A helper that never returns an error and treats bits out of bitmap range as false. Use it everywhere we use ignore_value on virBitmapGetBit, or loop over the bitmap size. --- src/conf/domain_conf.c | 4 +--- src/conf/node_device_conf.c | 4 +--- src/conf/snapshot_conf.c | 6 ++---- src/conf/storage_conf.c | 4 +--- src/libvirt_private.syms | 1 + src/libxl/libxl_domain.c | 4 +--- src/libxl/libxl_driver.c | 5 +---- src/nodeinfo.c | 6 +----- src/qemu/qemu_capabilities.c | 7 +------ src/storage/storage_backend.c | 4 +--- src/util/virbitmap.c | 18 ++++++++++++++++++ src/util/virbitmap.h | 5 +++++ src/util/vircgroup.c | 4 +--- src/util/virdnsmasq.c | 6 +----- src/util/virportallocator.c | 17 +++-------------- src/util/virprocess.c | 9 ++------- src/xen/xen_driver.c | 4 +--- src/xen/xend_internal.c | 5 +---- 18 files changed, 43 insertions(+), 70 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 127fc91..ae8688e 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -3107,7 +3107,6 @@ virDomainDefRejectDuplicateControllers(virDomainDefPtr def) virDomainControllerDefPtr cont; size_t nbitmaps = 0; int ret = -1; - bool b; size_t i; memset(max_idx, -1, sizeof(max_idx)); @@ -3133,8 +3132,7 @@ virDomainDefRejectDuplicateControllers(virDomainDefPtr def) if (max_idx[cont->type] == -1) continue; - ignore_value(virBitmapGetBit(bitmaps[cont->type], cont->idx, &b)); - if (b) { + if (virBitmapIsBitSet(bitmaps[cont->type], cont->idx)) { virReportError(VIR_ERR_XML_ERROR, _("Multiple '%s' controllers with index '%d'"), virDomainControllerTypeToString(cont->type), diff --git a/src/conf/node_device_conf.c b/src/conf/node_device_conf.c index f9c9b6f..2899a06 100644 --- a/src/conf/node_device_conf.c +++ b/src/conf/node_device_conf.c @@ -439,9 +439,7 @@ char *virNodeDeviceDefFormat(const virNodeDeviceDef *def) virInterfaceLinkFormat(&buf, &data->net.lnk); if (data->net.features) { for (i = 0; i < VIR_NET_DEV_FEAT_LAST; i++) { - bool b; - ignore_value(virBitmapGetBit(data->net.features, i, &b)); - if (b) { + if (virBitmapIsBitSet(data->net.features, i)) { virBufferAsprintf(&buf, "<feature name='%s'/>\n", virNetDevFeatureTypeToString(i)); } diff --git a/src/conf/snapshot_conf.c b/src/conf/snapshot_conf.c index a0667c2..dc5436f 100644 --- a/src/conf/snapshot_conf.c +++ b/src/conf/snapshot_conf.c @@ -465,7 +465,6 @@ virDomainSnapshotAlignDisks(virDomainSnapshotDefPtr def, virBitmapPtr map = NULL; size_t i; int ndisks; - bool inuse; if (!def->dom) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", @@ -500,7 +499,7 @@ virDomainSnapshotAlignDisks(virDomainSnapshotDefPtr def, goto cleanup; } - if (virBitmapGetBit(map, idx, &inuse) < 0 || inuse) { + if (virBitmapIsBitSet(map, idx)) { virReportError(VIR_ERR_CONFIG_UNSUPPORTED, _("disk '%s' specified twice"), disk->name); @@ -553,8 +552,7 @@ virDomainSnapshotAlignDisks(virDomainSnapshotDefPtr def, for (i = 0; i < def->dom->ndisks; i++) { virDomainSnapshotDiskDefPtr disk; - ignore_value(virBitmapGetBit(map, i, &inuse)); - if (inuse) + if (virBitmapIsBitSet(map, i)) continue; disk = &def->disks[ndisks++]; if (VIR_ALLOC(disk->src) < 0) diff --git a/src/conf/storage_conf.c b/src/conf/storage_conf.c index 4c1f05d..b070448 100644 --- a/src/conf/storage_conf.c +++ b/src/conf/storage_conf.c @@ -1567,7 +1567,6 @@ virStorageVolTargetDefFormat(virStorageVolOptionsPtr options, if (options->featureToString && def->features) { size_t i; - bool b; bool empty = virBitmapIsAllClear(def->features); if (empty) { @@ -1578,8 +1577,7 @@ virStorageVolTargetDefFormat(virStorageVolOptionsPtr options, } for (i = 0; i < VIR_STORAGE_FILE_FEATURE_LAST; i++) { - ignore_value(virBitmapGetBit(def->features, i, &b)); - if (b) + if (virBitmapIsBitSet(def->features, i)) virBufferAsprintf(buf, "<%s/>\n", options->featureToString(i)); } diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index 7262c95..b5fe88c 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -1070,6 +1070,7 @@ virBitmapFree; virBitmapGetBit; virBitmapIsAllClear; virBitmapIsAllSet; +virBitmapIsBitSet; virBitmapLastSetBit; virBitmapNew; virBitmapNewCopy; diff --git a/src/libxl/libxl_domain.c b/src/libxl/libxl_domain.c index 9af5758..66ca988 100644 --- a/src/libxl/libxl_domain.c +++ b/src/libxl/libxl_domain.c @@ -1093,9 +1093,7 @@ libxlDomainSetVcpuAffinities(libxlDriverPrivatePtr driver, virDomainObjPtr vm) cpumask = def->cputune.vcpupin[vcpu]->cpumask; for (i = 0; i < virBitmapSize(cpumask); ++i) { - bool bit; - ignore_value(virBitmapGetBit(cpumask, i, &bit)); - if (bit) + if (virBitmapIsBitSet(cpumask, i)) VIR_USE_CPU(cpumap, i); } diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c index 88fa6ff..d4a8b9d 100644 --- a/src/libxl/libxl_driver.c +++ b/src/libxl/libxl_driver.c @@ -2051,7 +2051,6 @@ libxlDomainGetVcpuPinInfo(virDomainPtr dom, int ncpumaps, virBitmapPtr cpumask = NULL; int maxcpu, hostcpus, vcpu, pcpu, n, ret = -1; unsigned char *cpumap; - bool pinned; virCheckFlags(VIR_DOMAIN_AFFECT_LIVE | VIR_DOMAIN_AFFECT_CONFIG, -1); @@ -2100,9 +2099,7 @@ libxlDomainGetVcpuPinInfo(virDomainPtr dom, int ncpumaps, cpumask = vcpupin_list[n]->cpumask; cpumap = VIR_GET_CPUMAP(cpumaps, maplen, vcpu); for (pcpu = 0; pcpu < maxcpu; pcpu++) { - if (virBitmapGetBit(cpumask, pcpu, &pinned) < 0) - goto cleanup; - if (!pinned) + if (!virBitmapIsBitSet(cpumask, pcpu)) VIR_UNUSE_CPU(cpumap, pcpu); } } diff --git a/src/nodeinfo.c b/src/nodeinfo.c index 3a27c22..05256cc 100644 --- a/src/nodeinfo.c +++ b/src/nodeinfo.c @@ -1911,11 +1911,7 @@ nodeCapsInitNUMA(virCapsPtr caps) cpu = 0; for (i = 0; i < virBitmapSize(cpumap); i++) { - bool cpustate; - if (virBitmapGetBit(cpumap, i, &cpustate) < 0) - continue; - - if (cpustate) { + if (virBitmapIsBitSet(cpumap, i)) { if (virNodeCapsFillCPUInfo(i, cpus + cpu++) < 0) { topology_failed = true; virResetLastError(); diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index c513d46..ccf22f0 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -2048,12 +2048,7 @@ bool virQEMUCapsGet(virQEMUCapsPtr qemuCaps, virQEMUCapsFlags flag) { - bool b; - - if (!qemuCaps || virBitmapGetBit(qemuCaps->flags, flag, &b) < 0) - return false; - else - return b; + return qemuCaps && virBitmapIsBitSet(qemuCaps->flags, flag); } diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c index a4e75f5a5..9322571 100644 --- a/src/storage/storage_backend.c +++ b/src/storage/storage_backend.c @@ -807,7 +807,6 @@ virStorageBackendCreateQemuImgOpts(char **opts, virBitmapPtr features) { virBuffer buf = VIR_BUFFER_INITIALIZER; - bool b; size_t i; if (backingType) @@ -823,8 +822,7 @@ virStorageBackendCreateQemuImgOpts(char **opts, virBufferAsprintf(&buf, "compat=%s,", compat); if (features && format == VIR_STORAGE_FILE_QCOW2) { for (i = 0; i < VIR_STORAGE_FILE_FEATURE_LAST; i++) { - ignore_value(virBitmapGetBit(features, i, &b)); - if (b) { + if (virBitmapIsBitSet(features, i)) { switch ((virStorageFileFeature) i) { case VIR_STORAGE_FILE_FEATURE_LAZY_REFCOUNTS: if (STREQ_NULLABLE(compat, "0.10")) { diff --git a/src/util/virbitmap.c b/src/util/virbitmap.c index b531be5..5322bce 100644 --- a/src/util/virbitmap.c +++ b/src/util/virbitmap.c @@ -179,6 +179,24 @@ static bool virBitmapIsSet(virBitmapPtr bitmap, size_t b) } /** + * virBitmapIsBitSet: + * @bitmap: Pointer to bitmap + * @b: bit position to get + * + * Get setting of bit position @b in @bitmap. + * + * If @b is in the range of @bitmap, returns the value of the bit. + * Otherwise false is returned. + */ +bool virBitmapIsBitSet(virBitmapPtr bitmap, size_t b) +{ + if (bitmap->max_bit <= b) + return false; + + return virBitmapIsSet(bitmap, b); +} + +/** * virBitmapGetBit: * @bitmap: Pointer to bitmap * @b: bit position to get diff --git a/src/util/virbitmap.h b/src/util/virbitmap.h index 136e819..d326c6a 100644 --- a/src/util/virbitmap.h +++ b/src/util/virbitmap.h @@ -62,6 +62,11 @@ int virBitmapClearBit(virBitmapPtr bitmap, size_t b) ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK; /* + * Get bit @b in @bitmap. Returns false if b is out of range. + */ +bool virBitmapIsBitSet(virBitmapPtr bitmap, size_t b) + ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK; +/* * Get setting of bit position @b in @bitmap and store in @result */ int virBitmapGetBit(virBitmapPtr bitmap, size_t b, bool *result) diff --git a/src/util/vircgroup.c b/src/util/vircgroup.c index 6957e81..e54a079 100644 --- a/src/util/vircgroup.c +++ b/src/util/vircgroup.c @@ -3085,9 +3085,7 @@ virCgroupGetPercpuStats(virCgroupPtr group, need_cpus = MIN(total_cpus, start_cpu + ncpus); for (i = 0; i < need_cpus; i++) { - bool present; - ignore_value(virBitmapGetBit(cpumap, i, &present)); - if (!present) { + if (!virBitmapIsBitSet(cpumap, i)) { cpu_time = 0; } else if (virStrToLong_ull(pos, &pos, 10, &cpu_time) < 0) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", diff --git a/src/util/virdnsmasq.c b/src/util/virdnsmasq.c index 97652c0..6a2a2fb 100644 --- a/src/util/virdnsmasq.c +++ b/src/util/virdnsmasq.c @@ -874,10 +874,6 @@ dnsmasqCapsGetVersion(dnsmasqCapsPtr caps) bool dnsmasqCapsGet(dnsmasqCapsPtr caps, dnsmasqCapsFlags flag) { - bool b; - if (!caps || virBitmapGetBit(caps->flags, flag, &b) < 0) - return false; - else - return b; + return caps && virBitmapIsBitSet(caps->flags, flag); } diff --git a/src/util/virportallocator.c b/src/util/virportallocator.c index 578debf..fcd4f74 100644 --- a/src/util/virportallocator.c +++ b/src/util/virportallocator.c @@ -184,14 +184,7 @@ int virPortAllocatorAcquire(virPortAllocatorPtr pa, for (i = pa->start; i <= pa->end && !*port; i++) { bool used = false, v6used = false; - if (virBitmapGetBit(pa->bitmap, - i - pa->start, &used) < 0) { - virReportError(VIR_ERR_INTERNAL_ERROR, - _("Failed to query port %zu"), i); - goto cleanup; - } - - if (used) + if (virBitmapIsBitSet(pa->bitmap, i - pa->start)) continue; if (!(pa->flags & VIR_PORT_ALLOCATOR_SKIP_BIND_CHECK)) { @@ -269,12 +262,8 @@ int virPortAllocatorSetUsed(virPortAllocatorPtr pa, } if (value) { - bool used = false; - if (virBitmapGetBit(pa->bitmap, port - pa->start, &used) < 0) - virReportError(VIR_ERR_INTERNAL_ERROR, - _("Failed to query port %d"), port); - - if (used || virBitmapSetBit(pa->bitmap, port - pa->start) < 0) { + if (virBitmapIsBitSet(pa->bitmap, port - pa->start) || + virBitmapSetBit(pa->bitmap, port - pa->start) < 0) { virReportError(VIR_ERR_INTERNAL_ERROR, _("Failed to reserve port %d"), port); goto cleanup; diff --git a/src/util/virprocess.c b/src/util/virprocess.c index 342bf40..aa00a99 100644 --- a/src/util/virprocess.c +++ b/src/util/virprocess.c @@ -407,7 +407,6 @@ virProcessKillPainfully(pid_t pid, bool force) int virProcessSetAffinity(pid_t pid, virBitmapPtr map) { size_t i; - bool set = false; VIR_DEBUG("Set process affinity on %lld\n", (long long)pid); # ifdef CPU_ALLOC /* New method dynamically allocates cpu mask, allowing unlimted cpus */ @@ -433,9 +432,7 @@ int virProcessSetAffinity(pid_t pid, virBitmapPtr map) CPU_ZERO_S(masklen, mask); for (i = 0; i < virBitmapSize(map); i++) { - if (virBitmapGetBit(map, i, &set) < 0) - return -1; - if (set) + if (virBitmapIsBitSet(map, i)) CPU_SET_S(i, masklen, mask); } @@ -457,9 +454,7 @@ int virProcessSetAffinity(pid_t pid, virBitmapPtr map) CPU_ZERO(&mask); for (i = 0; i < virBitmapSize(map); i++) { - if (virBitmapGetBit(map, i, &set) < 0) - return -1; - if (set) + if (virBitmapIsBitSet(map, i)) CPU_SET(i, &mask); } diff --git a/src/xen/xen_driver.c b/src/xen/xen_driver.c index 5e6ef68..7577881 100644 --- a/src/xen/xen_driver.c +++ b/src/xen/xen_driver.c @@ -232,9 +232,7 @@ xenDomainUsedCpus(virDomainPtr dom, virDomainDefPtr def) cpumap, cpumaplen)) >= 0) { for (n = 0; n < ncpus; n++) { for (m = 0; m < priv->nbNodeCpus; m++) { - bool used; - ignore_value(virBitmapGetBit(cpulist, m, &used)); - if ((!used) && + if (!virBitmapIsBitSet(cpulist, m) && (VIR_CPU_USABLE(cpumap, cpumaplen, n, m))) { ignore_value(virBitmapSetBit(cpulist, m)); nb++; diff --git a/src/xen/xend_internal.c b/src/xen/xend_internal.c index ab03c1c..1722c3f 100644 --- a/src/xen/xend_internal.c +++ b/src/xen/xend_internal.c @@ -1089,10 +1089,7 @@ sexpr_to_xend_topology(const struct sexpr *root, virCapsPtr caps) } for (n = 0, cpu = 0; cpu < numCpus; cpu++) { - bool used; - - ignore_value(virBitmapGetBit(cpuset, cpu, &used)); - if (used) + if (virBitmapIsBitSet(cpuset, cpu)) cpuInfo[n++].id = cpu; } virBitmapFree(cpuset); -- 2.0.5