Mostly just to simplify the interface, so that we don't need to use the return value to communicate this.
Signed-off-by: Zebediah Figura zfigura@codeweavers.com --- server/async.c | 23 +++++++++++++++++------ server/device.c | 4 ++-- server/file.h | 1 + 3 files changed, 20 insertions(+), 8 deletions(-)
diff --git a/server/async.c b/server/async.c index e8d95a62d4b..4e9f3253759 100644 --- a/server/async.c +++ b/server/async.c @@ -53,6 +53,7 @@ struct async unsigned int direct_result :1;/* a flag if we're passing result directly from request instead of APC */ unsigned int alerted :1; /* fd is signaled, but we are waiting for client-side I/O */ unsigned int terminated :1; /* async has been terminated */ + unsigned int unknown_status :1; /* initial status is not known yet */ struct completion *completion; /* completion associated with fd */ apc_param_t comp_key; /* completion key associated with fd */ unsigned int comp_flags; /* completion flags */ @@ -258,6 +259,7 @@ struct async *create_async( struct fd *fd, struct thread *thread, const async_da async->direct_result = 0; async->alerted = 0; async->terminated = 0; + async->unknown_status = 0; async->completion = fd_get_completion( fd, &async->comp_key ); async->comp_flags = 0; async->completion_callback = NULL; @@ -284,6 +286,7 @@ void set_async_pending( struct async *async, int signal ) if (!async->terminated) { async->pending = 1; + async->unknown_status = 0; if (signal && !async->signaled) { async->signaled = 1; @@ -295,14 +298,15 @@ void set_async_pending( struct async *async, int signal ) /* return async object status and wait handle to client */ obj_handle_t async_handoff( struct async *async, int success, data_size_t *result, int force_blocking ) { + if (async->unknown_status) + { + /* even the initial status is not known yet */ + set_error( STATUS_PENDING ); + return async->wait_handle; + } + if (!success) { - if (get_error() == STATUS_PENDING) - { - /* we don't know the result yet, so client needs to wait */ - async->direct_result = 0; - return async->wait_handle; - } close_handle( async->thread->process, async->wait_handle ); async->wait_handle = 0; return 0; @@ -381,6 +385,13 @@ void async_request_complete_alloc( struct async *async, unsigned int status, dat async_request_complete( async, status, result, out_size, out_data_copy ); }
+/* mark an async as having unknown initial status */ +void async_set_unknown_status( struct async *async ) +{ + async->unknown_status = 1; + async->direct_result = 0; +} + /* set the timeout of an async operation */ void async_set_timeout( struct async *async, timeout_t timeout, unsigned int status ) { diff --git a/server/device.c b/server/device.c index 29b36845e68..8892651d048 100644 --- a/server/device.c +++ b/server/device.c @@ -605,8 +605,8 @@ static int queue_irp( struct device_file *file, const irp_params_t *params, stru irp->async = (struct async *)grab_object( async ); add_irp_to_queue( file->device->manager, irp, current ); release_object( irp ); - set_error( STATUS_PENDING ); - return 0; + async_set_unknown_status( async ); + return 1; }
static enum server_fd_type device_file_get_fd_type( struct fd *fd ) diff --git a/server/file.h b/server/file.h index 8e42cd3704e..9b8a620359e 100644 --- a/server/file.h +++ b/server/file.h @@ -224,6 +224,7 @@ extern void queue_async( struct async_queue *queue, struct async *async ); extern void async_set_timeout( struct async *async, timeout_t timeout, unsigned int status ); extern void async_set_result( struct object *obj, unsigned int status, apc_param_t total ); extern void async_set_completion_callback( struct async *async, async_completion_callback func, void *private ); +extern void async_set_unknown_status( struct async *async ); extern void set_async_pending( struct async *async, int signal ); extern int async_waiting( struct async_queue *queue ); extern void async_terminate( struct async *async, unsigned int status );