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qemu: Implement qemuMonitorRegister()

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Implement qemuMonitorRegister() as there is already a
qemuMonitorUnregister() function. This way it may be easier to
understand the code paths.

Signed-off-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
This commit is contained in:
Marc Hartmayer 2017-04-03 10:24:37 +02:00 committed by Michal Privoznik
parent b8cc509882
commit bae81da323
2 changed files with 31 additions and 9 deletions
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38
src/qemu/qemu_monitor.c
View File

@ -837,15 +837,7 @@ qemuMonitorOpenInternal(virDomainObjPtr vm,
virObjectLock(mon);
virObjectRef(mon);
if ((mon->watch = virEventAddHandle(mon->fd,
VIR_EVENT_HANDLE_HANGUP |
VIR_EVENT_HANDLE_ERROR |
VIR_EVENT_HANDLE_READABLE,
qemuMonitorIO,
mon,
virObjectFreeCallback)) < 0) {
virObjectUnref(mon);
if (!qemuMonitorRegister(mon)) {
virObjectUnlock(mon);
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("unable to register monitor events"));
@ -944,6 +936,34 @@ qemuMonitorOpenFD(virDomainObjPtr vm,
}
/**
* qemuMonitorRegister:
* @mon: QEMU monitor
*
* Registers the monitor in the event loop. The caller has to hold the
* lock for @mon.
*
* Returns true in case of success, false otherwise
*/
bool
qemuMonitorRegister(qemuMonitorPtr mon)
{
virObjectRef(mon);
if ((mon->watch = virEventAddHandle(mon->fd,
VIR_EVENT_HANDLE_HANGUP |
VIR_EVENT_HANDLE_ERROR |
VIR_EVENT_HANDLE_READABLE,
qemuMonitorIO,
mon,
virObjectFreeCallback)) < 0) {
virObjectUnref(mon);
return false;
}
return true;
}
void
qemuMonitorUnregister(qemuMonitorPtr mon)
{

2
src/qemu/qemu_monitor.h
View File

@ -296,6 +296,8 @@ qemuMonitorPtr qemuMonitorOpenFD(virDomainObjPtr vm,
void *opaque)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(4);
bool qemuMonitorRegister(qemuMonitorPtr mon)
ATTRIBUTE_NONNULL(1);
void qemuMonitorUnregister(qemuMonitorPtr mon)
ATTRIBUTE_NONNULL(1);
void qemuMonitorClose(qemuMonitorPtr mon);