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qemuMonitorBlockdevAdd: Take double pointer argument

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Modify qemuMonitorBlockdevAdd so that it takes a double pointer for the
@props argument so that it's cleared inside the call. This allows
writing cleaner callers.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This commit is contained in:
Peter Krempa 2020-02-06 13:13:32 +01:00
parent a592d589aa
commit db57e9daf5
5 changed files with 13 additions and 26 deletions
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14
src/qemu/qemu_block.c
View File

@ -1537,13 +1537,8 @@ static int
qemuBlockStorageSourceAttachApplyStorage(qemuMonitorPtr mon,
qemuBlockStorageSourceAttachDataPtr data)
{
int rv;
if (data->storageProps) {
rv = qemuMonitorBlockdevAdd(mon, data->storageProps);
data->storageProps = NULL;
if (rv < 0)
if (qemuMonitorBlockdevAdd(mon, &data->storageProps) < 0)
return -1;
data->storageAttached = true;
@ -1570,13 +1565,8 @@ static int
qemuBlockStorageSourceAttachApplyFormat(qemuMonitorPtr mon,
qemuBlockStorageSourceAttachDataPtr data)
{
int rv;
if (data->formatProps) {
rv = qemuMonitorBlockdevAdd(mon, data->formatProps);
data->formatProps = NULL;
if (rv < 0)
if (qemuMonitorBlockdevAdd(mon, &data->formatProps) < 0)
return -1;
data->formatAttached = true;

16
src/qemu/qemu_monitor.c
View File

@ -4400,23 +4400,19 @@ qemuMonitorBlockdevCreate(qemuMonitorPtr mon,
* @mon: monitor object
* @props: JSON object describing the blockdev to add
*
* Adds a new block device (BDS) to qemu. Note that @props is always consumed
* by this function and should not be accessed after calling this function.
* Adds a new block device (BDS) to qemu. Note that *@props is consumed
* and set to NULL on success.
*/
int
qemuMonitorBlockdevAdd(qemuMonitorPtr mon,
virJSONValuePtr props)
virJSONValuePtr *props)
{
VIR_DEBUG("props=%p (node-name=%s)", props,
NULLSTR(virJSONValueObjectGetString(props, "node-name")));
VIR_DEBUG("props=%p (node-name=%s)", *props,
NULLSTR(virJSONValueObjectGetString(*props, "node-name")));
QEMU_CHECK_MONITOR_GOTO(mon, error);
QEMU_CHECK_MONITOR(mon);
return qemuMonitorJSONBlockdevAdd(mon, props);
error:
virJSONValueFree(props);
return -1;
}

2
src/qemu/qemu_monitor.h
View File

@ -1330,7 +1330,7 @@ int qemuMonitorBlockdevCreate(qemuMonitorPtr mon,
virJSONValuePtr props);
int qemuMonitorBlockdevAdd(qemuMonitorPtr mon,
virJSONValuePtr props);
virJSONValuePtr *props);
int qemuMonitorBlockdevDel(qemuMonitorPtr mon,
const char *nodename);

5
src/qemu/qemu_monitor_json.c
View File

@ -8821,12 +8821,13 @@ qemuMonitorJSONBlockdevCreate(qemuMonitorPtr mon,
int
qemuMonitorJSONBlockdevAdd(qemuMonitorPtr mon,
virJSONValuePtr props)
virJSONValuePtr *props)
{
g_autoptr(virJSONValue) cmd = NULL;
g_autoptr(virJSONValue) reply = NULL;
virJSONValuePtr pr = g_steal_pointer(props);
if (!(cmd = qemuMonitorJSONMakeCommandInternal("blockdev-add", props)))
if (!(cmd = qemuMonitorJSONMakeCommandInternal("blockdev-add", pr)))
return -1;
if (qemuMonitorJSONCommand(mon, cmd, &reply) < 0)

2
src/qemu/qemu_monitor_json.h
View File

@ -597,7 +597,7 @@ int qemuMonitorJSONBlockdevCreate(qemuMonitorPtr mon,
ATTRIBUTE_NONNULL(1);
int qemuMonitorJSONBlockdevAdd(qemuMonitorPtr mon,
virJSONValuePtr props)
virJSONValuePtr *props)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
int qemuMonitorJSONBlockdevDel(qemuMonitorPtr mon,