Minor wordsmithing...
On Monday, 2020-08-24 at 17:14:30 +08, Chuan Zheng wrote:
> add DirtyRateStatus to denote calculating status.
>
> Signed-off-by: Chuan Zheng <zhengch...@huawei.com>
> ---
> migration/dirtyrate.c | 22 ++++++++++++++++++++++
> qapi/migration.json | 17 +++++++++++++++++
> 2 files changed, 39 insertions(+)
>
> diff --git a/migration/dirtyrate.c b/migration/dirtyrate.c
> index 366f4e9..91987c5 100644
> --- a/migration/dirtyrate.c
> +++ b/migration/dirtyrate.c
> @@ -23,6 +23,19 @@
> #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 (atomic_cmpxchg(state, old_state, new_state) == old_state) {
> + return 0;
> + } else {
> + return -1;
> + }
> +}
> +
> +
> static void calculate_dirtyrate(struct DirtyRateConfig config)
> {
> /* todo */
> @@ -32,8 +45,17 @@ static void calculate_dirtyrate(struct DirtyRateConfig
> config)
> 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) {
> + return NULL;
> + }
>
> calculate_dirtyrate(config);
>
> + ret = dirtyrate_set_state(&CalculatingState, DIRTY_RATE_STATUS_MEASURING,
> + DIRTY_RATE_STATUS_MEASURED);
> return NULL;
> }
> diff --git a/qapi/migration.json b/qapi/migration.json
> index 5f6b061..d640165 100644
> --- a/qapi/migration.json
> +++ b/qapi/migration.json
> @@ -1720,3 +1720,20 @@
> ##
> { 'event': 'UNPLUG_PRIMARY',
> 'data': { 'device-id': 'str' } }
> +
> +##
> +# @DirtyRateStatus:
> +#
> +# An enumeration of dirtyrate status.
> +#
> +# @unstarted: query-dirtyrate thread is not initial.
@unstarted: the dirtyrate thread has not been started.
> +#
> +# @measuring: query-dirtyrate thread is created and start to measure.
@measuring: the dirtyrate thread is measuring.
> +#
> +# @measured: query-dirtyrate thread is end, we can get result.
@measured: the dirtyrate thread has measured and results are available.
> +#
> +# Since: 5.2
> +#
> +##
> +{ 'enum': 'DirtyRateStatus',
> + 'data': [ 'unstarted', 'measuring', 'measured'] }
> --
> 1.8.3.1
dme.
--
Tonight I'm gonna bury that horse in the ground.
