2 * Server-side pipe management
4 * Copyright (C) 1998 Alexandre Julliard
5 * Copyright (C) 2001 Mike McCormack
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
26 #include "wine/port.h"
35 #include <sys/types.h>
36 #ifdef HAVE_SYS_SOCKET_H
37 #include <sys/socket.h>
46 #define WIN32_NO_STATUS
62 ps_disconnected_server
,
70 struct object obj
; /* object header */
71 struct fd
*fd
; /* pipe file descriptor */
72 struct fd
*ioctl_fd
; /* file descriptor for ioctls when not connected */
73 struct list entry
; /* entry in named pipe servers list */
74 enum pipe_state state
; /* server state */
75 struct pipe_client
*client
; /* client that this server is connected to */
76 struct named_pipe
*pipe
;
77 struct timeout_user
*flush_poll
;
79 unsigned int options
; /* pipe options */
84 struct object obj
; /* object header */
85 struct fd
*fd
; /* pipe file descriptor */
86 struct pipe_server
*server
; /* server that this client is connected to */
87 unsigned int flags
; /* file flags */
92 struct object obj
; /* object header */
94 unsigned int maxinstances
;
97 unsigned int instances
;
99 struct list servers
; /* list of servers using this pipe */
100 struct async_queue
*waiters
; /* list of clients waiting to connect */
103 struct named_pipe_device
105 struct object obj
; /* object header */
106 struct fd
*fd
; /* pseudo-fd for ioctls */
107 struct namespace *pipes
; /* named pipe namespace */
110 static void named_pipe_dump( struct object
*obj
, int verbose
);
111 static unsigned int named_pipe_map_access( struct object
*obj
, unsigned int access
);
112 static struct object
*named_pipe_open_file( struct object
*obj
, unsigned int access
,
113 unsigned int sharing
, unsigned int options
);
114 static void named_pipe_destroy( struct object
*obj
);
116 static const struct object_ops named_pipe_ops
=
118 sizeof(struct named_pipe
), /* size */
119 named_pipe_dump
, /* dump */
120 no_add_queue
, /* add_queue */
121 NULL
, /* remove_queue */
123 NULL
, /* satisfied */
124 no_signal
, /* signal */
125 no_get_fd
, /* get_fd */
126 named_pipe_map_access
, /* map_access */
127 no_lookup_name
, /* lookup_name */
128 named_pipe_open_file
, /* open_file */
129 no_close_handle
, /* close_handle */
130 named_pipe_destroy
/* destroy */
133 /* functions common to server and client */
134 static unsigned int pipe_map_access( struct object
*obj
, unsigned int access
);
136 /* server end functions */
137 static void pipe_server_dump( struct object
*obj
, int verbose
);
138 static struct fd
*pipe_server_get_fd( struct object
*obj
);
139 static void pipe_server_destroy( struct object
*obj
);
140 static void pipe_server_flush( struct fd
*fd
, struct event
**event
);
141 static enum server_fd_type
pipe_server_get_fd_type( struct fd
*fd
);
142 static void pipe_server_ioctl( struct fd
*fd
, ioctl_code_t code
, const async_data_t
*async
,
143 const void *data
, data_size_t size
);
145 static const struct object_ops pipe_server_ops
=
147 sizeof(struct pipe_server
), /* size */
148 pipe_server_dump
, /* dump */
149 add_queue
, /* add_queue */
150 remove_queue
, /* remove_queue */
151 default_fd_signaled
, /* signaled */
152 no_satisfied
, /* satisfied */
153 no_signal
, /* signal */
154 pipe_server_get_fd
, /* get_fd */
155 pipe_map_access
, /* map_access */
156 no_lookup_name
, /* lookup_name */
157 no_open_file
, /* open_file */
158 fd_close_handle
, /* close_handle */
159 pipe_server_destroy
/* destroy */
162 static const struct fd_ops pipe_server_fd_ops
=
164 default_fd_get_poll_events
, /* get_poll_events */
165 default_poll_event
, /* poll_event */
166 pipe_server_flush
, /* flush */
167 pipe_server_get_fd_type
, /* get_fd_type */
168 pipe_server_ioctl
, /* ioctl */
169 default_fd_queue_async
, /* queue_async */
170 default_fd_reselect_async
, /* reselect_async */
171 default_fd_cancel_async
, /* cancel_async */
174 /* client end functions */
175 static void pipe_client_dump( struct object
*obj
, int verbose
);
176 static struct fd
*pipe_client_get_fd( struct object
*obj
);
177 static void pipe_client_destroy( struct object
*obj
);
178 static void pipe_client_flush( struct fd
*fd
, struct event
**event
);
179 static enum server_fd_type
pipe_client_get_fd_type( struct fd
*fd
);
181 static const struct object_ops pipe_client_ops
=
183 sizeof(struct pipe_client
), /* size */
184 pipe_client_dump
, /* dump */
185 add_queue
, /* add_queue */
186 remove_queue
, /* remove_queue */
187 default_fd_signaled
, /* signaled */
188 no_satisfied
, /* satisfied */
189 no_signal
, /* signal */
190 pipe_client_get_fd
, /* get_fd */
191 pipe_map_access
, /* map_access */
192 no_lookup_name
, /* lookup_name */
193 no_open_file
, /* open_file */
194 fd_close_handle
, /* close_handle */
195 pipe_client_destroy
/* destroy */
198 static const struct fd_ops pipe_client_fd_ops
=
200 default_fd_get_poll_events
, /* get_poll_events */
201 default_poll_event
, /* poll_event */
202 pipe_client_flush
, /* flush */
203 pipe_client_get_fd_type
, /* get_fd_type */
204 default_fd_ioctl
, /* ioctl */
205 default_fd_queue_async
, /* queue_async */
206 default_fd_reselect_async
, /* reselect_async */
207 default_fd_cancel_async
/* cancel_async */
210 static void named_pipe_device_dump( struct object
*obj
, int verbose
);
211 static struct fd
*named_pipe_device_get_fd( struct object
*obj
);
212 static struct object
*named_pipe_device_lookup_name( struct object
*obj
,
213 struct unicode_str
*name
, unsigned int attr
);
214 static struct object
*named_pipe_device_open_file( struct object
*obj
, unsigned int access
,
215 unsigned int sharing
, unsigned int options
);
216 static void named_pipe_device_destroy( struct object
*obj
);
217 static enum server_fd_type
named_pipe_device_get_fd_type( struct fd
*fd
);
218 static void named_pipe_device_ioctl( struct fd
*fd
, ioctl_code_t code
, const async_data_t
*async_data
,
219 const void *data
, data_size_t size
);
221 static const struct object_ops named_pipe_device_ops
=
223 sizeof(struct named_pipe_device
), /* size */
224 named_pipe_device_dump
, /* dump */
225 no_add_queue
, /* add_queue */
226 NULL
, /* remove_queue */
228 no_satisfied
, /* satisfied */
229 no_signal
, /* signal */
230 named_pipe_device_get_fd
, /* get_fd */
231 no_map_access
, /* map_access */
232 named_pipe_device_lookup_name
, /* lookup_name */
233 named_pipe_device_open_file
, /* open_file */
234 fd_close_handle
, /* close_handle */
235 named_pipe_device_destroy
/* destroy */
238 static const struct fd_ops named_pipe_device_fd_ops
=
240 default_fd_get_poll_events
, /* get_poll_events */
241 default_poll_event
, /* poll_event */
242 no_flush
, /* flush */
243 named_pipe_device_get_fd_type
, /* get_fd_type */
244 named_pipe_device_ioctl
, /* ioctl */
245 default_fd_queue_async
, /* queue_async */
246 default_fd_reselect_async
, /* reselect_async */
247 default_fd_cancel_async
/* cancel_async */
250 static void named_pipe_dump( struct object
*obj
, int verbose
)
252 struct named_pipe
*pipe
= (struct named_pipe
*) obj
;
253 assert( obj
->ops
== &named_pipe_ops
);
254 fprintf( stderr
, "Named pipe " );
255 dump_object_name( &pipe
->obj
);
256 fprintf( stderr
, "\n" );
259 static unsigned int named_pipe_map_access( struct object
*obj
, unsigned int access
)
261 if (access
& GENERIC_READ
) access
|= STANDARD_RIGHTS_READ
;
262 if (access
& GENERIC_WRITE
) access
|= STANDARD_RIGHTS_WRITE
| FILE_CREATE_PIPE_INSTANCE
;
263 if (access
& GENERIC_EXECUTE
) access
|= STANDARD_RIGHTS_EXECUTE
;
264 if (access
& GENERIC_ALL
) access
|= STANDARD_RIGHTS_ALL
;
265 return access
& ~(GENERIC_READ
| GENERIC_WRITE
| GENERIC_EXECUTE
| GENERIC_ALL
);
268 static void pipe_server_dump( struct object
*obj
, int verbose
)
270 struct pipe_server
*server
= (struct pipe_server
*) obj
;
271 assert( obj
->ops
== &pipe_server_ops
);
272 fprintf( stderr
, "Named pipe server pipe=%p state=%d\n", server
->pipe
, server
->state
);
275 static void pipe_client_dump( struct object
*obj
, int verbose
)
277 struct pipe_client
*client
= (struct pipe_client
*) obj
;
278 assert( obj
->ops
== &pipe_client_ops
);
279 fprintf( stderr
, "Named pipe client server=%p\n", client
->server
);
282 static void named_pipe_destroy( struct object
*obj
)
284 struct named_pipe
*pipe
= (struct named_pipe
*) obj
;
286 assert( list_empty( &pipe
->servers
) );
287 assert( !pipe
->instances
);
288 free_async_queue( pipe
->waiters
);
291 static struct fd
*pipe_client_get_fd( struct object
*obj
)
293 struct pipe_client
*client
= (struct pipe_client
*) obj
;
295 return (struct fd
*) grab_object( client
->fd
);
296 set_error( STATUS_PIPE_DISCONNECTED
);
300 static void set_server_state( struct pipe_server
*server
, enum pipe_state state
)
302 server
->state
= state
;
306 case ps_connected_server
:
307 case ps_wait_disconnect
:
308 assert( server
->fd
);
312 assert( !server
->fd
);
313 set_no_fd_status( server
->ioctl_fd
, STATUS_PIPE_LISTENING
);
315 case ps_disconnected_server
:
316 case ps_wait_connect
:
317 assert( !server
->fd
);
318 set_no_fd_status( server
->ioctl_fd
, STATUS_PIPE_DISCONNECTED
);
323 static struct fd
*pipe_server_get_fd( struct object
*obj
)
325 struct pipe_server
*server
= (struct pipe_server
*) obj
;
327 return (struct fd
*)grab_object( server
->fd
? server
->fd
: server
->ioctl_fd
);
331 static void notify_empty( struct pipe_server
*server
)
333 if (!server
->flush_poll
)
335 assert( server
->state
== ps_connected_server
);
336 assert( server
->event
);
337 remove_timeout_user( server
->flush_poll
);
338 server
->flush_poll
= NULL
;
339 set_event( server
->event
);
340 release_object( server
->event
);
341 server
->event
= NULL
;
344 static void do_disconnect( struct pipe_server
*server
)
346 /* we may only have a server fd, if the client disconnected */
349 assert( server
->client
->server
== server
);
350 assert( server
->client
->fd
);
351 release_object( server
->client
->fd
);
352 server
->client
->fd
= NULL
;
354 assert( server
->fd
);
355 shutdown( get_unix_fd( server
->fd
), SHUT_RDWR
);
356 release_object( server
->fd
);
360 static unsigned int pipe_map_access( struct object
*obj
, unsigned int access
)
362 if (access
& GENERIC_READ
) access
|= FILE_GENERIC_READ
;
363 if (access
& GENERIC_WRITE
) access
|= FILE_GENERIC_WRITE
;
364 if (access
& GENERIC_EXECUTE
) access
|= FILE_GENERIC_EXECUTE
;
365 if (access
& GENERIC_ALL
) access
|= FILE_ALL_ACCESS
;
366 return access
& ~(GENERIC_READ
| GENERIC_WRITE
| GENERIC_EXECUTE
| GENERIC_ALL
);
369 static void pipe_server_destroy( struct object
*obj
)
371 struct pipe_server
*server
= (struct pipe_server
*)obj
;
373 assert( obj
->ops
== &pipe_server_ops
);
377 notify_empty( server
);
378 do_disconnect( server
);
383 server
->client
->server
= NULL
;
384 server
->client
= NULL
;
387 assert( server
->pipe
->instances
);
388 server
->pipe
->instances
--;
390 if (server
->ioctl_fd
) release_object( server
->ioctl_fd
);
391 list_remove( &server
->entry
);
392 release_object( server
->pipe
);
395 static void pipe_client_destroy( struct object
*obj
)
397 struct pipe_client
*client
= (struct pipe_client
*)obj
;
398 struct pipe_server
*server
= client
->server
;
400 assert( obj
->ops
== &pipe_client_ops
);
404 notify_empty( server
);
406 switch(server
->state
)
408 case ps_connected_server
:
409 /* Don't destroy the server's fd here as we can't
410 do a successful flush without it. */
411 set_server_state( server
, ps_wait_disconnect
);
413 case ps_disconnected_server
:
414 set_server_state( server
, ps_wait_connect
);
418 case ps_wait_disconnect
:
419 case ps_wait_connect
:
422 assert( server
->client
);
423 server
->client
= NULL
;
424 client
->server
= NULL
;
426 if (client
->fd
) release_object( client
->fd
);
429 static void named_pipe_device_dump( struct object
*obj
, int verbose
)
431 assert( obj
->ops
== &named_pipe_device_ops
);
432 fprintf( stderr
, "Named pipe device\n" );
435 static struct fd
*named_pipe_device_get_fd( struct object
*obj
)
437 struct named_pipe_device
*device
= (struct named_pipe_device
*)obj
;
438 return (struct fd
*)grab_object( device
->fd
);
441 static struct object
*named_pipe_device_lookup_name( struct object
*obj
, struct unicode_str
*name
,
444 struct named_pipe_device
*device
= (struct named_pipe_device
*)obj
;
445 struct object
*found
;
447 assert( obj
->ops
== &named_pipe_device_ops
);
448 assert( device
->pipes
);
450 if ((found
= find_object( device
->pipes
, name
, attr
| OBJ_CASE_INSENSITIVE
)))
456 static struct object
*named_pipe_device_open_file( struct object
*obj
, unsigned int access
,
457 unsigned int sharing
, unsigned int options
)
459 return grab_object( obj
);
462 static void named_pipe_device_destroy( struct object
*obj
)
464 struct named_pipe_device
*device
= (struct named_pipe_device
*)obj
;
465 assert( obj
->ops
== &named_pipe_device_ops
);
466 if (device
->fd
) release_object( device
->fd
);
467 free( device
->pipes
);
470 static enum server_fd_type
named_pipe_device_get_fd_type( struct fd
*fd
)
472 return FD_TYPE_DEVICE
;
475 void create_named_pipe_device( struct directory
*root
, const struct unicode_str
*name
)
477 struct named_pipe_device
*dev
;
479 if ((dev
= create_named_object_dir( root
, name
, 0, &named_pipe_device_ops
)) &&
480 get_error() != STATUS_OBJECT_NAME_EXISTS
)
483 if (!(dev
->fd
= alloc_pseudo_fd( &named_pipe_device_fd_ops
, &dev
->obj
)) ||
484 !(dev
->pipes
= create_namespace( 7 )))
486 release_object( dev
);
490 if (dev
) make_object_static( &dev
->obj
);
493 static int pipe_data_remaining( struct pipe_server
*server
)
498 assert( server
->client
);
500 fd
= get_unix_fd( server
->client
->fd
);
507 if (0 > poll( &pfd
, 1, 0 ))
510 return pfd
.revents
&POLLIN
;
513 static void check_flushed( void *arg
)
515 struct pipe_server
*server
= (struct pipe_server
*) arg
;
517 assert( server
->event
);
518 if (pipe_data_remaining( server
))
520 server
->flush_poll
= add_timeout_user( -TICKS_PER_SEC
/ 10, check_flushed
, server
);
524 /* notify_empty( server ); */
525 server
->flush_poll
= NULL
;
526 set_event( server
->event
);
527 release_object( server
->event
);
528 server
->event
= NULL
;
532 static void pipe_server_flush( struct fd
*fd
, struct event
**event
)
534 struct pipe_server
*server
= get_fd_user( fd
);
536 if (!server
|| server
->state
!= ps_connected_server
) return;
538 /* FIXME: if multiple threads flush the same pipe,
539 maybe should create a list of processes to notify */
540 if (server
->flush_poll
) return;
542 if (pipe_data_remaining( server
))
544 /* this kind of sux -
545 there's no unix way to be alerted when a pipe becomes empty */
546 server
->event
= create_event( NULL
, NULL
, 0, 0, 0 );
547 if (!server
->event
) return;
548 server
->flush_poll
= add_timeout_user( -TICKS_PER_SEC
/ 10, check_flushed
, server
);
549 *event
= server
->event
;
553 static void pipe_client_flush( struct fd
*fd
, struct event
**event
)
555 /* FIXME: what do we have to do for this? */
558 static inline int is_overlapped( unsigned int options
)
560 return !(options
& (FILE_SYNCHRONOUS_IO_ALERT
| FILE_SYNCHRONOUS_IO_NONALERT
));
563 static enum server_fd_type
pipe_server_get_fd_type( struct fd
*fd
)
568 static enum server_fd_type
pipe_client_get_fd_type( struct fd
*fd
)
573 static void pipe_server_ioctl( struct fd
*fd
, ioctl_code_t code
, const async_data_t
*async_data
,
574 const void *data
, data_size_t size
)
576 struct pipe_server
*server
= get_fd_user( fd
);
581 case FSCTL_PIPE_LISTEN
:
582 switch(server
->state
)
585 case ps_wait_connect
:
586 set_server_state( server
, ps_wait_open
);
587 if ((async
= fd_queue_async( server
->ioctl_fd
, async_data
, ASYNC_TYPE_WAIT
, 0 )))
589 if (server
->pipe
->waiters
) async_wake_up( server
->pipe
->waiters
, STATUS_SUCCESS
);
590 release_object( async
);
591 set_error( STATUS_PENDING
);
594 case ps_connected_server
:
595 set_error( STATUS_PIPE_CONNECTED
);
597 case ps_disconnected_server
:
598 set_error( STATUS_PIPE_BUSY
);
600 case ps_wait_disconnect
:
601 set_error( STATUS_NO_DATA_DETECTED
);
604 set_error( STATUS_INVALID_HANDLE
);
609 case FSCTL_PIPE_DISCONNECT
:
610 switch(server
->state
)
612 case ps_connected_server
:
613 assert( server
->client
);
614 assert( server
->client
->fd
);
616 notify_empty( server
);
618 /* dump the client and server fds, but keep the pointers
619 around - client loses all waiting data */
620 do_disconnect( server
);
621 set_server_state( server
, ps_disconnected_server
);
623 case ps_wait_disconnect
:
624 assert( !server
->client
);
625 do_disconnect( server
);
626 set_server_state( server
, ps_wait_connect
);
630 set_error( STATUS_PIPE_LISTENING
);
632 case ps_disconnected_server
:
633 case ps_wait_connect
:
634 set_error( STATUS_PIPE_DISCONNECTED
);
640 default_fd_ioctl( fd
, code
, async_data
, data
, size
);
645 static struct named_pipe
*create_named_pipe( struct directory
*root
, const struct unicode_str
*name
,
649 struct named_pipe
*pipe
= NULL
;
650 struct unicode_str new_name
;
652 if (!name
|| !name
->len
) return alloc_object( &named_pipe_ops
);
654 if (!(obj
= find_object_dir( root
, name
, attr
, &new_name
)))
656 set_error( STATUS_OBJECT_NAME_INVALID
);
661 if (attr
& OBJ_OPENIF
&& obj
->ops
== &named_pipe_ops
)
662 set_error( STATUS_OBJECT_NAME_EXISTS
);
665 release_object( obj
);
667 if (attr
& OBJ_OPENIF
)
668 set_error( STATUS_OBJECT_TYPE_MISMATCH
);
670 set_error( STATUS_OBJECT_NAME_COLLISION
);
672 return (struct named_pipe
*)obj
;
675 if (obj
->ops
!= &named_pipe_device_ops
)
676 set_error( STATUS_OBJECT_NAME_INVALID
);
679 struct named_pipe_device
*dev
= (struct named_pipe_device
*)obj
;
680 if ((pipe
= create_object( dev
->pipes
, &named_pipe_ops
, &new_name
, NULL
)))
684 release_object( obj
);
688 static struct pipe_server
*get_pipe_server_obj( struct process
*process
,
689 obj_handle_t handle
, unsigned int access
)
692 obj
= get_handle_obj( process
, handle
, access
, &pipe_server_ops
);
693 return (struct pipe_server
*) obj
;
696 static struct pipe_server
*create_pipe_server( struct named_pipe
*pipe
, unsigned int options
)
698 struct pipe_server
*server
;
700 server
= alloc_object( &pipe_server_ops
);
706 server
->client
= NULL
;
707 server
->flush_poll
= NULL
;
708 server
->options
= options
;
710 list_add_head( &pipe
->servers
, &server
->entry
);
712 if (!(server
->ioctl_fd
= alloc_pseudo_fd( &pipe_server_fd_ops
, &server
->obj
)))
714 release_object( server
);
717 set_server_state( server
, ps_idle_server
);
721 static struct pipe_client
*create_pipe_client( unsigned int flags
)
723 struct pipe_client
*client
;
725 client
= alloc_object( &pipe_client_ops
);
730 client
->server
= NULL
;
731 client
->flags
= flags
;
736 static struct pipe_server
*find_available_server( struct named_pipe
*pipe
)
738 struct pipe_server
*server
;
740 LIST_FOR_EACH_ENTRY( server
, &pipe
->servers
, struct pipe_server
, entry
)
742 if (server
->state
== ps_idle_server
|| server
->state
== ps_wait_open
)
743 return (struct pipe_server
*)grab_object( server
);
748 static struct object
*named_pipe_open_file( struct object
*obj
, unsigned int access
,
749 unsigned int sharing
, unsigned int options
)
751 struct named_pipe
*pipe
= (struct named_pipe
*)obj
;
752 struct pipe_server
*server
;
753 struct pipe_client
*client
;
756 if (!(server
= find_available_server( pipe
)))
758 set_error( STATUS_PIPE_NOT_AVAILABLE
);
762 if ((client
= create_pipe_client( options
)))
764 if (!socketpair( PF_UNIX
, SOCK_STREAM
, 0, fds
))
766 assert( !server
->fd
);
768 /* for performance reasons, only set nonblocking mode when using
769 * overlapped I/O. Otherwise, we will be doing too much busy
771 if (is_overlapped( options
)) fcntl( fds
[1], F_SETFL
, O_NONBLOCK
);
772 if (is_overlapped( server
->options
)) fcntl( fds
[0], F_SETFL
, O_NONBLOCK
);
776 setsockopt( fds
[0], SOL_SOCKET
, SO_RCVBUF
, &pipe
->insize
, sizeof(pipe
->insize
) );
777 setsockopt( fds
[1], SOL_SOCKET
, SO_RCVBUF
, &pipe
->insize
, sizeof(pipe
->insize
) );
781 setsockopt( fds
[0], SOL_SOCKET
, SO_SNDBUF
, &pipe
->outsize
, sizeof(pipe
->outsize
) );
782 setsockopt( fds
[1], SOL_SOCKET
, SO_SNDBUF
, &pipe
->outsize
, sizeof(pipe
->outsize
) );
785 client
->fd
= create_anonymous_fd( &pipe_client_fd_ops
, fds
[1], &client
->obj
, options
);
786 server
->fd
= create_anonymous_fd( &pipe_server_fd_ops
, fds
[0], &server
->obj
, server
->options
);
787 if (client
->fd
&& server
->fd
)
789 if (server
->state
== ps_wait_open
)
790 fd_async_wake_up( server
->ioctl_fd
, ASYNC_TYPE_WAIT
, STATUS_SUCCESS
);
791 set_server_state( server
, ps_connected_server
);
792 server
->client
= client
;
793 client
->server
= server
;
797 release_object( client
);
804 release_object( client
);
808 release_object( server
);
812 static void named_pipe_device_ioctl( struct fd
*fd
, ioctl_code_t code
, const async_data_t
*async_data
,
813 const void *data
, data_size_t size
)
815 struct named_pipe_device
*device
= get_fd_user( fd
);
819 case FSCTL_PIPE_WAIT
:
821 const FILE_PIPE_WAIT_FOR_BUFFER
*buffer
= data
;
822 struct named_pipe
*pipe
;
823 struct pipe_server
*server
;
824 struct unicode_str name
;
826 if (size
< sizeof(*buffer
) ||
827 size
< FIELD_OFFSET(FILE_PIPE_WAIT_FOR_BUFFER
, Name
[buffer
->NameLength
/sizeof(WCHAR
)]))
829 set_error( STATUS_INVALID_PARAMETER
);
832 name
.str
= buffer
->Name
;
833 name
.len
= (buffer
->NameLength
/ sizeof(WCHAR
)) * sizeof(WCHAR
);
834 if (!(pipe
= (struct named_pipe
*)find_object( device
->pipes
, &name
, OBJ_CASE_INSENSITIVE
)))
836 set_error( STATUS_PIPE_NOT_AVAILABLE
);
839 if (!(server
= find_available_server( pipe
)))
843 if (!pipe
->waiters
&& !(pipe
->waiters
= create_async_queue( NULL
)))
845 release_object( pipe
);
849 if ((async
= create_async( current
, pipe
->waiters
, async_data
)))
851 timeout_t when
= buffer
->TimeoutSpecified
? buffer
->Timeout
.QuadPart
: pipe
->timeout
;
852 async_set_timeout( async
, when
, STATUS_IO_TIMEOUT
);
853 release_object( async
);
854 set_error( STATUS_PENDING
);
857 else release_object( server
);
859 release_object( pipe
);
864 default_fd_ioctl( fd
, code
, async_data
, data
, size
);
870 DECL_HANDLER(create_named_pipe
)
872 struct named_pipe
*pipe
;
873 struct pipe_server
*server
;
874 struct unicode_str name
;
875 struct directory
*root
= NULL
;
878 get_req_unicode_str( &name
);
879 if (req
->rootdir
&& !(root
= get_directory_obj( current
->process
, req
->rootdir
, 0 )))
882 pipe
= create_named_pipe( root
, &name
, req
->attributes
| OBJ_OPENIF
);
884 if (root
) release_object( root
);
887 if (get_error() != STATUS_OBJECT_NAME_EXISTS
)
889 /* initialize it if it didn't already exist */
891 pipe
->waiters
= NULL
;
892 list_init( &pipe
->servers
);
893 pipe
->insize
= req
->insize
;
894 pipe
->outsize
= req
->outsize
;
895 pipe
->maxinstances
= req
->maxinstances
;
896 pipe
->timeout
= req
->timeout
;
897 pipe
->flags
= req
->flags
;
901 if (pipe
->maxinstances
<= pipe
->instances
)
903 set_error( STATUS_INSTANCE_NOT_AVAILABLE
);
904 release_object( pipe
);
907 if ((pipe
->maxinstances
!= req
->maxinstances
) ||
908 (pipe
->timeout
!= req
->timeout
) ||
909 (pipe
->flags
!= req
->flags
))
911 set_error( STATUS_ACCESS_DENIED
);
912 release_object( pipe
);
915 clear_error(); /* clear the name collision */
918 server
= create_pipe_server( pipe
, req
->options
);
921 reply
->handle
= alloc_handle( current
->process
, server
, req
->access
, req
->attributes
);
922 server
->pipe
->instances
++;
923 release_object( server
);
926 release_object( pipe
);
929 DECL_HANDLER(get_named_pipe_info
)
931 struct pipe_server
*server
;
932 struct pipe_client
*client
= NULL
;
934 server
= get_pipe_server_obj( current
->process
, req
->handle
, FILE_READ_ATTRIBUTES
);
938 client
= (struct pipe_client
*)get_handle_obj( current
->process
, req
->handle
,
939 FILE_READ_ATTRIBUTES
, &pipe_client_ops
);
941 server
= client
->server
;
944 reply
->flags
= server
->pipe
->flags
;
945 reply
->maxinstances
= server
->pipe
->maxinstances
;
946 reply
->instances
= server
->pipe
->instances
;
947 reply
->insize
= server
->pipe
->insize
;
948 reply
->outsize
= server
->pipe
->outsize
;
951 release_object(client
);
954 reply
->flags
|= NAMED_PIPE_SERVER_END
;
955 release_object(server
);