search for: virconnectclose

The documentation says something that concerns me: http://libvirt.org/html/libvirt-libvirt.html#virConnectClose "It is possible for the last virConnectClose<http://libvirt.org/html/libvirt-libvirt.html#virConnectClose>to return a positive value if some other object still has a temporary reference to the connection, but the application should not try to further use a connecti...

libvirt version: 3.4.0 When invoke virConnectDomainEventRegisteAny register event on a hypervisor connection, before virConnecClose, should I invoke virConnectDomainEventDeregisterAny. If a hypervisor connection close unexpected, call virConnectDomainEventDeregisterAny will return error? Can tell me more detail about event? This libvirt doc not more description. Thanks

...47.297+0000: 2669: debug : virNetMessageFree:73 : msg=0x10087500 nfds=0 cb=(nil) 2013-04-09 03:23:47.297+0000: 2670: debug : virEventPollDispatchHandles:470 : Dispatch 1 2013-04-09 03:23:47.297+0000: 2670: debug : virEventPollDispatchHandles:484 : i=0 w=1 2013-04-09 03:23:47.297+0000: 2669: debug : virConnectClose:1483 : conn=0x100878b8 <cut> 2) libvirt-1.0.4 <cut> 2013-04-09 03:07:58.012+0000: 2834: debug : virEventPollInterruptLocked:716 : Interrupting 2013-04-09 03:07:58.012+0000: 2834: debug : virNetClientIO:1810 : All done with our call head=(nil) call=0x10089db8 rv=0 2013-04-09 03:07:58.01...

...gt; @@ -49,6 +50,39 @@ #define ERROR_MESSAGE_LEN 512 +/* Wrap and unwrap virConnectPtr, with a finalizer. */ +#define Libvirtconn_val(rv) (*(virConnectPtr *)Data_custom_val(rv)) + +static void +libvirtconn_finalize (value rev) +{ + virConnectPtr conn = Libvirtconn_val (rev); + if (conn) + virConnectClose (conn); +} + +static struct custom_operations custom_operations = { + (char *) "libvirtconn_custom_operations", + libvirtconn_finalize, + custom_compare_default, + custom_hash_default, + custom_serialize_default, + custom_deserialize_default +}; + +static value +Val_libvirtconn (vir...

...find libvirt pool ‘%s’: %s\n\nUse ‘virsh pool-list --all’ to list all available pools, and ‘virsh pool-dumpxml <pool>’ to display details about a particular pool.\n\nTo set the pool which virt-v2v uses, add the ‘-os <pool>’ option."), - poolname, err->message); - virConnectClose (conn); - caml_invalid_argument (errmsg); - } - - CAMLreturnT (virStoragePoolPtr, pool); -} - -value -v2v_dumpxml (value passwordv, value connv, value domnamev) -{ - CAMLparam3 (passwordv, connv, domnamev); - CAMLlocal1 (retv); - const char *password = NULL; - const char *conn_uri = NULL;...

...gnore errors; setting it to NULL - * restores the default error handler ... - */ - virConnSetErrorFunc (conn, NULL, ignore_errors); - - capabilities_xml = virConnectGetCapabilities (conn); - if (!capabilities_xml) { - libvirt_error (_("could not get libvirt capabilities")); - virConnectClose (conn); - return; - } - - /* Parse the capabilities XML with libxml2. */ - doc = xmlReadMemory (capabilities_xml, strlen (capabilities_xml), - NULL, NULL, XML_PARSE_NONET); - if (doc == NULL) { - fprintf (stderr, - _("%s: unable to parse capabilities...

I have a CIM provider that just calls virConnectOpen("qemu:///system"); and virConnectClose(). When cimom unloads this provider segfaults - #0 0x000000305b420cd0 in ?? () (gdb) bt #0 0x000000305b420cd0 in ?? () #1 0x00000031a3e05ad9 in __nptl_deallocate_tsd () from /lib64/libpthread.so.0 #2 0x00000031a3e0674b in start_thread () from /lib64/libpthread.so.0 #3 0x00000031a32d3d1d in cl...

...#include "libvirt/libvirt.h" int main(int argc,char **argv) { virConnectPtr conn; conn = virConnectOpen("qemu+tcp://192.168.1.6/system"); if (conn = NULL) { fprintf(stderr,"Failed to open connection to qemu+tcp://192.168.1.6/system"); return 1; } virConnectClose(conn); return 0; } When linked to the dll just compiled , it came out with error : NOTE: you should run 'diskperf -y' to enable the disk statistics libvir: RPC error : Unable to set close-on-exec flag: No such file or directory libvir: error : invalid connection pointer in virConnectC...

...to reliably maintain a connection to libvirtd. From the documentation, I would expect something like that: - virConnectOpen() - virConnectRegisterCloseCallback() - virConnectSetKeepAlive() - Application logic And in the registered callback, I would: - virConnectUnregisterCloseCallback() - virConnectClose() - virConnectOpen() - virConnectRegisterCloseCallback() - virConnectSetKeepAlive() However, looking at the source code of virsh, I see that it additional stuff, notably: - virConnectIsAlive() - checking error codes of all calls to check if they are the result of a disconnect Are those s...

https://bugzilla.redhat.com/show_bug.cgi?id=889082

...Y_GRACEFUL" : "0"); - if (virDomainDestroyFlags (dom, flags) == -1) { - libvirt_error (g, _("could not destroy libvirt domain")); - ret = -1; - } + ret = destroy_domain (g, dom, check_for_errors); virDomainFree (dom); } - if (conn != NULL) virConnectClose (conn); @@ -2068,6 +2062,37 @@ shutdown_libvirt (guestfs_h *g, void *datav, int check_for_errors) return ret; } +/* Wrapper around virDomainDestroy which handles errors and retries.. */ +static int +destroy_domain (guestfs_h *g, virDomainPtr dom, int check_for_errors) +{ + const int flags...

...&attr, PTHREAD_CREATE_JOINABLE); for (i = 0 ; i < count ; ++i) { pthread_create(&threads[i], &attr, create_and_destroy, (void *)doms[i]); } pthread_attr_destroy(&attr); for (i = 0 ; i < count ; ++i) { pthread_join(threads[i], NULL); } virConnectClose(conn); pthread_exit(NULL); } /************************************************/ Here is the output of the program with 2 defined domains: > libvir: VBOX error : operation failed: OpenRemoteSession/LaunchVMProcess failed, domain can't be started > failed to start c538c89a-70da-42ab-a...

v1 -> v2: - Support for passing topology through -o glance. - Support for passing topology through -o rhv. - Use bool for acpi/apic/pae struct fields in virt-p2v. - Write the xpath expression in error messages instead of file/line. - Fix more memory leaks in virt-p2v cpuid.c. - Passes make check & check-valgrind. There may be some other minor changes. I believe that everything

...GetType(connection); + if (hv != NULL) + management_object->set_hypervisor(hv); + ret = virNodeGetInfo(connection, &info); + if (ret == 0) { + management_object->set_arch(info.model); + management_object->set_memory(info.memory); + } } + virConnectClose(connection); - output << "End Node" << endl; - return output; -} + management_object->set_beeping(false); -void HostWrapper::doLoop(void) -{ - // Someday we might update statistics too! - while(1) + // setup the nic objects + for(vector<NICWrappe...

..."%s/console.sock", g->tmpdir); - unlink (data->console_path); console_sock = socket (AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0); if (console_sock == -1) { @@ -2027,6 +2025,16 @@ shutdown_libvirt (guestfs_h *g, void *datav, int check_for_errors) if (conn != NULL) virConnectClose (conn); + if (data->guestfsd_path[0] != '\0') { + unlink (data->guestfsd_path); + data->guestfsd_path[0] = '\0'; + } + + if (data->console_path[0] != '\0') { + unlink (data->console_path); + data->console_path[0] = '\0'; + } + d...

...bvirtd. From the documentation, I would expect something like that: > > - virConnectOpen() > - virConnectRegisterCloseCallback() > - virConnectSetKeepAlive() > - Application logic > >And in the registered callback, I would: > > - virConnectUnregisterCloseCallback() > - virConnectClose() > - virConnectOpen() > - virConnectRegisterCloseCallback() > - virConnectSetKeepAlive() > >However, looking at the source code of virsh, I see that it additional >stuff, notably: > > - virConnectIsAlive() > - checking error codes of all calls to check if they are the re...

..."<os><type>hvm</type> </os>" "</domain>"); assert(dom != NULL); assert(virDomainCreate(dom) != -1); virDomainFree(dom); assert(virConnectDomainEventDeregisterAny(conn, cbid) != -1); if (virConnectClose(conn) > 0 ) { printf("leak...\n"); } usleep(100000); return 0; } #+end_src Running this program in an infinite loop triggers the bug in less than 1 second (most of the time, just after displaying "leak..."). I am using libvirt 2.0.0 (in Debian). I have a...

...rk delete 8 14 17:07:55.893: debug : virEventInterruptLocked:635 : Skip interrupt, 1 -793020736 17:07:55.893: debug : qemudDispatchClientFailure:1407 : Deregistering to relay remote events 17:07:55.893: debug : virConnectDomainEventDeregister:7760 : conn=0xe60c3a0, cb=0x4143d0 17:07:55.893: debug : virConnectClose:1171 : conn=0xe60c3a0 17:07:55.893: debug : virUnrefConnect:210 : unref connection 0xe60c3a0 1 17:07:55.893: debug : virReleaseConnect:171 : release connection 0xe60c3a0 17:07:55.893: debug : virEventMakePollFDs:364 : Prepare n=0 w=1, f=5 e=1 17:07:55.893: debug : virEventMakePollFDs:364 : Prepare...

...irDomainDestroyFlags (dom, flags) == -1) { > - libvirt_error (g, _("could not destroy libvirt domain")); > - ret = -1; > - } > + ret = destroy_domain (g, dom, check_for_errors); > virDomainFree (dom); > } > - > if (conn != NULL) > virConnectClose (conn); > > @@ -2068,6 +2062,37 @@ shutdown_libvirt (guestfs_h *g, void *datav, int check_for_errors) > return ret; > } > > +/* Wrapper around virDomainDestroy which handles errors and retries.. */ > +static int > +destroy_domain (guestfs_h *g, virDomainPtr dom, int...

...37:18.673: debug : virDomainFree:2062 : domain=0x95dad48 11:37:18.673: debug : virUnrefDomain:422 : unref domain 0x95dad48 tty 1 11:37:18.673: debug : virReleaseDomain:376 : release domain 0x95dad48 tty 11:37:18.673: debug : virReleaseDomain:392 : unref connection 0x95a1910 2 11:37:18.673: debug : virConnectClose:1355 : conn=0x95a1910 11:37:18.673: debug : virUnrefConnect:259 : unref connection 0x95a1910 1 11:37:18.673: debug : vboxNetworkClose:5448 : network uninitialized 11:37:18.673: debug : vboxStorageClose:6200 : vbox storage uninitialized 11:37:18.673: debug : vboxClose:843 : VBOX: in vboxClose 11:37:...