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qemu: Create helper qemuMonitorJSONGetBlockDevDevice

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This will fetch "this device" from the recently returned 'dev' and perform
common error checking for the paths that call it.
This commit is contained in:
John Ferlan 2016-10-03 15:04:32 -04:00
parent c6c5fc0b2b
commit 59539ebff3
1 changed files with 18 additions and 13 deletions
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31
src/qemu/qemu_monitor_json.c
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@ -1822,6 +1822,21 @@ qemuMonitorJSONGetBlockDev(virJSONValuePtr devices,
}
static const char *
qemuMonitorJSONGetBlockDevDevice(virJSONValuePtr dev)
{
const char *thisdev;
if (!(thisdev = virJSONValueObjectGetString(dev, "device"))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("query-block device entry was not in expected format"));
return NULL;
}
return thisdev;
}
int qemuMonitorJSONGetBlockInfo(qemuMonitorPtr mon,
virHashTablePtr table)
{
@ -1842,11 +1857,8 @@ int qemuMonitorJSONGetBlockInfo(qemuMonitorPtr mon,
if (!(dev = qemuMonitorJSONGetBlockDev(devices, i)))
goto cleanup;
if ((thisdev = virJSONValueObjectGetString(dev, "device")) == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("block info device entry was not in expected format"));
if (!(thisdev = qemuMonitorJSONGetBlockDevDevice(dev)))
goto cleanup;
}
thisdev = qemuAliasDiskDriveSkipPrefix(thisdev);
@ -2102,12 +2114,8 @@ qemuMonitorJSONBlockStatsUpdateCapacity(qemuMonitorPtr mon,
if (!(dev = qemuMonitorJSONGetBlockDev(devices, i)))
goto cleanup;
if (!(dev_name = virJSONValueObjectGetString(dev, "device"))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("query-block device entry was not "
"in expected format"));
if (!(dev_name = qemuMonitorJSONGetBlockDevDevice(dev)))
goto cleanup;
}
/* drive may be empty */
if (!(inserted = virJSONValueObjectGetObject(dev, "inserted")) ||
@ -4013,11 +4021,8 @@ qemuMonitorJSONDiskNameLookup(qemuMonitorPtr mon,
if (!(dev = qemuMonitorJSONGetBlockDev(devices, i)))
goto cleanup;
if (!(thisdev = virJSONValueObjectGetString(dev, "device"))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("block info device entry was not in expected format"));
if (!(thisdev = qemuMonitorJSONGetBlockDevDevice(dev)))
goto cleanup;
}
if (STREQ(thisdev, device)) {
if ((inserted = virJSONValueObjectGetObject(dev, "inserted")) &&