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qmp: add query-block-jobs

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Add query-block-jobs, which shows the progress of ongoing block device
operations.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Acked-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2012-01-18 14:40:49 +00:00 • committed by Kevin Wolf
parent 370521a1d6
commit fb5458cd10
6 changed files with 115 additions and 0 deletions
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33
blockdev.c
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@ -1006,3 +1006,36 @@ void qmp_block_job_cancel(const char *device, Error **errp)
trace_qmp_block_job_cancel(job);
block_job_cancel(job);
}
static void do_qmp_query_block_jobs_one(void *opaque, BlockDriverState *bs)
{
BlockJobInfoList **prev = opaque;
BlockJob *job = bs->job;
if (job) {
BlockJobInfoList *elem;
BlockJobInfo *info = g_new(BlockJobInfo, 1);
*info = (BlockJobInfo){
.type = g_strdup(job->job_type->job_type),
.device = g_strdup(bdrv_get_device_name(bs)),
.len = job->len,
.offset = job->offset,
.speed = job->speed,
};
elem = g_new0(BlockJobInfoList, 1);
elem->value = info;
(*prev)->next = elem;
*prev = elem;
}
}
BlockJobInfoList *qmp_query_block_jobs(Error **errp)
{
/* Dummy is a fake list element for holding the head pointer */
BlockJobInfoList dummy = {};
BlockJobInfoList *prev = &dummy;
bdrv_iterate(do_qmp_query_block_jobs_one, &prev);
return dummy.next;
}