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author | Emanuele Giuseppe Esposito <eesposit@redhat.com> | 2022-03-03 10:16:15 -0500 |
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committer | Kevin Wolf <kwolf@redhat.com> | 2022-03-04 18:18:26 +0100 |
commit | 32498092c486531b9e46a7c13912ce403858c96a (patch) | |
tree | f5d0c96ee22e410db2a5104b39df837406803c1d /include/qemu/job.h | |
parent | dc2b15ba086bfe7c9ae67d5c40b72f39d31b59de (diff) | |
download | qemu-32498092c486531b9e46a7c13912ce403858c96a.zip qemu-32498092c486531b9e46a7c13912ce403858c96a.tar.gz qemu-32498092c486531b9e46a7c13912ce403858c96a.tar.bz2 |
job.h: split function pointers in JobDriver
The job API will be handled separately in another serie.
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-31-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'include/qemu/job.h')
-rw-r--r-- | include/qemu/job.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/qemu/job.h b/include/qemu/job.h index 6e67b69..c105b31 100644 --- a/include/qemu/job.h +++ b/include/qemu/job.h @@ -169,6 +169,12 @@ typedef struct Job { * Callbacks and other information about a Job driver. */ struct JobDriver { + + /* + * These fields are initialized when this object is created, + * and are never changed afterwards + */ + /** Derived Job struct size */ size_t instance_size; @@ -184,9 +190,18 @@ struct JobDriver { * aborted. If it returns zero, the job moves into the WAITING state. If it * is the last job to complete in its transaction, all jobs in the * transaction move from WAITING to PENDING. + * + * This callback must be run in the job's context. */ int coroutine_fn (*run)(Job *job, Error **errp); + /* + * Functions run without regard to the BQL that may run in any + * arbitrary thread. These functions do not need to be thread-safe + * because the caller ensures that they are invoked from one + * thread at time. + */ + /** * If the callback is not NULL, it will be invoked when the job transitions * into the paused state. Paused jobs must not perform any asynchronous @@ -201,6 +216,13 @@ struct JobDriver { */ void coroutine_fn (*resume)(Job *job); + /* + * Global state (GS) API. These functions run under the BQL. + * + * See include/block/block-global-state.h for more information about + * the GS API. + */ + /** * Called when the job is resumed by the user (i.e. user_paused becomes * false). .user_resume is called before .resume. |