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Add API for copying instances of the qemuCapsPtr object

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To allow each VM instance to record additional capabilities
without affecting other VMs, there needs to be a way to do
a deep copy of the qemuCapsPtr object
This commit is contained in:
Daniel P. Berrange 2012-09-11 13:42:20 +01:00
parent 116e2facde
commit 4dced75e79
2 changed files with 48 additions and 0 deletions
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47
src/qemu/qemu_capabilities.c
View File

@ -1727,6 +1727,53 @@ no_memory:
}
qemuCapsPtr qemuCapsNewCopy(qemuCapsPtr caps)
{
qemuCapsPtr ret = qemuCapsNew();
size_t i;
if (!ret)
return NULL;
virBitmapCopy(ret->flags, caps->flags);
ret->version = caps->version;
ret->kvmVersion = caps->kvmVersion;
if (caps->arch &&
!(ret->arch = strdup(caps->arch)))
goto no_memory;
if (VIR_ALLOC_N(ret->cpuDefinitions, caps->ncpuDefinitions) < 0)
goto no_memory;
ret->ncpuDefinitions = caps->ncpuDefinitions;
for (i = 0 ; i < caps->ncpuDefinitions ; i++) {
if (!(ret->cpuDefinitions[i] = strdup(caps->cpuDefinitions[i])))
goto no_memory;
}
if (VIR_ALLOC_N(ret->machineTypes, caps->nmachineTypes) < 0)
goto no_memory;
if (VIR_ALLOC_N(ret->machineAliases, caps->nmachineTypes) < 0)
goto no_memory;
ret->nmachineTypes = caps->nmachineTypes;
for (i = 0 ; i < caps->nmachineTypes ; i++) {
if (!(ret->machineTypes[i] = strdup(caps->machineTypes[i])))
goto no_memory;
if (caps->machineAliases[i] &&
!(ret->machineAliases[i] = strdup(caps->machineAliases[i])))
goto no_memory;
}
return ret;
no_memory:
virReportOOMError();
virObjectUnref(ret);
return NULL;
}
void qemuCapsDispose(void *obj)
{
qemuCapsPtr caps = obj;

1
src/qemu/qemu_capabilities.h
View File

@ -150,6 +150,7 @@ typedef struct _qemuCaps qemuCaps;
typedef qemuCaps *qemuCapsPtr;
qemuCapsPtr qemuCapsNew(void);
qemuCapsPtr qemuCapsNewCopy(qemuCapsPtr caps);
void qemuCapsSet(qemuCapsPtr caps,
enum qemuCapsFlags flag) ATTRIBUTE_NONNULL(1);