2 * Server-side socket management
4 * Copyright (C) 1999 Marcus Meissner, Ove Kåven
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 * FIXME: we use read|write access in all cases. Shouldn't we depend that
21 * on the access of the current handle?
33 #ifdef HAVE_SYS_ERRNO_H
34 # include <sys/errno.h>
37 #include <sys/types.h>
38 #ifdef HAVE_SYS_SOCKET_H
39 # include <sys/socket.h>
41 #ifdef HAVE_SYS_IOCTL_H
42 #include <sys/ioctl.h>
44 #ifdef HAVE_SYS_FILIO_H
45 # include <sys/filio.h>
51 #define WIN32_NO_STATUS
62 /* To avoid conflicts with the Unix socket headers. Plus we only need a few
70 struct object obj; /* object header */
71 struct fd *fd; /* socket file descriptor */
72 unsigned int state; /* status bits */
73 unsigned int mask; /* event mask */
74 unsigned int hmask; /* held (blocked) events */
75 unsigned int pmask; /* pending events */
76 unsigned int flags; /* socket flags */
77 int polling; /* is socket being polled? */
78 unsigned short type; /* socket type */
79 unsigned short family; /* socket family */
80 struct event *event; /* event object */
81 user_handle_t window; /* window to send the message to */
82 unsigned int message; /* message to send */
83 obj_handle_t wparam; /* message wparam (socket handle) */
84 int errors[FD_MAX_EVENTS]; /* event errors */
85 struct sock *deferred; /* socket that waits for a deferred accept */
86 struct async_queue *read_q; /* queue for asynchronous reads */
87 struct async_queue *write_q; /* queue for asynchronous writes */
90 static void sock_dump( struct object *obj, int verbose );
91 static int sock_signaled( struct object *obj, struct thread *thread );
92 static struct fd *sock_get_fd( struct object *obj );
93 static void sock_destroy( struct object *obj );
95 static int sock_get_poll_events( struct fd *fd );
96 static void sock_poll_event( struct fd *fd, int event );
97 static enum server_fd_type sock_get_fd_type( struct fd *fd );
98 static void sock_queue_async( struct fd *fd, const async_data_t *data, int type, int count );
99 static void sock_reselect_async( struct fd *fd, struct async_queue *queue );
100 static void sock_cancel_async( struct fd *fd );
102 static int sock_get_error( int err );
103 static void sock_set_error(void);
105 static const struct object_ops sock_ops =
107 sizeof(struct sock), /* size */
108 sock_dump, /* dump */
109 add_queue, /* add_queue */
110 remove_queue, /* remove_queue */
111 sock_signaled, /* signaled */
112 no_satisfied, /* satisfied */
113 no_signal, /* signal */
114 sock_get_fd, /* get_fd */
115 default_fd_map_access, /* map_access */
116 no_lookup_name, /* lookup_name */
117 no_open_file, /* open_file */
118 fd_close_handle, /* close_handle */
119 sock_destroy /* destroy */
122 static const struct fd_ops sock_fd_ops =
124 sock_get_poll_events, /* get_poll_events */
125 sock_poll_event, /* poll_event */
126 no_flush, /* flush */
127 sock_get_fd_type, /* get_file_info */
128 default_fd_ioctl, /* ioctl */
129 sock_queue_async, /* queue_async */
130 sock_reselect_async, /* reselect_async */
131 sock_cancel_async /* cancel_async */
135 /* Permutation of 0..FD_MAX_EVENTS - 1 representing the order in which
136 * we post messages if there are multiple events. Used to send
137 * messages. The problem is if there is both a FD_CONNECT event and,
138 * say, an FD_READ event available on the same socket, we want to
139 * notify the app of the connect event first. Otherwise it may
140 * discard the read event because it thinks it hasn't connected yet.
142 static const int event_bitorder[FD_MAX_EVENTS] =
150 6, 7, 8, 9 /* leftovers */
153 /* Flags that make sense only for SOCK_STREAM sockets */
154 #define STREAM_FLAG_MASK ((unsigned int) (FD_CONNECT | FD_ACCEPT | FD_WINE_LISTENING | FD_WINE_CONNECTED))
157 SOCK_SHUTDOWN_ERROR = -1,
158 SOCK_SHUTDOWN_EOF = 0,
159 SOCK_SHUTDOWN_POLLHUP = 1
162 static sock_shutdown_t sock_shutdown_type = SOCK_SHUTDOWN_ERROR;
164 static sock_shutdown_t sock_check_pollhup(void)
166 sock_shutdown_t ret = SOCK_SHUTDOWN_ERROR;
171 if ( socketpair( AF_UNIX, SOCK_STREAM, 0, fd ) ) goto out;
172 if ( shutdown( fd[0], 1 ) ) goto out;
178 n = poll( &pfd, 1, 0 );
179 if ( n != 1 ) goto out; /* error or timeout */
180 if ( pfd.revents & POLLHUP )
181 ret = SOCK_SHUTDOWN_POLLHUP;
182 else if ( pfd.revents & POLLIN &&
183 read( fd[1], &dummy, 1 ) == 0 )
184 ret = SOCK_SHUTDOWN_EOF;
194 sock_shutdown_type = sock_check_pollhup();
196 switch ( sock_shutdown_type )
198 case SOCK_SHUTDOWN_EOF:
199 if (debug_level) fprintf( stderr, "sock_init: shutdown() causes EOF\n" );
201 case SOCK_SHUTDOWN_POLLHUP:
202 if (debug_level) fprintf( stderr, "sock_init: shutdown() causes POLLHUP\n" );
205 fprintf( stderr, "sock_init: ERROR in sock_check_pollhup()\n" );
206 sock_shutdown_type = SOCK_SHUTDOWN_EOF;
210 static int sock_reselect( struct sock *sock )
212 int ev = sock_get_poll_events( sock->fd );
215 fprintf(stderr,"sock_reselect(%p): new mask %x\n", sock, ev);
217 if (!sock->polling) /* FIXME: should find a better way to do this */
219 /* previously unconnected socket, is this reselect supposed to connect it? */
220 if (!(sock->state & ~FD_WINE_NONBLOCKING)) return 0;
221 /* ok, it is, attach it to the wineserver's main poll loop */
224 /* update condition mask */
225 set_fd_events( sock->fd, ev );
229 /* After POLLHUP is received, the socket will no longer be in the main select loop.
230 This function is used to signal pending events nevertheless */
231 static void sock_try_event( struct sock *sock, int event )
233 event = check_fd_events( sock->fd, event );
236 if ( debug_level ) fprintf( stderr, "sock_try_event: %x\n", event );
237 sock_poll_event( sock->fd, event );
241 /* wake anybody waiting on the socket event or send the associated message */
242 static void sock_wake_up( struct sock *sock, int pollev )
244 unsigned int events = sock->pmask & sock->mask;
246 int async_active = 0;
248 if ( pollev & (POLLIN|POLLPRI) && async_waiting( sock->read_q ))
250 if (debug_level) fprintf( stderr, "activating read queue for socket %p\n", sock );
251 async_wake_up( sock->read_q, STATUS_ALERTED );
254 if ( pollev & POLLOUT && async_waiting( sock->write_q ))
256 if (debug_level) fprintf( stderr, "activating write queue for socket %p\n", sock );
257 async_wake_up( sock->write_q, STATUS_ALERTED );
261 /* Do not signal events if there are still pending asynchronous IO requests */
262 /* We need this to delay FD_CLOSE events until all pending overlapped requests are processed */
263 if ( !events || async_active ) return;
267 if (debug_level) fprintf(stderr, "signalling events %x ptr %p\n", events, sock->event );
268 set_event( sock->event );
272 if (debug_level) fprintf(stderr, "signalling events %x win %p\n", events, sock->window );
273 for (i = 0; i < FD_MAX_EVENTS; i++)
275 int event = event_bitorder[i];
276 if (sock->pmask & (1 << event))
278 unsigned int lparam = (1 << event) | (sock->errors[event] << 16);
279 post_message( sock->window, sock->message, (unsigned long)sock->wparam, lparam );
283 sock_reselect( sock );
287 static inline int sock_error( struct fd *fd )
289 unsigned int optval = 0, optlen;
291 optlen = sizeof(optval);
292 getsockopt( get_unix_fd(fd), SOL_SOCKET, SO_ERROR, (void *) &optval, &optlen);
293 return optval ? sock_get_error(optval) : 0;
296 static void sock_poll_event( struct fd *fd, int event )
298 struct sock *sock = get_fd_user( fd );
301 assert( sock->obj.ops == &sock_ops );
303 fprintf(stderr, "socket %p select event: %x\n", sock, event);
304 if (sock->state & FD_CONNECT)
309 /* we got connected */
310 sock->state |= FD_WINE_CONNECTED|FD_READ|FD_WRITE;
311 sock->state &= ~FD_CONNECT;
312 sock->pmask |= FD_CONNECT;
313 sock->errors[FD_CONNECT_BIT] = 0;
315 fprintf(stderr, "socket %p connection success\n", sock);
317 else if (event & (POLLERR|POLLHUP))
319 /* we didn't get connected? */
320 sock->state &= ~FD_CONNECT;
321 sock->pmask |= FD_CONNECT;
322 sock->errors[FD_CONNECT_BIT] = sock_error( fd );
324 fprintf(stderr, "socket %p connection failure\n", sock);
327 else if (sock->state & FD_WINE_LISTENING)
332 /* incoming connection */
333 sock->pmask |= FD_ACCEPT;
334 sock->errors[FD_ACCEPT_BIT] = 0;
335 sock->hmask |= FD_ACCEPT;
337 else if (event & (POLLERR|POLLHUP))
339 /* failed incoming connection? */
340 sock->pmask |= FD_ACCEPT;
341 sock->errors[FD_ACCEPT_BIT] = sock_error( fd );
342 sock->hmask |= FD_ACCEPT;
347 /* normal data flow */
348 if ( sock->type == SOCK_STREAM && ( event & POLLIN ) )
353 /* Linux 2.4 doesn't report POLLHUP if only one side of the socket
354 * has been closed, so we need to check for it explicitly here */
355 nr = recv( get_unix_fd( fd ), &dummy, 1, MSG_PEEK );
359 sock->pmask |= FD_READ;
360 sock->hmask |= (FD_READ|FD_CLOSE);
361 sock->errors[FD_READ_BIT] = 0;
363 fprintf(stderr, "socket %p is readable\n", sock );
369 /* EAGAIN can happen if an async recv() falls between the server's poll()
370 call and the invocation of this routine */
371 if ( errno == EAGAIN )
376 fprintf( stderr, "recv error on socket %p: %d\n", sock, errno );
382 else if ( sock_shutdown_type == SOCK_SHUTDOWN_POLLHUP && (event & POLLHUP) )
386 else if ( event & POLLIN ) /* POLLIN for non-stream socket */
388 sock->pmask |= FD_READ;
389 sock->hmask |= (FD_READ|FD_CLOSE);
390 sock->errors[FD_READ_BIT] = 0;
392 fprintf(stderr, "socket %p is readable\n", sock );
398 sock->pmask |= FD_WRITE;
399 sock->hmask |= FD_WRITE;
400 sock->errors[FD_WRITE_BIT] = 0;
402 fprintf(stderr, "socket %p is writable\n", sock);
406 sock->pmask |= FD_OOB;
407 sock->hmask |= FD_OOB;
408 sock->errors[FD_OOB_BIT] = 0;
410 fprintf(stderr, "socket %p got OOB data\n", sock);
412 /* According to WS2 specs, FD_CLOSE is only delivered when there is
413 no more data to be read (i.e. hangup_seen = 1) */
414 else if ( hangup_seen && (sock->state & (FD_READ|FD_WRITE) ))
416 sock->errors[FD_CLOSE_BIT] = sock_error( fd );
417 if ( (event & POLLERR) || ( sock_shutdown_type == SOCK_SHUTDOWN_EOF && (event & POLLHUP) ))
418 sock->state &= ~FD_WRITE;
419 sock->pmask |= FD_CLOSE;
420 sock->hmask |= FD_CLOSE;
422 fprintf(stderr, "socket %p aborted by error %d, event: %x - removing from select loop\n",
423 sock, sock->errors[FD_CLOSE_BIT], event);
427 if ( sock->pmask & FD_CLOSE || event & (POLLERR|POLLHUP) )
430 fprintf( stderr, "removing socket %p from select loop\n", sock );
431 set_fd_events( sock->fd, -1 );
434 sock_reselect( sock );
436 /* wake up anyone waiting for whatever just happened */
437 if ( sock->pmask & sock->mask || sock->flags & WSA_FLAG_OVERLAPPED ) sock_wake_up( sock, event );
439 /* if anyone is stupid enough to wait on the socket object itself,
440 * maybe we should wake them up too, just in case? */
441 wake_up( &sock->obj, 0 );
444 static void sock_dump( struct object *obj, int verbose )
446 struct sock *sock = (struct sock *)obj;
447 assert( obj->ops == &sock_ops );
448 printf( "Socket fd=%p, state=%x, mask=%x, pending=%x, held=%x\n",
449 sock->fd, sock->state,
450 sock->mask, sock->pmask, sock->hmask );
453 static int sock_signaled( struct object *obj, struct thread *thread )
455 struct sock *sock = (struct sock *)obj;
456 assert( obj->ops == &sock_ops );
458 return check_fd_events( sock->fd, sock_get_poll_events( sock->fd ) ) != 0;
461 static int sock_get_poll_events( struct fd *fd )
463 struct sock *sock = get_fd_user( fd );
464 unsigned int mask = sock->mask & sock->state & ~sock->hmask;
467 assert( sock->obj.ops == &sock_ops );
469 if (sock->state & FD_CONNECT)
470 /* connecting, wait for writable */
472 if (sock->state & FD_WINE_LISTENING)
473 /* listening, wait for readable */
474 return (sock->hmask & FD_ACCEPT) ? 0 : POLLIN;
476 if (mask & FD_READ || async_waiting( sock->read_q )) ev |= POLLIN | POLLPRI;
477 if (mask & FD_WRITE || async_waiting( sock->write_q )) ev |= POLLOUT;
478 /* We use POLLIN with 0 bytes recv() as FD_CLOSE indication for stream sockets. */
479 if ( sock->type == SOCK_STREAM && ( sock->mask & ~sock->hmask & FD_CLOSE) )
485 static enum server_fd_type sock_get_fd_type( struct fd *fd )
487 return FD_TYPE_SOCKET;
490 static void sock_queue_async( struct fd *fd, const async_data_t *data, int type, int count )
492 struct sock *sock = get_fd_user( fd );
493 struct async_queue *queue;
496 assert( sock->obj.ops == &sock_ops );
500 case ASYNC_TYPE_READ:
501 if (!sock->read_q && !(sock->read_q = create_async_queue( sock->fd ))) return;
502 queue = sock->read_q;
503 sock->hmask &= ~FD_CLOSE;
505 case ASYNC_TYPE_WRITE:
506 if (!sock->write_q && !(sock->write_q = create_async_queue( sock->fd ))) return;
507 queue = sock->write_q;
510 set_error( STATUS_INVALID_PARAMETER );
514 if ( ( !( sock->state & FD_READ ) && type == ASYNC_TYPE_READ ) ||
515 ( !( sock->state & FD_WRITE ) && type == ASYNC_TYPE_WRITE ) )
517 set_error( STATUS_PIPE_DISCONNECTED );
522 if (!(async = create_async( current, queue, data ))) return;
523 release_object( async );
524 set_error( STATUS_PENDING );
527 pollev = sock_reselect( sock );
528 if ( pollev ) sock_try_event( sock, pollev );
531 static void sock_reselect_async( struct fd *fd, struct async_queue *queue )
533 struct sock *sock = get_fd_user( fd );
534 int events = sock_reselect( sock );
535 if (events) sock_try_event( sock, events );
538 static void sock_cancel_async( struct fd *fd )
540 struct sock *sock = get_fd_user( fd );
541 assert( sock->obj.ops == &sock_ops );
543 async_wake_up( sock->read_q, STATUS_CANCELLED );
544 async_wake_up( sock->write_q, STATUS_CANCELLED );
547 static struct fd *sock_get_fd( struct object *obj )
549 struct sock *sock = (struct sock *)obj;
550 return (struct fd *)grab_object( sock->fd );
553 static void sock_destroy( struct object *obj )
555 struct sock *sock = (struct sock *)obj;
556 assert( obj->ops == &sock_ops );
558 /* FIXME: special socket shutdown stuff? */
560 if ( sock->deferred )
561 release_object( sock->deferred );
563 free_async_queue( sock->read_q );
564 free_async_queue( sock->write_q );
565 if (sock->event) release_object( sock->event );
568 /* shut the socket down to force pending poll() calls in the client to return */
569 shutdown( get_unix_fd(sock->fd), SHUT_RDWR );
570 release_object( sock->fd );
574 /* create a new and unconnected socket */
575 static struct object *create_socket( int family, int type, int protocol, unsigned int flags )
580 sockfd = socket( family, type, protocol );
582 fprintf(stderr,"socket(%d,%d,%d)=%d\n",family,type,protocol,sockfd);
588 fcntl(sockfd, F_SETFL, O_NONBLOCK); /* make socket nonblocking */
589 if (!(sock = alloc_object( &sock_ops )))
594 sock->state = (type != SOCK_STREAM) ? (FD_READ|FD_WRITE) : 0;
601 sock->family = family;
606 sock->deferred = NULL;
608 sock->write_q = NULL;
609 if (!(sock->fd = create_anonymous_fd( &sock_fd_ops, sockfd, &sock->obj,
610 (flags & WSA_FLAG_OVERLAPPED) ? 0 : FILE_SYNCHRONOUS_IO_NONALERT )))
612 release_object( sock );
615 sock_reselect( sock );
620 /* accept a socket (creates a new fd) */
621 static struct sock *accept_socket( obj_handle_t handle )
623 struct sock *acceptsock;
626 struct sockaddr saddr;
628 sock = (struct sock *)get_handle_obj( current->process, handle, FILE_READ_DATA, &sock_ops );
632 if ( sock->deferred )
634 acceptsock = sock->deferred;
635 sock->deferred = NULL;
640 /* Try to accept(2). We can't be safe that this an already connected socket
641 * or that accept() is allowed on it. In those cases we will get -1/errno
644 unsigned int slen = sizeof(saddr);
645 acceptfd = accept( get_unix_fd(sock->fd), &saddr, &slen);
649 release_object( sock );
652 if (!(acceptsock = alloc_object( &sock_ops )))
655 release_object( sock );
659 /* newly created socket gets the same properties of the listening socket */
660 fcntl(acceptfd, F_SETFL, O_NONBLOCK); /* make socket nonblocking */
661 acceptsock->state = FD_WINE_CONNECTED|FD_READ|FD_WRITE;
662 if (sock->state & FD_WINE_NONBLOCKING)
663 acceptsock->state |= FD_WINE_NONBLOCKING;
664 acceptsock->mask = sock->mask;
665 acceptsock->hmask = 0;
666 acceptsock->pmask = 0;
667 acceptsock->polling = 0;
668 acceptsock->type = sock->type;
669 acceptsock->family = sock->family;
670 acceptsock->event = NULL;
671 acceptsock->window = sock->window;
672 acceptsock->message = sock->message;
673 acceptsock->wparam = 0;
674 if (sock->event) acceptsock->event = (struct event *)grab_object( sock->event );
675 acceptsock->flags = sock->flags;
676 acceptsock->deferred = NULL;
677 acceptsock->read_q = NULL;
678 acceptsock->write_q = NULL;
679 if (!(acceptsock->fd = create_anonymous_fd( &sock_fd_ops, acceptfd, &acceptsock->obj,
680 get_fd_options( sock->fd ) )))
682 release_object( acceptsock );
683 release_object( sock );
688 sock->pmask &= ~FD_ACCEPT;
689 sock->hmask &= ~FD_ACCEPT;
690 sock_reselect( sock );
691 release_object( sock );
695 /* set the last error depending on errno */
696 static int sock_get_error( int err )
700 case EINTR: return WSAEINTR;
701 case EBADF: return WSAEBADF;
703 case EACCES: return WSAEACCES;
704 case EFAULT: return WSAEFAULT;
705 case EINVAL: return WSAEINVAL;
706 case EMFILE: return WSAEMFILE;
707 case EWOULDBLOCK: return WSAEWOULDBLOCK;
708 case EINPROGRESS: return WSAEINPROGRESS;
709 case EALREADY: return WSAEALREADY;
710 case ENOTSOCK: return WSAENOTSOCK;
711 case EDESTADDRREQ: return WSAEDESTADDRREQ;
712 case EMSGSIZE: return WSAEMSGSIZE;
713 case EPROTOTYPE: return WSAEPROTOTYPE;
714 case ENOPROTOOPT: return WSAENOPROTOOPT;
715 case EPROTONOSUPPORT: return WSAEPROTONOSUPPORT;
716 case ESOCKTNOSUPPORT: return WSAESOCKTNOSUPPORT;
717 case EOPNOTSUPP: return WSAEOPNOTSUPP;
718 case EPFNOSUPPORT: return WSAEPFNOSUPPORT;
719 case EAFNOSUPPORT: return WSAEAFNOSUPPORT;
720 case EADDRINUSE: return WSAEADDRINUSE;
721 case EADDRNOTAVAIL: return WSAEADDRNOTAVAIL;
722 case ENETDOWN: return WSAENETDOWN;
723 case ENETUNREACH: return WSAENETUNREACH;
724 case ENETRESET: return WSAENETRESET;
725 case ECONNABORTED: return WSAECONNABORTED;
727 case ECONNRESET: return WSAECONNRESET;
728 case ENOBUFS: return WSAENOBUFS;
729 case EISCONN: return WSAEISCONN;
730 case ENOTCONN: return WSAENOTCONN;
731 case ESHUTDOWN: return WSAESHUTDOWN;
732 case ETOOMANYREFS: return WSAETOOMANYREFS;
733 case ETIMEDOUT: return WSAETIMEDOUT;
734 case ECONNREFUSED: return WSAECONNREFUSED;
735 case ELOOP: return WSAELOOP;
736 case ENAMETOOLONG: return WSAENAMETOOLONG;
737 case EHOSTDOWN: return WSAEHOSTDOWN;
738 case EHOSTUNREACH: return WSAEHOSTUNREACH;
739 case ENOTEMPTY: return WSAENOTEMPTY;
741 case EPROCLIM: return WSAEPROCLIM;
744 case EUSERS: return WSAEUSERS;
747 case EDQUOT: return WSAEDQUOT;
750 case ESTALE: return WSAESTALE;
753 case EREMOTE: return WSAEREMOTE;
757 perror("wineserver: sock_get_error() can't map error");
762 /* set the last error depending on errno */
763 static void sock_set_error(void)
765 set_error( sock_get_error( errno ) );
768 /* create a socket */
769 DECL_HANDLER(create_socket)
774 if ((obj = create_socket( req->family, req->type, req->protocol, req->flags )) != NULL)
776 reply->handle = alloc_handle( current->process, obj, req->access, req->attributes );
777 release_object( obj );
781 /* accept a socket */
782 DECL_HANDLER(accept_socket)
787 if ((sock = accept_socket( req->lhandle )) != NULL)
789 reply->handle = alloc_handle( current->process, &sock->obj, req->access, req->attributes );
790 sock->wparam = reply->handle; /* wparam for message is the socket handle */
791 sock_reselect( sock );
792 release_object( &sock->obj );
796 /* set socket event parameters */
797 DECL_HANDLER(set_socket_event)
800 struct event *old_event;
803 if (!(sock = (struct sock *)get_handle_obj( current->process, req->handle,
804 FILE_WRITE_ATTRIBUTES, &sock_ops))) return;
805 old_event = sock->event;
806 sock->mask = req->mask;
807 sock->hmask &= ~req->mask; /* re-enable held events */
809 sock->window = req->window;
810 sock->message = req->msg;
811 sock->wparam = req->handle; /* wparam is the socket handle */
812 if (req->event) sock->event = get_event_obj( current->process, req->event, EVENT_MODIFY_STATE );
814 if (debug_level && sock->event) fprintf(stderr, "event ptr: %p\n", sock->event);
816 pollev = sock_reselect( sock );
817 if ( pollev ) sock_try_event( sock, pollev );
820 sock->state |= FD_WINE_NONBLOCKING;
822 /* if a network event is pending, signal the event object
823 it is possible that FD_CONNECT or FD_ACCEPT network events has happened
824 before a WSAEventSelect() was done on it.
825 (when dealing with Asynchronous socket) */
826 if (sock->pmask & sock->mask) sock_wake_up( sock, pollev );
828 if (old_event) release_object( old_event ); /* we're through with it */
829 release_object( &sock->obj );
832 /* get socket event parameters */
833 DECL_HANDLER(get_socket_event)
837 sock = (struct sock *)get_handle_obj( current->process, req->handle, FILE_READ_ATTRIBUTES, &sock_ops );
843 set_error( WSAENOTSOCK );
846 reply->mask = sock->mask;
847 reply->pmask = sock->pmask;
848 reply->state = sock->state;
849 set_reply_data( sock->errors, min( get_reply_max_size(), sizeof(sock->errors) ));
855 struct event *cevent = get_event_obj( current->process, req->c_event,
856 EVENT_MODIFY_STATE );
859 reset_event( cevent );
860 release_object( cevent );
864 sock_reselect( sock );
866 release_object( &sock->obj );
869 /* re-enable pending socket events */
870 DECL_HANDLER(enable_socket_event)
875 if (!(sock = (struct sock*)get_handle_obj( current->process, req->handle,
876 FILE_WRITE_ATTRIBUTES, &sock_ops)))
879 sock->pmask &= ~req->mask; /* is this safe? */
880 sock->hmask &= ~req->mask;
881 if ( req->mask & FD_READ )
882 sock->hmask &= ~FD_CLOSE;
883 sock->state |= req->sstate;
884 sock->state &= ~req->cstate;
885 if ( sock->type != SOCK_STREAM ) sock->state &= ~STREAM_FLAG_MASK;
887 pollev = sock_reselect( sock );
888 if ( pollev ) sock_try_event( sock, pollev );
890 release_object( &sock->obj );
893 DECL_HANDLER(set_socket_deferred)
895 struct sock *sock, *acceptsock;
897 sock=(struct sock *)get_handle_obj( current->process, req->handle, FILE_WRITE_ATTRIBUTES, &sock_ops );
900 set_error( WSAENOTSOCK );
903 acceptsock = (struct sock *)get_handle_obj( current->process, req->deferred, 0, &sock_ops );
906 release_object( sock );
907 set_error( WSAENOTSOCK );
910 sock->deferred = acceptsock;
911 release_object( sock );