mirror of
https://github.com/qemu/qemu.git
synced 2024-12-04 09:13:39 +08:00
7df3aa3083
add DirtyRateStatus to denote calculating status. Signed-off-by: Chuan Zheng <zhengchuan@huawei.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Li Qiang <liq3ea@gmail.com> Message-Id: <1600237327-33618-3-git-send-email-zhengchuan@huawei.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> atomic name fixup
65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
/*
|
|
* Dirtyrate implement code
|
|
*
|
|
* Copyright (c) 2020 HUAWEI TECHNOLOGIES CO.,LTD.
|
|
*
|
|
* Authors:
|
|
* Chuan Zheng <zhengchuan@huawei.com>
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2 or later.
|
|
* See the COPYING file in the top-level directory.
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "qapi/error.h"
|
|
#include "cpu.h"
|
|
#include "qemu/config-file.h"
|
|
#include "exec/memory.h"
|
|
#include "exec/ramblock.h"
|
|
#include "exec/target_page.h"
|
|
#include "qemu/rcu_queue.h"
|
|
#include "qapi/qapi-commands-migration.h"
|
|
#include "migration.h"
|
|
#include "dirtyrate.h"
|
|
|
|
static int CalculatingState = DIRTY_RATE_STATUS_UNSTARTED;
|
|
|
|
static int dirtyrate_set_state(int *state, int old_state, int new_state)
|
|
{
|
|
assert(new_state < DIRTY_RATE_STATUS__MAX);
|
|
if (qatomic_cmpxchg(state, old_state, new_state) == old_state) {
|
|
return 0;
|
|
} else {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
|
|
static void calculate_dirtyrate(struct DirtyRateConfig config)
|
|
{
|
|
/* todo */
|
|
return;
|
|
}
|
|
|
|
void *get_dirtyrate_thread(void *arg)
|
|
{
|
|
struct DirtyRateConfig config = *(struct DirtyRateConfig *)arg;
|
|
int ret;
|
|
|
|
ret = dirtyrate_set_state(&CalculatingState, DIRTY_RATE_STATUS_UNSTARTED,
|
|
DIRTY_RATE_STATUS_MEASURING);
|
|
if (ret == -1) {
|
|
error_report("change dirtyrate state failed.");
|
|
return NULL;
|
|
}
|
|
|
|
calculate_dirtyrate(config);
|
|
|
|
ret = dirtyrate_set_state(&CalculatingState, DIRTY_RATE_STATUS_MEASURING,
|
|
DIRTY_RATE_STATUS_MEASURED);
|
|
if (ret == -1) {
|
|
error_report("change dirtyrate state failed.");
|
|
}
|
|
return NULL;
|
|
}
|