This is the first iteration of the GObject bindings. I have 'kicked the tyres' on these, meaning I have ensured that a bunch of basic manual tests work as expected. I'm in the process of adding more comprehensive tests. Here's an example simple javascript program which uses these bindings: ==const Guestfs = imports.gi.Guestfs; print('Starting'); var g = new Guestfs.Session(); var o = new Guestfs.AddDriveOpts({format: 'raw', iface: 'virtio'}); g.add_drive_opts('tests/guests/fedora.img', null); g.launch(); r = g.inspect_os(); m = g.inspect_get_mountpoints(r[0]); print(m['/boot']); print('Finished'); == Run this file as ./run gjs gobject-test.js
Matthew Booth
2012-Jan-17 15:48 UTC
[Libguestfs] [PATCH 1/2] gobject: Add GObject bindings
--- .gitignore | 4 + Makefile.am | 3 + configure.ac | 17 + generator/Makefile.am | 1 + generator/generator_gobject.ml | 873 ++++++++++++++++++++++++++++++++++++++++ generator/generator_main.ml | 3 + gobject/Makefile.am | 41 ++ m4/introspection.m4 | 94 +++++ po/POTFILES.in | 1 + 9 files changed, 1037 insertions(+), 0 deletions(-) create mode 100644 generator/generator_gobject.ml create mode 100644 gobject/Makefile.am create mode 100644 m4/introspection.m4 diff --git a/.gitignore b/.gitignore index 0611975..0615dc2 100644 --- a/.gitignore +++ b/.gitignore @@ -117,6 +117,10 @@ generator/stamp-generator .git-module-status /gnulib /GNUmakefile +gobject/Guestfs-1.0.gir +gobject/Guestfs-1.0.typelib +gobject/guestfs-gobject.c +gobject/guestfs-gobject.h .guestfs-* guestfs.* guestfsd-in-wine.log diff --git a/Makefile.am b/Makefile.am index d14cc12..69a9ed1 100644 --- a/Makefile.am +++ b/Makefile.am @@ -79,6 +79,9 @@ endif if HAVE_ERLANG SUBDIRS += erlang erlang/examples endif +if HAVE_GOBJECT +SUBDIRS += gobject +endif # Unconditional because nothing is built yet. SUBDIRS += csharp diff --git a/configure.ac b/configure.ac index d8abf71..c549388 100644 --- a/configure.ac +++ b/configure.ac @@ -986,6 +986,18 @@ AS_IF([test "x$PERL" != "xno"], AM_CONDITIONAL([HAVE_TOOLS], [test "x$PERL" != "xno" && test "x$missing_perl_modules" != "xyes"]) +dnl gobject library +PKG_CHECK_MODULES([GOBJECT], [gobject-2.0], + [AC_SUBST([GOBJECT_CFLAGS]) + AC_SUBST([GOBJECT_LIBS]) + AC_DEFINE([HAVE_GOBJECT],[1],[gobject library found at compile time.]) + ], + [AC_MSG_WARN([gobject library not found, gobject binding will be disabled])]) +AM_CONDITIONAL([HAVE_GOBJECT],[test "x$GOBJECT_LIBS" != "x"]) + +dnl gobject introspection +GOBJECT_INTROSPECTION_CHECK([1.30.0]) + dnl Library versioning. MAX_PROC_NR=`cat $srcdir/src/MAX_PROC_NR` AC_SUBST(MAX_PROC_NR) @@ -1022,6 +1034,7 @@ AC_CONFIG_FILES([Makefile generator/Makefile gnulib/lib/Makefile gnulib/tests/Makefile + gobject/Makefile haskell/Makefile inspector/Makefile java/Makefile @@ -1094,6 +1107,10 @@ if test "x$HAVE_TOOLS_TRUE" = "x"; then echo "yes"; else echo "no"; fi echo -n "virt-resize ......................... " if test "x$HAVE_OCAML_TRUE" = "x"; then echo "yes"; else echo "no"; fi echo "FUSE filesystem ..................... $enable_fuse" +echo -n "gobject bindings .................... " +if test "x$HAVE_GOBJECT_TRUE" = "x"; then echo "yes"; else echo "no"; fi +echo -n "gobject introspection ............... " +if test "x$HAVE_INTROSPECTION" = "x"; then echo "yes"; else echo "no"; fi echo echo "If any optional component is configured 'no' when you expected 'yes'" echo "then you should check the preceeding messages." diff --git a/generator/Makefile.am b/generator/Makefile.am index b01cf35..526b959 100644 --- a/generator/Makefile.am +++ b/generator/Makefile.am @@ -47,6 +47,7 @@ SOURCES = \ generator_csharp.ml \ generator_php.ml \ generator_erlang.ml \ + generator_gobject.ml \ generator_bindtests.ml \ generator_errnostring.ml \ generator_main.ml diff --git a/generator/generator_gobject.ml b/generator/generator_gobject.ml new file mode 100644 index 0000000..58b5ce5 --- /dev/null +++ b/generator/generator_gobject.ml @@ -0,0 +1,873 @@ +(* libguestfs + * Copyright (C) 2012 Red Hat Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + *) + +(* Please read generator/README first. *) + +open Str + +open Generator_actions +open Generator_docstrings +open Generator_pr +open Generator_structs +open Generator_types +open Generator_utils + +let rec camel_of_name flags name + "Guestfs" ^ + try + find_map (function CamelName n -> Some n | _ -> None) flags + with Not_found -> + List.fold_left ( + fun a b -> + a ^ String.uppercase (Str.first_chars b 1) ^ Str.string_after b 1 + ) "" (Str.split (regexp "_") name) + +and returns_error (ret:Generator_types.ret) = match ret with + | RConstOptString _ -> false + | _ -> true + +and generate_gobject_proto name ?(single_line = true) + (ret, args, optargs) flags + let spacer = if single_line then " " else "\n" in + let ptr_spacer = if single_line then "" else "\n" in + (match ret with + | RErr -> + pr "gboolean%s" spacer + | RInt _ -> + pr "gint32%s" spacer + | RInt64 _ -> + pr "gint64%s" spacer + | RBool _ -> + pr "gint8%s" spacer + | RConstString _ + | RConstOptString _ -> + pr "const gchar *%s" ptr_spacer + | RString _ -> + pr "gchar *%s" ptr_spacer + | RStringList _ -> + pr "gchar **%s" ptr_spacer + | RStruct (_, typ) -> + let name = camel_name_of_struct typ in + pr "Guestfs%s *%s" name ptr_spacer + | RStructList (_, typ) -> + let name = camel_name_of_struct typ in + pr "Guestfs%s **%s" name ptr_spacer + | RHashtable _ -> + pr "GHashTable *%s" ptr_spacer + | RBufferOut _ -> + pr "guint8 *%s" ptr_spacer + ); + pr "guestfs_session_%s(GuestfsSession *session" name; + List.iter ( + fun arg -> + pr ", "; + match arg with + | Bool n -> + pr "gboolean %s" n + | Int n -> + pr "gint32 %s" n + | Int64 n-> + pr "gint64 %s" n + | String n + | Device n + | Pathname n + | Dev_or_Path n + | OptString n + | Key n + | FileIn n + | FileOut n -> + pr "const gchar *%s" n + | StringList n + | DeviceList n -> + pr "gchar *const *%s" n + | BufferIn n -> + pr "const guint8 *%s, gsize %s_size" n n + | Pointer _ -> + failwith "gobject bindings do not support Pointer arguments" + ) args; + if optargs <> [] then ( + pr ", %s *optargs" (camel_of_name flags name) + ); + (match ret with + | RBufferOut _ -> + pr ", gsize *size_r" + | _ -> ()); + if List.exists (function Cancellable -> true | _ -> false) flags then + pr ", GCancellable *cancellable"; + if returns_error ret then pr ", GError **err"; + pr ")"; + +and generate_gobject_header_static () + pr " +#ifndef GUESTFS_GOBJECT_H__ +#define GUESTFS_GOBJECT_H__ + +#include <glib-object.h> +#include <gio/gio.h> + +G_BEGIN_DECLS + +/* Guestfs::Session object definition */ +#define GUESTFS_TYPE_SESSION (guestfs_session_get_type()) +#define GUESTFS_SESSION(obj) (G_TYPE_CHECK_INSTANCE_CAST ( \ + (obj), \ + GUESTFS_TYPE_SESSION, \ + GuestfsSession)) +#define GUESTFS_SESSION_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ( \ + (klass), \ + GUESTFS_TYPE_SESSION, \ + GuestfsSessionClass)) +#define GUESTFS_IS_SESSION(obj) (G_TYPE_CHECK_INSTANCE_TYPE ( \ + (obj), \ + GUESTFS_TYPE_SESSION)) +#define GUESTFS_IS_SESSION_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ( \ + (klass), \ + GUESTFS_TYPE_SESSION)) +#define GUESTFS_SESSION_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ( \ + (obj), \ + GUESTFS_TYPE_SESSION, \ + GuestfsSessionClass)) + +typedef struct _GuestfsSession GuestfsSession; +typedef struct _GuestfsSessionClass GuestfsSessionClass; +typedef struct _GuestfsSessionPrivate GuestfsSessionPrivate; + +struct _GuestfsSession +{ + GObject parent; + GuestfsSessionPrivate *priv; +}; + +struct _GuestfsSessionClass +{ + GObjectClass parent_class; +}; + +GType guestfs_session_get_type(void); +GuestfsSession *guestfs_session_new(void); + +/* Guestfs::Tristate */ +typedef enum +{ + GUESTFS_TRISTATE_FALSE, + GUESTFS_TRISTATE_TRUE, + GUESTFS_TRISTATE_NONE +} GuestfsTristate; + +GType guestfs_tristate_get_type(void); +#define GUESTFS_TYPE_TRISTATE (guestfs_tristate_get_type()) + +" + +and generate_gobject_header_static_footer () + pr " + +G_END_DECLS + +#endif /* GUESTFS_GOBJECT_H__ */ +" + +and generate_gobject_header_structs () + pr "/* Structs */\n"; + List.iter ( + fun (typ, cols) -> + let camel = camel_name_of_struct typ in + pr "typedef struct _Guestfs%s Guestfs%s;\n" camel camel; + pr "struct _Guestfs%s {\n" camel; + List.iter ( + function + | n, FChar -> + pr " gchar %s;\n" n + | n, FUInt32 -> + pr " guint32 %s;\n" n + | n, FInt32 -> + pr " gint32 %s;\n" n + | n, (FUInt64|FBytes) -> + pr " guint64 %s;\n" n + | n, FInt64 -> + pr " gint64 %s;\n" n + | n, FString -> + pr " gchar *%s;\n" n + | n, FBuffer -> + pr " guint8 *%s;\n" n; + pr " guint32 %s_size;\n" n + | n, FUUID -> + pr " /* The next field is NOT nul-terminated, be careful when printing it: */\n"; + pr " gchar %s[32];\n" n + | n, FOptPercent -> + pr " /* The next field is [0..100] or -1 meaning 'not present': */\n"; + pr " gfloat %s;\n" n + ) cols; + pr "};\n"; + pr "GType guestfs_%s_get_type(void);\n\n" typ; + ) structs; + +and iter_optargs f + List.iter ( + function + | name, (_, _, (_::_ as optargs)), _, flags,_, _, _ -> + f name optargs flags + | _ -> () + ) + +and generate_gobject_header_optarg name optargs flags + let uc_name = String.uppercase name in + let camel_name = camel_of_name flags name in + let type_define = "GUESTFS_TYPE_" ^ uc_name in + + pr "/* %s */\n" camel_name; + + pr "#define %s " type_define; + pr "(guestfs_%s_get_type())\n" name; + + pr "#define GUESTFS_%s(obj) " uc_name; + pr "(G_TYPE_CHECK_INSTANCE_CAST((obj), %s, %s))\n" type_define camel_name; + + pr "#define GUESTFS_%s_CLASS(klass) " uc_name; + pr "(G_TYPE_CHECK_CLASS_CAST((klass), %s, %sClass))\n" type_define camel_name; + + pr "#define GUESTFS_IS_%s(obj) " uc_name; + pr "(G_TYPE_CHECK_INSTANCE_TYPE((klass), %s))\n" type_define; + + pr "#define GUESTFS_IS_%s_CLASS(klass) " uc_name; + pr "(G_TYPE_CHECK_CLASS_TYPE((klass), %s))\n" type_define; + + pr "#define GUESTFS_%s_GET_CLASS(obj) " uc_name; + pr "(G_TYPE_INSTANCE_GET_CLASS((obj), %s, %sClass))\n" type_define camel_name; + + pr "\n"; + + List.iter ( + fun suffix -> + let name = camel_name ^ suffix in + pr "typedef struct _%s %s;\n" name name; + ) [ ""; "Private"; "Class" ]; + + pr "\n"; + + pr "struct _%s {\n" camel_name; + pr " GObject parent;\n"; + pr " %sPrivate *priv;\n" camel_name; + pr "};\n\n"; + + pr "struct _%sClass {\n" camel_name; + pr " GObjectClass parent_class;\n"; + pr "};\n\n"; + + pr "GType guestfs_%s_get_type(void);\n" name; + pr "%s *guestfs_%s_new(void);\n" camel_name name; + + pr "\n"; + +and generate_gobject_header_optargs () + pr "/* Optional arguments */\n\n"; + iter_optargs ( + fun name optargs flags -> + generate_gobject_header_optarg name optargs flags + ) all_functions; + +and generate_gobject_header_methods () + pr "/* Generated methods */\n"; + List.iter ( + fun (name, style, _, flags, _, _, _) -> + generate_gobject_proto name style flags; + pr ";\n"; + ) all_functions; + +and generate_gobject_c_static () + pr " +#include <glib.h> +#include <glib-object.h> +#include <guestfs.h> +#include <string.h> + +#include <stdio.h> + +#include \"guestfs-gobject.h\" + +/** + * SECTION: guestfs-session + * @short_description: Libguestfs session + * @include: guestfs-gobject.h + * + * A libguestfs session which can be used to inspect and modify virtual disk + * images. + */ + +#define GUESTFS_SESSION_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ( \ + (obj), \ + GUESTFS_TYPE_SESSION, \ + GuestfsSessionPrivate)) + +struct _GuestfsSessionPrivate +{ + guestfs_h *g; +}; + +G_DEFINE_TYPE(GuestfsSession, guestfs_session, G_TYPE_OBJECT); + +static void +guestfs_session_finalize(GObject *object) +{ + GuestfsSession *session = GUESTFS_SESSION(object); + GuestfsSessionPrivate *priv = session->priv; + + if (priv->g) guestfs_close(priv->g); + + G_OBJECT_CLASS(guestfs_session_parent_class)->finalize(object); +} + +static void +guestfs_session_class_init(GuestfsSessionClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS(klass); + + object_class->finalize = guestfs_session_finalize; + + g_type_class_add_private(klass, sizeof(GuestfsSessionPrivate)); +} + +static void +guestfs_session_init(GuestfsSession *session) +{ + session->priv = GUESTFS_SESSION_GET_PRIVATE(session); + session->priv->g = guestfs_create(); +} + +/** + * guestfs_session_new: + * + * Create a new libguestfs session. + * + * Returns: (transfer full): a new guestfs session object + */ +GuestfsSession * +guestfs_session_new(void) +{ + return GUESTFS_SESSION(g_object_new(GUESTFS_TYPE_SESSION, NULL)); +} + +/* Guestfs::Tristate */ +GType +guestfs_tristate_get_type(void) +{ + static GType etype = 0; + if (etype == 0) { + static const GEnumValue values[] = { + { GUESTFS_TRISTATE_FALSE, \"GUESTFS_TRISTATE_FALSE\", \"false\" }, + { GUESTFS_TRISTATE_TRUE, \"GUESTFS_TRISTATE_TRUE\", \"true\" }, + { GUESTFS_TRISTATE_NONE, \"GUESTFS_TRISTATE_NONE\", \"none\" }, + { 0, NULL, NULL } + }; + etype = g_enum_register_static(\"GuestfsTristate\", values); + } + return etype; +} + +/* Error quark */ + +#define GUESTFS_ERROR guestfs_error_quark() + +static GQuark +guestfs_error_quark(void) +{ + return g_quark_from_static_string(\"guestfs\"); +} + +/* Cancellation handler */ +static void +cancelled_handler(gpointer data) +{ + guestfs_h *g = (guestfs_h *)data; + guestfs_user_cancel(g); +} + +" + +and generate_gobject_c_structs () + pr "/* Structs */\n\n"; + List.iter ( + fun (typ, cols) -> + let name = "guestfs_" ^ typ in + let camel_name = "Guestfs" ^ camel_name_of_struct typ in + pr "/* %s */\n" camel_name; + + pr "static %s *\n" camel_name; + pr "%s_copy(%s *src)\n" name camel_name; + pr "{\n"; + pr " return g_slice_dup(%s, src);\n" camel_name; + pr "}\n\n"; + + pr "static void\n"; + pr "%s_free(%s *src)\n" name camel_name; + pr "{\n"; + pr " g_slice_free(%s, src);\n" camel_name; + pr "}\n\n"; + + pr "G_DEFINE_BOXED_TYPE(%s, %s, %s_copy, %s_free)\n\n" + camel_name name name name; + ) structs + +and generate_gobject_c_optarg name optargs flags + let uc_name = String.uppercase name in + let camel_name = camel_of_name flags name in + let type_define = "GUESTFS_TYPE_" ^ uc_name in + + pr "/* %s */\n" camel_name; + pr "#define GUESTFS_%s_GET_PRIVATE(obj) " uc_name; + pr "(G_TYPE_INSTANCE_GET_PRIVATE((obj), %s, %sPrivate))\n\n" + type_define camel_name; + + pr "struct _%sPrivate {\n" camel_name; + List.iter ( + fun optargt -> + let name = name_of_optargt optargt in + let typ = match optargt with + | OBool n -> "GuestfsTristate " + | OInt n -> "gint " + | OInt64 n -> "gint64 " + | OString n -> "gchar *" in + pr " %s%s;\n" typ name; + ) optargs; + pr "};\n\n"; + + pr "G_DEFINE_TYPE(%s, guestfs_%s, G_TYPE_OBJECT);\n\n" camel_name name; + + pr "enum {\n"; + pr "PROP_GUESTFS_%s_PROP0" uc_name; + List.iter ( + fun optargt -> + let uc_optname = String.uppercase (name_of_optargt optargt) in + pr ",\n PROP_GUESTFS_%s_%s" uc_name uc_optname; + ) optargs; + pr "\n};\n\n"; + + pr "static void\nguestfs_%s_set_property" name; + pr "(GObject *object, guint property_id, const GValue *value, GParamSpec *pspec)\n"; + pr "{\n"; + pr " %s *self = GUESTFS_%s(object);\n" camel_name uc_name; + pr " %sPrivate *priv = self->priv;\n\n" camel_name; + + pr " switch (property_id) {\n"; + List.iter ( + fun optargt -> + let optname = name_of_optargt optargt in + let uc_optname = String.uppercase optname in + pr " case PROP_GUESTFS_%s_%s:\n" uc_name uc_optname; + (match optargt with + | OString n -> + pr " g_free(priv->%s);\n" n; + | OBool _ | OInt _ | OInt64 _ -> ()); + let set_value_func = match optargt with + | OBool _ -> "g_value_get_enum" + | OInt _ -> "g_value_get_int" + | OInt64 _ -> "g_value_get_int64" + | OString _ -> "g_value_dup_string" + in + pr " priv->%s = %s(value);\n" optname set_value_func; + pr " break;\n\n"; + ) optargs; + pr " default:\n"; + pr " /* Invalid property */\n"; + pr " G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec);\n"; + pr " }\n"; + pr "}\n\n"; + + pr "static void\nguestfs_%s_get_property" name; + pr "(GObject *object, guint property_id, GValue *value, GParamSpec *pspec)\n"; + pr "{\n"; + pr " %s *self = GUESTFS_%s(object);\n" camel_name uc_name; + pr " %sPrivate *priv = self->priv;\n\n" camel_name; + + pr " switch (property_id) {\n"; + List.iter ( + fun optargt -> + let optname = name_of_optargt optargt in + let uc_optname = String.uppercase optname in + pr " case PROP_GUESTFS_%s_%s:\n" uc_name uc_optname; + let set_value_func = match optargt with + | OBool _ -> "enum" + | OInt _ -> "int" + | OInt64 _ -> "int64" + | OString _ -> "string" + in + pr " g_value_set_%s(value, priv->%s);\n" set_value_func optname; + pr " break;\n\n"; + ) optargs; + pr " default:\n"; + pr " /* Invalid property */\n"; + pr " G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec);\n"; + pr " }\n"; + pr "}\n\n"; + + pr "static void\nguestfs_%s_finalize(GObject *object)\n" name; + pr "{\n"; + pr " %s *self = GUESTFS_%s(object);\n" camel_name uc_name; + pr " %sPrivate *priv = self->priv;\n\n" camel_name; + + List.iter ( + function + | OString n -> + pr " g_free(priv->%s);\n" n + | OBool _ | OInt _ | OInt64 _ -> () + ) optargs; + pr "\n"; + + pr " G_OBJECT_CLASS(guestfs_%s_parent_class)->finalize(object);\n" name; + pr "}\n\n"; + + pr "static void\nguestfs_%s_class_init(%sClass *klass)\n" name camel_name; + pr "{\n"; + pr " GObjectClass *object_class = G_OBJECT_CLASS(klass);\n"; + pr " GParamSpec *pspec;\n\n"; + + pr " object_class->set_property = guestfs_%s_set_property;\n" name; + pr " object_class->get_property = guestfs_%s_get_property;\n\n" name; + + List.iter ( + fun optargt -> + let optname = name_of_optargt optargt in + let uc_optname = String.uppercase optname in + pr " pspec = "; + (match optargt with + | OBool n -> + pr "g_param_spec_enum(\"%s\", \"%s\", NULL, " optname optname; + pr "GUESTFS_TYPE_TRISTATE, GUESTFS_TRISTATE_NONE, "; + | OInt n -> + pr "g_param_spec_int(\"%s\", \"%s\", NULL, " optname optname; + pr "G_MININT32, G_MAXINT32, -1, "; + | OInt64 n -> + pr "g_param_spec_int64(\"%s\", \"%s\", NULL, " optname optname; + pr "G_MININT64, G_MAXINT64, -1, "; + | OString n -> + pr "g_param_spec_string(\"%s\", \"%s\", NULL, " optname optname; + pr "NULL, "); + pr "G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);\n"; + pr " g_object_class_install_property(object_class, "; + pr "PROP_GUESTFS_%s_%s, pspec);\n\n" uc_name uc_optname; + ) optargs; + + pr " object_class->finalize = guestfs_%s_finalize;\n" name; + pr " g_type_class_add_private(klass, sizeof(%sPrivate));\n" camel_name; + pr "}\n\n"; + + pr "static void\nguestfs_%s_init(%s *o)\n" name camel_name; + pr "{\n"; + pr " o->priv = GUESTFS_%s_GET_PRIVATE(o);\n" uc_name; + pr " /* XXX: Find out if gobject already zeroes private structs */\n"; + pr " memset(o->priv, 0, sizeof(%sPrivate));\n" camel_name; + pr "}\n\n"; + + pr "/**\n"; + pr " * guestfs_%s_new:\n" name; + pr " *\n"; + pr " * Create a new %s object\n" camel_name; + pr " *\n"; + pr " * Returns: (transfer full): a new %s object\n" camel_name; + pr " */\n"; + pr "%s *\n" camel_name; + pr "guestfs_%s_new(void)\n" name; + pr "{\n"; + pr " return GUESTFS_%s(g_object_new(%s, NULL));\n" uc_name type_define; + pr "}\n\n"; + +and generate_gobject_c_optargs () + pr "/* Optarg objects */\n\n"; + + iter_optargs ( + fun name optargs flags -> + generate_gobject_c_optarg name optargs flags + ) all_functions; + +and generate_gobject_c_methods () + pr "/* Generated methods */\n\n"; + + List.iter ( + fun (name, (ret, args, optargs as style), _, flags, _, shortdesc, longdesc) -> + let doc = pod2text ~width:60 name longdesc in + let doc = String.concat "\n * " doc in + let camel_name = camel_of_name flags name in + let is_RBufferOut = match ret with RBufferOut _ -> true | _ -> false in + let error_return = match ret with + | RErr -> + "FALSE" + | RInt _ | RInt64 _ | RBool _ -> + "-1" + | RConstString _ | RString _ | RStringList _ | RHashtable _ + | RBufferOut _ | RStruct _ | RStructList _ -> + "NULL" + | RConstOptString _ -> "" + in + + (* The comment header, including GI annotations for arguments and the + return value *) + + pr "/**\n"; + pr " * guestfs_session_%s:\n" name; + + List.iter ( + fun argt -> + pr " * @%s:" (name_of_argt argt); + (match argt with + | Bool _ | Int _ | Int64 _ -> () + | String _ | Key _ -> + pr " (transfer none) (type utf8):" + | OptString _ -> + pr " (transfer none) (type utf8) (allow-none):" + | Device _ | Pathname _ | Dev_or_Path _ | FileIn _ | FileOut _ -> + pr " (transfer none) (type filename):" + | StringList _ -> + pr " (transfer none) (array zero-terminated=1) (element-type utf8): an array of strings" + | DeviceList _ -> + pr " (transfer none) (array zero-terminated=1) (element-type filename): an array of strings" + | BufferIn n -> + pr " (transfer none) (array length=%s_size) (element-type guint8): an array of binary data" n + | Pointer _ -> + failwith "gobject bindings do not support Pointer arguments" + ); + pr "\n"; + ) args; + if optargs <> [] then + pr " * @optargs: (transfer none) (allow-none): a %s containing optional arguments\n" camel_name; + pr " *\n"; + + pr " * %s\n" shortdesc; + pr " *\n"; + pr " * %s\n" doc; + + pr " * Returns: "; + (match ret with + | RErr -> + pr "true on success, false on error" + | RInt _ | RInt64 _ | RBool _ -> + pr "the returned value, or -1 on error" + | RConstString _ -> + pr "(transfer none): the returned string, or NULL on error" + | RConstOptString _ -> + pr "(transfer none): the returned string. Note that NULL does not indicate error" + | RString _ -> + pr "(transfer full): the returned string, or NULL on error" + | RStringList _ -> + pr "(transfer full) (array zero-terminated=1) (element-type utf8): an array of returned strings, or NULL on error" + | RHashtable _ -> + pr "(transfer full) (element-type utf8 utf8): a GHashTable of results, or NULL on error" + | RBufferOut _ -> + pr "(transfer full) (array length=size_r) (element-type guint8): an array of binary data, or NULL on error" + | RStruct (_, typ) -> + let name = camel_name_of_struct typ in + pr "(transfer full): a %s object, or NULL on error" name + | RStructList (_, typ) -> + let name = camel_name_of_struct typ in + pr "(transfer full) (array zero-terminated=1) (element-type Guestfs%s): an array of %s objects, or NULL on error" name name + ); + pr "\n"; + pr " */\n"; + + (* The function body *) + + generate_gobject_proto ~single_line:false name style flags; + pr "\n{\n"; + + let cancellable + List.exists (function Cancellable -> true | _ -> false) flags + in + if cancellable then ( + pr " /* Check we haven't already been cancelled */\n"; + pr " if (g_cancellable_set_error_if_cancelled (cancellable, err))\n"; + pr " return %s;\n\n" error_return; + ); + + pr " guestfs_h *g = session->priv->g;\n"; + + (* Optargs *) + + if optargs <> [] then ( + pr " struct guestfs_%s_argv argv;\n" name; + pr " struct guestfs_%s_argv *argvp = NULL;\n\n" name; + + pr " if (optargs) {\n"; + let uc_prefix = "GUESTFS_" ^ String.uppercase name in + pr " argv.bitmask = 0;\n\n"; + let set_property name typ v_typ get_typ unset + let uc_name = String.uppercase name in + pr " GValue %s_v = {0, };\n" name; + pr " g_value_init(&%s_v, %s);\n" name v_typ; + pr " g_object_get_property(G_OBJECT(optargs), \"%s\", &%s_v);\n" name name; + pr " %s%s = g_value_get_%s(&%s_v);\n" typ name get_typ name; + pr " if (%s != %s) {\n" name unset; + pr " argv.bitmask |= %s_%s_BITMASK;\n" uc_prefix uc_name; + pr " argv.%s = %s;\n" name name; + pr " }\n" + in + List.iter ( + function + | OBool n -> + set_property n "GuestfsTristate " "GUESTFS_TYPE_TRISTATE" "enum" "GUESTFS_TRISTATE_NONE" + | OInt n -> + set_property n "gint32 " "G_TYPE_INT" "int" "-1" + | OInt64 n -> + set_property n "gint64 " "G_TYPE_INT64" "int64" "-1" + | OString n -> + set_property n "const gchar *" "G_TYPE_STRING" "string" "NULL" + ) optargs; + pr " argvp = &argv;\n"; + pr " }\n" + ); + + (* libguestfs call *) + + if cancellable then ( + pr " gulong id = 0;\n"; + pr " if (cancellable) {\n"; + pr " id = g_cancellable_connect(cancellable,\n"; + pr " G_CALLBACK(cancelled_handler),\n"; + pr " g, NULL);\n"; + pr " }\n\n"; + ); + + pr " "; + (match ret with + | RErr | RInt _ | RBool _ -> + pr "int " + | RInt64 _ -> + pr "int64_t " + | RConstString _ | RConstOptString _ -> + pr "const char *" + | RString _ | RBufferOut _ -> + pr "char *" + | RStringList _ | RHashtable _ -> + pr "char **" + | RStruct (_, typ) -> + pr "struct guestfs_%s *" typ + | RStructList (_, typ) -> + pr "struct guestfs_%s_list *" typ + ); + let suffix = if optargs <> [] then "_argv" else "" in + pr "ret = guestfs_%s%s(g" name suffix; + List.iter ( + fun argt -> + pr ", "; + match argt with + | BufferIn n -> + pr "%s, %s_size" n n + | Bool n | Int n | Int64 n | String n | Device n | Pathname n + | Dev_or_Path n | OptString n | StringList n | DeviceList n + | Key n | FileIn n | FileOut n -> + pr "%s" n + | Pointer _ -> + failwith "gobject bindings do not support Pointer arguments" + ) args; + if is_RBufferOut then pr ", size_r"; + if optargs <> [] then pr ", argvp"; + pr ");\n"; + + if cancellable then + pr " g_cancellable_disconnect(cancellable, id);\n"; + + (* Check return, throw error if necessary, marshall return value *) + + if returns_error ret then ( + pr " if (ret == %s) {\n" + (match ret with + | RErr | RInt _ | RInt64 _ | RBool _ -> + "-1" + | RConstString _ | RString _ | RStringList _ | RHashtable _ + | RBufferOut _ | RStruct _ | RStructList _ -> + "NULL" + | RConstOptString _ -> + assert false; + ); + pr " g_set_error_literal(err, GUESTFS_ERROR, 0, guestfs_last_error(g));\n"; + pr " return %s;\n" error_return; + pr " }\n"; + ); + pr "\n"; + + let gen_copy_struct indent src dst typ + let struct_name = "Guestfs" ^ camel_name_of_struct typ in + pr "%s%s *%s = g_slice_new(%s);\n" indent struct_name dst struct_name; + List.iter ( + function + | n, (FChar|FUInt32|FInt32|FUInt64|FBytes|FInt64|FOptPercent) -> + pr "%s%s->%s = %s%s;\n" indent dst n src n + | n, FUUID -> + pr "%smemcpy(%s->%s, %s%s, sizeof(%s->%s));\n" + indent dst n src n dst n + | n, FString -> + pr "%s%s->%s = g_strdup(%s%s);\n" indent dst n src n + | n, FBuffer -> + pr "%s%s->%s = %s%s;\n" indent dst n src n; + pr "%s%s->%s_size = %s%s_len;\n" indent dst n src n + ) (cols_of_struct typ) + in + (match ret with + | RErr -> + pr " return TRUE;\n" + + | RInt _ | RInt64 _ | RBool _ + | RConstString _ | RConstOptString _ + | RString _ | RStringList _ + | RBufferOut _ -> + pr " return ret;\n" + + | RHashtable _ -> + pr " GHashTable *h = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_free);\n"; + pr " char **i = ret;\n"; + pr " while (*i) {\n"; + pr " char *key = *i; i++;\n"; + pr " char *value = *i; i++;\n"; + pr " g_hash_table_insert(h, key, value);\n"; + pr " };\n"; + pr " g_free(ret);\n"; + pr " return h;\n" + + | RStruct (_, typ) -> + gen_copy_struct " " "ret->" "s" typ; + pr " guestfs_free_%s(ret);\n" typ; + pr " return s;\n"; + + | RStructList (_, typ) -> + let struct_name = "Guestfs" ^ camel_name_of_struct typ in + pr " %s **l = g_malloc(sizeof(%s*) * (ret->len + 1));\n" struct_name struct_name; + pr " gsize i;\n"; + pr " for(i = 0; i < ret->len; i++) {\n"; + gen_copy_struct " " "ret->val[i]." "s" typ; + pr " l[i] = s;\n"; + pr " }\n"; + pr " guestfs_free_%s_list(ret);\n" typ; + pr " l[i] = NULL;\n"; + pr " return l;\n"; + ); + + pr "}\n\n"; + ) all_functions; + +and generate_gobject_header () + generate_header CStyle GPLv2plus; + generate_gobject_header_static (); + generate_gobject_header_structs (); + generate_gobject_header_optargs (); + generate_gobject_header_methods (); + generate_gobject_header_static_footer (); + +and generate_gobject_c () + generate_header CStyle GPLv2plus; + generate_gobject_c_static (); + generate_gobject_c_structs (); + generate_gobject_c_optargs (); + generate_gobject_c_methods (); diff --git a/generator/generator_main.ml b/generator/generator_main.ml index 53a0f29..f1412a9 100644 --- a/generator/generator_main.ml +++ b/generator/generator_main.ml @@ -39,6 +39,7 @@ open Generator_haskell open Generator_csharp open Generator_php open Generator_erlang +open Generator_gobject open Generator_bindtests open Generator_errnostring @@ -136,6 +137,8 @@ Run it from the top source directory using the command output_to "php/extension/guestfs_php.c" generate_php_c; output_to "erlang/guestfs.erl" generate_erlang_erl; output_to "erlang/erl-guestfs.c" generate_erlang_c; + output_to "gobject/guestfs-gobject.h" generate_gobject_header; + output_to "gobject/guestfs-gobject.c" generate_gobject_c; (* Generate the list of files generated -- last. *) printf "generated %d lines of code\n" (get_lines_generated ()); diff --git a/gobject/Makefile.am b/gobject/Makefile.am new file mode 100644 index 0000000..6543ca8 --- /dev/null +++ b/gobject/Makefile.am @@ -0,0 +1,41 @@ +BUILT_SOURCES = guestfs-gobject.h guestfs-gobject.c +EXTRA_DIST = $(BUILT_SOURCES) + +libname = libguestfs-gobject-1.0.la + +lib_LTLIBRARIES = $(libname) + +libguestfs_gobject_1_0_ladir = $(includedir) + +libguestfs_gobject_1_0_la_HEADERS = guestfs-gobject.h +libguestfs_gobject_1_0_la_SOURCES = guestfs-gobject.c +libguestfs_gobject_1_0_la_CFLAGS = -I$(top_srcdir)/src $(GOBJECT_CFLAGS) +libguestfs_gobject_1_0_la_LIBS = $(GOBJECT_LIBS) +libguestfs_gobject_1_0_la_LDFLAGS = $(LDFLAGS) -L$(top_builddir)/src +libguestfs_gobject_1_0_la_LIBADD = -lguestfs + +-include $(INTROSPECTION_MAKEFILE) +INTROSPECTION_GIRS +INTROSPECTION_SCANNER_ARGS = --add-include-path=$(srcdir) --warn-all +INTROSPECTION_COMPILER_ARGS = --includedir=$(srcdir) + +if HAVE_INTROSPECTION +introspection_sources = \ + $(libguestfs_gobject_1_0_la_HEADERS) \ + $(libguestfs_gobject_1_0_la_SOURCES) + +Guestfs-1.0.gir: $(libname) +Guestfs_1_0_gir_INCLUDES = GObject-2.0 Gio-2.0 +Guestfs_1_0_gir_CFLAGS = $(INCLUDES) +Guestfs_1_0_gir_LIBS = $(libname) +Guestfs_1_0_gir_FILES = $(introspection_sources) +INTROSPECTION_GIRS += Guestfs-1.0.gir + +girdir = $(datadir)/gir-1.0 +gir_DATA = $(INTROSPECTION_GIRS) + +typelibdir = $(libdir)/girepository-1.0 +typelib_DATA = $(INTROSPECTION_GIRS:.gir=.typelib) + +CLEANFILES = $(gir_DATA) $(typelib_DATA) +endif diff --git a/m4/introspection.m4 b/m4/introspection.m4 new file mode 100644 index 0000000..bfc52be --- /dev/null +++ b/m4/introspection.m4 @@ -0,0 +1,94 @@ +dnl -*- mode: autoconf -*- +dnl Copyright 2009 Johan Dahlin +dnl +dnl This file is free software; the author(s) gives unlimited +dnl permission to copy and/or distribute it, with or without +dnl modifications, as long as this notice is preserved. +dnl + +# serial 1 + +m4_define([_GOBJECT_INTROSPECTION_CHECK_INTERNAL], +[ + AC_BEFORE([AC_PROG_LIBTOOL],[$0])dnl setup libtool first + AC_BEFORE([AM_PROG_LIBTOOL],[$0])dnl setup libtool first + AC_BEFORE([LT_INIT],[$0])dnl setup libtool first + + dnl enable/disable introspection + m4_if([$2], [require], + [dnl + enable_introspection=yes + ],[dnl + AC_ARG_ENABLE(introspection, + AS_HELP_STRING([--enable-introspection[=@<:@no/auto/yes@:>@]], + [Enable introspection for this build]),, + [enable_introspection=auto]) + ])dnl + + AC_MSG_CHECKING([for gobject-introspection]) + + dnl presence/version checking + AS_CASE([$enable_introspection], + [no], [dnl + found_introspection="no (disabled, use --enable-introspection to enable)" + ],dnl + [yes],[dnl + PKG_CHECK_EXISTS([gobject-introspection-1.0],, + AC_MSG_ERROR([gobject-introspection-1.0 is not installed])) + PKG_CHECK_EXISTS([gobject-introspection-1.0 >= $1], + found_introspection=yes, + AC_MSG_ERROR([You need to have gobject-introspection >= $1 installed to build AC_PACKAGE_NAME])) + ],dnl + [auto],[dnl + PKG_CHECK_EXISTS([gobject-introspection-1.0 >= $1], found_introspection=yes, found_introspection=no) + ],dnl + [dnl + AC_MSG_ERROR([invalid argument passed to --enable-introspection, should be one of @<:@no/auto/yes@:>@]) + ])dnl + + AC_MSG_RESULT([$found_introspection]) + + INTROSPECTION_SCANNER+ INTROSPECTION_COMPILER+ INTROSPECTION_GENERATE+ INTROSPECTION_GIRDIR+ INTROSPECTION_TYPELIBDIR+ if test "x$found_introspection" = "xyes"; then + INTROSPECTION_SCANNER=`$PKG_CONFIG --variable=g_ir_scanner gobject-introspection-1.0` + INTROSPECTION_COMPILER=`$PKG_CONFIG --variable=g_ir_compiler gobject-introspection-1.0` + INTROSPECTION_GENERATE=`$PKG_CONFIG --variable=g_ir_generate gobject-introspection-1.0` + INTROSPECTION_GIRDIR=`$PKG_CONFIG --variable=girdir gobject-introspection-1.0` + INTROSPECTION_TYPELIBDIR="$($PKG_CONFIG --variable=typelibdir gobject-introspection-1.0)" + INTROSPECTION_CFLAGS=`$PKG_CONFIG --cflags gobject-introspection-1.0` + INTROSPECTION_LIBS=`$PKG_CONFIG --libs gobject-introspection-1.0` + INTROSPECTION_MAKEFILE=`$PKG_CONFIG --variable=datadir gobject-introspection-1.0`/gobject-introspection-1.0/Makefile.introspection + fi + AC_SUBST(INTROSPECTION_SCANNER) + AC_SUBST(INTROSPECTION_COMPILER) + AC_SUBST(INTROSPECTION_GENERATE) + AC_SUBST(INTROSPECTION_GIRDIR) + AC_SUBST(INTROSPECTION_TYPELIBDIR) + AC_SUBST(INTROSPECTION_CFLAGS) + AC_SUBST(INTROSPECTION_LIBS) + AC_SUBST(INTROSPECTION_MAKEFILE) + + AM_CONDITIONAL(HAVE_INTROSPECTION, test "x$found_introspection" = "xyes") +]) + + +dnl Usage: +dnl GOBJECT_INTROSPECTION_CHECK([minimum-g-i-version]) + +AC_DEFUN([GOBJECT_INTROSPECTION_CHECK], +[ + _GOBJECT_INTROSPECTION_CHECK_INTERNAL([$1]) +]) + +dnl Usage: +dnl GOBJECT_INTROSPECTION_REQUIRE([minimum-g-i-version]) + + +AC_DEFUN([GOBJECT_INTROSPECTION_REQUIRE], +[ + _GOBJECT_INTROSPECTION_CHECK_INTERNAL([$1], [require]) +]) diff --git a/po/POTFILES.in b/po/POTFILES.in index 380a3c7..14e8545 100644 --- a/po/POTFILES.in +++ b/po/POTFILES.in @@ -126,6 +126,7 @@ fish/time.c fish/virt.c fuse/dircache.c fuse/guestmount.c +gobject/guestfs-gobject.c inspector/virt-inspector.c java/com_redhat_et_libguestfs_GuestFS.c ocaml/guestfs_c.c -- 1.7.7.5
Matthew Booth
2012-Jan-17 15:48 UTC
[Libguestfs] [PATCH 2/2] run script: Add support for gobject introspection
--- run.in | 12 +++++++++--- 1 files changed, 9 insertions(+), 3 deletions(-) diff --git a/run.in b/run.in index 7cef715..afb2b97 100755 --- a/run.in +++ b/run.in @@ -37,19 +37,25 @@ b=@abs_builddir@ export TMPDIR="$b" # Set local environment relative to this script. +library_path="$b/src/.libs:$b/gobject/.libs" if [ -z "$LD_LIBRARY_PATH" ]; then - LD_LIBRARY_PATH="$b/src/.libs" + LD_LIBRARY_PATH=$library_path else - LD_LIBRARY_PATH="$b/src/.libs:$LD_LIBRARY_PATH" + LD_LIBRARY_PATH="$library_path:$LD_LIBRARY_PATH" fi if [ -z "$PERL5LIB" ]; then PERL5LIB="$b/perl/blib/lib:$b/perl/blib/arch" else PERL5LIB="$b/perl/blib/lib:$b/perl/blib/arch:$PERL5LIB" fi +if [ -z "$GI_TYPELIB_PATH" ]; then + GI_TYPELIB_PATH="$b/gobject" +else + GI_TYPELIB_PATH="$b/gobject:$GI_TYPELIB_PATH" +fi LIBGUESTFS_PATH="$b/appliance" -export LD_LIBRARY_PATH PERL5LIB LIBGUESTFS_PATH +export LD_LIBRARY_PATH PERL5LIB GI_TYPELIB_PATH LIBGUESTFS_PATH # Do we have libtool? If we have it then we can use it to make # running valgrind simpler. However don't depend on it. -- 1.7.7.5
On Tue, Jan 17, 2012 at 03:48:41PM +0000, Matthew Booth wrote:> This is the first iteration of the GObject bindings. I have 'kicked the tyres' > on these, meaning I have ensured that a bunch of basic manual tests work as > expected. I'm in the process of adding more comprehensive tests. > > Here's an example simple javascript program which uses these bindings: > > ==> const Guestfs = imports.gi.Guestfs; > > print('Starting'); > var g = new Guestfs.Session(); > > var o = new Guestfs.AddDriveOpts({format: 'raw', iface: 'virtio'}); > g.add_drive_opts('tests/guests/fedora.img', null); > g.launch(); > > r = g.inspect_os(); > m = g.inspect_get_mountpoints(r[0]); > print(m['/boot']); > > print('Finished'); > ==> > Run this file as ./run gjs gobject-test.jsSince this is a brand new feature, I have no objection to integrating this into libguestfs right away (provided it compiles!) However, if we are going to do this, it would be nicer if the gobject bindings could be explicitly disabled in configure, ie: ./configure --disable-gobject so that if they cause problems in Fedora/Debian/other distros, the packager can disable them until they get fixed. Note that most (all?) other language bindings can be disabled in this manner. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming blog: http://rwmj.wordpress.com Fedora now supports 80 OCaml packages (the OPEN alternative to F#) http://cocan.org/getting_started_with_ocaml_on_red_hat_and_fedora
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