/tools/libxl/libxl_utils.c Tue Aug 03 10:59:46 2010 +0100
+++ b/tools/libxl/libxl_utils.c Tue Aug 03 11:04:02 2010 +0100
@@ -81,7 +81,7 @@ int libxl_name_to_domid(libxl_ctx *ctx,
return ret;
}
-char *libxl_poolid_to_name(libxl_ctx *ctx, uint32_t poolid)
+const char *libxl_poolid_to_name(libxl_ctx *ctx, uint32_t poolid)
{
unsigned int len;
char path[strlen("/local/pool") + 12];
@@ -99,7 +99,7 @@ int libxl_name_to_poolid(libxl_ctx *ctx,
uint32_t *poolid)
{
int i, nb_pools;
- char *poolname;
+ const char *poolname;
libxl_poolinfo *poolinfo;
poolinfo = libxl_list_pool(ctx, &nb_pools);
diff -r 6baa8ce2ec5e -r e977c80592ca tools/libxl/libxl_utils.h
--- a/tools/libxl/libxl_utils.h Tue Aug 03 10:59:46 2010 +0100
+++ b/tools/libxl/libxl_utils.h Tue Aug 03 11:04:02 2010 +0100
@@ -22,7 +22,7 @@ int libxl_name_to_domid(libxl_ctx *ctx,
int libxl_name_to_domid(libxl_ctx *ctx, const char *name, uint32_t *domid);
char *libxl_domid_to_name(libxl_ctx *ctx, uint32_t domid);
int libxl_name_to_poolid(libxl_ctx *ctx, const char *name, uint32_t *poolid);
-char *libxl_poolid_to_name(libxl_ctx *ctx, uint32_t poolid);
+const char *libxl_poolid_to_name(libxl_ctx *ctx, uint32_t poolid);
int libxl_get_stubdom_id(libxl_ctx *ctx, int guest_domid);
int libxl_is_stubdom(libxl_ctx *ctx, uint32_t domid, uint32_t *target_domid);
int libxl_create_logfile(libxl_ctx *ctx, char *name, char **full_name);
diff -r 6baa8ce2ec5e -r e977c80592ca tools/libxl/libxltypes.py
--- a/tools/libxl/libxltypes.py Tue Aug 03 10:59:46 2010 +0100
+++ b/tools/libxl/libxltypes.py Tue Aug 03 11:04:02 2010 +0100
@@ -232,7 +232,7 @@ libxl_domain_create_info = Struct("domai
("xsdata", KeyValueList(string, string)),
("platformdata", KeyValueList(string, string)),
("poolid", uint32),
- ("poolname", string),
+ ("poolname", string, True),
])
libxl_domain_build_info = Struct("domain_build_info",[
diff -r 6baa8ce2ec5e -r e977c80592ca tools/libxl/xl_cmdimpl.c
--- a/tools/libxl/xl_cmdimpl.c Tue Aug 03 10:59:46 2010 +0100
+++ b/tools/libxl/xl_cmdimpl.c Tue Aug 03 11:04:02 2010 +0100
@@ -145,12 +145,34 @@ struct domain_config {
static void free_domain_config(struct domain_config *d_config)
{
+ int i;
+
+ for (i=0; i<d_config->num_disks; i++)
+ libxl_device_disk_destroy(&d_config->disks[i]);
free(d_config->disks);
+
+ for (i=0; i<d_config->num_vifs; i++)
+ libxl_device_nic_destroy(&d_config->vifs[i]);
free(d_config->vifs);
+
+ for (i=0; i<d_config->num_vif2s; i++)
+ libxl_device_net2_destroy(&d_config->vif2s[i]);
free(d_config->vif2s);
+
+ for (i=0; i<d_config->num_pcidevs; i++)
+ libxl_device_pci_destroy(&d_config->pcidevs[i]);
free(d_config->pcidevs);
+
+ for (i=0; i<d_config->num_vfbs; i++)
+ libxl_device_vfb_destroy(&d_config->vfbs[i]);
free(d_config->vfbs);
+
+ for (i=0; i<d_config->num_vkbs; i++)
+ libxl_device_vkb_destroy(&d_config->vkbs[i]);
free(d_config->vkbs);
+
+ libxl_domain_create_info_destroy(&d_config->c_info);
+ libxl_domain_build_info_destroy(&d_config->b_info);
}
/* Optional data, in order:
@@ -310,7 +332,7 @@ static void init_nic_info(libxl_device_n
nic_info->domid = 0;
nic_info->devid = devnum;
nic_info->mtu = 1492;
- nic_info->model = "e1000";
+ nic_info->model = strdup("e1000");
nic_info->mac[0] = 0x00;
nic_info->mac[1] = 0x16;
nic_info->mac[2] = 0x3e;
@@ -318,7 +340,7 @@ static void init_nic_info(libxl_device_n
nic_info->mac[4] = 1 + (int) (0xff * (rand() / (RAND_MAX + 1.0)));
nic_info->mac[5] = 1 + (int) (0xff * (rand() / (RAND_MAX + 1.0)));
nic_info->ifname = NULL;
- nic_info->bridge = "xenbr0";
+ nic_info->bridge = strdup("xenbr0");
CHK_ERRNO( asprintf(&nic_info->script, "%s/vif-bridge",
libxl_xen_script_dir_path()) );
nic_info->nictype = NICTYPE_IOEMU;
@@ -800,6 +822,7 @@ static void parse_config_data(const char
break;
*p2 = ''\0'';
if (!strcmp(p, "model")) {
+ free(nic->model);
nic->model = strdup(p2 + 1);
} else if (!strcmp(p, "mac")) {
char *p3 = p2 + 1;
@@ -821,6 +844,7 @@ static void parse_config_data(const char
*(p3 + 2) = ''\0'';
nic->mac[5] = strtol(p3, NULL, 16);
} else if (!strcmp(p, "bridge")) {
+ free(nic->bridge);
nic->bridge = strdup(p2 + 1);
} else if (!strcmp(p, "type")) {
if (!strcmp(p2 + 1, "ioemu"))
_______________________________________________
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Gianni Tedesco
2010-Aug-03 12:07 UTC
Re: [Xen-devel] [PATCH 7 of 8] libxl: generate destructors for each libxl defined type
On Tue, 2010-08-03 at 12:00 +0100, Ian Campbell wrote:> LIBXL_OBJS-y = osdeps.o libxl_paths.o libxl_bootloader.o > LIBXL_OBJS = flexarray.o libxl.o libxl_pci.o libxl_dom.o libxl_exec.o libxl_xshelp.o libxl_device.o libxl_internal.o xenguest.o libxl_utils.o $(LIBXL_OBJS-y) > +LIBXL_OBJS += _libxl_types.cuhm... _libxl_types.o ??> AUTOINCS= libxlu_cfg_y.h libxlu_cfg_l.h > AUTOSRCS= libxlu_cfg_y.c libxlu_cfg_l.c > @@ -54,9 +55,10 @@ libxl_paths.c: _libxl_paths.h > > libxl.h: _libxl_types.h > > -_libxl_types.h: gentypes.py libxltypes.py > - python gentypes.py __libxl_types.h > +_libxl_types.h _libxl_types.c: gentypes.py libxltypes.py > + python gentypes.py __libxl_types.h __libxl_types.c > mv __libxl_types.h _libxl_types.h > + mv __libxl_types.c _libxl_types.cSomething is still wrong in the dep tree that breaks a clean build. I think part of the problem is that the build system cannot find what depends on _libxl_types.h until the compile-time-generate dep files are created. On the other hand, it can''t create the dep files if the _libxl_types.h is not there. Solution is to manually tweak the dep tree, meh: diff -r 87613ac31ddc tools/libxl/Makefile --- a/tools/libxl/Makefile Tue Aug 03 12:50:05 2010 +0100 +++ b/tools/libxl/Makefile Tue Aug 03 13:09:35 2010 +0100 @@ -19,7 +19,7 @@ LIBS = $(LDFLAGS_libxenctrl) $(LDFLAGS_l LIBXL_OBJS-y = osdeps.o libxl_paths.o libxl_bootloader.o LIBXL_OBJS = flexarray.o libxl.o libxl_pci.o libxl_dom.o libxl_exec.o libxl_xshelp.o libxl_device.o libxl_internal.o xenguest.o libxl_utils.o $(LIBXL_OBJS-y) -LIBXL_OBJS += _libxl_types.c +LIBXL_OBJS += _libxl_types.o AUTOINCS= libxlu_cfg_y.h libxlu_cfg_l.h AUTOSRCS= libxlu_cfg_y.c libxlu_cfg_l.c @@ -84,18 +84,20 @@ libxlutil.so.$(XLUMAJOR).$(XLUMINOR): $( libxlutil.a: $(LIBXLU_OBJS) $(AR) rcs libxlutil.a $^ -xl.o: xl.c +xl.o: xl.c _libxl_types.h $(CC) $(CFLAGS) -c xl.c -xl_cmdimpl.o: xl_cmdimpl.c +xl_cmdimpl.o: xl_cmdimpl.c _libxl_types.h $(CC) $(CFLAGS) -c xl_cmdimpl.c -xl_cmdtable.o: xl_cmdtable.c +xl_cmdtable.o: xl_cmdtable.c _libxl_types.h $(CC) $(CFLAGS) -c xl_cmdtable.c $(CLIENTS): xl.o xl_cmdimpl.o xl_cmdtable.o libxlutil.so libxenlight.so $(CC) $(LDFLAGS) -o $@ $^ $(LIBS) +%.so: _libxl_types.h + .PHONY: install install: all $(INSTALL_DIR) $(DESTDIR)$(SBINDIR) _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Gianni Tedesco
2010-Aug-03 12:13 UTC
Re: [Xen-devel] [PATCH 5 of 8] libxl: autogenerate _libxl_types.h
On Tue, 2010-08-03 at 12:00 +0100, Ian Campbell wrote:> +Types = [ > + libxl_dominfo, > + libxl_poolinfo, > + libxl_vminfo, > + libxl_version_info, > + libxl_domain_create_info, > + libxl_file_reference, > + libxl_domain_build_info, > + libxl_domain_build_state, > + libxl_device_model_info, > + libxl_device_vfb, > + libxl_device_vkb, > + libxl_device_console, > + libxl_device_disk, > + libxl_device_nic, > + libxl_device_net2, > + libxl_device_pci, > +]I like the idea of the patch, I think the libxl bits should be in a separate python module though or perhaps the gentypes.py. Also I think an integer ptr attribute on the base class would be a good idea if only to get rid of nasty whitespace issue :) -- I haven''t groked the code too closely but it may also be able to fold such a thing in to has_destructor attribute? anyway... _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Ian Campbell
2010-Aug-03 12:24 UTC
Re: [Xen-devel] [PATCH 7 of 8] libxl: generate destructors for each libxl defined type
Thanks for looking over this. On Tue, 2010-08-03 at 13:07 +0100, Gianni Tedesco (3P) wrote:> On Tue, 2010-08-03 at 12:00 +0100, Ian Campbell wrote: > > LIBXL_OBJS-y = osdeps.o libxl_paths.o libxl_bootloader.o > > LIBXL_OBJS = flexarray.o libxl.o libxl_pci.o libxl_dom.o libxl_exec.o libxl_xshelp.o libxl_device.o libxl_internal.o xenguest.o libxl_utils.o $(LIBXL_OBJS-y) > > +LIBXL_OBJS += _libxl_types.c > > uhm... _libxl_types.o ??Oops, yes indeed.> > AUTOINCS= libxlu_cfg_y.h libxlu_cfg_l.h > > AUTOSRCS= libxlu_cfg_y.c libxlu_cfg_l.c > > @@ -54,9 +55,10 @@ libxl_paths.c: _libxl_paths.h > > > > libxl.h: _libxl_types.h > > > > -_libxl_types.h: gentypes.py libxltypes.py > > - python gentypes.py __libxl_types.h > > +_libxl_types.h _libxl_types.c: gentypes.py libxltypes.py > > + python gentypes.py __libxl_types.h __libxl_types.c > > mv __libxl_types.h _libxl_types.h > > + mv __libxl_types.c _libxl_types.c > > Something is still wrong in the dep tree that breaks a clean build. I > think part of the problem is that the build system cannot find what > depends on _libxl_types.h until the compile-time-generate dep files are > created. On the other hand, it can''t create the dep files if the > _libxl_types.h is not there. > > Solution is to manually tweak the dep tree, meh:I thought that the next patch in the series (which adds _libxl_types.c) also worked around the same problem so I didn''t worry too much but I seem to have been mistaken. I wonder if this can be wildcarded at all, something like %.o: _libl_types.h (except not that because it doesn''t actually work, AFAICT) Ian.> > diff -r 87613ac31ddc tools/libxl/Makefile > --- a/tools/libxl/Makefile Tue Aug 03 12:50:05 2010 +0100 > +++ b/tools/libxl/Makefile Tue Aug 03 13:09:35 2010 +0100 > @@ -19,7 +19,7 @@ LIBS = $(LDFLAGS_libxenctrl) $(LDFLAGS_l > > LIBXL_OBJS-y = osdeps.o libxl_paths.o libxl_bootloader.o > LIBXL_OBJS = flexarray.o libxl.o libxl_pci.o libxl_dom.o libxl_exec.o libxl_xshelp.o libxl_device.o libxl_internal.o xenguest.o libxl_utils.o $(LIBXL_OBJS-y) > -LIBXL_OBJS += _libxl_types.c > +LIBXL_OBJS += _libxl_types.o > > AUTOINCS= libxlu_cfg_y.h libxlu_cfg_l.h > AUTOSRCS= libxlu_cfg_y.c libxlu_cfg_l.c > @@ -84,18 +84,20 @@ libxlutil.so.$(XLUMAJOR).$(XLUMINOR): $( > libxlutil.a: $(LIBXLU_OBJS) > $(AR) rcs libxlutil.a $^ > > -xl.o: xl.c > +xl.o: xl.c _libxl_types.h > $(CC) $(CFLAGS) -c xl.c > > -xl_cmdimpl.o: xl_cmdimpl.c > +xl_cmdimpl.o: xl_cmdimpl.c _libxl_types.h > $(CC) $(CFLAGS) -c xl_cmdimpl.c > > -xl_cmdtable.o: xl_cmdtable.c > +xl_cmdtable.o: xl_cmdtable.c _libxl_types.h > $(CC) $(CFLAGS) -c xl_cmdtable.c > > $(CLIENTS): xl.o xl_cmdimpl.o xl_cmdtable.o libxlutil.so libxenlight.so > $(CC) $(LDFLAGS) -o $@ $^ $(LIBS) > > +%.so: _libxl_types.h > + > .PHONY: install > install: all > $(INSTALL_DIR) $(DESTDIR)$(SBINDIR) > >_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Ian Campbell
2010-Aug-03 12:29 UTC
Re: [Xen-devel] [PATCH 5 of 8] libxl: autogenerate _libxl_types.h
On Tue, 2010-08-03 at 13:13 +0100, Gianni Tedesco (3P) wrote:> On Tue, 2010-08-03 at 12:00 +0100, Ian Campbell wrote: > > +Types = [ > > + libxl_dominfo, > > + libxl_poolinfo, > > + libxl_vminfo, > > + libxl_version_info, > > + libxl_domain_create_info, > > + libxl_file_reference, > > + libxl_domain_build_info, > > + libxl_domain_build_state, > > + libxl_device_model_info, > > + libxl_device_vfb, > > + libxl_device_vkb, > > + libxl_device_console, > > + libxl_device_disk, > > + libxl_device_nic, > > + libxl_device_net2, > > + libxl_device_pci, > > +] > > I like the idea of the patch, I think the libxl bits should be in a > separate python module though or perhaps the gentypes.py.I agree, and said as much in my intro mail ;-)> Also I think an integer ptr attribute on the base class would be a good > idea if only to get rid of nasty whitespace issue :) -- I haven''t groked > the code too closely but it may also be able to fold such a thing in to > has_destructor attribute? anyway...Ideally the autogenerator wouldn''t concern itself with indentation/whitespace/etc at all and would simply pipe its output through a suitably formed invocation of lindent. I just hand coded it for now to match something usable if not ideal (and to be comparable to the before state). Ian. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Gianni Tedesco
2010-Aug-03 12:34 UTC
Re: [Xen-devel] [PATCH 7 of 8] libxl: generate destructors for each libxl defined type
On Tue, 2010-08-03 at 13:24 +0100, Ian Campbell wrote:> Thanks for looking over this. > > On Tue, 2010-08-03 at 13:07 +0100, Gianni Tedesco (3P) wrote: > > On Tue, 2010-08-03 at 12:00 +0100, Ian Campbell wrote: > > > LIBXL_OBJS-y = osdeps.o libxl_paths.o libxl_bootloader.o > > > LIBXL_OBJS = flexarray.o libxl.o libxl_pci.o libxl_dom.o libxl_exec.o libxl_xshelp.o libxl_device.o libxl_internal.o xenguest.o libxl_utils.o $(LIBXL_OBJS-y) > > > +LIBXL_OBJS += _libxl_types.c > > > > uhm... _libxl_types.o ?? > > Oops, yes indeed. > > > > AUTOINCS= libxlu_cfg_y.h libxlu_cfg_l.h > > > AUTOSRCS= libxlu_cfg_y.c libxlu_cfg_l.c > > > @@ -54,9 +55,10 @@ libxl_paths.c: _libxl_paths.h > > > > > > libxl.h: _libxl_types.h > > > > > > -_libxl_types.h: gentypes.py libxltypes.py > > > - python gentypes.py __libxl_types.h > > > +_libxl_types.h _libxl_types.c: gentypes.py libxltypes.py > > > + python gentypes.py __libxl_types.h __libxl_types.c > > > mv __libxl_types.h _libxl_types.h > > > + mv __libxl_types.c _libxl_types.c > > > > Something is still wrong in the dep tree that breaks a clean build. I > > think part of the problem is that the build system cannot find what > > depends on _libxl_types.h until the compile-time-generate dep files are > > created. On the other hand, it can''t create the dep files if the > > _libxl_types.h is not there. > > > > Solution is to manually tweak the dep tree, meh: > > I thought that the next patch in the series (which adds _libxl_types.c) > also worked around the same problem so I didn''t worry too much but I > seem to have been mistaken. > > I wonder if this can be wildcarded at all, something like > %.o: _libl_types.h > (except not that because it doesn''t actually work, AFAICT) > > Ian.Hmm, probably conflicts with higher level Rules.mak thing. Not to mention it may interact badly with $</$^ type of rules. Think my %.so template is a lucky hack tbh. But as long as the dep is added at the top-level (tho not topmost ''all'' target level, due to parallelism) it should be fine. Gianni _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Gianni Tedesco
2010-Aug-03 12:36 UTC
Re: [Xen-devel] [PATCH 5 of 8] libxl: autogenerate _libxl_types.h
On Tue, 2010-08-03 at 13:29 +0100, Ian Campbell wrote:> On Tue, 2010-08-03 at 13:13 +0100, Gianni Tedesco (3P) wrote: > > On Tue, 2010-08-03 at 12:00 +0100, Ian Campbell wrote: > > > +Types = [ > > > + libxl_dominfo, > > > + libxl_poolinfo, > > > + libxl_vminfo, > > > + libxl_version_info, > > > + libxl_domain_create_info, > > > + libxl_file_reference, > > > + libxl_domain_build_info, > > > + libxl_domain_build_state, > > > + libxl_device_model_info, > > > + libxl_device_vfb, > > > + libxl_device_vkb, > > > + libxl_device_console, > > > + libxl_device_disk, > > > + libxl_device_nic, > > > + libxl_device_net2, > > > + libxl_device_pci, > > > +] > > > > I like the idea of the patch, I think the libxl bits should be in a > > separate python module though or perhaps the gentypes.py. > > I agree, and said as much in my intro mail ;-)Ah I did read it but must''ve slipped my memory during tinkering with the patches :)> > Also I think an integer ptr attribute on the base class would be a good > > idea if only to get rid of nasty whitespace issue :) -- I haven''t groked > > the code too closely but it may also be able to fold such a thing in to > > has_destructor attribute? anyway... > > Ideally the autogenerator wouldn''t concern itself with > indentation/whitespace/etc at all and would simply pipe its output > through a suitably formed invocation of lindent. I just hand coded it > for now to match something usable if not ideal (and to be comparable to > the before state).Fair enough. Gianni _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Ian Campbell
2010-Aug-03 13:30 UTC
Re: [Xen-devel] [PATCH 5 of 8] libxl: autogenerate _libxl_types.h
On Tue, 2010-08-03 at 13:29 +0100, Ian Campbell wrote:> > > I like the idea of the patch, I think the libxl bits should be in a > > separate python module though or perhaps the gentypes.py. > > I agree, and said as much in my intro mail ;-)FWIW this is roughly what the patch to do this would look like (appends to the series, should really be folded back) Ian. libxl: separate type definitions into a separate file. Keeps the type definitions separate from the scaffolding. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> diff -r ba6f06badc87 -r 669a2933c9ab tools/libxl/Makefile --- a/tools/libxl/Makefile Tue Aug 03 13:22:30 2010 +0100 +++ b/tools/libxl/Makefile Tue Aug 03 14:27:57 2010 +0100 @@ -55,8 +55,8 @@ libxl_paths.c: _libxl_paths.h libxl.h: _libxl_types.h -_libxl_types.h _libxl_types.c: gentypes.py libxltypes.py - python gentypes.py __libxl_types.h __libxl_types.c +_libxl_types.h _libxl_types.c: libxltypes.idl gentypes.py libxltypes.py + python gentypes.py libxltypes.idl __libxl_types.h __libxl_types.c mv __libxl_types.h _libxl_types.h mv __libxl_types.c _libxl_types.c diff -r ba6f06badc87 -r 669a2933c9ab tools/libxl/gentypes.py --- a/tools/libxl/gentypes.py Tue Aug 03 13:22:30 2010 +0100 +++ b/tools/libxl/gentypes.py Tue Aug 03 14:27:57 2010 +0100 @@ -92,11 +92,14 @@ def libxl_C_type_destroy(ty, v, indent return s.replace("\n", "\n%s" % indent) if __name__ == ''__main__'': - if len(sys.argv) < 3: - print >>sys.stderr, "Usage: gentypes.py <header> <implementation>" + if len(sys.argv) < 4: + print >>sys.stderr, "Usage: gentypes.py <idl> <header> <implementation>" sys.exit(1) - header = sys.argv[1] + idl = sys.argv[1] + (_,types) = libxltypes.parse(idl) + + header = sys.argv[2] print "outputting libxl type definitions to %s" % header f = open(header, "w") @@ -104,7 +107,8 @@ if __name__ == ''__main__'': f.write("""#ifndef __LIBXL_TYPES_H #define __LIBXL_TYPES_H -/* DO NOT EDIT. +/* + * DO NOT EDIT. * * This file is autogenerated by * "%s" @@ -112,7 +116,7 @@ if __name__ == ''__main__'': """ % " ".join(sys.argv)) - for ty in libxltypes.Types: + for ty in types: f.write(libxl_C_type_define(ty) + ";\n") if ty.has_destructor: f.write("void %s(%s *p);\n" % (ty.destructor, ty.typename)) @@ -121,7 +125,7 @@ if __name__ == ''__main__'': f.write("""#endif /* __LIBXL_TYPES_H */\n""") f.close() - impl = sys.argv[2] + impl = sys.argv[3] print "outputting libxl type implementations to %s" % impl f = open(impl, "w") @@ -146,7 +150,7 @@ static void __string_string_free(char ** """ % " ".join(sys.argv)) - for ty in [ty for ty in libxltypes.Types if ty.generated_destructor]: + for ty in [ty for ty in types if ty.generated_destructor]: f.write("void %s(%s *p)\n" % (ty.destructor, ty.typename)) f.write("{\n") f.write(libxl_C_type_destroy(ty, "p->")) diff -r ba6f06badc87 -r 669a2933c9ab tools/libxl/libxltypes.idl --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/tools/libxl/libxltypes.idl Tue Aug 03 14:27:57 2010 +0100 @@ -0,0 +1,250 @@ +# -*- mode: python; -*- + +# +# Builtin libxl types +# + +libxl_ctx = Builtin("ctx") +libxl_uuid = Builtin("uuid") +libxl_mac = Builtin("mac") +libxl_qemu_machine_type = Builtin("qemu_machine_type") +libxl_console_constype = Builtin("console_constype") +libxl_disk_phystype = Builtin("disk_phystype") +libxl_nic_type = Builtin("nic_type") + +# +# Complex libxl types +# +libxl_dominfo = Struct("dominfo",[ + ("uuid", libxl_uuid), + ("domid", domid), + ("running", BitField(uint8, 1)), + ("blocked", BitField(uint8, 1)), + ("paused", BitField(uint8, 1)), + ("shutdown", BitField(uint8, 1)), + ("dying", BitField(uint8, 1)), + + ("shutdown_reason", unsigned, False, +"""Valid SHUTDOWN_* value from xen/sched.h iff (shutdown||dying). + +Otherwise set to a value guaranteed not to clash with any valid +SHUTDOWN_* constant."""), + ("max_memkb", uint64), + ("cpu_time", uint64), + ("vcpu_max_id", uint32), + ("vcpu_online", uint32), + ]) + +libxl_poolinfo = Struct("poolinfo", [ + ("poolid", uint32) + ]) + +libxl_vminfo = Struct("vminfo", [ + ("uuid", libxl_uuid), + ("domid", domid), + ]) + +libxl_version_info = Struct("version_info", [ + ("xen_version_major", integer), + ("xen_version_minor", integer), + ("xen_version_extra", string), + ("compiler", string), + ("compile_by", string), + ("compile_domain", string), + ("compile_date", string), + ("capabilities", string), + ("changeset", string), + ("virt_start", unsigned_long), + ("pagesize", unsigned_long), + ("commandline", string), + ]) + +libxl_file_reference = Struct("file_reference",[ + ("path", string, False, +"""Path is always set if the file refernece is valid. However if +mapped is true then the actual file may already be unlinked."""), + ("mapped", integer), + ("data", void), + ("size", size_t)]) + +libxl_domain_create_info = Struct("domain_create_info",[ + ("hvm", bool), + ("hap", bool), + ("oos", bool), + ("ssidref", integer), + ("name", string), + ("uuid", libxl_uuid), + ("xsdata", KeyValueList(string, string)), + ("platformdata", KeyValueList(string, string)), + ("poolid", uint32), + ("poolname", string, True), + ]) + +libxl_domain_build_info = Struct("domain_build_info",[ + ("max_vcpus", integer), + ("cur_vcpus", integer), + ("tsc_mode", integer), + ("max_memkb", uint32), + ("target_memkb", uint32), + ("video_memkb", uint32), + ("shadow_memkb", uint32), + ("disable_migrate", bool), + ("kernel", libxl_file_reference), + ("hvm", integer), + ("u", KeyedUnion(None, "hvm", + [("hvm", "%s", Struct(None, + [("pae", bool), + ("apic", bool), + ("acpi", bool), + ("nx", bool), + ("viridian", bool), + ("timeoffset", string), + ("hpet", bool), + ("vpt_align", bool), + ("timer_mode", integer), + ])), + ("pv", "!%s", Struct(None, + [("slack_memkb", uint32), + ("bootloader", string, True), + ("bootloader_args", string, True), + ("cmdline", string), + ("ramdisk", libxl_file_reference), + ("features", string, True), + ])), + ])), + ], + comment +"""Instances of libxl_file_reference contained in this struct which +have been mapped (with libxl_file_reference_map) will be unmapped +by libxl_domain_build/restore. If either of these are never called +then the user is responsible for calling +libxl_file_reference_unmap.""") + +libxl_domain_build_state = Struct("domain_build_state",[ + ("store_port", uint32), + ("store_mfn", unsigned_long), + ("console_port", uint32), + ("console_mfn", unsigned_long), + ]) + +libxl_device_model_info = Struct("device_model_info",[ + ("domid", integer), + ("uuid", libxl_uuid, False, "this is use only with stubdom, and must be different from the domain uuid"), + ("dom_name", string), + ("device_model", string), + ("saved_state", string), + ("type", libxl_qemu_machine_type), + ("videoram", integer, False, "size of the videoram in MB"), + ("stdvga", bool, False, "stdvga enabled or disabled"), + ("vnc", bool, False, "vnc enabled or disabled"), + ("vnclisten", string, False, "address:port that should be listened on for the VNC server if vnc is set"), + ("vncpasswd", string, False, "the VNC password"), + ("vncdisplay", integer, False, "set VNC display number"), + ("vncunused", bool, False, "try to find an unused port for the VNC server"), + ("keymap", string, False, "set keyboard layout, default is en-us keyboard"), + ("sdl", bool, False, "sdl enabled or disabled"), + ("opengl", bool, False, "opengl enabled or disabled (if enabled requires sdl enabled)"), + ("nographic", bool, False, "no graphics, use serial port"), + ("serial", string, False, "serial port re-direct to pty deivce"), + ("boot", string, False, "boot order, for example dca"), + ("usb", bool, False, "usb support enabled or disabled"), + ("usbdevice", string, False, "enable usb mouse: tablet for absolute mouse, mouse for PS/2 protocol relative mouse"), + ("soundhw", string, False, "enable sound hardware"), + ("apic", bool, False, "apic enabled or disabled"), + ("vcpus", integer, False, "max number of vcpus"), + ("vcpu_avail", integer, False, "vcpus actually available"), + ("xen_platform_pci", integer, False, "enable/disable the xen platform pci device"), + ("extra", string_list, False, "extra parameters pass directly to qemu, NULL terminated"), + ], + comment+"""Device Model information. + +Network is missing""") + +libxl_device_vfb = Struct("device_vfb", [ + ("backend_domid", uint32), + ("domid", uint32), + ("devid", integer), + ("vnc", bool, False, "vnc enabled or disabled"), + ("vnclisten", string, False, "address:port that should be listened on for the VNC server if vnc is set"), + ("vncpasswd", string, False, "the VNC password"), + ("vncdisplay", integer, False, "set VNC display number"), + ("vncunused", bool, False, "try to find an unused port for the VNC server"), + ("keymap", string, False, "set keyboard layout, default is en-us keyboard"), + ("sdl", bool, False, "sdl enabled or disabled"), + ("opengl", bool, False, "opengl enabled or disabled (if enabled requires sdl enabled)"), + ("display", string), + ("xauthority", string), + ]) + +libxl_device_vkb = Struct("device_vkb", [ + ("backend_domid", uint32), + ("domid", domid), + ("devid", integer), + ]) + +libxl_device_console = Struct("device_console", [ + ("backend_domid", uint32), + ("domid", domid), + ("devid", integer), + ("constype", libxl_console_constype), + ("build_state", Reference(libxl_domain_build_state)), + ]) + +libxl_device_disk = Struct("device_disk", [ + ("backend_domid", uint32), + ("domid", domid), + ("physpath", string), + ("phystype", libxl_disk_phystype), + ("virtpath", string), + ("unpluggable", integer), + ("readwrite", integer), + ("is_cdrom", integer), + ]) + +libxl_device_nic = Struct("device_nic", [ + ("backend_domid", uint32), + ("domid", domid), + ("devid", integer), + ("mtu", integer), + ("model", string), + ("mac", libxl_mac), + ("ip", inaddr_ip), + ("bridge", string), + ("ifname", string), + ("script", string), + ("nictype", libxl_nic_type), + ]) + +libxl_device_net2 = Struct("device_net2", [ + ("devid", integer), + ("front_mac", libxl_mac), + ("back_mac", libxl_mac), + ("backend_domid", uint32), + ("domid", domid), + ("trusted", BitField(uint32, 1)), + ("back_trusted", BitField(uint32, 1)), + ("filter_mac", BitField(uint32, 1)), + ("front_filter_mac", BitField(uint32, 1)), + ("pdev", uint32), + ("max_bypasses", uint32), + ("bridge", string), + ]) + +libxl_device_pci = Struct("device_pci", [ + (None, Union(None, [("value", unsigned_integer), + (None, Struct(None,[("reserved1", BitField(unsigned_integer, 2)), + ("reg", BitField(unsigned_integer, 6)), + ("func", BitField(unsigned_integer, 3)), + ("dev", BitField(unsigned_integer, 5)), + ("bus", BitField(unsigned_integer, 8)), + ("reserved2", BitField(unsigned_integer, 7)), + ("enable", BitField(unsigned_integer, 1)), + ])), + ]) + ), + ("domain", unsigned_integer), + ("vdevfn", unsigned_integer), + ("msitranslate", bool), + ("power_mgmt", bool), + ]) diff -r ba6f06badc87 -r 669a2933c9ab tools/libxl/libxltypes.py --- a/tools/libxl/libxltypes.py Tue Aug 03 13:22:30 2010 +0100 +++ b/tools/libxl/libxltypes.py Tue Aug 03 14:27:57 2010 +0100 @@ -1,3 +1,5 @@ class Type(object): +import sys + class Type(object): def __init__(self, typename, **kwargs): self.comment = None @@ -155,270 +157,25 @@ string_list = Builtin("char **", namespa inaddr_ip = Builtin("struct in_addr", namespace = None) -# -# Builtin libxl types -# - -libxl_ctx = Builtin("ctx") -libxl_uuid = Builtin("uuid") -libxl_mac = Builtin("mac") -libxl_qemu_machine_type = Builtin("qemu_machine_type") -libxl_console_constype = Builtin("console_constype") -libxl_disk_phystype = Builtin("disk_phystype") -libxl_nic_type = Builtin("nic_type") - -# -# Complex libxl types -# -libxl_dominfo = Struct("dominfo",[ - ("uuid", libxl_uuid), - ("domid", domid), - ("running", BitField(uint8, 1)), - ("blocked", BitField(uint8, 1)), - ("paused", BitField(uint8, 1)), - ("shutdown", BitField(uint8, 1)), - ("dying", BitField(uint8, 1)), +def parse(f): + print >>sys.stderr, "Parsing %s" % f - ("shutdown_reason", unsigned, False, -"""Valid SHUTDOWN_* value from xen/sched.h iff (shutdown||dying). - -Otherwise set to a value guaranteed not to clash with any valid -SHUTDOWN_* constant."""), - ("max_memkb", uint64), - ("cpu_time", uint64), - ("vcpu_max_id", uint32), - ("vcpu_online", uint32), - ]) - -libxl_poolinfo = Struct("poolinfo", [ - ("poolid", uint32) - ]) - -libxl_vminfo = Struct("vminfo", [ - ("uuid", libxl_uuid), - ("domid", domid), - ]) - -libxl_version_info = Struct("version_info", [ - ("xen_version_major", integer), - ("xen_version_minor", integer), - ("xen_version_extra", string), - ("compiler", string), - ("compile_by", string), - ("compile_domain", string), - ("compile_date", string), - ("capabilities", string), - ("changeset", string), - ("virt_start", unsigned_long), - ("pagesize", unsigned_long), - ("commandline", string), - ]) - -libxl_file_reference = Struct("file_reference",[ - ("path", string, False, -"""Path is always set if the file refernece is valid. However if -mapped is true then the actual file may already be unlinked."""), - ("mapped", integer), - ("data", void), - ("size", size_t)]) - -libxl_domain_create_info = Struct("domain_create_info",[ - ("hvm", bool), - ("hap", bool), - ("oos", bool), - ("ssidref", integer), - ("name", string), - ("uuid", libxl_uuid), - ("xsdata", KeyValueList(string, string)), - ("platformdata", KeyValueList(string, string)), - ("poolid", uint32), - ("poolname", string, True), - ]) - -libxl_domain_build_info = Struct("domain_build_info",[ - ("max_vcpus", integer), - ("cur_vcpus", integer), - ("tsc_mode", integer), - ("max_memkb", uint32), - ("target_memkb", uint32), - ("video_memkb", uint32), - ("shadow_memkb", uint32), - ("disable_migrate", bool), - ("kernel", libxl_file_reference), - ("hvm", integer), - ("u", KeyedUnion(None, "hvm", - [("hvm", "%s", Struct(None, - [("pae", bool), - ("apic", bool), - ("acpi", bool), - ("nx", bool), - ("viridian", bool), - ("timeoffset", string), - ("hpet", bool), - ("vpt_align", bool), - ("timer_mode", integer), - ])), - ("pv", "!%s", Struct(None, - [("slack_memkb", uint32), - ("bootloader", string, True), - ("bootloader_args", string, True), - ("cmdline", string), - ("ramdisk", libxl_file_reference), - ("features", string, True), - ])), - ])), - ], - comment -"""Instances of libxl_file_reference contained in this struct which -have been mapped (with libxl_file_reference_map) will be unmapped -by libxl_domain_build/restore. If either of these are never called -then the user is responsible for calling -libxl_file_reference_unmap.""") - -libxl_domain_build_state = Struct("domain_build_state",[ - ("store_port", uint32), - ("store_mfn", unsigned_long), - ("console_port", uint32), - ("console_mfn", unsigned_long), - ]) - -libxl_device_model_info = Struct("device_model_info",[ - ("domid", integer), - ("uuid", libxl_uuid, False, "this is use only with stubdom, and must be different from the domain uuid"), - ("dom_name", string), - ("device_model", string), - ("saved_state", string), - ("type", libxl_qemu_machine_type), - ("videoram", integer, False, "size of the videoram in MB"), - ("stdvga", bool, False, "stdvga enabled or disabled"), - ("vnc", bool, False, "vnc enabled or disabled"), - ("vnclisten", string, False, "address:port that should be listened on for the VNC server if vnc is set"), - ("vncpasswd", string, False, "the VNC password"), - ("vncdisplay", integer, False, "set VNC display number"), - ("vncunused", bool, False, "try to find an unused port for the VNC server"), - ("keymap", string, False, "set keyboard layout, default is en-us keyboard"), - ("sdl", bool, False, "sdl enabled or disabled"), - ("opengl", bool, False, "opengl enabled or disabled (if enabled requires sdl enabled)"), - ("nographic", bool, False, "no graphics, use serial port"), - ("serial", string, False, "serial port re-direct to pty deivce"), - ("boot", string, False, "boot order, for example dca"), - ("usb", bool, False, "usb support enabled or disabled"), - ("usbdevice", string, False, "enable usb mouse: tablet for absolute mouse, mouse for PS/2 protocol relative mouse"), - ("soundhw", string, False, "enable sound hardware"), - ("apic", bool, False, "apic enabled or disabled"), - ("vcpus", integer, False, "max number of vcpus"), - ("vcpu_avail", integer, False, "vcpus actually available"), - ("xen_platform_pci", integer, False, "enable/disable the xen platform pci device"), - ("extra", string_list, False, "extra parameters pass directly to qemu, NULL terminated"), - ], - comment-"""Device Model information. - -Network is missing""") - -libxl_device_vfb = Struct("device_vfb", [ - ("backend_domid", uint32), - ("domid", uint32), - ("devid", integer), - ("vnc", bool, False, "vnc enabled or disabled"), - ("vnclisten", string, False, "address:port that should be listened on for the VNC server if vnc is set"), - ("vncpasswd", string, False, "the VNC password"), - ("vncdisplay", integer, False, "set VNC display number"), - ("vncunused", bool, False, "try to find an unused port for the VNC server"), - ("keymap", string, False, "set keyboard layout, default is en-us keyboard"), - ("sdl", bool, False, "sdl enabled or disabled"), - ("opengl", bool, False, "opengl enabled or disabled (if enabled requires sdl enabled)"), - ("display", string), - ("xauthority", string), - ]) - -libxl_device_vkb = Struct("device_vkb", [ - ("backend_domid", uint32), - ("domid", domid), - ("devid", integer), - ]) - -libxl_device_console = Struct("device_console", [ - ("backend_domid", uint32), - ("domid", domid), - ("devid", integer), - ("constype", libxl_console_constype), - ("build_state", Reference(libxl_domain_build_state)), - ]) - -libxl_device_disk = Struct("device_disk", [ - ("backend_domid", uint32), - ("domid", domid), - ("physpath", string), - ("phystype", libxl_disk_phystype), - ("virtpath", string), - ("unpluggable", integer), - ("readwrite", integer), - ("is_cdrom", integer), - ]) - -libxl_device_nic = Struct("device_nic", [ - ("backend_domid", uint32), - ("domid", domid), - ("devid", integer), - ("mtu", integer), - ("model", string), - ("mac", libxl_mac), - ("ip", inaddr_ip), - ("bridge", string), - ("ifname", string), - ("script", string), - ("nictype", libxl_nic_type), - ]) - -libxl_device_net2 = Struct("device_net2", [ - ("devid", integer), - ("front_mac", libxl_mac), - ("back_mac", libxl_mac), - ("backend_domid", uint32), - ("domid", domid), - ("trusted", BitField(uint32, 1)), - ("back_trusted", BitField(uint32, 1)), - ("filter_mac", BitField(uint32, 1)), - ("front_filter_mac", BitField(uint32, 1)), - ("pdev", uint32), - ("max_bypasses", uint32), - ("bridge", string), - ]) - -libxl_device_pci = Struct("device_pci", [ - (None, Union(None, [("value", unsigned_integer), - (None, Struct(None,[("reserved1", BitField(unsigned_integer, 2)), - ("reg", BitField(unsigned_integer, 6)), - ("func", BitField(unsigned_integer, 3)), - ("dev", BitField(unsigned_integer, 5)), - ("bus", BitField(unsigned_integer, 8)), - ("reserved2", BitField(unsigned_integer, 7)), - ("enable", BitField(unsigned_integer, 1)), - ])), - ]) - ), - ("domain", unsigned_integer), - ("vdevfn", unsigned_integer), - ("msitranslate", bool), - ("power_mgmt", bool), - ]) - -Types = [ - libxl_dominfo, - libxl_poolinfo, - libxl_vminfo, - libxl_version_info, - libxl_domain_create_info, - libxl_file_reference, - libxl_domain_build_info, - libxl_domain_build_state, - libxl_device_model_info, - libxl_device_vfb, - libxl_device_vkb, - libxl_device_console, - libxl_device_disk, - libxl_device_nic, - libxl_device_net2, - libxl_device_pci, -] + globs = {} + locs = {} + for n,t in globals().items(): + if isinstance(t, Type): + globs[n] = t + elif isinstance(t,type(object)) and issubclass(t, Type): + globs[n] = t + + try: + execfile(f, globs, locs) + except SyntaxError,e: + raise SyntaxError, \ + "Errors were found at line %d while processing %s:\n\t%s"\ + %(e.lineno,defconfig,e.text) + + types = [t for n,t in locs.items() if isinstance(t,Type)] + builtins = [t for t in types if isinstance(t,Builtin)] + types = [t for t in types if not isinstance(t,Builtin)] + return (builtins,types) _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Gianni Tedesco
2010-Aug-04 10:25 UTC
Re: [Xen-devel] [PATCH 0 of 8] [RFC] libxl: autogenerate type definitions and destructor functions
On Tue, 2010-08-03 at 12:00 +0100, Ian Campbell wrote:> This series is an RFC (I couldn''t convince "hg email" to mark mails > other than the first as such). > > The series introduces auto-generation of the type definitions used in > the libxl interface followed by auto-generation of a destructor > function for each type. In the future it may be possible to use the > related data structures for other purposes, for example auto-generation > of the functions to marshal between C and language binding data types. > > The utility of the destructor functions is related to the direction > taken by libxl wrt allocations made by the library vs. those made by > the caller i.e. attaching stuff to the libxl context vs explicit > freeing by the caller. Given the current ad-hoc nature of the > implementation of the current "policy" (and I use the word a loosely) > across to libxl/xl interface today this patchset is likely to introduce > either double-frees or leaks depending on which approach is currently > used for a given allocation so this series is definitely intended to > follow (or be incorporated into) a series which makes a firm decision > about that policy and implements it.Speaking of which, part of that work in libxl will include me sprinkling some gcc __attribute__((visibility("hidden"))) around the place and other general librification work. Probably it would be a good idea to extend this code to generate member get/set functions too so that we can actually hide these structures behind a defined ABI. I am not proposing stable ABI just yet, but it''s probably about time to start thinking about that seriously as toolstacks and libvirt etc. may start depending on libxl soonish. Gianni _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Stefano Stabellini
2010-Aug-04 17:16 UTC
Re: [Xen-devel] [PATCH 0 of 8] [RFC] libxl: autogenerate type definitions and destructor functions
On Tue, 3 Aug 2010, Ian Campbell wrote:> This series is an RFC (I couldn''t convince "hg email" to mark mails > other than the first as such). > > The series introduces auto-generation of the type definitions used in > the libxl interface followed by auto-generation of a destructor > function for each type. In the future it may be possible to use the > related data structures for other purposes, for example auto-generation > of the functions to marshal between C and language binding data types. > > The utility of the destructor functions is related to the direction > taken by libxl wrt allocations made by the library vs. those made by > the caller i.e. attaching stuff to the libxl context vs explicit > freeing by the caller. Given the current ad-hoc nature of the > implementation of the current "policy" (and I use the word a loosely) > across to libxl/xl interface today this patchset is likely to introduce > either double-frees or leaks depending on which approach is currently > used for a given allocation so this series is definitely intended to > follow (or be incorporated into) a series which makes a firm decision > about that policy and implements it. > > Given that (massive) caveat the complete series does make "xl create > -n" clean of leaks and double frees, at least as far as valgrind is > concerned. > > I''m not yet totally happy with some aspects of the auto generation, in > particular the type definitions should be separated from the > scaffolding in libxltypes.py (e.g. into libxl.idl or similar) and some > of the overly C specific constructs which have crept into the data > types (e.g. the use of "*" in type names) need careful > consideration. (I don''t think the C-isms are universally a bad thing > -- the use cases which are envisioned, including those relating to > language bindings, are generally expected to be on the C side of > things). Other areas for further work are in the area of the > {has,generate}_destructor type annotation (currently a mess, as is the > passing around of type annotations generally) and the representation > of pass-by-value-ness vs pass-by-reference-ness. > > Regardless of that I think I have progressed to the point where taking > it any further would be a potential waste of time without some > validation of the overall concept/direction. >I really like the concept of this series, and for the moment I have applied patches 1 and 2, I''ll wait for the other issues to be settled before applying the rest. In particular I agree with Gianni and Ian on the fact that libxl data structures should live in a separate idl-like file. Regarding the memory policy: I am all for explicit freeing by the caller. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Ian Jackson
2010-Aug-10 14:41 UTC
Re: [Xen-devel] [PATCH 0 of 8] [RFC] libxl: autogenerate type definitions and destructor functions
Stefano Stabellini writes ("Re: [Xen-devel] [PATCH 0 of 8] [RFC] libxl:
autogenerate type definitions and destructor
functions"):> I really like the concept of this series, and for the moment I have
> applied patches 1 and 2, I''ll wait for the other issues to be
settled
> before applying the rest.
> In particular I agree with Gianni and Ian on the fact that libxl data
> structures should live in a separate idl-like file.
Yes, all excellent stuff, thanks Ian.
> Regarding the memory policy: I am all for explicit freeing by the
> caller.
Yes.
Ian.
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Ian Campbell
2010-Aug-10 14:48 UTC
Re: [Xen-devel] [PATCH 0 of 8] [RFC] libxl: autogenerate type definitions and destructor functions
On Tue, 2010-08-10 at 15:41 +0100, Ian Jackson wrote:> Stefano Stabellini writes ("Re: [Xen-devel] [PATCH 0 of 8] [RFC] libxl: autogenerate type definitions and destructor functions"): > > I really like the concept of this series, and for the moment I have > > applied patches 1 and 2, I''ll wait for the other issues to be settled > > before applying the rest. > > In particular I agree with Gianni and Ian on the fact that libxl data > > structures should live in a separate idl-like file. > > Yes, all excellent stuff, thanks Ian.OK, I''ll rebase (I''ve been away for a few days and no doubt everything has changed under my feet ;-)) and repost for more in depth review. Ian. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel