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snapshot: add qemu capability for 'transaction' command

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We need a capability bit to gracefully error out if some of the
additions in future patches can't be implemented by the running qemu.

* src/qemu/qemu_capabilities.h (QEMU_CAPS_TRANSACTION): New cap.
* src/qemu/qemu_capabilities.c (qemuCaps): Name it.
* src/qemu/qemu_monitor_json.c (qemuMonitorJSONCheckCommands): Set
it.
This commit is contained in:
Eric Blake 2012-03-14 16:29:21 -06:00
parent 98ada9ab70
commit 311357d9e3
3 changed files with 5 additions and 0 deletions
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1
src/qemu/qemu_capabilities.c
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@ -155,6 +155,7 @@ VIR_ENUM_IMPL(qemuCaps, QEMU_CAPS_LAST,
"system_wakeup", "system_wakeup",
"scsi-disk.channel", "scsi-disk.channel",
"scsi-block", "scsi-block",
"transaction",
); );
struct qemu_feature_flags { struct qemu_feature_flags {

1
src/qemu/qemu_capabilities.h
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@ -123,6 +123,7 @@ enum qemuCapsFlags {
QEMU_CAPS_WAKEUP = 86, /* system_wakeup monitor command */ QEMU_CAPS_WAKEUP = 86, /* system_wakeup monitor command */
QEMU_CAPS_SCSI_DISK_CHANNEL = 87, /* Is scsi-disk.channel available? */ QEMU_CAPS_SCSI_DISK_CHANNEL = 87, /* Is scsi-disk.channel available? */
QEMU_CAPS_SCSI_BLOCK = 88, /* -device scsi-block */ QEMU_CAPS_SCSI_BLOCK = 88, /* -device scsi-block */
QEMU_CAPS_TRANSACTION = 89, /* transaction monitor command */
QEMU_CAPS_LAST, /* this must always be the last item */ QEMU_CAPS_LAST, /* this must always be the last item */
}; };

3
src/qemu/qemu_monitor_json.c
View File

@ -929,6 +929,9 @@ qemuMonitorJSONCheckCommands(qemuMonitorPtr mon,
if (STREQ(name, "system_wakeup")) if (STREQ(name, "system_wakeup"))
qemuCapsSet(qemuCaps, QEMU_CAPS_WAKEUP); qemuCapsSet(qemuCaps, QEMU_CAPS_WAKEUP);
if (STREQ(name, "transaction"))
qemuCapsSet(qemuCaps, QEMU_CAPS_TRANSACTION);
} }
ret = 0; ret = 0;