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[Qemu-devel] [RFC PATCH v2 10/23] COLO ctl: introduce is_slave() and is_
From: |
Yang Hongyang |
Subject: |
[Qemu-devel] [RFC PATCH v2 10/23] COLO ctl: introduce is_slave() and is_master() |
Date: |
Tue, 23 Sep 2014 17:23:42 +0800 |
is_slaver is to determine whether the QEMU instance is a
slaver(migration target) at runtime.
is_master is to determine whether the QEMU instance is a
master(migration starter) at runtime.
This 2 APIs will be used later.
Signed-off-by: Yang Hongyang <address@hidden>
---
migration-colo.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/migration-colo.c b/migration-colo.c
index 8610e15..37003f5 100644
--- a/migration-colo.c
+++ b/migration-colo.c
@@ -83,6 +83,12 @@ static __attribute__((unused)) int colo_compare_resume(void)
/* save */
+static __attribute__((unused)) bool colo_is_master(void)
+{
+ MigrationState *s = migrate_get_current();
+ return (s->state == MIG_STATE_COLO);
+}
+
static void *colo_thread(void *opaque)
{
MigrationState *s = opaque;
@@ -166,6 +172,11 @@ void colo_init_checkpointer(MigrationState *s)
static Coroutine *colo;
+static __attribute__((unused)) bool colo_is_slave(void)
+{
+ return colo != NULL;
+}
+
/*
* return:
* 0: start a checkpoint
--
1.9.1
- [Qemu-devel] [RFC PATCH v2 00/23] COarse-grain LOck-stepping(COLO) Virtual Machines for Non-stop Service, Yang Hongyang, 2014/09/23
- [Qemu-devel] [RFC PATCH v2 01/23] QEMUSizedBuffer/QEMUFile, Yang Hongyang, 2014/09/23
- [Qemu-devel] [RFC PATCH v2 02/23] configure: add CONFIG_COLO to switch COLO support, Yang Hongyang, 2014/09/23
- [Qemu-devel] [RFC PATCH v2 05/23] COLO info: use colo info to tell migration target colo is enabled, Yang Hongyang, 2014/09/23
- [Qemu-devel] [RFC PATCH v2 06/23] COLO save: integrate COLO checkpointed save into qemu migration, Yang Hongyang, 2014/09/23
- [Qemu-devel] [RFC PATCH v2 09/23] COLO ctl: implement API's that communicate with colo agent, Yang Hongyang, 2014/09/23
- [Qemu-devel] [RFC PATCH v2 07/23] COLO restore: integrate COLO checkpointed restore into qemu restore, Yang Hongyang, 2014/09/23
- [Qemu-devel] [RFC PATCH v2 08/23] COLO: disable qdev hotplug, Yang Hongyang, 2014/09/23
- [Qemu-devel] [RFC PATCH v2 10/23] COLO ctl: introduce is_slave() and is_master(),
Yang Hongyang <=
- [Qemu-devel] [RFC PATCH v2 03/23] COLO: introduce an api colo_supported() to indicate COLO support, Yang Hongyang, 2014/09/23
- [Qemu-devel] [RFC PATCH v2 04/23] COLO migration: add a migration capability 'colo', Yang Hongyang, 2014/09/23
- [Qemu-devel] [RFC PATCH v2 11/23] COLO ctl: implement colo checkpoint protocol, Yang Hongyang, 2014/09/23
- [Qemu-devel] [RFC PATCH v2 12/23] COLO ctl: add a RunState RUN_STATE_COLO, Yang Hongyang, 2014/09/23
- [Qemu-devel] [RFC PATCH v2 13/23] COLO ctl: implement colo save, Yang Hongyang, 2014/09/23
- [Qemu-devel] [RFC PATCH v2 14/23] COLO ctl: implement colo restore, Yang Hongyang, 2014/09/23
- [Qemu-devel] [RFC PATCH v2 16/23] COLO ram cache: implement colo ram cache on slave, Yang Hongyang, 2014/09/23
- [Qemu-devel] [RFC PATCH v2 17/23] HACK: trigger checkpoint every 500ms, Yang Hongyang, 2014/09/23
- [Qemu-devel] [RFC PATCH v2 15/23] COLO save: reuse migration bitmap under colo checkpoint, Yang Hongyang, 2014/09/23
- [Qemu-devel] [RFC PATCH v2 18/23] COLO nic: add command line switch, Yang Hongyang, 2014/09/23