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job: Create Job, JobDriver and job_create()

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This is the first step towards creating an infrastructure for generic
background jobs that aren't tied to a block device. For now, Job only
stores its ID and JobDriver, the rest stays in BlockJob.

The following patches will move over more parts of BlockJob to Job if
they are meaningful outside the context of a block job.

BlockJob.driver is now redundant, but this patch leaves it around to
avoid unnecessary churn. The next patches will get rid of almost all of
its uses anyway so that it can be removed later with much less churn.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
This commit is contained in:
Kevin Wolf 2018-04-12 17:29:59 +02:00
parent a81e0a825e
commit 33e9e9bd62
14 changed files with 169 additions and 44 deletions
Download patch file Download diff file Expand all files Collapse all files

4
tests/test-bdrv-drain.c
View file

@ -520,7 +520,9 @@ static void test_job_complete(BlockJob *job, Error **errp)
}
BlockJobDriver test_job_driver = {
.instance_size = sizeof(TestBlockJob),
.job_driver = {
.instance_size = sizeof(TestBlockJob),
},
.start = test_job_start,
.complete = test_job_complete,
};

4
tests/test-blockjob-txn.c
View file

@ -74,7 +74,9 @@ static void test_block_job_cb(void *opaque, int ret)
}
static const BlockJobDriver test_block_job_driver = {
.instance_size = sizeof(TestBlockJob),
.job_driver = {
.instance_size = sizeof(TestBlockJob),
},
.start = test_block_job_run,
};

12
tests/test-blockjob.c
View file

@ -17,7 +17,9 @@
#include "sysemu/block-backend.h"
static const BlockJobDriver test_block_job_driver = {
.instance_size = sizeof(BlockJob),
.job_driver = {
.instance_size = sizeof(BlockJob),
},
};
static void block_job_cb(void *opaque, int ret)
@ -38,9 +40,9 @@ static BlockJob *mk_job(BlockBackend *blk, const char *id,
g_assert_null(errp);
g_assert_nonnull(job);
if (id) {
g_assert_cmpstr(job->id, ==, id);
g_assert_cmpstr(job->job.id, ==, id);
} else {
g_assert_cmpstr(job->id, ==, blk_name(blk));
g_assert_cmpstr(job->job.id, ==, blk_name(blk));
}
} else {
g_assert_nonnull(errp);
@ -192,7 +194,9 @@ static void coroutine_fn cancel_job_start(void *opaque)
}
static const BlockJobDriver test_cancel_driver = {
.instance_size = sizeof(CancelJob),
.job_driver = {
.instance_size = sizeof(CancelJob),
},
.start = cancel_job_start,
.complete = cancel_job_complete,
};