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server: Allow creating async object not associated with a queue. 

Signed-off-by: Jacek Caban <jacek@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Jacek Caban 2017-02-15 22:12:28 +01:00 committed by Alexandre Julliard
parent 13daca6f1a
commit 91bd81441f
5 changed files with 45 additions and 26 deletions
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41
server/async.c
View File

@ -114,7 +114,7 @@ static const struct object_ops async_queue_ops =
static inline void async_reselect( struct async *async )
{
if (async->queue->fd) fd_reselect_async( async->queue->fd, async->queue );
if (async->queue && async->queue->fd) fd_reselect_async( async->queue->fd, async->queue );
}
static void async_dump( struct object *obj, int verbose )
@ -137,13 +137,17 @@ static void async_destroy( struct object *obj )
assert( obj->ops == &async_ops );
list_remove( &async->process_entry );
list_remove( &async->queue_entry );
async_reselect( async );
if (async->queue)
{
list_remove( &async->queue_entry );
async_reselect( async );
release_object( async->queue );
}
if (async->timeout) remove_timeout_user( async->timeout );
if (async->event) release_object( async->event );
if (async->iosb) release_object( async->iosb );
release_object( async->queue );
release_object( async->thread );
}
@ -191,7 +195,7 @@ void async_terminate( struct async *async, unsigned int status )
else async_set_result( &async->obj, STATUS_SUCCESS, 0, 0, 0 );
async_reselect( async );
release_object( async ); /* so that it gets destroyed when the async is done */
if (async->queue) release_object( async ); /* so that it gets destroyed when the async is done */
}
/* callback for timeout on an async request */
@ -227,9 +231,18 @@ void free_async_queue( struct async_queue *queue )
release_object( queue );
}
void queue_async( struct async_queue *queue, struct async *async )
{
async->queue = (struct async_queue *)grab_object( queue );
grab_object( async );
list_add_tail( &queue->queue, &async->queue_entry );
if (queue->fd) set_fd_signaled( queue->fd, 0 );
}
/* create an async on a given queue of a fd */
struct async *create_async( struct thread *thread, struct async_queue *queue, const async_data_t *data,
struct iosb *iosb )
struct async *create_async( struct thread *thread, const async_data_t *data, struct iosb *iosb )
{
struct event *event = NULL;
struct async *async;
@ -248,18 +261,15 @@ struct async *create_async( struct thread *thread, struct async_queue *queue, co
async->status = STATUS_PENDING;
async->data = *data;
async->timeout = NULL;
async->queue = (struct async_queue *)grab_object( queue );
async->queue = NULL;
async->signaled = 0;
if (iosb) async->iosb = (struct iosb *)grab_object( iosb );
else async->iosb = NULL;
list_add_tail( &queue->queue, &async->queue_entry );
list_add_head( &thread->process->asyncs, &async->process_entry );
grab_object( async );
if (queue->fd) set_fd_signaled( queue->fd, 0 );
if (event) reset_event( event );
return async;
}
@ -318,7 +328,8 @@ void async_set_result( struct object *obj, unsigned int status, apc_param_t tota
async->status = status;
if (status == STATUS_MORE_PROCESSING_REQUIRED) return; /* don't report the completion */
if (async->data.cvalue) add_async_completion( async->queue, async->data.cvalue, status, total );
if (async->queue && async->data.cvalue)
add_async_completion( async->queue, async->data.cvalue, status, total );
if (apc)
{
apc_call_t data;
@ -331,7 +342,7 @@ void async_set_result( struct object *obj, unsigned int status, apc_param_t tota
thread_queue_apc( async->thread, NULL, &data );
}
if (async->event) set_event( async->event );
else if (async->queue->fd) set_fd_signaled( async->queue->fd, 1 );
else if (async->queue && async->queue->fd) set_fd_signaled( async->queue->fd, 1 );
async->signaled = 1;
wake_up( &async->obj, 0 );
}
@ -364,7 +375,7 @@ restart:
LIST_FOR_EACH_ENTRY( async, &process->asyncs, struct async, process_entry )
{
if (async->status == STATUS_CANCELLED) continue;
if ((!obj || (async->queue->fd && get_fd_user( async->queue->fd ) == obj)) &&
if ((!obj || (async->queue && async->queue->fd && get_fd_user( async->queue->fd ) == obj)) &&
(!thread || async->thread == thread) &&
(!iosb || async->data.iosb == iosb))
{

14
server/fd.c
View File

@ -2054,12 +2054,16 @@ struct async *fd_queue_async( struct fd *fd, const async_data_t *data, struct io
assert(0);
}
if ((async = create_async( current, queue, data, iosb )) && type != ASYNC_TYPE_WAIT)
if ((async = create_async( current, data, iosb )))
{
if (!fd->inode)
set_fd_events( fd, fd->fd_ops->get_poll_events( fd ) );
else /* regular files are always ready for read and write */
async_wake_up( queue, STATUS_ALERTED );
queue_async( queue, async );
if (type != ASYNC_TYPE_WAIT)
{
if (!fd->inode)
set_fd_events( fd, fd->fd_ops->get_poll_events( fd ) );
else /* regular files are always ready for read and write */
async_wake_up( queue, STATUS_ALERTED );
}
}
return async;
}

4
server/file.h
View File

@ -177,8 +177,8 @@ extern struct object *create_serial( struct fd *fd );
/* async I/O functions */
extern struct async_queue *create_async_queue( struct fd *fd );
extern void free_async_queue( struct async_queue *queue );
extern struct async *create_async( struct thread *thread, struct async_queue *queue,
const async_data_t *data, struct iosb *iosb );
extern struct async *create_async( struct thread *thread, const async_data_t *data, struct iosb *iosb );
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, client_ptr_t apc, client_ptr_t apc_arg );

6
server/named_pipe.c
View File

@ -838,6 +838,7 @@ static obj_handle_t named_pipe_device_ioctl( struct fd *fd, ioctl_code_t code,
struct named_pipe *pipe;
struct pipe_server *server;
struct unicode_str name;
timeout_t when;
if (size < sizeof(*buffer) ||
size < FIELD_OFFSET(FILE_PIPE_WAIT_FOR_BUFFER, Name[buffer->NameLength/sizeof(WCHAR)]))
@ -855,9 +856,10 @@ static obj_handle_t named_pipe_device_ioctl( struct fd *fd, ioctl_code_t code,
if (!pipe->waiters && !(pipe->waiters = create_async_queue( NULL ))) goto done;
if ((async = create_async( current, pipe->waiters, async_data, NULL )))
if ((async = create_async( current, async_data, NULL )))
{
timeout_t when = buffer->TimeoutSpecified ? buffer->Timeout.QuadPart : pipe->timeout;
queue_async( pipe->waiters, async );
when = buffer->TimeoutSpecified ? buffer->Timeout.QuadPart : pipe->timeout;
async_set_timeout( async, when, STATUS_IO_TIMEOUT );
if (blocking) wait_handle = alloc_handle( current->process, async, SYNCHRONIZE, 0 );
release_object( async );

6
server/sock.c
View File

@ -552,7 +552,8 @@ obj_handle_t sock_ioctl( struct fd *fd, ioctl_code_t code, const async_data_t *a
return 0;
}
if (!(ifchange_q = sock_get_ifchange_q( sock ))) return 0;
if (!(async = create_async( current, ifchange_q, async_data, NULL ))) return 0;
if (!(async = create_async( current, async_data, NULL ))) return 0;
queue_async( ifchange_q, async );
if (blocking) wait_handle = alloc_handle( current->process, async, SYNCHRONIZE, 0 );
release_object( async );
set_error( STATUS_PENDING );
@ -593,7 +594,8 @@ static void sock_queue_async( struct fd *fd, const async_data_t *data, int type,
return;
}
if (!(async = create_async( current, queue, data, NULL ))) return;
if (!(async = create_async( current, data, NULL ))) return;
queue_async( queue, async );
release_object( async );
sock_reselect( sock );