On Wed, Jun 17, 2015 at 11:56:17AM +0800, Luyao Huang wrote:
The helpers will be useful when implementing hotplug and coldplug of shared memory devices.Signed-off-by: Luyao Huang <lhu...@redhat.com> --- src/conf/domain_conf.c | 61 ++++++++++++++++++++++++++++++++++++++++++++++++ src/conf/domain_conf.h | 7 ++++++ src/libvirt_private.syms | 3 +++ 3 files changed, 71 insertions(+) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 306b718..8a8e4f7 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -13343,6 +13343,67 @@ virDomainMemoryRemove(virDomainDefPtr def, } +int +virDomainShmemInsert(virDomainDefPtr def, + virDomainShmemDefPtr shmem) +{ + return VIR_APPEND_ELEMENT(def->shmems, def->nshmems, shmem); +} + + +ssize_t +virDomainShmemFind(virDomainDefPtr def, + virDomainShmemDefPtr shmem) +{ + size_t i; + + for (i = 0; i < def->nshmems; i++) { + virDomainShmemDefPtr tmpshmem = def->shmems[i]; + + if (STRNEQ_NULLABLE(shmem->name, tmpshmem->name)) + continue; +
I think that you shouldn't be able to have two <shmem/> elements in the same domain, and since the name is mandatory, STREQ() should be enough to check whether you need to return current 'i'. Well, depending on whether you are unplugging it (you want everything that was specified to match) or plugging it in (if there's the same name, just reject it).
+ if (shmem->size != tmpshmem->size)
+ continue;
+
+ if (shmem->server.enabled != tmpshmem->server.enabled ||
+ (shmem->server.enabled &&
+ STRNEQ_NULLABLE(shmem->server.chr.data.nix.path,
+ tmpshmem->server.chr.data.nix.path)))
+ continue;
+
+ if (shmem->msi.enabled != tmpshmem->msi.enabled ||
+ (shmem->msi.enabled &&
+ (shmem->msi.vectors != tmpshmem->msi.vectors ||
+ shmem->msi.ioeventfd != tmpshmem->msi.ioeventfd)))
+ continue;
+
+ if (shmem->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE &&
+ !virDomainDeviceInfoAddressIsEqual(&shmem->info, &tmpshmem->info))
+ continue;
+
+ break;
+ }
+
+ if (i < def->nshmems)
+ return i;
+
+ return -1;
+}
+
+
+virDomainShmemDefPtr
+virDomainShmemRemove(virDomainDefPtr def,
+ size_t idx)
+{
+ virDomainShmemDefPtr ret = def->shmems[idx];
+
+ VIR_DELETE_ELEMENT(def->shmems, idx, def->nshmems);
+
+ return ret;
+}
+
+
char *
virDomainDefGetDefaultEmulator(virDomainDefPtr def,
virCapsPtr caps)
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index a4b1bf3..39bc928 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -2943,6 +2943,13 @@ int virDomainMemoryFindInactiveByDef(virDomainDefPtr def,
virDomainMemoryDefPtr mem)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_RETURN_CHECK;
+int virDomainShmemInsert(virDomainDefPtr def, virDomainShmemDefPtr shmem)
+ ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_RETURN_CHECK;
+ssize_t virDomainShmemFind(virDomainDefPtr def, virDomainShmemDefPtr shmem)
+ ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_RETURN_CHECK;
+virDomainShmemDefPtr virDomainShmemRemove(virDomainDefPtr def, size_t idx)
+ ATTRIBUTE_NONNULL(1);
+
VIR_ENUM_DECL(virDomainTaint)
VIR_ENUM_DECL(virDomainVirt)
VIR_ENUM_DECL(virDomainBoot)
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 3ceb4e3..6127f51 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -439,6 +439,9 @@ virDomainSaveStatus;
virDomainSaveXML;
virDomainSeclabelTypeFromString;
virDomainSeclabelTypeToString;
+virDomainShmemFind;
+virDomainShmemInsert;
+virDomainShmemRemove;
virDomainShutdownReasonTypeFromString;
virDomainShutdownReasonTypeToString;
virDomainShutoffReasonTypeFromString;
--
1.8.3.1
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