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author | Daniel P. Berrange <berrange@redhat.com> | 2016-08-11 14:36:21 +0100 |
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committer | Daniel P. Berrange <berrange@redhat.com> | 2017-01-23 15:32:18 +0000 |
commit | 52dd99e8a4df8ace2fdf8cd173a3338357776bff (patch) | |
tree | a1369d3a1df1b5d757089e77ed992fa5e2b5c32e | |
parent | e8c8adecada7a3e59bffcc0207327aae472ffcda (diff) | |
download | qemu-52dd99e8a4df8ace2fdf8cd173a3338357776bff.zip qemu-52dd99e8a4df8ace2fdf8cd173a3338357776bff.tar.gz qemu-52dd99e8a4df8ace2fdf8cd173a3338357776bff.tar.bz2 |
io: add ability to associate an opaque "result" with with a task
Currently there is no data associated with a successful
task completion. This adds an opaque pointer to the task
to store an arbitrary result.
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
-rw-r--r-- | include/io/task.h | 27 | ||||
-rw-r--r-- | io/task.c | 20 |
2 files changed, 47 insertions, 0 deletions
diff --git a/include/io/task.h b/include/io/task.h index 1407747..ece1372 100644 --- a/include/io/task.h +++ b/include/io/task.h @@ -240,6 +240,33 @@ void qio_task_abort(QIOTask *task, /** + * qio_task_set_result_pointer: + * @task: the task struct + * @result: pointer to the result data + * + * Associate an opaque result with the task, + * which can later be retrieved with the + * qio_task_get_result_pointer() method + * + */ +void qio_task_set_result_pointer(QIOTask *task, + gpointer result, + GDestroyNotify notify); + + +/** + * qio_task_get_result_pointer: + * @task: the task struct + * + * Retrieve the opaque result data associated + * with the task, if any. + * + * Returns: the task result, or NULL + */ +gpointer qio_task_get_result_pointer(QIOTask *task); + + +/** * qio_task_get_source: * @task: the task struct * @@ -29,6 +29,8 @@ struct QIOTask { QIOTaskFunc func; gpointer opaque; GDestroyNotify destroy; + gpointer result; + GDestroyNotify destroyResult; }; @@ -57,6 +59,9 @@ static void qio_task_free(QIOTask *task) if (task->destroy) { task->destroy(task->opaque); } + if (task->destroyResult) { + task->destroyResult(task->result); + } object_unref(task->source); g_free(task); @@ -154,6 +159,21 @@ void qio_task_abort(QIOTask *task, } +void qio_task_set_result_pointer(QIOTask *task, + gpointer result, + GDestroyNotify destroy) +{ + task->result = result; + task->destroyResult = destroy; +} + + +gpointer qio_task_get_result_pointer(QIOTask *task) +{ + return task->result; +} + + Object *qio_task_get_source(QIOTask *task) { return task->source; |