[libvirt] [PATCH] qemu: Correctly wait for spice to migrate

Currently we query-spice after the main migration has completed before moving to next state. Qemu reports this as boolean (not enclosed within quotes). Therefore it is not correct to use virJSONValueObjectGetString but virJSONValueObjectGetBoolean instead. --- Meanwhile, this is does no harm for now, since we fail to set QEMU_CAPS_SEAMLESS_MIGRATION as we use querying capabilities on the QMP monitor where 'seamless-migration=[on|off]' cmd line option is not advertised. However, on some distros where we still compute capabilities by parsing '-help' output we fail. src/qemu/qemu_monitor_json.c | 5 +---- 1 files changed, 1 insertions(+), 4 deletions(-) diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c index 2daf8ea..8087e4f 100644 --- a/src/qemu/qemu_monitor_json.c +++ b/src/qemu/qemu_monitor_json.c @@ -2399,7 +2399,6 @@ qemuMonitorJSONSpiceGetMigrationStatusReply(virJSONValuePtr reply, bool *spice_migrated) { virJSONValuePtr ret; - const char *migrated_str; if (!(ret = virJSONValueObjectGet(reply, "return"))) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", @@ -2407,13 +2406,11 @@ qemuMonitorJSONSpiceGetMigrationStatusReply(virJSONValuePtr reply, return -1; } - if (!(migrated_str = virJSONValueObjectGetString(ret, "migrated"))) { + if (virJSONValueObjectGetBoolean(ret, "migrated", spice_migrated) < 0) { /* Deliberately don't report error here as we are * probably dealing with older qemu which doesn't * report this yet. Pretend spice is migrated. */ *spice_migrated = true; - } else { - *spice_migrated = STREQ(migrated_str, "true"); } return 0; -- 1.7.8.6

On 10/18/2012 09:47 AM, Michal Privoznik wrote:
Currently we query-spice after the main migration has completed before moving to next state. Qemu reports this as boolean (not enclosed within quotes). Therefore it is not correct to use virJSONValueObjectGetString but virJSONValueObjectGetBoolean instead. ---
Meanwhile, this is does no harm for now, since we fail to set QEMU_CAPS_SEAMLESS_MIGRATION as we use querying capabilities on the QMP monitor where 'seamless-migration=[on|off]' cmd line option is not advertised. However, on some distros where we still compute capabilities by parsing '-help' output we fail.
src/qemu/qemu_monitor_json.c | 5 +---- 1 files changed, 1 insertions(+), 4 deletions(-)
diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c index 2daf8ea..8087e4f 100644 --- a/src/qemu/qemu_monitor_json.c +++ b/src/qemu/qemu_monitor_json.c @@ -2399,7 +2399,6 @@ qemuMonitorJSONSpiceGetMigrationStatusReply(virJSONValuePtr reply, bool *spice_migrated) { virJSONValuePtr ret; - const char *migrated_str;
if (!(ret = virJSONValueObjectGet(reply, "return"))) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", @@ -2407,13 +2406,11 @@ qemuMonitorJSONSpiceGetMigrationStatusReply(virJSONValuePtr reply, return -1; }
- if (!(migrated_str = virJSONValueObjectGetString(ret, "migrated"))) { + if (virJSONValueObjectGetBoolean(ret, "migrated", spice_migrated) < 0) { /* Deliberately don't report error here as we are * probably dealing with older qemu which doesn't * report this yet. Pretend spice is migrated. */ *spice_migrated = true; - } else { - *spice_migrated = STREQ(migrated_str, "true"); }
return 0;
ACK, Martin

On 18.10.2012 10:19, Martin Kletzander wrote:
On 10/18/2012 09:47 AM, Michal Privoznik wrote:
Currently we query-spice after the main migration has completed before moving to next state. Qemu reports this as boolean (not enclosed within quotes). Therefore it is not correct to use virJSONValueObjectGetString but virJSONValueObjectGetBoolean instead. ---
Meanwhile, this is does no harm for now, since we fail to set QEMU_CAPS_SEAMLESS_MIGRATION as we use querying capabilities on the QMP monitor where 'seamless-migration=[on|off]' cmd line option is not advertised. However, on some distros where we still compute capabilities by parsing '-help' output we fail.
src/qemu/qemu_monitor_json.c | 5 +---- 1 files changed, 1 insertions(+), 4 deletions(-)
diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c index 2daf8ea..8087e4f 100644 --- a/src/qemu/qemu_monitor_json.c +++ b/src/qemu/qemu_monitor_json.c @@ -2399,7 +2399,6 @@ qemuMonitorJSONSpiceGetMigrationStatusReply(virJSONValuePtr reply, bool *spice_migrated) { virJSONValuePtr ret; - const char *migrated_str;
if (!(ret = virJSONValueObjectGet(reply, "return"))) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", @@ -2407,13 +2406,11 @@ qemuMonitorJSONSpiceGetMigrationStatusReply(virJSONValuePtr reply, return -1; }
- if (!(migrated_str = virJSONValueObjectGetString(ret, "migrated"))) { + if (virJSONValueObjectGetBoolean(ret, "migrated", spice_migrated) < 0) { /* Deliberately don't report error here as we are * probably dealing with older qemu which doesn't * report this yet. Pretend spice is migrated. */ *spice_migrated = true; - } else { - *spice_migrated = STREQ(migrated_str, "true"); }
return 0;
ACK,
Martin
Thanks, pushed. Michal
participants (2)
-
Martin Kletzander
-
Michal Privoznik