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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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>
60 /* To avoid conflicts with the Unix socket headers. Plus we only need a few
68 struct object obj; /* object header */
69 struct fd *fd; /* socket file descriptor */
70 unsigned int state; /* status bits */
71 unsigned int mask; /* event mask */
72 unsigned int hmask; /* held (blocked) events */
73 unsigned int pmask; /* pending events */
74 unsigned int flags; /* socket flags */
75 int polling; /* is socket being polled? */
76 unsigned short type; /* socket type */
77 unsigned short family; /* socket family */
78 struct event *event; /* event object */
79 user_handle_t window; /* window to send the message to */
80 unsigned int message; /* message to send */
81 obj_handle_t wparam; /* message wparam (socket handle) */
82 int errors[FD_MAX_EVENTS]; /* event errors */
83 struct sock *deferred; /* socket that waits for a deferred accept */
84 struct async *read_q; /* Queue for asynchronous reads */
85 struct async *write_q; /* Queue for asynchronous writes */
88 static void sock_dump( struct object *obj, int verbose );
89 static int sock_signaled( struct object *obj, struct thread *thread );
90 static struct fd *sock_get_fd( struct object *obj );
91 static void sock_destroy( struct object *obj );
93 static int sock_get_poll_events( struct fd *fd );
94 static void sock_poll_event( struct fd *fd, int event );
95 static int sock_get_info( struct fd *fd );
96 static void sock_queue_async( struct fd *fd, void *apc, void *user, void *iosb, int type, int count );
97 static void sock_cancel_async( struct fd *fd );
99 static int sock_get_error( int err );
100 static void sock_set_error(void);
102 static const struct object_ops sock_ops =
104 sizeof(struct sock), /* size */
105 sock_dump, /* dump */
106 add_queue, /* add_queue */
107 remove_queue, /* remove_queue */
108 sock_signaled, /* signaled */
109 no_satisfied, /* satisfied */
110 sock_get_fd, /* get_fd */
111 sock_destroy /* destroy */
114 static const struct fd_ops sock_fd_ops =
116 sock_get_poll_events, /* get_poll_events */
117 sock_poll_event, /* poll_event */
118 no_flush, /* flush */
119 sock_get_info, /* get_file_info */
120 sock_queue_async, /* queue_async */
121 sock_cancel_async /* cancel_async */
125 /* Permutation of 0..FD_MAX_EVENTS - 1 representing the order in which
126 * we post messages if there are multiple events. Used to send
127 * messages. The problem is if there is both a FD_CONNECT event and,
128 * say, an FD_READ event available on the same socket, we want to
129 * notify the app of the connect event first. Otherwise it may
130 * discard the read event because it thinks it hasn't connected yet.
132 static const int event_bitorder[FD_MAX_EVENTS] =
140 6, 7, 8, 9 /* leftovers */
143 /* Flags that make sense only for SOCK_STREAM sockets */
144 #define STREAM_FLAG_MASK ((unsigned int) (FD_CONNECT | FD_ACCEPT | FD_WINE_LISTENING | FD_WINE_CONNECTED))
147 SOCK_SHUTDOWN_ERROR = -1,
148 SOCK_SHUTDOWN_EOF = 0,
149 SOCK_SHUTDOWN_POLLHUP = 1
152 static sock_shutdown_t sock_shutdown_type = SOCK_SHUTDOWN_ERROR;
154 static sock_shutdown_t sock_check_pollhup(void)
156 sock_shutdown_t ret = SOCK_SHUTDOWN_ERROR;
161 if ( socketpair( AF_UNIX, SOCK_STREAM, 0, fd ) ) goto out;
162 if ( shutdown( fd[0], 1 ) ) goto out;
168 n = poll( &pfd, 1, 0 );
169 if ( n != 1 ) goto out; /* error or timeout */
170 if ( pfd.revents & POLLHUP )
171 ret = SOCK_SHUTDOWN_POLLHUP;
172 else if ( pfd.revents & POLLIN &&
173 read( fd[1], &dummy, 1 ) == 0 )
174 ret = SOCK_SHUTDOWN_EOF;
184 sock_shutdown_type = sock_check_pollhup();
186 switch ( sock_shutdown_type )
188 case SOCK_SHUTDOWN_EOF:
189 if (debug_level) fprintf( stderr, "sock_init: shutdown() causes EOF\n" );
191 case SOCK_SHUTDOWN_POLLHUP:
192 if (debug_level) fprintf( stderr, "sock_init: shutdown() causes POLLHUP\n" );
195 fprintf( stderr, "sock_init: ERROR in sock_check_pollhup()\n" );
196 sock_shutdown_type = SOCK_SHUTDOWN_EOF;
200 static int sock_reselect( struct sock *sock )
202 int ev = sock_get_poll_events( sock->fd );
205 fprintf(stderr,"sock_reselect(%p): new mask %x\n", sock, ev);
207 if (!sock->polling) /* FIXME: should find a better way to do this */
209 /* previously unconnected socket, is this reselect supposed to connect it? */
210 if (!(sock->state & ~FD_WINE_NONBLOCKING)) return 0;
211 /* ok, it is, attach it to the wineserver's main poll loop */
214 /* update condition mask */
215 set_fd_events( sock->fd, ev );
219 /* After POLLHUP is received, the socket will no longer be in the main select loop.
220 This function is used to signal pending events nevertheless */
221 static void sock_try_event( struct sock *sock, int event )
223 event = check_fd_events( sock->fd, event );
226 if ( debug_level ) fprintf( stderr, "sock_try_event: %x\n", event );
227 sock_poll_event( sock->fd, event );
231 /* wake anybody waiting on the socket event or send the associated message */
232 static void sock_wake_up( struct sock *sock, int pollev )
234 unsigned int events = sock->pmask & sock->mask;
236 int async_active = 0;
238 if ( sock->flags & WSA_FLAG_OVERLAPPED )
240 if ( pollev & (POLLIN|POLLPRI) && sock->read_q )
242 if (debug_level) fprintf( stderr, "activating read queue for socket %p\n", sock );
243 async_terminate( sock->read_q, STATUS_ALERTED );
246 if ( pollev & POLLOUT && sock->write_q )
248 if (debug_level) fprintf( stderr, "activating write queue for socket %p\n", sock );
249 async_terminate( sock->write_q, STATUS_ALERTED );
254 /* Do not signal events if there are still pending asynchronous IO requests */
255 /* We need this to delay FD_CLOSE events until all pending overlapped requests are processed */
256 if ( !events || async_active ) return;
260 if (debug_level) fprintf(stderr, "signalling events %x ptr %p\n", events, sock->event );
261 set_event( sock->event );
265 if (debug_level) fprintf(stderr, "signalling events %x win %p\n", events, sock->window );
266 for (i = 0; i < FD_MAX_EVENTS; i++)
268 int event = event_bitorder[i];
269 if (sock->pmask & (1 << event))
271 unsigned int lparam = (1 << event) | (sock->errors[event] << 16);
272 post_message( sock->window, sock->message, (unsigned int)sock->wparam, lparam );
276 sock_reselect( sock );
280 inline static int sock_error( struct fd *fd )
282 unsigned int optval = 0, optlen;
284 optlen = sizeof(optval);
285 getsockopt( get_unix_fd(fd), SOL_SOCKET, SO_ERROR, (void *) &optval, &optlen);
286 return optval ? sock_get_error(optval) : 0;
289 static void sock_poll_event( struct fd *fd, int event )
291 struct sock *sock = get_fd_user( fd );
294 assert( sock->obj.ops == &sock_ops );
296 fprintf(stderr, "socket %p select event: %x\n", sock, event);
297 if (sock->state & FD_CONNECT)
302 /* we got connected */
303 sock->state |= FD_WINE_CONNECTED|FD_READ|FD_WRITE;
304 sock->state &= ~FD_CONNECT;
305 sock->pmask |= FD_CONNECT;
306 sock->errors[FD_CONNECT_BIT] = 0;
308 fprintf(stderr, "socket %p connection success\n", sock);
310 else if (event & (POLLERR|POLLHUP))
312 /* we didn't get connected? */
313 sock->state &= ~FD_CONNECT;
314 sock->pmask |= FD_CONNECT;
315 sock->errors[FD_CONNECT_BIT] = sock_error( fd );
317 fprintf(stderr, "socket %p connection failure\n", sock);
320 else if (sock->state & FD_WINE_LISTENING)
325 /* incoming connection */
326 sock->pmask |= FD_ACCEPT;
327 sock->errors[FD_ACCEPT_BIT] = 0;
328 sock->hmask |= FD_ACCEPT;
330 else if (event & (POLLERR|POLLHUP))
332 /* failed incoming connection? */
333 sock->pmask |= FD_ACCEPT;
334 sock->errors[FD_ACCEPT_BIT] = sock_error( fd );
335 sock->hmask |= FD_ACCEPT;
340 /* normal data flow */
341 if ( sock->type == SOCK_STREAM && ( event & POLLIN ) )
346 /* Linux 2.4 doesn't report POLLHUP if only one side of the socket
347 * has been closed, so we need to check for it explicitly here */
348 nr = recv( get_unix_fd( fd ), &dummy, 1, MSG_PEEK );
352 sock->pmask |= FD_READ;
353 sock->hmask |= (FD_READ|FD_CLOSE);
354 sock->errors[FD_READ_BIT] = 0;
356 fprintf(stderr, "socket %p is readable\n", sock );
362 /* EAGAIN can happen if an async recv() falls between the server's poll()
363 call and the invocation of this routine */
364 if ( errno == EAGAIN )
369 fprintf( stderr, "recv error on socket %p: %d\n", sock, errno );
375 else if ( sock_shutdown_type == SOCK_SHUTDOWN_POLLHUP && (event & POLLHUP) )
379 else if ( event & POLLIN ) /* POLLIN for non-stream socket */
381 sock->pmask |= FD_READ;
382 sock->hmask |= (FD_READ|FD_CLOSE);
383 sock->errors[FD_READ_BIT] = 0;
385 fprintf(stderr, "socket %p is readable\n", sock );
391 sock->pmask |= FD_WRITE;
392 sock->hmask |= FD_WRITE;
393 sock->errors[FD_WRITE_BIT] = 0;
395 fprintf(stderr, "socket %p is writable\n", sock);
399 sock->pmask |= FD_OOB;
400 sock->hmask |= FD_OOB;
401 sock->errors[FD_OOB_BIT] = 0;
403 fprintf(stderr, "socket %p got OOB data\n", sock);
405 /* According to WS2 specs, FD_CLOSE is only delivered when there is
406 no more data to be read (i.e. hangup_seen = 1) */
407 else if ( hangup_seen && (sock->state & (FD_READ|FD_WRITE) ))
409 sock->errors[FD_CLOSE_BIT] = sock_error( fd );
410 if ( (event & POLLERR) || ( sock_shutdown_type == SOCK_SHUTDOWN_EOF && (event & POLLHUP) ))
411 sock->state &= ~FD_WRITE;
412 sock->pmask |= FD_CLOSE;
413 sock->hmask |= FD_CLOSE;
415 fprintf(stderr, "socket %p aborted by error %d, event: %x - removing from select loop\n",
416 sock, sock->errors[FD_CLOSE_BIT], event);
420 if ( sock->pmask & FD_CLOSE || event & (POLLERR|POLLHUP) )
423 fprintf( stderr, "removing socket %p from select loop\n", sock );
424 set_fd_events( sock->fd, -1 );
427 sock_reselect( sock );
429 /* wake up anyone waiting for whatever just happened */
430 if ( sock->pmask & sock->mask || sock->flags & WSA_FLAG_OVERLAPPED ) sock_wake_up( sock, event );
432 /* if anyone is stupid enough to wait on the socket object itself,
433 * maybe we should wake them up too, just in case? */
434 wake_up( &sock->obj, 0 );
437 static void sock_dump( struct object *obj, int verbose )
439 struct sock *sock = (struct sock *)obj;
440 assert( obj->ops == &sock_ops );
441 printf( "Socket fd=%p, state=%x, mask=%x, pending=%x, held=%x\n",
442 sock->fd, sock->state,
443 sock->mask, sock->pmask, sock->hmask );
446 static int sock_signaled( struct object *obj, struct thread *thread )
448 struct sock *sock = (struct sock *)obj;
449 assert( obj->ops == &sock_ops );
451 return check_fd_events( sock->fd, sock_get_poll_events( sock->fd ) ) != 0;
454 static int sock_get_poll_events( struct fd *fd )
456 struct sock *sock = get_fd_user( fd );
457 unsigned int mask = sock->mask & sock->state & ~sock->hmask;
460 assert( sock->obj.ops == &sock_ops );
462 if (sock->state & FD_CONNECT)
463 /* connecting, wait for writable */
465 if (sock->state & FD_WINE_LISTENING)
466 /* listening, wait for readable */
467 return (sock->hmask & FD_ACCEPT) ? 0 : POLLIN;
469 if (mask & (FD_READ) || (sock->flags & WSA_FLAG_OVERLAPPED && sock->read_q))
470 ev |= POLLIN | POLLPRI;
471 if (mask & FD_WRITE || (sock->flags & WSA_FLAG_OVERLAPPED && sock->write_q))
473 /* We use POLLIN with 0 bytes recv() as FD_CLOSE indication for stream sockets. */
474 if ( sock->type == SOCK_STREAM && ( sock->mask & ~sock->hmask & FD_CLOSE) )
480 static int sock_get_info( struct fd *fd )
482 int flags = FD_FLAG_AVAILABLE;
483 struct sock *sock = get_fd_user( fd );
484 assert( sock->obj.ops == &sock_ops );
486 if (sock->flags & WSA_FLAG_OVERLAPPED) flags |= FD_FLAG_OVERLAPPED;
487 if ( sock->type != SOCK_STREAM || sock->state & FD_WINE_CONNECTED )
489 if ( !(sock->state & FD_READ ) ) flags |= FD_FLAG_RECV_SHUTDOWN;
490 if ( !(sock->state & FD_WRITE ) ) flags |= FD_FLAG_SEND_SHUTDOWN;
495 static void sock_queue_async( struct fd *fd, void *apc, void *user, void *iosb,
496 int type, int count )
498 struct sock *sock = get_fd_user( fd );
502 assert( sock->obj.ops == &sock_ops );
504 if ( !(sock->flags & WSA_FLAG_OVERLAPPED) )
506 set_error( STATUS_INVALID_HANDLE );
512 case ASYNC_TYPE_READ:
513 head = &sock->read_q;
514 sock->hmask &= ~FD_CLOSE;
516 case ASYNC_TYPE_WRITE:
517 head = &sock->write_q;
520 set_error( STATUS_INVALID_PARAMETER );
524 if ( ( !( sock->state & FD_READ ) && type == ASYNC_TYPE_READ ) ||
525 ( !( sock->state & FD_WRITE ) && type == ASYNC_TYPE_WRITE ) )
527 set_error( STATUS_PIPE_DISCONNECTED );
531 if (!create_async( fd, current, 0, head, apc, user, iosb ))
535 pollev = sock_reselect( sock );
536 if ( pollev ) sock_try_event( sock, pollev );
539 static void sock_cancel_async( struct fd *fd )
541 struct sock *sock = get_fd_user( fd );
542 assert( sock->obj.ops == &sock_ops );
544 async_terminate_queue( &sock->read_q, STATUS_CANCELLED );
545 async_terminate_queue( &sock->write_q, STATUS_CANCELLED );
548 static struct fd *sock_get_fd( struct object *obj )
550 struct sock *sock = (struct sock *)obj;
551 return (struct fd *)grab_object( sock->fd );
554 static void sock_destroy( struct object *obj )
556 struct sock *sock = (struct sock *)obj;
557 assert( obj->ops == &sock_ops );
559 /* FIXME: special socket shutdown stuff? */
561 if ( sock->deferred )
562 release_object( sock->deferred );
564 if ( sock->flags & WSA_FLAG_OVERLAPPED )
566 async_terminate_queue( &sock->read_q, STATUS_CANCELLED );
567 async_terminate_queue( &sock->write_q, STATUS_CANCELLED );
569 if (sock->event) release_object( sock->event );
570 if (sock->fd) release_object( sock->fd );
573 /* create a new and unconnected socket */
574 static struct object *create_socket( int family, int type, int protocol, unsigned int flags )
579 sockfd = socket( family, type, protocol );
581 fprintf(stderr,"socket(%d,%d,%d)=%d\n",family,type,protocol,sockfd);
587 fcntl(sockfd, F_SETFL, O_NONBLOCK); /* make socket nonblocking */
588 if (!(sock = alloc_object( &sock_ops )))
593 sock->state = (type != SOCK_STREAM) ? (FD_READ|FD_WRITE) : 0;
600 sock->family = family;
605 sock->deferred = NULL;
606 if (!(sock->fd = create_anonymous_fd( &sock_fd_ops, sockfd, &sock->obj )))
608 release_object( sock );
611 if (sock->flags & WSA_FLAG_OVERLAPPED)
613 sock->read_q = sock->write_q = NULL;
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;
629 sock=(struct sock*)get_handle_obj(current->process,handle,
630 GENERIC_READ|GENERIC_WRITE|SYNCHRONIZE,&sock_ops);
634 if ( sock->deferred )
636 acceptsock = sock->deferred;
637 sock->deferred = NULL;
642 /* Try to accept(2). We can't be safe that this an already connected socket
643 * or that accept() is allowed on it. In those cases we will get -1/errno
646 slen = sizeof(saddr);
647 acceptfd = accept( get_unix_fd(sock->fd), &saddr, &slen);
651 release_object( sock );
654 if (!(acceptsock = alloc_object( &sock_ops )))
657 release_object( sock );
661 /* newly created socket gets the same properties of the listening socket */
662 fcntl(acceptfd, F_SETFL, O_NONBLOCK); /* make socket nonblocking */
663 acceptsock->state = FD_WINE_CONNECTED|FD_READ|FD_WRITE;
664 if (sock->state & FD_WINE_NONBLOCKING)
665 acceptsock->state |= FD_WINE_NONBLOCKING;
666 acceptsock->mask = sock->mask;
667 acceptsock->hmask = 0;
668 acceptsock->pmask = 0;
669 acceptsock->polling = 0;
670 acceptsock->type = sock->type;
671 acceptsock->family = sock->family;
672 acceptsock->event = NULL;
673 acceptsock->window = sock->window;
674 acceptsock->message = sock->message;
675 acceptsock->wparam = 0;
676 if (sock->event) acceptsock->event = (struct event *)grab_object( sock->event );
677 acceptsock->flags = sock->flags;
678 acceptsock->deferred = 0;
679 if (!(acceptsock->fd = create_anonymous_fd( &sock_fd_ops, acceptfd, &acceptsock->obj )))
681 release_object( acceptsock );
682 release_object( sock );
685 if ( acceptsock->flags & WSA_FLAG_OVERLAPPED )
687 acceptsock->read_q = acceptsock->write_q = NULL;
691 sock->pmask &= ~FD_ACCEPT;
692 sock->hmask &= ~FD_ACCEPT;
693 sock_reselect( sock );
694 release_object( sock );
698 /* set the last error depending on errno */
699 static int sock_get_error( int err )
703 case EINTR: return WSAEINTR;
704 case EBADF: return WSAEBADF;
706 case EACCES: return WSAEACCES;
707 case EFAULT: return WSAEFAULT;
708 case EINVAL: return WSAEINVAL;
709 case EMFILE: return WSAEMFILE;
710 case EWOULDBLOCK: return WSAEWOULDBLOCK;
711 case EINPROGRESS: return WSAEINPROGRESS;
712 case EALREADY: return WSAEALREADY;
713 case ENOTSOCK: return WSAENOTSOCK;
714 case EDESTADDRREQ: return WSAEDESTADDRREQ;
715 case EMSGSIZE: return WSAEMSGSIZE;
716 case EPROTOTYPE: return WSAEPROTOTYPE;
717 case ENOPROTOOPT: return WSAENOPROTOOPT;
718 case EPROTONOSUPPORT: return WSAEPROTONOSUPPORT;
719 case ESOCKTNOSUPPORT: return WSAESOCKTNOSUPPORT;
720 case EOPNOTSUPP: return WSAEOPNOTSUPP;
721 case EPFNOSUPPORT: return WSAEPFNOSUPPORT;
722 case EAFNOSUPPORT: return WSAEAFNOSUPPORT;
723 case EADDRINUSE: return WSAEADDRINUSE;
724 case EADDRNOTAVAIL: return WSAEADDRNOTAVAIL;
725 case ENETDOWN: return WSAENETDOWN;
726 case ENETUNREACH: return WSAENETUNREACH;
727 case ENETRESET: return WSAENETRESET;
728 case ECONNABORTED: return WSAECONNABORTED;
730 case ECONNRESET: return WSAECONNRESET;
731 case ENOBUFS: return WSAENOBUFS;
732 case EISCONN: return WSAEISCONN;
733 case ENOTCONN: return WSAENOTCONN;
734 case ESHUTDOWN: return WSAESHUTDOWN;
735 case ETOOMANYREFS: return WSAETOOMANYREFS;
736 case ETIMEDOUT: return WSAETIMEDOUT;
737 case ECONNREFUSED: return WSAECONNREFUSED;
738 case ELOOP: return WSAELOOP;
739 case ENAMETOOLONG: return WSAENAMETOOLONG;
740 case EHOSTDOWN: return WSAEHOSTDOWN;
741 case EHOSTUNREACH: return WSAEHOSTUNREACH;
742 case ENOTEMPTY: return WSAENOTEMPTY;
744 case EPROCLIM: return WSAEPROCLIM;
747 case EUSERS: return WSAEUSERS;
750 case EDQUOT: return WSAEDQUOT;
753 case ESTALE: return WSAESTALE;
756 case EREMOTE: return WSAEREMOTE;
758 default: errno=err; perror("sock_set_error"); return WSAEFAULT;
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->inherit );
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->inherit );
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 GENERIC_READ|GENERIC_WRITE|SYNCHRONIZE, &sock_ops)))
806 old_event = sock->event;
807 sock->mask = req->mask;
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,GENERIC_READ|GENERIC_WRITE|SYNCHRONIZE,&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 GENERIC_READ|GENERIC_WRITE|SYNCHRONIZE, &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,
898 GENERIC_READ|GENERIC_WRITE|SYNCHRONIZE,&sock_ops );
901 set_error( WSAENOTSOCK );
904 acceptsock = (struct sock*)get_handle_obj( current->process,req->deferred,
905 GENERIC_READ|GENERIC_WRITE|SYNCHRONIZE,&sock_ops );
908 release_object( sock );
909 set_error( WSAENOTSOCK );
912 sock->deferred = acceptsock;
913 release_object( sock );