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[libvirt] [PATCH] Fix initialization mismatch
by john.levon＠sun.com 16 Dec '08

16 Dec '08

# HG changeset patch # User john.levon(a)sun.com # Date 1229369743 28800 # Node ID 16ceb6f2e00c4639e97440723e57ec0be6d12cd9 # Parent ead0d1c1d3adacf478db05ee8d6abe270c96c5da Fix initialization mismatch Make driver open routines correctly declare their return type. Signed-off-by: John Levon <john.levon(a)sun.com> diff --git a/src/proxy_internal.c b/src/proxy_internal.c --- a/src/proxy_internal.c +++ b/src/proxy_internal.c @@ -36,7 +36,7 @@ static int debug = 0; static int debug = 0; static int xenProxyClose(virConnectPtr conn); -static int xenProxyOpen(virConnectPtr conn, virConnectAuthPtr auth, int flags); +static virDrvOpenStatus xenProxyOpen(virConnectPtr conn, virConnectAuthPtr auth, int flags); static int xenProxyGetVersion(virConnectPtr conn, unsigned long *hvVer); static int xenProxyNodeGetInfo(virConnectPtr conn, virNodeInfoPtr info); static char *xenProxyGetCapabilities(virConnectPtr conn); @@ -477,7 +477,7 @@ retry: * * Returns 0 in case of success, and -1 in case of failure */ -int +virDrvOpenStatus xenProxyOpen(virConnectPtr conn, virConnectAuthPtr auth ATTRIBUTE_UNUSED, int flags) diff --git a/src/remote_internal.c b/src/remote_internal.c --- a/src/remote_internal.c +++ b/src/remote_internal.c @@ -851,7 +851,7 @@ doRemoteOpen (virConnectPtr conn, goto cleanup; } -static int +static virDrvOpenStatus remoteOpen (virConnectPtr conn, virConnectAuthPtr auth, int flags) @@ -2633,7 +2633,7 @@ remoteDomainMemoryPeek (virDomainPtr dom /*----------------------------------------------------------------------*/ -static int +static virDrvOpenStatus remoteNetworkOpen (virConnectPtr conn, virConnectAuthPtr auth, int flags) @@ -3033,7 +3033,7 @@ remoteNetworkSetAutostart (virNetworkPtr /*----------------------------------------------------------------------*/ -static int +static virDrvOpenStatus remoteStorageOpen (virConnectPtr conn, virConnectAuthPtr auth, int flags) diff --git a/src/test.c b/src/test.c --- a/src/test.c +++ b/src/test.c @@ -634,7 +634,7 @@ static int testOpenFromFile(virConnectPt } -static int testOpen(virConnectPtr conn, +static virDrvOpenStatus testOpen(virConnectPtr conn, virConnectAuthPtr auth ATTRIBUTE_UNUSED, int flags ATTRIBUTE_UNUSED) { diff --git a/src/xen_inotify.c b/src/xen_inotify.c --- a/src/xen_inotify.c +++ b/src/xen_inotify.c @@ -347,7 +347,7 @@ reread: * * Returns 0 or -1 in case of error. */ -int +virDrvOpenStatus xenInotifyOpen(virConnectPtr conn ATTRIBUTE_UNUSED, virConnectAuthPtr auth ATTRIBUTE_UNUSED, int flags ATTRIBUTE_UNUSED) diff --git a/src/xen_inotify.h b/src/xen_inotify.h --- a/src/xen_inotify.h +++ b/src/xen_inotify.h @@ -21,10 +21,13 @@ */ #ifndef __VIR_XEN_INOTIFY_H__ #define __VIR_XEN_INOTIFY_H__ + #include "internal.h" +#include "driver.h" + extern struct xenUnifiedDriver xenInotifyDriver; -int xenInotifyOpen (virConnectPtr conn, +virDrvOpenStatus xenInotifyOpen (virConnectPtr conn, virConnectAuthPtr auth, int flags); int xenInotifyClose (virConnectPtr conn); diff --git a/src/xen_internal.c b/src/xen_internal.c --- a/src/xen_internal.c +++ b/src/xen_internal.c @@ -2031,7 +2031,7 @@ xenHypervisorInit(void) * * Returns 0 or -1 in case of error. */ -int +virDrvOpenStatus xenHypervisorOpen(virConnectPtr conn, virConnectAuthPtr auth ATTRIBUTE_UNUSED, int flags ATTRIBUTE_UNUSED) diff --git a/src/xen_internal.h b/src/xen_internal.h --- a/src/xen_internal.h +++ b/src/xen_internal.h @@ -15,6 +15,7 @@ #include "internal.h" #include "capabilities.h" +#include "driver.h" extern struct xenUnifiedDriver xenHypervisorDriver; int xenHypervisorInit (void); @@ -32,7 +33,8 @@ char * char * xenHypervisorDomainGetOSType (virDomainPtr dom); -int xenHypervisorOpen (virConnectPtr conn, +virDrvOpenStatus + xenHypervisorOpen (virConnectPtr conn, virConnectAuthPtr auth, int flags); int xenHypervisorClose (virConnectPtr conn); diff --git a/src/xen_unified.c b/src/xen_unified.c --- a/src/xen_unified.c +++ b/src/xen_unified.c @@ -224,7 +224,7 @@ xenUnifiedProbe (void) return 0; } -static int +static virDrvOpenStatus xenUnifiedOpen (virConnectPtr conn, virConnectAuthPtr auth, int flags) { int i, ret = VIR_DRV_OPEN_DECLINED; diff --git a/src/xend_internal.c b/src/xend_internal.c --- a/src/xend_internal.c +++ b/src/xend_internal.c @@ -2704,7 +2704,7 @@ error: * * Returns 0 in case of success, -1 in case of error. */ -int +virDrvOpenStatus xenDaemonOpen(virConnectPtr conn, virConnectAuthPtr auth ATTRIBUTE_UNUSED, int flags ATTRIBUTE_UNUSED) diff --git a/src/xend_internal.h b/src/xend_internal.h --- a/src/xend_internal.h +++ b/src/xend_internal.h @@ -24,6 +24,7 @@ #include "internal.h" #include "capabilities.h" #include "domain_conf.h" +#include "driver.h" #include "buf.h" int @@ -129,7 +130,7 @@ xenDaemonFormatSxpr(virConnectPtr conn, /* refactored ones */ -int xenDaemonOpen(virConnectPtr conn, virConnectAuthPtr auth, int flags); +virDrvOpenStatus xenDaemonOpen(virConnectPtr conn, virConnectAuthPtr auth, int flags); int xenDaemonClose(virConnectPtr conn); int xenDaemonGetVersion(virConnectPtr conn, unsigned long *hvVer); int xenDaemonNodeGetInfo(virConnectPtr conn, virNodeInfoPtr info); diff --git a/src/xm_internal.c b/src/xm_internal.c --- a/src/xm_internal.c +++ b/src/xm_internal.c @@ -581,7 +581,7 @@ int xenXMConfigCacheRefresh (virConnectP * We only support a single directory, so repeated calls * to open all end up using the same cache of files */ -int +virDrvOpenStatus xenXMOpen (virConnectPtr conn ATTRIBUTE_UNUSED, virConnectAuthPtr auth ATTRIBUTE_UNUSED, int flags ATTRIBUTE_UNUSED) diff --git a/src/xm_internal.h b/src/xm_internal.h --- a/src/xm_internal.h +++ b/src/xm_internal.h @@ -26,6 +26,7 @@ #define _LIBVIRT_XM_INTERNAL_H_ #include "internal.h" +#include "driver.h" #include "conf.h" #include "domain_conf.h" @@ -38,7 +39,7 @@ int xenXMConfigCacheAddFile(virConnectPt int xenXMConfigCacheAddFile(virConnectPtr conn, const char *filename); int xenXMConfigCacheRemoveFile(virConnectPtr conn, const char *filename); -int xenXMOpen(virConnectPtr conn, virConnectAuthPtr auth, int flags); +virDrvOpenStatus xenXMOpen(virConnectPtr conn, virConnectAuthPtr auth, int flags); int xenXMClose(virConnectPtr conn); const char *xenXMGetType(virConnectPtr conn); int xenXMDomainGetInfo(virDomainPtr domain, virDomainInfoPtr info); diff --git a/src/xs_internal.c b/src/xs_internal.c --- a/src/xs_internal.c +++ b/src/xs_internal.c @@ -281,7 +281,7 @@ virDomainGetVMInfo(virDomainPtr domain, * * Returns 0 or -1 in case of error. */ -int +virDrvOpenStatus xenStoreOpen(virConnectPtr conn, virConnectAuthPtr auth ATTRIBUTE_UNUSED, int flags ATTRIBUTE_UNUSED) diff --git a/src/xs_internal.h b/src/xs_internal.h --- a/src/xs_internal.h +++ b/src/xs_internal.h @@ -12,11 +12,12 @@ #define __VIR_XS_INTERNAL_H__ #include "internal.h" +#include "driver.h" extern struct xenUnifiedDriver xenStoreDriver; int xenStoreInit (void); -int xenStoreOpen (virConnectPtr conn, +virDrvOpenStatus xenStoreOpen (virConnectPtr conn, virConnectAuthPtr auth, int flags); int xenStoreClose (virConnectPtr conn);

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[libvirt] [PATCH] Cast callbacks to the correct type
by john.levon＠sun.com 16 Dec '08

16 Dec '08

# HG changeset patch # User john.levon(a)sun.com # Date 1229367890 28800 # Node ID 728f90c86f2cd950463923c80fc57754d6e762eb # Parent 6a8e82d7d2e166880fed8d7ad860a3e2e93d62be Cast callbacks to the correct type Avoid compiler warnings by performing the correct casts. Signed-off-by: John Levon <john.levon(a)sun.com> diff --git a/src/libvirt.c b/src/libvirt.c --- a/src/libvirt.c +++ b/src/libvirt.c @@ -5806,7 +5806,8 @@ virConnectDomainEventRegister(virConnect } if ((conn->driver) && (conn->driver->domainEventRegister)) - return conn->driver->domainEventRegister (conn, cb, opaque, freecb); + return conn->driver->domainEventRegister (conn, (void *)cb, + opaque, freecb); return -1; } @@ -5835,9 +5836,9 @@ virConnectDomainEventDeregister(virConne return (-1); } if ((conn->driver) && (conn->driver->domainEventDeregister)) - return conn->driver->domainEventDeregister (conn, cb); - - return -1; -} - - + return conn->driver->domainEventDeregister (conn, (void *)cb); + + return -1; +} + + diff --git a/src/remote_internal.c b/src/remote_internal.c --- a/src/remote_internal.c +++ b/src/remote_internal.c @@ -4735,7 +4735,7 @@ static int remoteDomainEventRegister (vi return -1; } if (virDomainEventCallbackListAdd(conn, priv->callbackList, - callback, opaque, freecb) < 0) { + (virConnectDomainEventCallback)callback, opaque, freecb) < 0) { error (conn, VIR_ERR_RPC, _("adding cb to list")); return -1; } @@ -4757,7 +4757,7 @@ static int remoteDomainEventDeregister ( struct private_data *priv = conn->privateData; if (virDomainEventCallbackListRemove(conn, priv->callbackList, - callback) < 0) { + (virConnectDomainEventCallback)callback) < 0) { error (conn, VIR_ERR_RPC, _("removing cb fron list")); return -1; } diff --git a/src/xen_unified.c b/src/xen_unified.c --- a/src/xen_unified.c +++ b/src/xen_unified.c @@ -1372,7 +1372,7 @@ xenUnifiedDomainEventRegister (virConnec conn->refs++; return virDomainEventCallbackListAdd(conn, priv->domainEventCallbacks, - callback, opaque, freefunc); + (virConnectDomainEventCallback)callback, opaque, freefunc); } static int @@ -1387,7 +1387,7 @@ xenUnifiedDomainEventDeregister (virConn } ret = virDomainEventCallbackListRemove(conn, priv->domainEventCallbacks, - callback); + (virConnectDomainEventCallback)callback); virUnrefConnect(conn); return ret; }

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[libvirt] [PATCH] Remove _PATH_DEVNULL usage
by john.levon＠sun.com 16 Dec '08

16 Dec '08

# HG changeset patch # User john.levon(a)sun.com # Date 1229367890 28800 # Node ID c324c231c6a50be9f970f0f6c6d1629a7c09ab3b # Parent 63174fd9f33749cb68431fd5d1ff6133ba48863b Remove _PATH_DEVNULL usage _PATH_DEVNULL provides no apparent advantage, and isn't available on Solaris: replace with the string literal. Signed-off-by: John Levon <john.levon(a)sun.com> diff --git a/qemud/qemud.c b/qemud/qemud.c --- a/qemud/qemud.c +++ b/qemud/qemud.c @@ -397,9 +397,9 @@ static int qemudGoDaemon(void) { int stdoutfd = -1; int nextpid; - if ((stdinfd = open(_PATH_DEVNULL, O_RDONLY)) < 0) + if ((stdinfd = open("/dev/null", O_RDONLY)) < 0) goto cleanup; - if ((stdoutfd = open(_PATH_DEVNULL, O_WRONLY)) < 0) + if ((stdoutfd = open("/dev/null", O_WRONLY)) < 0) goto cleanup; if (dup2(stdinfd, STDIN_FILENO) != STDIN_FILENO) goto cleanup; diff --git a/src/util.c b/src/util.c --- a/src/util.c +++ b/src/util.c @@ -205,10 +205,10 @@ __virExec(virConnectPtr conn, return -1; } - if ((null = open(_PATH_DEVNULL, O_RDONLY)) < 0) { + if ((null = open("/dev/null", O_RDONLY)) < 0) { ReportError(conn, VIR_ERR_INTERNAL_ERROR, _("cannot open %s: %s"), - _PATH_DEVNULL, strerror(errno)); + "/dev/null", strerror(errno)); goto cleanup; } diff --git a/tests/testutils.c b/tests/testutils.c --- a/tests/testutils.c +++ b/tests/testutils.c @@ -35,10 +35,6 @@ #ifdef HAVE_PATHS_H #include <paths.h> -#endif - -#ifndef _PATH_DEVNULL -#define _PATH_DEVNULL "/dev/null" #endif #define GETTIMEOFDAY(T) gettimeofday(T, NULL) @@ -157,9 +153,9 @@ void virtTestCaptureProgramExecChild(con NULL }; - if ((stdinfd = open(_PATH_DEVNULL, O_RDONLY)) < 0) - goto cleanup; - if ((stderrfd = open(_PATH_DEVNULL, O_WRONLY)) < 0) + if ((stdinfd = open("/dev/null", O_RDONLY)) < 0) + goto cleanup; + if ((stderrfd = open("/dev/null", O_WRONLY)) < 0) goto cleanup; open_max = sysconf (_SC_OPEN_MAX);

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[libvirt] [PATCH] Remove non-existent symbols from the version script
by john.levon＠sun.com 16 Dec '08

16 Dec '08

# HG changeset patch # User john.levon(a)sun.com # Date 1229369745 28800 # Node ID d3e5c2e138bd794ab711cc2548c45112ba603ea2 # Parent 56d77e29bf90057791feebfa47506fc0933cd690 Remove non-existent symbols from the version script The Solaris linker rightfully complains if a non-existent symbol is referenced. Since these symbols don't exist in the current source, they can have no purpose in a version script, so remove them. Signed-off-by: John Levon <john.levon(a)sun.com> diff --git a/src/libvirt_sym.version.in b/src/libvirt_sym.version.in --- a/src/libvirt_sym.version.in +++ b/src/libvirt_sym.version.in @@ -62,7 +62,6 @@ LIBVIRT_0.1.0 { virCopyLastError; virConnSetErrorFunc; virResetLastError; - virErrorFunc; virResetError; virConnGetLastError; virGetLastError; @@ -199,8 +198,6 @@ LIBVIRT_0.4.1 { virStoragePoolNumOfVolumes; virStoragePoolListVolumes; - virConnectNumOfStorageVolumes; - virConnectListStorageVolumes; virStorageVolGetConnect; virStorageVolLookupByName; virStorageVolLookupByKey; @@ -235,13 +232,9 @@ LIBVIRT_0.5.0 { virNodeNumOfDevices; virNodeListDevices; - virNodeNumOfDevicesByCap; - virNodeListDevicesByCap; virNodeDeviceLookupByName; virNodeDeviceFree; virNodeDeviceGetXMLDesc; - virNodeDeviceCreate; - virNodeDeviceDestroy; virNodeDeviceGetName; virNodeDeviceGetParent; virNodeDeviceNumOfCaps; @@ -441,7 +434,6 @@ LIBVIRT_PRIVATE_@VERSION@ { virStateCleanup; virStateReload; virStateActive; - virStateSigDispatcher; virDrvSupportsFeature; virDomainMigratePrepare; virDomainMigratePerform; @@ -506,10 +498,6 @@ LIBVIRT_PRIVATE_@VERSION@ { # storage_backend.h virStorageBackendForType; - virStorageBackendFromString; - virStorageBackendPartTableTypeFromString; - virStorageBackendPartTableTypeToString; - virStorageBackendRegister; virStorageBackendRunProgNul; virStorageBackendRunProgRegex; virStorageBackendStablePath; @@ -518,7 +506,6 @@ LIBVIRT_PRIVATE_@VERSION@ { # storage_conf.h - virStorageBackendPoolOptionsForType; virStoragePoolDefFormat; virStoragePoolDefFree; virStoragePoolDefParse;

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[libvirt] [PATCH] Fix crash in storageVolumeCreateXML
by Miloslav Trmač 16 Dec '08

16 Dec '08

Hello, storageVolumeCreateXML() recently started unconditionally accessing vol->name with vol == NULL. The attached patch fixes that. Mirek

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[libvirt] virsh save produces "unknown migration protocol: stdio"
by Richard W.M. Jones 16 Dec '08

16 Dec '08

I just want to forward this comment on from #virt so that we don't lose it. It appears to be an incompatibility between libvirt 0.5.0 and recent KVM. <knowinters> Hi, I'm using libvirt 0.5.0 with kvm-79, when I do virsh save kvm replies with "unknown migration protocol: stdio". A state file is created, but it's only 4K and when restored the vm boots from scratch instead of starting where it was when i saved. I googled but couldn't find a resolution. Is this a known issue? <knowinters> nm i think i see what's happening.. it <knowinters> 's using the exec: migration method to call dd to move the state from stdio to a file <knowinters> exec: isn't in kvm-79 i don't think, but i see it in git so ill try that Rich. -- Richard Jones, Emerging Technologies, Red Hat http://et.redhat.com/~rjones Read my OCaml programming blog: http://camltastic.blogspot.com/ Fedora now supports 68 OCaml packages (the OPEN alternative to F#) http://cocan.org/getting_started_with_ocaml_on_red_hat_and_fedora

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[libvirt] PATCH: Fix deadlock upon config file reload
by Daniel P. Berrange 15 Dec '08

15 Dec '08

Turned out there was a small locking bug when reloading domain config files after SIGHUP. I committed the following patch to add in the missing unlock call. This was one of the files I'm unable to do static analysis on, hence why it was missed. Daniel Index: domain_conf.c =================================================================== RCS file: /data/cvs/libvirt/src/domain_conf.c,v retrieving revision 1.45 diff -u -p -r1.45 domain_conf.c --- domain_conf.c 11 Dec 2008 11:44:30 -0000 1.45 +++ domain_conf.c 15 Dec 2008 10:51:11 -0000 @@ -3330,8 +3330,11 @@ virDomainObjPtr virDomainLoadConfig(virC VIR_DOMAIN_XML_INACTIVE))) goto error; - if (virDomainFindByName(doms, def->name)) + if ((dom = virDomainFindByName(doms, def->name))) { + virDomainObjUnlock(dom); + dom = NULL; newVM = 0; + } if (!(dom = virDomainAssignDef(conn, doms, def))) goto error; -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

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[libvirt] [PATCH] remove redundant optname arguments
by Jim Meyering 15 Dec '08

15 Dec '08

>From a5c76721c22cf51b47059a91317f87a9f47c6868 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Tue, 9 Dec 2008 22:22:08 +0100 Subject: [PATCH] remove redundant optname arguments This is the second part of the change mentioned here: http://thread.gmane.org/gmane.comp.emulators.libvirt/10331 It removes the essentially redundant "optname" parameter from each of the vshCommandOptNetworkBy and vshCommandOptDomainBy functions as well as the correspond macros (without "By" suffix). Now, instead of always passing the optname, "domain", to vshCommandOptDomainBy, that function requires that its command argument refer to an opts array containing a "domain" option. This normalization makes one more help-related change: it renames the net-start "name" argument to the more sensible and consistent "network". * src/virsh.c (VSH_BYNAME, vshCommandOptDomain) (cmd_has_option): New function, used in vshCommandOptDomainBy and vshCommandOptNetworkBy. (vshCommandOptDomainBy, vshCommandOptNetworkBy): Remove the optname parameter, it's always "domain" ("network"). Update all callers. Call cmd_has_option. (vshCommandOptNetwork, cmdAutostart, cmdConsole, cmdDomstate) (cmdDomblkstat, cmdDomIfstat, cmdSuspend, cmdUndefine, cmdStart) (cmdSave, cmdSchedinfo, cmdDump, cmdResume, cmdShutdown) (cmdReboot, cmdDestroy, cmdDominfo, cmdVcpuinfo, cmdVcpupin) (cmdSetvcpus, cmdSetmem, cmdSetmaxmem, cmdDumpXML, cmdDomname) (cmdDomid, cmdDomuuid, cmdMigrate, cmdNetworkAutostart) (cmdNetworkDestroy, cmdNetworkDumpXML, cmdNetworkName) (opts_network_start, cmdNetworkStart, cmdNetworkUndefine) (cmdNetworkUuid, cmdVNCDisplay, cmdTTYConsole, cmdAttachDevice) (cmdDetachDevice, cmdAttachInterface, cmdDetachInterface) (cmdAttachDisk, cmdDetachDisk, cmdEdit) * src/Makefile.am (virsh-pool-edit.c): This code is generated from cmdEdit, and cmdEdit uses the vshCommandOptDomain macro which now, with the changes above, has only 3 (was 4) arguments, yet the macro use is mapped to vshCommandOptPool, which still requires 4 arguments. So this change adjusts the sed code to reinsert the just-removed argument -- we're not changing pool-related code right now, because it's not as straight-forward. --- src/Makefile.am | 1 + src/virsh.c | 132 +++++++++++++++++++++++++++++++++---------------------- 2 files changed, 81 insertions(+), 52 deletions(-) diff --git a/src/Makefile.am b/src/Makefile.am index c32a1d4..2053528 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -461,6 +461,7 @@ virsh-pool-edit.c: virsh.c Makefile.am | sed -e 's/domain/pool/g' \ -e 's/vshCommandOptDomain/vshCommandOptPool/g' \ -e 's/Domain %s/Pool %s/g' \ + -e 's/(ctl, cmd, NULL);/(ctl, cmd, "pool", NULL);/' \ -e 's/Domain/StoragePool/g' \ -e 's/cmdEdit/cmdPoolEdit/g' \ -e 's/$virStoragePoolDefineXML.*$);/\1, 0);/' \ diff --git a/src/virsh.c b/src/virsh.c index f4a57f4..7828272 100644 --- a/src/virsh.c +++ b/src/virsh.c @@ -246,19 +246,18 @@ static int vshCommandOptBool(const vshCmd *cmd, const char *name); #define VSH_BYNAME (1 << 3) static virDomainPtr vshCommandOptDomainBy(vshControl *ctl, const vshCmd *cmd, - const char *optname, char **name, int flag); + char **name, int flag); /* default is lookup by Id, Name and UUID */ -#define vshCommandOptDomain(_ctl, _cmd, _optname, _name) \ - vshCommandOptDomainBy(_ctl, _cmd, _optname, _name, \ - VSH_BYID|VSH_BYUUID|VSH_BYNAME) +#define vshCommandOptDomain(_ctl, _cmd, _name) \ + vshCommandOptDomainBy(_ctl, _cmd, _name, VSH_BYID|VSH_BYUUID|VSH_BYNAME) static virNetworkPtr vshCommandOptNetworkBy(vshControl *ctl, const vshCmd *cmd, - const char *optname, char **name, int flag); + char **name, int flag); /* default is lookup by Name and UUID */ -#define vshCommandOptNetwork(_ctl, _cmd, _optname, _name) \ - vshCommandOptNetworkBy(_ctl, _cmd, _optname, _name, \ +#define vshCommandOptNetwork(_ctl, _cmd, _name) \ + vshCommandOptNetworkBy(_ctl, _cmd, _name, \ VSH_BYUUID|VSH_BYNAME) static virStoragePoolPtr vshCommandOptPoolBy(vshControl *ctl, const vshCmd *cmd, @@ -386,7 +385,7 @@ cmdAutostart(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", &name))) + if (!(dom = vshCommandOptDomain(ctl, cmd, &name))) return FALSE; autostart = !vshCommandOptBool(cmd, "disable"); @@ -488,7 +487,7 @@ cmdConsole(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", NULL))) + if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; doc = virDomainGetXMLDesc(dom, 0); @@ -675,7 +674,7 @@ cmdDomstate(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", NULL))) + if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; if (virDomainGetInfo(dom, &info) == 0) @@ -712,7 +711,7 @@ cmdDomblkstat (vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability (ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomain (ctl, cmd, "domain", &name))) + if (!(dom = vshCommandOptDomain (ctl, cmd, &name))) return FALSE; if (!(device = vshCommandOptString (cmd, "device", NULL))) @@ -768,7 +767,7 @@ cmdDomIfstat (vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability (ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomain (ctl, cmd, "domain", &name))) + if (!(dom = vshCommandOptDomain (ctl, cmd, &name))) return FALSE; if (!(device = vshCommandOptString (cmd, "interface", NULL))) @@ -833,7 +832,7 @@ cmdSuspend(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", &name))) + if (!(dom = vshCommandOptDomain(ctl, cmd, &name))) return FALSE; if (virDomainSuspend(dom) == 0) { @@ -979,7 +978,7 @@ cmdUndefine(vshControl *ctl, const vshCmd *cmd) virDomainFree(dom); return FALSE; } - if (!(dom = vshCommandOptDomainBy(ctl, cmd, "domain", &name, + if (!(dom = vshCommandOptDomainBy(ctl, cmd, &name, VSH_BYNAME|VSH_BYUUID))) return FALSE; @@ -1018,7 +1017,7 @@ cmdStart(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomainBy(ctl, cmd, "domain", NULL, VSH_BYNAME))) + if (!(dom = vshCommandOptDomainBy(ctl, cmd, NULL, VSH_BYNAME))) return FALSE; if (virDomainGetID(dom) != (unsigned int)-1) { @@ -1068,7 +1067,7 @@ cmdSave(vshControl *ctl, const vshCmd *cmd) if (!(to = vshCommandOptString(cmd, "file", NULL))) return FALSE; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", &name))) + if (!(dom = vshCommandOptDomain(ctl, cmd, &name))) return FALSE; if (virDomainSave(dom, to) == 0) { @@ -1124,7 +1123,7 @@ cmdSchedinfo(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", NULL))) + if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; /* Deprecated Xen-only options */ @@ -1330,7 +1329,7 @@ cmdDump(vshControl *ctl, const vshCmd *cmd) if (!(to = vshCommandOptString(cmd, "file", NULL))) return FALSE; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", &name))) + if (!(dom = vshCommandOptDomain(ctl, cmd, &name))) return FALSE; if (virDomainCoreDump(dom, to, 0) == 0) { @@ -1369,7 +1368,7 @@ cmdResume(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", &name))) + if (!(dom = vshCommandOptDomain(ctl, cmd, &name))) return FALSE; if (virDomainResume(dom) == 0) { @@ -1407,7 +1406,7 @@ cmdShutdown(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", &name))) + if (!(dom = vshCommandOptDomain(ctl, cmd, &name))) return FALSE; if (virDomainShutdown(dom) == 0) { @@ -1445,7 +1444,7 @@ cmdReboot(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", &name))) + if (!(dom = vshCommandOptDomain(ctl, cmd, &name))) return FALSE; if (virDomainReboot(dom, 0) == 0) { @@ -1483,7 +1482,7 @@ cmdDestroy(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", &name))) + if (!(dom = vshCommandOptDomain(ctl, cmd, &name))) return FALSE; if (virDomainDestroy(dom) == 0) { @@ -1523,7 +1522,7 @@ cmdDominfo(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", NULL))) + if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; id = virDomainGetID(dom); @@ -1648,7 +1647,7 @@ cmdVcpuinfo(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", NULL))) + if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; if (virNodeGetInfo(ctl->conn, &nodeinfo) != 0) { @@ -1739,7 +1738,7 @@ cmdVcpupin(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", NULL))) + if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; vcpu = vshCommandOptInt(cmd, "vcpu", &vcpufound); @@ -1864,7 +1863,7 @@ cmdSetvcpus(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", NULL))) + if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; count = vshCommandOptInt(cmd, "count", &count); @@ -1920,7 +1919,7 @@ cmdSetmem(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", NULL))) + if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; kilobytes = vshCommandOptInt(cmd, "kilobytes", &kilobytes); @@ -1976,7 +1975,7 @@ cmdSetmaxmem(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", NULL))) + if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; kilobytes = vshCommandOptInt(cmd, "kilobytes", &kilobytes); @@ -2093,7 +2092,7 @@ cmdDumpXML(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", NULL))) + if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; dump = virDomainGetXMLDesc(dom, 0); @@ -2129,7 +2128,7 @@ cmdDomname(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomainBy(ctl, cmd, "domain", NULL, + if (!(dom = vshCommandOptDomainBy(ctl, cmd, NULL, VSH_BYID|VSH_BYUUID))) return FALSE; @@ -2160,7 +2159,7 @@ cmdDomid(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomainBy(ctl, cmd, "domain", NULL, + if (!(dom = vshCommandOptDomainBy(ctl, cmd, NULL, VSH_BYNAME|VSH_BYUUID))) return FALSE; @@ -2195,7 +2194,7 @@ cmdDomuuid(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomainBy(ctl, cmd, "domain", NULL, + if (!(dom = vshCommandOptDomainBy(ctl, cmd, NULL, VSH_BYNAME|VSH_BYID))) return FALSE; @@ -2240,7 +2239,7 @@ cmdMigrate (vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability (ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomain (ctl, cmd, "domain", NULL))) + if (!(dom = vshCommandOptDomain (ctl, cmd, NULL))) return FALSE; desturi = vshCommandOptString (cmd, "desturi", &found); @@ -2301,7 +2300,7 @@ cmdNetworkAutostart(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(network = vshCommandOptNetwork(ctl, cmd, "network", &name))) + if (!(network = vshCommandOptNetwork(ctl, cmd, &name))) return FALSE; autostart = !vshCommandOptBool(cmd, "disable"); @@ -2443,7 +2442,7 @@ cmdNetworkDestroy(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(network = vshCommandOptNetwork(ctl, cmd, "network", &name))) + if (!(network = vshCommandOptNetwork(ctl, cmd, &name))) return FALSE; if (virNetworkDestroy(network) == 0) { @@ -2482,7 +2481,7 @@ cmdNetworkDumpXML(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(network = vshCommandOptNetwork(ctl, cmd, "network", NULL))) + if (!(network = vshCommandOptNetwork(ctl, cmd, NULL))) return FALSE; dump = virNetworkGetXMLDesc(network, 0); @@ -2642,7 +2641,7 @@ cmdNetworkName(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(network = vshCommandOptNetworkBy(ctl, cmd, "network", NULL, + if (!(network = vshCommandOptNetworkBy(ctl, cmd, NULL, VSH_BYUUID))) return FALSE; @@ -2662,7 +2661,7 @@ static const vshCmdInfo info_network_start[] = { }; static const vshCmdOptDef opts_network_start[] = { - {"name", VSH_OT_DATA, VSH_OFLAG_REQ, gettext_noop("name of the inactive network")}, + {"network", VSH_OT_DATA, VSH_OFLAG_REQ, gettext_noop("name of the inactive network")}, {NULL, 0, 0, NULL} }; @@ -2675,7 +2674,7 @@ cmdNetworkStart(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(network = vshCommandOptNetworkBy(ctl, cmd, "name", NULL, VSH_BYNAME))) + if (!(network = vshCommandOptNetworkBy(ctl, cmd, NULL, VSH_BYNAME))) return FALSE; if (virNetworkCreate(network) == 0) { @@ -2714,7 +2713,7 @@ cmdNetworkUndefine(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(network = vshCommandOptNetwork(ctl, cmd, "network", &name))) + if (!(network = vshCommandOptNetwork(ctl, cmd, &name))) return FALSE; if (virNetworkUndefine(network) == 0) { @@ -2751,7 +2750,7 @@ cmdNetworkUuid(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(network = vshCommandOptNetworkBy(ctl, cmd, "network", NULL, + if (!(network = vshCommandOptNetworkBy(ctl, cmd, NULL, VSH_BYNAME))) return FALSE; @@ -4527,7 +4526,7 @@ cmdVNCDisplay(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", NULL))) + if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; doc = virDomainGetXMLDesc(dom, 0); @@ -4601,7 +4600,7 @@ cmdTTYConsole(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", NULL))) + if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; doc = virDomainGetXMLDesc(dom, 0); @@ -4661,7 +4660,7 @@ cmdAttachDevice(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", NULL))) + if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; from = vshCommandOptString(cmd, "file", &found); @@ -4719,7 +4718,7 @@ cmdDetachDevice(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) return FALSE; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", NULL))) + if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; from = vshCommandOptString(cmd, "file", &found); @@ -4780,7 +4779,7 @@ cmdAttachInterface(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) goto cleanup; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", NULL))) + if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) goto cleanup; if (!(type = vshCommandOptString(cmd, "type", NULL))) @@ -4899,7 +4898,7 @@ cmdDetachInterface(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) goto cleanup; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", NULL))) + if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) goto cleanup; if (!(type = vshCommandOptString(cmd, "type", NULL))) @@ -5017,7 +5016,7 @@ cmdAttachDisk(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) goto cleanup; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", NULL))) + if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) goto cleanup; if (!(source = vshCommandOptString(cmd, "source", NULL))) @@ -5181,7 +5180,7 @@ cmdDetachDisk(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) goto cleanup; - if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", NULL))) + if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) goto cleanup; if (!(target = vshCommandOptString(cmd, "target", NULL))) @@ -5410,7 +5409,7 @@ cmdEdit (vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) goto cleanup; - dom = vshCommandOptDomain (ctl, cmd, "domain", NULL); + dom = vshCommandOptDomain (ctl, cmd, NULL); if (dom == NULL) goto cleanup; @@ -5912,14 +5911,40 @@ vshCommandOptBool(const vshCmd *cmd, const char *name) return vshCommandOpt(cmd, name) ? TRUE : FALSE; } +/* Determine whether CMD->opts includes an option with name OPTNAME. + If not, give a diagnostic and return false. + If so, return true. */ +static bool +cmd_has_option (vshControl *ctl, const vshCmd *cmd, const char *optname) +{ + /* Iterate through cmd->opts, to ensure that there is an entry + with name OPTNAME and type VSH_OT_DATA. */ + bool found = false; + const vshCmdOpt *opt; + for (opt = cmd->opts; opt; opt = opt->next) { + if (STREQ (opt->def->name, optname) && opt->def->type == VSH_OT_DATA) { + found = true; + break; + } + } + + if (!found) + vshError(ctl, FALSE, + _("internal error: virsh %s: no %s VSH_OT_DATA option"), + cmd->def->name, optname); + return found; +} static virDomainPtr -vshCommandOptDomainBy(vshControl *ctl, const vshCmd *cmd, const char *optname, +vshCommandOptDomainBy(vshControl *ctl, const vshCmd *cmd, char **name, int flag) { virDomainPtr dom = NULL; char *n; int id; + const char *optname = "domain"; + if (!cmd_has_option (ctl, cmd, optname)) + return NULL; if (!(n = vshCommandOptString(cmd, optname, NULL))) { vshError(ctl, FALSE, "%s", _("undefined domain name or id")); @@ -5960,11 +5985,14 @@ vshCommandOptDomainBy(vshControl *ctl, const vshCmd *cmd, const char *optname, } static virNetworkPtr -vshCommandOptNetworkBy(vshControl *ctl, const vshCmd *cmd, const char *optname, +vshCommandOptNetworkBy(vshControl *ctl, const vshCmd *cmd, char **name, int flag) { virNetworkPtr network = NULL; char *n; + const char *optname = "network"; + if (!cmd_has_option (ctl, cmd, optname)) + return NULL; if (!(n = vshCommandOptString(cmd, optname, NULL))) { vshError(ctl, FALSE, "%s", _("undefined network name")); -- 1.6.0.4.1044.g77718

2 1

[libvirt] [PATCH] remove cvs $Id$ strings
by Jim Meyering 15 Dec '08

15 Dec '08

Here's the change to remove the few remaining CVS $Id$ strings: >From f2a2d1403656cdfe6e927c476da66ad0c49487ae Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Fri, 12 Dec 2008 13:36:08 +0100 Subject: [PATCH] remove cvs $Id$ strings * po/id.po: Likewise. * qemud/remote_generate_stubs.pl: Likewise. * src/virsh.c: Likewise. * tests/testutils.c: Likewise. * tests/testutils.h: Likewise. * RENAMES: Likewise. --- RENAMES | 2 -- po/id.po | 1 - qemud/remote_generate_stubs.pl | 2 -- src/virsh.c | 3 --- tests/testutils.c | 4 +--- tests/testutils.h | 4 +--- 6 files changed, 2 insertions(+), 14 deletions(-) diff --git a/RENAMES b/RENAMES index 27f85a4..143aebd 100644 --- a/RENAMES +++ b/RENAMES @@ -2,8 +2,6 @@ # # File renames don't normally go into patches because they make # the patches much harder to read, so list them here instead. -# -# $Id$ # Clearer naming scheme after Xen-unified patch went in. src/xen_internal.c src/xen_internal_hv.c diff --git a/po/id.po b/po/id.po index 5590e65..458b033 100644 --- a/po/id.po +++ b/po/id.po @@ -1,7 +1,6 @@ # translation of libvirt to Bahasa Indonesia (id). # This file is distributed under the same license as the libvirt package. # Teguh DC <dheche(a)songolimo.net>, 2007. -# $Id$ msgid "" msgstr "" "Project-Id-Version: libvirt\n" diff --git a/qemud/remote_generate_stubs.pl b/qemud/remote_generate_stubs.pl index 2dff468..44e1552 100755 --- a/qemud/remote_generate_stubs.pl +++ b/qemud/remote_generate_stubs.pl @@ -4,8 +4,6 @@ # code for both ends of the remote connection. # # By Richard Jones <rjones(a)redhat.com> -# -# $Id$ use strict; diff --git a/src/virsh.c b/src/virsh.c index 1a5b42f..f4a57f4 100644 --- a/src/virsh.c +++ b/src/virsh.c @@ -8,9 +8,6 @@ * Daniel Veillard <veillard(a)redhat.com> * Karel Zak <kzak(a)redhat.com> * Daniel P. Berrange <berrange(a)redhat.com> - * - * - * $Id$ */ #include <config.h> diff --git a/tests/testutils.c b/tests/testutils.c index 0255bdf..187123c 100644 --- a/tests/testutils.c +++ b/tests/testutils.c @@ -1,13 +1,11 @@ /* * testutils.c: basic test utils * - * Copyright (C) 2005-2007 Red Hat, Inc. + * Copyright (C) 2005-2008 Red Hat, Inc. * * See COPYING.LIB for the License of this software * * Karel Zak <kzak(a)redhat.com> - * - * $Id$ */ #include <config.h> diff --git a/tests/testutils.h b/tests/testutils.h index 7afd579..fd326ae 100644 --- a/tests/testutils.h +++ b/tests/testutils.h @@ -1,13 +1,11 @@ /* * utils.c: test utils * - * Copyright (C) 2005 Red Hat, Inc. + * Copyright (C) 2005, 2008 Red Hat, Inc. * * See COPYING.LIB for the License of this software * * Karel Zak <kzak(a)redhat.com> - * - * $Id$ */ #ifndef __VIT_TEST_UTILS_H__ -- 1.6.0.4.1044.g77718

2 3

[libvirt] Re: [PATCH/RFC] kvm/qemu vs libvirtd restarts
by Daniel P. Berrange 13 Dec '08

13 Dec '08

Moving thread to libvir-list.... On Tue, Oct 07, 2008 at 06:12:33PM +0200, Guido G?nther wrote: > On Fri, Sep 26, 2008 at 04:47:05PM +0100, Daniel P. Berrange wrote: > > On Fri, Sep 26, 2008 at 05:41:02PM +0200, Guido G?nther wrote: > > > > We've got this problem sorted in the 'lxc' driver and need to apply > > the same approach to the QEMU driver. The problem was always finding > > the Pseduo-TTY/PID for the monitor after restart, and associating the > > live config with it. We've "solved" that in LXC driver by savingt the > > live XML & PID to /var/run/libvirt/lxc/. It basically needs the same > > approach to be applied to the QEMU daemons. In addition the DNSmasq > > deamon needs adapting for simiarl reasons. > > Attached is a very early patch. It keeps the qemu instances running and > writes out their states upon shutdown. Reconnecting (and therefore sending > monitor commands, etc.) works but since stdout/stderr don't get picked > up again yet we don't handle virEventAddhandle. I'll grab them from > /proc/<pid>/fd/{1,2} later. Network state is missing too, but since this > is moving into a separate file it's becoming a different matter anyway. First off, thanks for working on this! A few general comments, and then I'll put rest inline.. For stdout/err, it need to be setup so that the logfile is dup()'d onto the QEMU process' file descriptors directly, and get libvirt outof the business of I/O forwarding. This avoids any complications with re-attaching to stdout/err, and loosing any log data while libvirt isn't running. This also needs to be implemented with the assumption that the daemon can & will crash any time. So putting the state-saving hooks into the qemudShutdown() method won't be sufficient. We need to write out the state we need when initially starting the VM, and then update it any time we hot-plug/unplug devices. Ignoring network state is fine - we can address that separately.. > Subject: [PATCH] let qemu/kvm survive libvirtd restarts > > --- > src/domain_conf.c | 1 + > src/domain_conf.h | 1 + > src/qemu_conf.h | 1 + > src/qemu_driver.c | 264 +++++++++++++++++++++++++++++++++++++++++++++++++---- > src/util.c | 4 +- > src/util.h | 1 + > 6 files changed, 254 insertions(+), 18 deletions(-) > > diff --git a/src/domain_conf.c b/src/domain_conf.c > index 6a35064..aa102f6 100644 > --- a/src/domain_conf.c > +++ b/src/domain_conf.c > @@ -420,6 +420,7 @@ void virDomainObjFree(virDomainObjPtr dom) > virDomainDefFree(dom->def); > virDomainDefFree(dom->newDef); > > + VIR_FREE(dom->monitorpath); > VIR_FREE(dom->vcpupids); > > VIR_FREE(dom); > diff --git a/src/domain_conf.h b/src/domain_conf.h > index 632e5ad..1ac1561 100644 > --- a/src/domain_conf.h > +++ b/src/domain_conf.h > @@ -448,6 +448,7 @@ struct _virDomainObj { > int stdout_fd; > int stderr_fd; > int monitor; > + char *monitorpath; I think we can avoid needing this. If we write out the staste the moment the VM is started, we don't need to carry this around in memory. Alternatively, since we're writing all stdout/err data to the logfile, we could simply re-parse the log to extract the monitor path upon restart. > int logfile; > int pid; > int state; > diff --git a/src/qemu_conf.h b/src/qemu_conf.h > index 88dfade..f47582e 100644 > --- a/src/qemu_conf.h > +++ b/src/qemu_conf.h > @@ -62,6 +62,7 @@ struct qemud_driver { > char *networkConfigDir; > char *networkAutostartDir; > char *logDir; > + char *stateDir; > unsigned int vncTLS : 1; > unsigned int vncTLSx509verify : 1; > char *vncTLSx509certdir; > diff --git a/src/qemu_driver.c b/src/qemu_driver.c > index 806608d..87789a9 100644 > --- a/src/qemu_driver.c > +++ b/src/qemu_driver.c > @@ -172,6 +172,181 @@ void qemudAutostartConfigs(struct qemud_driver *driver) { > } > > #ifdef WITH_LIBVIRTD > + > +static int > +qemudFileWriteMonitor(const char *dir, > + const char *name, > + const char *path) > +{ > + int rc; > + int fd; > + FILE *file = NULL; > + char *monitorfile = NULL; > + > + if ((rc = virFileMakePath(dir))) > + goto cleanup; > + > + if (asprintf(&monitorfile, "%s/%s.monitor", dir, name) < 0) { > + rc = ENOMEM; > + goto cleanup; > + } > + > + if ((fd = open(monitorfile, > + O_WRONLY | O_CREAT | O_TRUNC, > + S_IRUSR | S_IWUSR)) < 0) { > + rc = errno; > + goto cleanup; > + } > + > + if (!(file = fdopen(fd, "w"))) { > + rc = errno; > + close(fd); > + goto cleanup; > + } > + > + if (fprintf(file, "%s", path) < 0) { > + rc = errno; > + goto cleanup; > + } > + > + rc = 0; > + > +cleanup: > + if (file && > + fclose(file) < 0) { > + rc = errno; > + } > + > + VIR_FREE(monitorfile); > + return rc; > +} > + > +static int > +qemudFileReadMonitor(const char *dir, > + const char *name, > + char **path) > +{ > + int rc; > + FILE *file; > + char *monitorfile = NULL; > + > + if (asprintf(&monitorfile, "%s/%s.monitor", dir, name) < 0) { > + rc = ENOMEM; > + goto cleanup; > + } > + > + if (!(file = fopen(monitorfile, "r"))) { > + rc = errno; > + goto cleanup; > + } > + > + if (fscanf(file, "%as", path) != 1) { > + rc = EINVAL; > + goto cleanup; > + } > + > + if (fclose(file) < 0) { > + rc = errno; > + goto cleanup; > + } > + > + rc = 0; > + > + cleanup: > + VIR_FREE(monitorfile); > + return rc; > +} If we re-parse the logfile to extract the monitiro PTY path, this is unneccessary. If not, this can be simplied by just calling the convenient virFileReadAll() method. > + > +static int > +qemudFileDeleteMonitor(const char *dir, > + const char *name) > +{ > + int rc = 0; > + char *pidfile = NULL; > + > + if (asprintf(&pidfile, "%s/%s.monitor", dir, name) < 0) { > + rc = errno; > + goto cleanup; > + } > + > + if (unlink(pidfile) < 0 && errno != ENOENT) > + rc = errno; > + > +cleanup: > + VIR_FREE(pidfile); > + return rc; > +} > + > + > +static int qemudOpenMonitor(virConnectPtr conn, > + struct qemud_driver *driver, > + virDomainObjPtr vm, > + const char *monitor, > + int reconnect); > +/** > + * qemudReconnectVMs > + * > + * Reconnect running vms to the daemon process > + */ > +static int > +qemudReconnectVMs(struct qemud_driver *driver) > +{ > + virDomainObjPtr vm = driver->domains; > + > + while (vm) { > + virDomainDefPtr tmp; > + char *config = NULL; > + char *monitor = NULL; > + int rc; > + > + /* Read pid */ > + if ((rc = virFileReadPid(driver->stateDir, vm->def->name, &vm->pid)) == 0) { > + virFileDeletePid(driver->stateDir, vm->def->name); > + DEBUG("Found pid %d for '%s'", vm->pid, vm->def->name); > + } else > + goto next; > + > + if ((config = virDomainConfigFile(NULL, > + driver->stateDir, > + vm->def->name)) == NULL) { > + qemudLog(QEMUD_ERR, _("Failed to read back domain config for %s\n"), > + vm->def->name); > + goto next; > + } > + > + /* Try and load the config */ > + tmp = virDomainDefParseFile(NULL, driver->caps, config); > + unlink(config); > + if (tmp) { > + vm->newDef = vm->def; > + vm->def = tmp; > + } > + > + /* read back monitor path */ > + if ((rc = qemudFileReadMonitor(driver->stateDir, vm->def->name, &monitor)) != 0) { > + qemudLog(QEMUD_ERR, _("Failed to read back monitor path for %s: %s\n"), > + vm->def->name, strerror(rc)); > + goto next; > + } > + qemudFileDeleteMonitor(driver->stateDir, vm->def->name); > + > + /* FIXME: reconnect stdout/stderr via /proc/pid/fd/ */ > + > + if ((rc = qemudOpenMonitor(NULL, driver, vm, monitor, 1)) != 0) { > + qemudLog(QEMUD_ERR, _("Failed to reconnect to monitor for %s: %d\n"), > + vm->def->name, rc); > + goto next; > + } > + vm->def->id = driver->nextvmid++; The ID of a vm must never change for until it is rebooted. Simply don't overwrite the existing vm->def->id that we jjust loaded off disk. And instead adjust the nextvmid field, eg if (vm->def->id >= driver->nextvmid) driver->nextvmid = vm->def->id + 1; > + vm->state = VIR_DOMAIN_RUNNING; > +next: > + VIR_FREE(config); > + VIR_FREE(monitor); > + vm = vm->next; > + } > + return 0; > +} > + > /** > * qemudStartup: > * > @@ -197,6 +372,10 @@ qemudStartup(void) { > > if ((base = strdup (SYSCONF_DIR "/libvirt")) == NULL) > goto out_of_memory; > + > + if (asprintf (&qemu_driver->stateDir, > + "%s/run/libvirt/qemu/", LOCAL_STATE_DIR) == -1) > + goto out_of_memory; > } else { > if (!(pw = getpwuid(uid))) { > qemudLog(QEMUD_ERR, _("Failed to find user record for uid '%d': %s\n"), > @@ -210,6 +389,10 @@ qemudStartup(void) { > > if (asprintf (&base, "%s/.libvirt", pw->pw_dir) == -1) > goto out_of_memory; > + > + if (asprintf (&qemu_driver->stateDir, > + "%s/run/libvirt/qemu/", base) == -1) > + goto out_of_memory; > } > > /* Configuration paths are either ~/.libvirt/qemu/... (session) or > @@ -250,6 +433,8 @@ qemudStartup(void) { > qemudShutdown(); > return -1; > } > + qemudReconnectVMs(qemu_driver); > + > if (virNetworkLoadAllConfigs(NULL, > &qemu_driver->networks, > qemu_driver->networkConfigDir, > @@ -329,6 +514,34 @@ qemudActive(void) { > return 0; > } > > +/** > + * qemudSaveDomainState > + * > + * Save the full state of a running domain to statedir > + * > + * Returns 0 on success > + */ > +static int > +qemudSaveDomainState(struct qemud_driver * driver, virDomainObjPtr vm) { > + int ret; > + > + if ((ret = virFileWritePid(driver->stateDir, vm->def->name, vm->pid)) != 0) { > + qemudLog(QEMUD_ERR, _("Unable to safe pidfile for %s: %s\n"), > + vm->def->name, strerror(ret)); > + return ret; > + } > + if ((ret = virDomainSaveConfig(NULL, driver->stateDir, vm->def))) { > + qemudLog(QEMUD_ERR, _("Unable to save domain %s\n"), vm->def->name); > + return ret; > + } > + if ((ret = qemudFileWriteMonitor(driver->stateDir, vm->def->name, vm->monitorpath)) != 0) { > + qemudLog(QEMUD_ERR, _("Unable to monitor file for %s: %s\n"), > + vm->def->name, strerror(ret)); > + return ret; > + } > + return 0; > +} > + This will need to be called at time of VM creation, and the XSL config will need updating whether live config changes. > /** > * qemudShutdown: > * > @@ -349,10 +562,14 @@ qemudShutdown(void) { > while (vm) { > virDomainObjPtr next = vm->next; > if (virDomainIsActive(vm)) > +#if 1 > + qemudSaveDomainState(qemu_driver, vm); > +#else > qemudShutdownVMDaemon(NULL, qemu_driver, vm); > if (!vm->persistent) > virDomainRemoveInactive(&qemu_driver->domains, > vm); > +#endif > vm = next; > } > > @@ -389,6 +606,7 @@ qemudShutdown(void) { > VIR_FREE(qemu_driver->networkConfigDir); > VIR_FREE(qemu_driver->networkAutostartDir); > VIR_FREE(qemu_driver->vncTLSx509certdir); > + VIR_FREE(qemu_driver->stateDir); > > if (qemu_driver->brctl) > brShutdown(qemu_driver->brctl); > @@ -499,7 +717,7 @@ qemudCheckMonitorPrompt(virConnectPtr conn ATTRIBUTE_UNUSED, > static int qemudOpenMonitor(virConnectPtr conn, > struct qemud_driver *driver, > virDomainObjPtr vm, > - const char *monitor) { > + const char *monitor, int reconnect) { > int monfd; > char buf[1024]; > int ret = -1; > @@ -520,11 +738,26 @@ static int qemudOpenMonitor(virConnectPtr conn, > goto error; > } > > - ret = qemudReadMonitorOutput(conn, > - driver, vm, monfd, > - buf, sizeof(buf), > - qemudCheckMonitorPrompt, > - "monitor"); > + if (!reconnect) { > + ret = qemudReadMonitorOutput(conn, > + driver, vm, monfd, > + buf, sizeof(buf), > + qemudCheckMonitorPrompt, > + "monitor"); > + > + } else { > + vm->monitor = monfd; > + ret = 0; > + } > + > + if (ret != 0) > + goto error; > + > + if (!(vm->monitorpath = strdup(monitor))) { > + qemudReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, > + "%s", _("failed to allocate space for monitor path")); > + goto error; > + } > > /* Keep monitor open upon success */ > if (ret == 0) > @@ -623,7 +856,7 @@ qemudFindCharDevicePTYs(virConnectPtr conn, > } > > /* Got them all, so now open the monitor console */ > - ret = qemudOpenMonitor(conn, driver, vm, monitor); > + ret = qemudOpenMonitor(conn, driver, vm, monitor, 0); > > cleanup: > VIR_FREE(monitor); > @@ -966,12 +1199,11 @@ static int qemudStartVMDaemon(virConnectPtr conn, > > ret = virExec(conn, argv, NULL, &keepfd, &vm->pid, > vm->stdin_fd, &vm->stdout_fd, &vm->stderr_fd, > - VIR_EXEC_NONBLOCK); > + VIR_EXEC_NONBLOCK | VIR_EXEC_SETSID); > if (ret == 0) { > vm->def->id = driver->nextvmid++; > vm->state = migrateFrom ? VIR_DOMAIN_PAUSED : VIR_DOMAIN_RUNNING; > } > - > for (i = 0 ; argv[i] ; i++) > VIR_FREE(argv[i]); > VIR_FREE(argv); > @@ -1037,7 +1269,9 @@ static void qemudShutdownVMDaemon(virConnectPtr conn ATTRIBUTE_UNUSED, > > qemudLog(QEMUD_INFO, _("Shutting down VM '%s'\n"), vm->def->name); > > - kill(vm->pid, SIGTERM); > + if (kill(vm->pid, SIGTERM) < 0) > + qemudLog(QEMUD_ERROR, _("Failed to send SIGTERM to %s (%d): %s\n"), > + vm->def->name, vm->pid, strerror(errno)); > > qemudVMData(driver, vm, vm->stdout_fd); > qemudVMData(driver, vm, vm->stderr_fd); > @@ -1057,13 +1291,9 @@ static void qemudShutdownVMDaemon(virConnectPtr conn ATTRIBUTE_UNUSED, > vm->stderr_fd = -1; > vm->monitor = -1; > > - if (waitpid(vm->pid, NULL, WNOHANG) != vm->pid) { > - kill(vm->pid, SIGKILL); > - if (waitpid(vm->pid, NULL, 0) != vm->pid) { > - qemudLog(QEMUD_WARN, > - "%s", _("Got unexpected pid, damn\n")); > - } > - } > + /* shut if off for sure */ > + kill(vm->pid, SIGKILL); > + virFileDeletePid(driver->stateDir, vm->def->name); > > vm->pid = -1; > vm->def->id = -1; > diff --git a/src/util.c b/src/util.c > index ca14be1..442c810 100644 > --- a/src/util.c > +++ b/src/util.c > @@ -299,14 +299,16 @@ virExec(virConnectPtr conn, > !FD_ISSET(i, keepfd))) > close(i); > > - if (flags & VIR_EXEC_DAEMON) { > + if (flags & VIR_EXEC_DAEMON || flags & VIR_EXEC_SETSID) { > if (setsid() < 0) { > ReportError(conn, VIR_ERR_INTERNAL_ERROR, > _("cannot become session leader: %s"), > strerror(errno)); > _exit(1); > } > + } > > + if (flags & VIR_EXEC_DAEMON) { > if (chdir("/") < 0) { > ReportError(conn, VIR_ERR_INTERNAL_ERROR, > _("cannot change to root directory: %s"), > diff --git a/src/util.h b/src/util.h > index 093ef46..8fbe2cd 100644 > --- a/src/util.h > +++ b/src/util.h > @@ -32,6 +32,7 @@ enum { > VIR_EXEC_NONE = 0, > VIR_EXEC_NONBLOCK = (1 << 0), > VIR_EXEC_DAEMON = (1 << 1), > + VIR_EXEC_SETSID = (1 << 2), > }; Shouldn't we simply be starting all the QEMU VMs with VIR_EXEC_DAEMON so they totally disassociate themselves from libvirtd right away. They will be disassociated anyway if the libvirtd is ever restarted, so best to daemonize from time they are started, to avoid any surprising changes in behaviour Regards, Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

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