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qemu: move libvirt ctime and version into _virQEMUCaps struct

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Cleanups the code a little bit and reduces amount of arguments passed
throughout the functions.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
This commit is contained in:
Pavel Hrdina 2017-06-13 17:55:45 +02:00
parent 38e516a524
commit a63ef87709
4 changed files with 26 additions and 35 deletions
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44
src/qemu/qemu_capabilities.c
View File

@ -475,11 +475,13 @@ struct _virQEMUCaps {
char *binary; char *binary;
time_t ctime; time_t ctime;
time_t libvirtCtime;
virBitmapPtr flags; virBitmapPtr flags;
unsigned int version; unsigned int version;
unsigned int kvmVersion; unsigned int kvmVersion;
unsigned int libvirtVersion;
char *package; char *package;
virArch arch; virArch arch;
@ -3782,9 +3784,7 @@ virQEMUCapsLoadCPUModels(virQEMUCapsPtr qemuCaps,
int int
virQEMUCapsLoadCache(virCapsPtr caps, virQEMUCapsLoadCache(virCapsPtr caps,
virQEMUCapsPtr qemuCaps, virQEMUCapsPtr qemuCaps,
const char *filename, const char *filename)
time_t *selfctime,
unsigned long *selfvers)
{ {
xmlDocPtr doc = NULL; xmlDocPtr doc = NULL;
int ret = -1; int ret = -1;
@ -3826,11 +3826,11 @@ virQEMUCapsLoadCache(virCapsPtr caps,
_("missing selfctime in QEMU capabilities XML")); _("missing selfctime in QEMU capabilities XML"));
goto cleanup; goto cleanup;
} }
*selfctime = (time_t)l; qemuCaps->libvirtCtime = (time_t)l;
*selfvers = 0; qemuCaps->libvirtVersion = 0;
if (virXPathULong("string(./selfvers)", ctxt, &lu) == 0) if (virXPathULong("string(./selfvers)", ctxt, &lu) == 0)
*selfvers = lu; qemuCaps->libvirtVersion = lu;
qemuCaps->usedQMP = virXPathBoolean("count(./usedQMP) > 0", qemuCaps->usedQMP = virXPathBoolean("count(./usedQMP) > 0",
ctxt) > 0; ctxt) > 0;
@ -4103,9 +4103,7 @@ virQEMUCapsFormatCPUModels(virQEMUCapsPtr qemuCaps,
char * char *
virQEMUCapsFormatCache(virQEMUCapsPtr qemuCaps, virQEMUCapsFormatCache(virQEMUCapsPtr qemuCaps)
time_t selfCTime,
unsigned long selfVersion)
{ {
virBuffer buf = VIR_BUFFER_INITIALIZER; virBuffer buf = VIR_BUFFER_INITIALIZER;
char *ret = NULL; char *ret = NULL;
@ -4117,9 +4115,9 @@ virQEMUCapsFormatCache(virQEMUCapsPtr qemuCaps,
virBufferAsprintf(&buf, "<qemuctime>%llu</qemuctime>\n", virBufferAsprintf(&buf, "<qemuctime>%llu</qemuctime>\n",
(long long) qemuCaps->ctime); (long long) qemuCaps->ctime);
virBufferAsprintf(&buf, "<selfctime>%llu</selfctime>\n", virBufferAsprintf(&buf, "<selfctime>%llu</selfctime>\n",
(long long) selfCTime); (long long) qemuCaps->libvirtCtime);
virBufferAsprintf(&buf, "<selfvers>%lu</selfvers>\n", virBufferAsprintf(&buf, "<selfvers>%lu</selfvers>\n",
(unsigned long) selfVersion); (unsigned long) qemuCaps->libvirtVersion);
if (qemuCaps->usedQMP) if (qemuCaps->usedQMP)
virBufferAddLit(&buf, "<usedQMP/>\n"); virBufferAddLit(&buf, "<usedQMP/>\n");
@ -4194,9 +4192,7 @@ virQEMUCapsSaveCache(virQEMUCapsPtr qemuCaps, const char *filename)
char *xml = NULL; char *xml = NULL;
int ret = -1; int ret = -1;
xml = virQEMUCapsFormatCache(qemuCaps, xml = virQEMUCapsFormatCache(qemuCaps);
virGetSelfLastChanged(),
LIBVIR_VERSION_NUMBER);
if (virFileWriteStr(filename, xml, 0600) < 0) { if (virFileWriteStr(filename, xml, 0600) < 0) {
virReportSystemError(errno, virReportSystemError(errno,
@ -4208,7 +4204,7 @@ virQEMUCapsSaveCache(virQEMUCapsPtr qemuCaps, const char *filename)
VIR_DEBUG("Saved caps '%s' for '%s' with (%lld, %lld)", VIR_DEBUG("Saved caps '%s' for '%s' with (%lld, %lld)",
filename, qemuCaps->binary, filename, qemuCaps->binary,
(long long)qemuCaps->ctime, (long long)qemuCaps->ctime,
(long long)virGetSelfLastChanged()); (long long)qemuCaps->libvirtCtime);
ret = 0; ret = 0;
cleanup: cleanup:
@ -4298,8 +4294,6 @@ virQEMUCapsInitCached(virCapsPtr caps,
char *binaryhash = NULL; char *binaryhash = NULL;
struct stat sb; struct stat sb;
time_t qemuctime = qemuCaps->ctime; time_t qemuctime = qemuCaps->ctime;
time_t selfctime;
unsigned long selfvers;
if (virAsprintf(&capsdir, "%s/capabilities", cacheDir) < 0) if (virAsprintf(&capsdir, "%s/capabilities", cacheDir) < 0)
goto cleanup; goto cleanup;
@ -4332,8 +4326,7 @@ virQEMUCapsInitCached(virCapsPtr caps,
goto cleanup; goto cleanup;
} }
if (virQEMUCapsLoadCache(caps, qemuCaps, capsfile, if (virQEMUCapsLoadCache(caps, qemuCaps, capsfile) < 0) {
&selfctime, &selfvers) < 0) {
VIR_WARN("Failed to load cached caps from '%s' for '%s': %s", VIR_WARN("Failed to load cached caps from '%s' for '%s': %s",
capsfile, qemuCaps->binary, virGetLastErrorMessage()); capsfile, qemuCaps->binary, virGetLastErrorMessage());
virResetLastError(); virResetLastError();
@ -4344,13 +4337,15 @@ virQEMUCapsInitCached(virCapsPtr caps,
goto discard; goto discard;
/* Discard cache if QEMU binary or libvirtd changed */ /* Discard cache if QEMU binary or libvirtd changed */
if (selfctime != virGetSelfLastChanged() || if (qemuCaps->libvirtCtime != virGetSelfLastChanged() ||
selfvers != LIBVIR_VERSION_NUMBER) { qemuCaps->libvirtVersion != LIBVIR_VERSION_NUMBER) {
VIR_DEBUG("Outdated capabilities for '%s': libvirt changed " VIR_DEBUG("Outdated capabilities for '%s': libvirt changed "
"(%lld vs %lld, %lu vs %lu)", "(%lld vs %lld, %lu vs %lu)",
qemuCaps->binary, qemuCaps->binary,
(long long)selfctime, (long long)virGetSelfLastChanged(), (long long)qemuCaps->libvirtCtime,
selfvers, (unsigned long)LIBVIR_VERSION_NUMBER); (long long)virGetSelfLastChanged(),
(unsigned long)qemuCaps->libvirtVersion,
(unsigned long)LIBVIR_VERSION_NUMBER);
goto discard; goto discard;
} }
@ -5246,6 +5241,9 @@ virQEMUCapsNewForBinaryInternal(virCapsPtr caps,
goto error; goto error;
} }
qemuCaps->libvirtCtime = virGetSelfLastChanged();
qemuCaps->libvirtVersion = LIBVIR_VERSION_NUMBER;
if (cacheDir && if (cacheDir &&
virQEMUCapsRememberCached(qemuCaps, cacheDir) < 0) virQEMUCapsRememberCached(qemuCaps, cacheDir) < 0)
goto error; goto error;

8
src/qemu/qemu_capspriv.h
View File

@ -50,12 +50,8 @@ virQEMUCapsNewForBinaryInternal(virCapsPtr caps,
int virQEMUCapsLoadCache(virCapsPtr caps, int virQEMUCapsLoadCache(virCapsPtr caps,
virQEMUCapsPtr qemuCaps, virQEMUCapsPtr qemuCaps,
const char *filename, const char *filename);
time_t *selfctime, char *virQEMUCapsFormatCache(virQEMUCapsPtr qemuCaps);
unsigned long *selfvers);
char *virQEMUCapsFormatCache(virQEMUCapsPtr qemuCaps,
time_t selfCTime,
unsigned long selfVersion);
int int
virQEMUCapsInitQMPMonitor(virQEMUCapsPtr qemuCaps, virQEMUCapsInitQMPMonitor(virQEMUCapsPtr qemuCaps,

4
tests/qemucapabilitiestest.c
View File

@ -66,7 +66,7 @@ testQemuCaps(const void *opaque)
qemuMonitorTestGetMonitor(mon)) < 0) qemuMonitorTestGetMonitor(mon)) < 0)
goto cleanup; goto cleanup;
if (!(actual = virQEMUCapsFormatCache(capsActual, 0, 0))) if (!(actual = virQEMUCapsFormatCache(capsActual)))
goto cleanup; goto cleanup;
if (virTestCompareToFile(actual, capsFile) < 0) if (virTestCompareToFile(actual, capsFile) < 0)
@ -108,7 +108,7 @@ testQemuCapsCopy(const void *opaque)
if (!(copy = virQEMUCapsNewCopy(orig))) if (!(copy = virQEMUCapsNewCopy(orig)))
goto cleanup; goto cleanup;
if (!(actual = virQEMUCapsFormatCache(copy, 0, 0))) if (!(actual = virQEMUCapsFormatCache(copy)))
goto cleanup; goto cleanup;
if (virTestCompareToFile(actual, capsFile) < 0) if (virTestCompareToFile(actual, capsFile) < 0)

5
tests/testutilsqemu.c
View File

@ -568,12 +568,9 @@ qemuTestParseCapabilities(virCapsPtr caps,
const char *capsFile) const char *capsFile)
{ {
virQEMUCapsPtr qemuCaps = NULL; virQEMUCapsPtr qemuCaps = NULL;
time_t selfctime;
unsigned long version;
if (!(qemuCaps = virQEMUCapsNew()) || if (!(qemuCaps = virQEMUCapsNew()) ||
virQEMUCapsLoadCache(caps, qemuCaps, capsFile, virQEMUCapsLoadCache(caps, qemuCaps, capsFile) < 0)
&selfctime, &version) < 0)
goto error; goto error;
return qemuCaps; return qemuCaps;