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
61 ps_disconnected_server,
69 struct object obj; /* object header */
70 struct fd *fd; /* pipe file descriptor */
71 struct list entry; /* entry in named pipe servers list */
72 enum pipe_state state; /* server state */
73 struct pipe_client *client; /* client that this server is connected to */
74 struct named_pipe *pipe;
75 struct timeout_user *flush_poll;
77 struct list wait_q; /* only a single one can be queued */
78 unsigned int options; /* pipe options */
83 struct object obj; /* object header */
84 struct fd *fd; /* pipe file descriptor */
85 struct pipe_server *server; /* server that this client is connected to */
86 unsigned int flags; /* file flags */
91 struct object obj; /* object header */
93 unsigned int maxinstances;
97 unsigned int instances;
98 struct list servers; /* list of servers using this pipe */
99 struct list waiters; /* list of clients waiting to connect */
102 struct named_pipe_device
104 struct object obj; /* object header */
105 struct fd *fd; /* pseudo-fd for ioctls */
106 struct namespace *pipes; /* named pipe namespace */
109 static void named_pipe_dump( struct object *obj, int verbose );
110 static unsigned int named_pipe_map_access( struct object *obj, unsigned int access );
111 static void named_pipe_destroy( struct object *obj );
113 static const struct object_ops named_pipe_ops =
115 sizeof(struct named_pipe), /* size */
116 named_pipe_dump, /* dump */
117 no_add_queue, /* add_queue */
118 NULL, /* remove_queue */
120 NULL, /* satisfied */
121 no_signal, /* signal */
122 no_get_fd, /* get_fd */
123 named_pipe_map_access, /* map_access */
124 no_lookup_name, /* lookup_name */
125 no_close_handle, /* close_handle */
126 named_pipe_destroy /* destroy */
129 /* functions common to server and client */
130 static unsigned int pipe_map_access( struct object *obj, unsigned int access );
132 /* server end functions */
133 static void pipe_server_dump( struct object *obj, int verbose );
134 static struct fd *pipe_server_get_fd( struct object *obj );
135 static void pipe_server_destroy( struct object *obj);
136 static int pipe_server_flush( struct fd *fd, struct event **event );
137 static int pipe_server_get_info( struct fd *fd );
139 static const struct object_ops pipe_server_ops =
141 sizeof(struct pipe_server), /* size */
142 pipe_server_dump, /* dump */
143 default_fd_add_queue, /* add_queue */
144 default_fd_remove_queue, /* remove_queue */
145 default_fd_signaled, /* signaled */
146 no_satisfied, /* satisfied */
147 no_signal, /* signal */
148 pipe_server_get_fd, /* get_fd */
149 pipe_map_access, /* map_access */
150 no_lookup_name, /* lookup_name */
151 no_close_handle, /* close_handle */
152 pipe_server_destroy /* destroy */
155 static const struct fd_ops pipe_server_fd_ops =
157 default_fd_get_poll_events, /* get_poll_events */
158 default_poll_event, /* poll_event */
159 pipe_server_flush, /* flush */
160 pipe_server_get_info, /* get_file_info */
161 default_fd_queue_async, /* queue_async */
162 default_fd_cancel_async, /* cancel_async */
165 /* client end functions */
166 static void pipe_client_dump( struct object *obj, int verbose );
167 static struct fd *pipe_client_get_fd( struct object *obj );
168 static void pipe_client_destroy( struct object *obj );
169 static int pipe_client_flush( struct fd *fd, struct event **event );
170 static int pipe_client_get_info( struct fd *fd );
172 static const struct object_ops pipe_client_ops =
174 sizeof(struct pipe_client), /* size */
175 pipe_client_dump, /* dump */
176 default_fd_add_queue, /* add_queue */
177 default_fd_remove_queue, /* remove_queue */
178 default_fd_signaled, /* signaled */
179 no_satisfied, /* satisfied */
180 no_signal, /* signal */
181 pipe_client_get_fd, /* get_fd */
182 pipe_map_access, /* map_access */
183 no_lookup_name, /* lookup_name */
184 no_close_handle, /* close_handle */
185 pipe_client_destroy /* destroy */
188 static const struct fd_ops pipe_client_fd_ops =
190 default_fd_get_poll_events, /* get_poll_events */
191 default_poll_event, /* poll_event */
192 pipe_client_flush, /* flush */
193 pipe_client_get_info, /* get_file_info */
194 default_fd_queue_async, /* queue_async */
195 default_fd_cancel_async /* cancel_async */
198 static void named_pipe_device_dump( struct object *obj, int verbose );
199 static struct fd *named_pipe_device_get_fd( struct object *obj );
200 static struct object *named_pipe_device_lookup_name( struct object *obj,
201 struct unicode_str *name, unsigned int attr );
202 static void named_pipe_device_destroy( struct object *obj );
203 static int named_pipe_device_get_file_info( struct fd *fd );
205 static const struct object_ops named_pipe_device_ops =
207 sizeof(struct named_pipe_device), /* size */
208 named_pipe_device_dump, /* dump */
209 no_add_queue, /* add_queue */
210 NULL, /* remove_queue */
212 no_satisfied, /* satisfied */
213 no_signal, /* signal */
214 named_pipe_device_get_fd, /* get_fd */
215 pipe_map_access, /* map_access */
216 named_pipe_device_lookup_name, /* lookup_name */
217 no_close_handle, /* close_handle */
218 named_pipe_device_destroy /* destroy */
221 static const struct fd_ops named_pipe_device_fd_ops =
223 default_fd_get_poll_events, /* get_poll_events */
224 default_poll_event, /* poll_event */
225 no_flush, /* flush */
226 named_pipe_device_get_file_info, /* get_file_info */
227 default_fd_queue_async, /* queue_async */
228 default_fd_cancel_async /* cancel_async */
231 static void named_pipe_dump( struct object *obj, int verbose )
233 struct named_pipe *pipe = (struct named_pipe *) obj;
234 assert( obj->ops == &named_pipe_ops );
235 fprintf( stderr, "Named pipe " );
236 dump_object_name( &pipe->obj );
237 fprintf( stderr, "\n" );
240 static unsigned int named_pipe_map_access( struct object *obj, unsigned int access )
242 if (access & GENERIC_READ) access |= STANDARD_RIGHTS_READ;
243 if (access & GENERIC_WRITE) access |= STANDARD_RIGHTS_WRITE | FILE_CREATE_PIPE_INSTANCE;
244 if (access & GENERIC_EXECUTE) access |= STANDARD_RIGHTS_EXECUTE;
245 if (access & GENERIC_ALL) access |= STANDARD_RIGHTS_ALL;
246 return access & ~(GENERIC_READ | GENERIC_WRITE | GENERIC_EXECUTE | GENERIC_ALL);
249 static void pipe_server_dump( struct object *obj, int verbose )
251 struct pipe_server *server = (struct pipe_server *) obj;
252 assert( obj->ops == &pipe_server_ops );
253 fprintf( stderr, "Named pipe server pipe=%p state=%d\n", server->pipe, server->state );
256 static void pipe_client_dump( struct object *obj, int verbose )
258 struct pipe_client *client = (struct pipe_client *) obj;
259 assert( obj->ops == &pipe_client_ops );
260 fprintf( stderr, "Named pipe client server=%p\n", client->server );
263 static void named_pipe_destroy( struct object *obj)
265 struct named_pipe *pipe = (struct named_pipe *) obj;
267 assert( list_empty( &pipe->servers ) );
268 assert( !pipe->instances );
269 async_terminate_queue( &pipe->waiters, STATUS_HANDLES_CLOSED );
272 static struct fd *pipe_client_get_fd( struct object *obj )
274 struct pipe_client *client = (struct pipe_client *) obj;
276 return (struct fd *) grab_object( client->fd );
277 set_error( STATUS_PIPE_DISCONNECTED );
281 static struct fd *pipe_server_get_fd( struct object *obj )
283 struct pipe_server *server = (struct pipe_server *) obj;
285 switch(server->state)
287 case ps_connected_server:
288 case ps_wait_disconnect:
289 assert( server->fd );
290 return (struct fd *) grab_object( server->fd );
294 set_error( STATUS_PIPE_LISTENING );
297 case ps_disconnected_server:
298 case ps_wait_connect:
299 set_error( STATUS_PIPE_DISCONNECTED );
306 static void notify_empty( struct pipe_server *server )
308 if (!server->flush_poll)
310 assert( server->state == ps_connected_server );
311 assert( server->event );
312 remove_timeout_user( server->flush_poll );
313 server->flush_poll = NULL;
314 set_event( server->event );
315 release_object( server->event );
316 server->event = NULL;
319 static void do_disconnect( struct pipe_server *server )
321 /* we may only have a server fd, if the client disconnected */
324 assert( server->client->server == server );
325 assert( server->client->fd );
326 release_object( server->client->fd );
327 server->client->fd = NULL;
329 assert( server->fd );
330 release_object( server->fd );
334 static unsigned int pipe_map_access( struct object *obj, unsigned int access )
336 if (access & GENERIC_READ) access |= FILE_GENERIC_READ;
337 if (access & GENERIC_WRITE) access |= FILE_GENERIC_WRITE;
338 if (access & GENERIC_EXECUTE) access |= FILE_GENERIC_EXECUTE;
339 if (access & GENERIC_ALL) access |= FILE_ALL_ACCESS;
340 return access & ~(GENERIC_READ | GENERIC_WRITE | GENERIC_EXECUTE | GENERIC_ALL);
343 static void pipe_server_destroy( struct object *obj)
345 struct pipe_server *server = (struct pipe_server *)obj;
347 assert( obj->ops == &pipe_server_ops );
351 notify_empty( server );
352 do_disconnect( server );
357 server->client->server = NULL;
358 server->client = NULL;
361 async_terminate_head( &server->wait_q, STATUS_HANDLES_CLOSED );
363 assert( server->pipe->instances );
364 server->pipe->instances--;
366 list_remove( &server->entry );
367 release_object( server->pipe );
370 static void pipe_client_destroy( struct object *obj)
372 struct pipe_client *client = (struct pipe_client *)obj;
373 struct pipe_server *server = client->server;
375 assert( obj->ops == &pipe_client_ops );
379 notify_empty( server );
381 switch(server->state)
383 case ps_connected_server:
384 /* Don't destroy the server's fd here as we can't
385 do a successful flush without it. */
386 server->state = ps_wait_disconnect;
387 release_object( client->fd );
390 case ps_disconnected_server:
391 server->state = ps_wait_connect;
395 case ps_wait_disconnect:
396 case ps_wait_connect:
399 assert( server->client );
400 server->client = NULL;
401 client->server = NULL;
403 assert( !client->fd );
406 static void named_pipe_device_dump( struct object *obj, int verbose )
408 assert( obj->ops == &named_pipe_device_ops );
409 fprintf( stderr, "Named pipe device\n" );
412 static struct fd *named_pipe_device_get_fd( struct object *obj )
414 struct named_pipe_device *device = (struct named_pipe_device *)obj;
415 return (struct fd *)grab_object( device->fd );
418 static struct object *named_pipe_device_lookup_name( struct object *obj, struct unicode_str *name,
421 struct named_pipe_device *device = (struct named_pipe_device*)obj;
422 struct object *found;
424 assert( obj->ops == &named_pipe_device_ops );
425 assert( device->pipes );
427 if ((found = find_object( device->pipes, name, attr | OBJ_CASE_INSENSITIVE )))
433 static void named_pipe_device_destroy( struct object *obj )
435 struct named_pipe_device *device = (struct named_pipe_device*)obj;
436 assert( obj->ops == &named_pipe_device_ops );
437 if (device->fd) release_object( device->fd );
438 if (device->pipes) free( device->pipes );
441 static int named_pipe_device_get_file_info( struct fd *fd )
446 void create_named_pipe_device( struct directory *root, const struct unicode_str *name )
448 struct named_pipe_device *dev;
450 if ((dev = create_named_object_dir( root, name, 0, &named_pipe_device_ops )) &&
451 get_error() != STATUS_OBJECT_NAME_EXISTS)
454 if (!(dev->fd = alloc_pseudo_fd( &named_pipe_device_fd_ops, &dev->obj )) ||
455 !(dev->pipes = create_namespace( 7 )))
457 release_object( dev );
461 if (dev) make_object_static( &dev->obj );
464 static int pipe_data_remaining( struct pipe_server *server )
469 assert( server->client );
471 fd = get_unix_fd( server->client->fd );
478 if (0 > poll( &pfd, 1, 0 ))
481 return pfd.revents&POLLIN;
484 static void check_flushed( void *arg )
486 struct pipe_server *server = (struct pipe_server*) arg;
488 assert( server->event );
489 if (pipe_data_remaining( server ))
493 gettimeofday( &tv, NULL );
494 add_timeout( &tv, 100 );
495 server->flush_poll = add_timeout_user( &tv, check_flushed, server );
499 /* notify_empty( server ); */
500 server->flush_poll = NULL;
501 set_event( server->event );
502 release_object( server->event );
503 server->event = NULL;
507 static int pipe_server_flush( struct fd *fd, struct event **event )
509 struct pipe_server *server = get_fd_user( fd );
514 if (server->state != ps_connected_server)
517 /* FIXME: if multiple threads flush the same pipe,
518 maybe should create a list of processes to notify */
519 if (server->flush_poll)
522 if (pipe_data_remaining( server ))
526 /* this kind of sux -
527 there's no unix way to be alerted when a pipe becomes empty */
528 server->event = create_event( NULL, NULL, 0, 0, 0 );
531 gettimeofday( &tv, NULL );
532 add_timeout( &tv, 100 );
533 server->flush_poll = add_timeout_user( &tv, check_flushed, server );
534 *event = server->event;
540 static int pipe_client_flush( struct fd *fd, struct event **event )
542 /* FIXME: what do we have to do for this? */
546 static inline int is_overlapped( unsigned int options )
548 return !(options & (FILE_SYNCHRONOUS_IO_ALERT | FILE_SYNCHRONOUS_IO_NONALERT));
551 static int pipe_server_get_info( struct fd *fd )
553 struct pipe_server *server = get_fd_user( fd );
554 int flags = FD_FLAG_AVAILABLE;
556 if (is_overlapped( server->options )) flags |= FD_FLAG_OVERLAPPED;
561 static int pipe_client_get_info( struct fd *fd )
563 struct pipe_client *client = get_fd_user( fd );
564 int flags = FD_FLAG_AVAILABLE;
566 if (is_overlapped( client->flags )) flags |= FD_FLAG_OVERLAPPED;
571 static struct named_pipe *create_named_pipe( struct directory *root, const struct unicode_str *name,
575 struct named_pipe *pipe = NULL;
576 struct unicode_str new_name;
578 if (!name || !name->len) return alloc_object( &named_pipe_ops );
580 if (!(obj = find_object_dir( root, name, attr, &new_name ))) return NULL;
583 if (attr & OBJ_OPENIF && obj->ops == &named_pipe_ops)
584 set_error( STATUS_OBJECT_NAME_EXISTS );
587 release_object( obj );
589 if (attr & OBJ_OPENIF)
590 set_error( STATUS_OBJECT_TYPE_MISMATCH );
592 set_error( STATUS_OBJECT_NAME_COLLISION );
594 return (struct named_pipe *)obj;
597 if (obj->ops != &named_pipe_device_ops)
598 set_error( STATUS_OBJECT_TYPE_MISMATCH );
601 struct named_pipe_device *dev = (struct named_pipe_device *)obj;
602 if ((pipe = create_object( dev->pipes, &named_pipe_ops, &new_name, NULL )))
606 release_object( obj );
610 static struct pipe_server *get_pipe_server_obj( struct process *process,
611 obj_handle_t handle, unsigned int access )
614 obj = get_handle_obj( process, handle, access, &pipe_server_ops );
615 return (struct pipe_server *) obj;
618 static struct pipe_server *create_pipe_server( struct named_pipe *pipe, unsigned int options )
620 struct pipe_server *server;
622 server = alloc_object( &pipe_server_ops );
628 server->state = ps_idle_server;
629 server->client = NULL;
630 server->flush_poll = NULL;
631 server->options = options;
632 list_init( &server->wait_q );
634 list_add_head( &pipe->servers, &server->entry );
640 static struct pipe_client *create_pipe_client( unsigned int flags )
642 struct pipe_client *client;
644 client = alloc_object( &pipe_client_ops );
649 client->server = NULL;
650 client->flags = flags;
655 static inline struct pipe_server *find_server( struct named_pipe *pipe, enum pipe_state state )
657 struct pipe_server *server;
659 LIST_FOR_EACH_ENTRY( server, &pipe->servers, struct pipe_server, entry )
661 if (server->state == state) return (struct pipe_server *)grab_object( server );
666 static inline struct pipe_server *find_server2( struct named_pipe *pipe,
667 enum pipe_state state1, enum pipe_state state2 )
669 struct pipe_server *server;
671 LIST_FOR_EACH_ENTRY( server, &pipe->servers, struct pipe_server, entry )
673 if (server->state == state1 || server->state == state2)
674 return (struct pipe_server *)grab_object( server );
679 DECL_HANDLER(create_named_pipe)
681 struct named_pipe *pipe;
682 struct pipe_server *server;
683 struct unicode_str name;
684 struct directory *root = NULL;
687 get_req_unicode_str( &name );
688 if (req->rootdir && !(root = get_directory_obj( current->process, req->rootdir, 0 )))
691 pipe = create_named_pipe( root, &name, req->attributes | OBJ_OPENIF );
693 if (root) release_object( root );
696 if (get_error() != STATUS_OBJECT_NAME_EXISTS)
698 /* initialize it if it didn't already exist */
700 list_init( &pipe->servers );
701 list_init( &pipe->waiters );
702 pipe->insize = req->insize;
703 pipe->outsize = req->outsize;
704 pipe->maxinstances = req->maxinstances;
705 pipe->timeout = req->timeout;
706 pipe->flags = req->flags;
710 if (pipe->maxinstances <= pipe->instances)
712 set_error( STATUS_INSTANCE_NOT_AVAILABLE );
713 release_object( pipe );
716 if ((pipe->maxinstances != req->maxinstances) ||
717 (pipe->timeout != req->timeout) ||
718 (pipe->flags != req->flags))
720 set_error( STATUS_ACCESS_DENIED );
721 release_object( pipe );
724 clear_error(); /* clear the name collision */
727 server = create_pipe_server( pipe, req->options );
730 reply->handle = alloc_handle( current->process, server, req->access, req->attributes );
731 server->pipe->instances++;
732 release_object( server );
735 release_object( pipe );
738 DECL_HANDLER(open_named_pipe)
740 struct pipe_server *server;
741 struct pipe_client *client;
742 struct unicode_str name;
743 struct directory *root = NULL;
744 struct named_pipe *pipe;
747 get_req_unicode_str( &name );
748 if (req->rootdir && !(root = get_directory_obj( current->process, req->rootdir, 0 )))
751 pipe = open_object_dir( root, &name, req->attributes, &named_pipe_ops );
753 if (root) release_object( root );
756 server = find_server2( pipe, ps_idle_server, ps_wait_open );
757 release_object( pipe );
761 set_error( STATUS_PIPE_NOT_AVAILABLE );
765 client = create_pipe_client( req->flags );
768 if (!socketpair( PF_UNIX, SOCK_STREAM, 0, fds ))
772 assert( !client->fd );
773 assert( !server->fd );
775 /* for performance reasons, only set nonblocking mode when using
776 * overlapped I/O. Otherwise, we will be doing too much busy
778 if (is_overlapped( req->flags ))
779 res = fcntl( fds[1], F_SETFL, O_NONBLOCK );
780 if ((res != -1) && is_overlapped( server->options ))
781 res = fcntl( fds[0], F_SETFL, O_NONBLOCK );
783 client->fd = create_anonymous_fd( &pipe_client_fd_ops,
784 fds[1], &client->obj );
785 server->fd = create_anonymous_fd( &pipe_server_fd_ops,
786 fds[0], &server->obj );
787 if (client->fd && server->fd && res != 1)
789 if (server->state == ps_wait_open)
790 async_terminate_head( &server->wait_q, STATUS_SUCCESS );
791 assert( list_empty( &server->wait_q ) );
792 server->state = ps_connected_server;
793 server->client = client;
794 client->server = server;
795 reply->handle = alloc_handle( current->process, client, req->access, req->attributes );
801 release_object( client );
803 release_object( server );
806 DECL_HANDLER(connect_named_pipe)
808 struct pipe_server *server;
810 server = get_pipe_server_obj(current->process, req->handle, 0);
814 switch(server->state)
817 case ps_wait_connect:
818 assert( !server->fd );
819 server->state = ps_wait_open;
820 create_async( current, NULL, &server->wait_q,
821 req->func, req->event, NULL );
822 async_terminate_queue( &server->pipe->waiters, STATUS_SUCCESS );
824 case ps_connected_server:
825 assert( server->fd );
826 set_error( STATUS_PIPE_CONNECTED );
828 case ps_disconnected_server:
829 set_error( STATUS_PIPE_BUSY );
831 case ps_wait_disconnect:
832 set_error( STATUS_NO_DATA_DETECTED );
835 set_error( STATUS_INVALID_HANDLE );
839 release_object(server);
842 DECL_HANDLER(wait_named_pipe)
844 struct named_pipe_device *device;
845 struct named_pipe *pipe;
846 struct pipe_server *server;
847 struct unicode_str name;
849 device = (struct named_pipe_device *)get_handle_obj( current->process, req->handle,
850 FILE_READ_ATTRIBUTES, &named_pipe_device_ops );
853 get_req_unicode_str( &name );
854 pipe = (struct named_pipe *)find_object( device->pipes, &name, OBJ_CASE_INSENSITIVE );
855 release_object( device );
858 set_error( STATUS_PIPE_NOT_AVAILABLE );
861 server = find_server( pipe, ps_wait_open );
864 /* there's already a server waiting for a client to connect */
865 thread_queue_apc( current, NULL, req->func, APC_ASYNC_IO,
866 1, req->event, NULL, (void *)STATUS_SUCCESS );
867 release_object( server );
872 if (req->timeout == NMPWAIT_USE_DEFAULT_WAIT)
873 timeout = pipe->timeout;
875 timeout = req->timeout;
877 if (req->timeout == NMPWAIT_WAIT_FOREVER)
878 create_async( current, NULL, &pipe->waiters,
879 req->func, req->event, NULL );
881 create_async( current, &timeout, &pipe->waiters,
882 req->func, req->event, NULL );
885 release_object( pipe );
888 DECL_HANDLER(disconnect_named_pipe)
890 struct pipe_server *server;
893 server = get_pipe_server_obj( current->process, req->handle, 0 );
896 switch(server->state)
898 case ps_connected_server:
899 assert( server->fd );
900 assert( server->client );
901 assert( server->client->fd );
903 notify_empty( server );
905 /* Dump the client and server fds, but keep the pointers
906 around - client loses all waiting data */
907 server->state = ps_disconnected_server;
908 do_disconnect( server );
909 reply->fd = flush_cached_fd( current->process, req->handle );
912 case ps_wait_disconnect:
913 assert( !server->client );
914 assert( server->fd );
915 do_disconnect( server );
916 server->state = ps_wait_connect;
917 reply->fd = flush_cached_fd( current->process, req->handle );
922 case ps_disconnected_server:
923 case ps_wait_connect:
924 set_error( STATUS_PIPE_DISCONNECTED );
927 release_object( server );
930 DECL_HANDLER(get_named_pipe_info)
932 struct pipe_server *server;
933 struct pipe_client *client = NULL;
935 server = get_pipe_server_obj( current->process, req->handle, FILE_READ_ATTRIBUTES );
939 client = (struct pipe_client *)get_handle_obj( current->process, req->handle,
940 FILE_READ_ATTRIBUTES, &pipe_client_ops );
942 server = client->server;
945 reply->flags = server->pipe->flags;
946 reply->maxinstances = server->pipe->maxinstances;
947 reply->instances = server->pipe->instances;
948 reply->insize = server->pipe->insize;
949 reply->outsize = server->pipe->outsize;
952 release_object(client);
955 reply->flags |= NAMED_PIPE_SERVER_END;
956 release_object(server);