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qemu_monitor: Introduce handler for 'query-current-machine' command

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So far, this command returns a structure with only one member:
'wakeup-suspend-support'. But that's okay. It's what we are after
anyway.

Based-on-work-of: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Michal Privoznik 2019-04-24 18:16:28 -03:00
parent dca1b1d007
commit 70a4e3ee07
4 changed files with 74 additions and 0 deletions
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10
src/qemu/qemu_monitor.c
View File

@ -4472,3 +4472,13 @@ qemuMonitorGetPRManagerInfo(qemuMonitorPtr mon,
virHashFree(info);
return ret;
}
int
qemuMonitorGetCurrentMachineInfo(qemuMonitorPtr mon,
qemuMonitorCurrentMachineInfoPtr info)
{
QEMU_CHECK_MONITOR(mon);
return qemuMonitorJSONGetCurrentMachineInfo(mon, info);
}

9
src/qemu/qemu_monitor.h
View File

@ -1221,4 +1221,13 @@ struct _qemuMonitorPRManagerInfo {
int qemuMonitorGetPRManagerInfo(qemuMonitorPtr mon,
virHashTablePtr *retinfo);
typedef struct _qemuMonitorCurrentMachineInfo qemuMonitorCurrentMachineInfo;
typedef qemuMonitorCurrentMachineInfo *qemuMonitorCurrentMachineInfoPtr;
struct _qemuMonitorCurrentMachineInfo {
bool wakeupSuspendSupport;
};
int qemuMonitorGetCurrentMachineInfo(qemuMonitorPtr mon,
qemuMonitorCurrentMachineInfoPtr info);
#endif /* LIBVIRT_QEMU_MONITOR_H */

50
src/qemu/qemu_monitor_json.c
View File

@ -8459,3 +8459,53 @@ qemuMonitorJSONGetPRManagerInfo(qemuMonitorPtr mon,
return ret;
}
static int
qemuMonitorJSONExtractCurrentMachineInfo(virJSONValuePtr reply,
qemuMonitorCurrentMachineInfoPtr info)
{
virJSONValuePtr data;
data = virJSONValueObjectGetObject(reply, "return");
if (!data)
goto malformed;
if (virJSONValueObjectGetBoolean(data, "wakeup-suspend-support",
&info->wakeupSuspendSupport) < 0)
goto malformed;
return 0;
malformed:
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("malformed qemu-current-machine reply"));
return -1;
}
int
qemuMonitorJSONGetCurrentMachineInfo(qemuMonitorPtr mon,
qemuMonitorCurrentMachineInfoPtr info)
{
int ret = -1;
virJSONValuePtr cmd;
virJSONValuePtr reply = NULL;
if (!(cmd = qemuMonitorJSONMakeCommand("query-current-machine",
NULL)))
return -1;
if (qemuMonitorJSONCommand(mon, cmd, &reply) < 0)
goto cleanup;
if (qemuMonitorJSONCheckReply(cmd, reply, VIR_JSON_TYPE_OBJECT) < 0)
goto cleanup;
ret = qemuMonitorJSONExtractCurrentMachineInfo(reply, info);
cleanup:
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}

5
src/qemu/qemu_monitor_json.h
View File

@ -576,4 +576,9 @@ int qemuMonitorJSONGetPRManagerInfo(qemuMonitorPtr mon,
virHashTablePtr info)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
int
qemuMonitorJSONGetCurrentMachineInfo(qemuMonitorPtr mon,
qemuMonitorCurrentMachineInfoPtr info)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
#endif /* LIBVIRT_QEMU_MONITOR_JSON_H */