1 /* GLIB - Library of useful routines for C programming
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
4 * giowin32.c: IO Channels for Win32.
5 * Copyright 1998 Owen Taylor and Tor Lillqvist
6 * Copyright 1999-2000 Tor Lillqvist and Craig Setera
7 * Copyright 2001-2003 Andrew Lanoix
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the
21 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 * Boston, MA 02111-1307, USA.
26 * Modified by the GLib Team and others 1997-2000. See the AUTHORS
27 * file for a list of people on the GLib Team. See the ChangeLog
28 * files for a list of changes. These files are distributed with
29 * GLib at ftp://ftp.gtk.org/pub/gtk/.
51 typedef struct _GIOWin32Channel GIOWin32Channel;
52 typedef struct _GIOWin32Watch GIOWin32Watch;
54 #define BUFFER_SIZE 4096
57 G_IO_WIN32_WINDOWS_MESSAGES, /* Windows messages */
58 G_IO_WIN32_FILE_DESC, /* Unix-like file descriptors from
59 * _open() or _pipe(), except for console IO.
60 * Have to create separate thread to read.
62 G_IO_WIN32_CONSOLE, /* Console IO (usually stdin, stdout, stderr) */
63 G_IO_WIN32_SOCKET /* Sockets. No separate thread */
64 } GIOWin32ChannelType;
66 struct _GIOWin32Channel {
68 gint fd; /* Either a Unix-like file handle as provided
69 * by the Microsoft C runtime, or a SOCKET
70 * as provided by WinSock.
72 GIOWin32ChannelType type;
76 /* This is used by G_IO_WIN32_WINDOWS_MESSAGES channels */
77 HWND hwnd; /* handle of window, or NULL */
79 /* Following fields are used by fd channels. */
80 CRITICAL_SECTION mutex;
82 int direction; /* 0 means we read from it,
83 * 1 means we write to it.
86 gboolean running; /* Is reader thread running. FALSE if
87 * EOF has been reached.
89 gboolean needs_close; /* If the channel has been closed while
90 * the reader thread was still running.
92 guint thread_id; /* If non-NULL has a reader thread, or has
94 HANDLE data_avail_event;
98 /* Following fields used by fd channels for input */
100 /* Data is kept in a circular buffer. To be able to distinguish between
101 * empty and full buffer, we cannot fill it completely, but have to
102 * leave a one character gap.
104 * Data available is between indexes rdp and wrp-1 (modulo BUFFER_SIZE).
107 * Full: (wrp + 1) % BUFFER_SIZE == rdp
110 guchar *buffer; /* (Circular) buffer */
111 gint wrp, rdp; /* Buffer indices for writing and reading */
112 HANDLE space_avail_event;
114 /* Following fields used by socket channels */
118 gboolean write_would_have_blocked;
121 #define LOCK(mutex) EnterCriticalSection (&mutex)
122 #define UNLOCK(mutex) LeaveCriticalSection (&mutex)
124 struct _GIOWin32Watch {
128 GIOCondition condition;
132 g_win32_print_access_mode (int flags)
134 g_print ("%s%s%s%s%s%s%s%s%s%s",
135 ((flags & 0x3) == _O_RDWR ? "O_RDWR" :
136 ((flags & 0x3) == _O_RDONLY ? "O_RDONLY" :
137 ((flags & 0x3) == _O_WRONLY ? "O_WRONLY" : "0"))),
138 (flags & _O_APPEND ? "|O_APPEND" : ""),
139 (flags & _O_RANDOM ? "|O_RANDOM" : ""),
140 (flags & _O_SEQUENTIAL ? "|O_SEQUENTIAL" : ""),
141 (flags & _O_TEMPORARY ? "|O_TEMPORARY" : ""),
142 (flags & _O_CREAT ? "|O_CREAT" : ""),
143 (flags & _O_TRUNC ? "|O_TRUNC" : ""),
144 (flags & _O_EXCL ? "|O_EXCL" : ""),
145 (flags & _O_TEXT ? "|O_TEXT" : ""),
146 (flags & _O_BINARY ? "|O_BINARY" : ""));
150 g_win32_print_gioflags (GIOFlags flags)
154 if (flags & G_IO_FLAG_APPEND)
155 bar = "|", g_print ("APPEND");
156 if (flags & G_IO_FLAG_NONBLOCK)
157 g_print ("%sNONBLOCK", bar), bar = "|";
158 if (flags & G_IO_FLAG_IS_READABLE)
159 g_print ("%sREADABLE", bar), bar = "|";
160 if (flags & G_IO_FLAG_IS_WRITEABLE)
161 g_print ("%sWRITEABLE", bar), bar = "|";
162 if (flags & G_IO_FLAG_IS_SEEKABLE)
163 g_print ("%sSEEKABLE", bar), bar = "|";
167 event_mask_to_string (int mask)
170 int checked_bits = 0;
176 #define BIT(n) checked_bits |= FD_##n; if (mask & FD_##n) bufp += sprintf (bufp, "%s" #n, (bufp>buf ? "|" : ""))
186 BIT (ROUTING_INTERFACE_CHANGE);
187 BIT (ADDRESS_LIST_CHANGE);
191 if ((mask & ~checked_bits) != 0)
192 bufp += sprintf (bufp, "|%#x", mask & ~checked_bits);
194 return g_quark_to_string (g_quark_from_string (buf));
198 condition_to_string (GIOCondition condition)
201 int checked_bits = 0;
207 #define BIT(n) checked_bits |= G_IO_##n; if (condition & G_IO_##n) bufp += sprintf (bufp, "%s" #n, (bufp>buf ? "|" : ""))
218 if ((condition & ~checked_bits) != 0)
219 bufp += sprintf (bufp, "|%#x", condition & ~checked_bits);
221 return g_quark_to_string (g_quark_from_string (buf));
225 g_io_win32_get_debug_flag (void)
227 return (getenv ("G_IO_WIN32_DEBUG") != NULL);
231 winsock_error_message (int number)
233 static char unk[100];
237 return "Interrupted function call";
239 return "Permission denied";
241 return "Bad address";
243 return "Invalid argument";
245 return "Too many open sockets";
247 return "Resource temporarily unavailable";
249 return "Operation now in progress";
251 return "Operation already in progress";
253 return "Socket operation on nonsocket";
254 case WSAEDESTADDRREQ:
255 return "Destination address required";
257 return "Message too long";
259 return "Protocol wrong type for socket";
261 return "Bad protocol option";
262 case WSAEPROTONOSUPPORT:
263 return "Protocol not supported";
264 case WSAESOCKTNOSUPPORT:
265 return "Socket type not supported";
267 return "Operation not supported on transport endpoint";
268 case WSAEPFNOSUPPORT:
269 return "Protocol family not supported";
270 case WSAEAFNOSUPPORT:
271 return "Address family not supported by protocol family";
273 return "Address already in use";
274 case WSAEADDRNOTAVAIL:
275 return "Address not available";
277 return "Network interface is not configured";
279 return "Network is unreachable";
281 return "Network dropped connection on reset";
282 case WSAECONNABORTED:
283 return "Software caused connection abort";
285 return "Connection reset by peer";
287 return "No buffer space available";
289 return "Socket is already connected";
291 return "Socket is not connected";
293 return "Can't send after socket shutdown";
295 return "Connection timed out";
296 case WSAECONNREFUSED:
297 return "Connection refused";
299 return "Host is down";
300 case WSAEHOSTUNREACH:
301 return "Host is unreachable";
303 return "Too many processes";
305 return "Network subsystem is unavailable";
306 case WSAVERNOTSUPPORTED:
307 return "Winsock.dll version out of range";
308 case WSANOTINITIALISED:
309 return "Successful WSAStartup not yet performed";
311 return "Graceful shutdown in progress";
312 case WSATYPE_NOT_FOUND:
313 return "Class type not found";
314 case WSAHOST_NOT_FOUND:
315 return "Host not found";
317 return "Nonauthoritative host not found";
319 return "This is a nonrecoverable error";
321 return "Valid name, no data record of requested type";
322 case WSA_INVALID_HANDLE:
323 return "Specified event object handle is invalid";
324 case WSA_INVALID_PARAMETER:
325 return "One or more parameters are invalid";
326 case WSA_IO_INCOMPLETE:
327 return "Overlapped I/O event object not in signaled state";
328 case WSA_NOT_ENOUGH_MEMORY:
329 return "Insufficient memory available";
330 case WSA_OPERATION_ABORTED:
331 return "Overlapped operation aborted";
332 case WSAEINVALIDPROCTABLE:
333 return "Invalid procedure table from service provider";
334 case WSAEINVALIDPROVIDER:
335 return "Invalid service provider version number";
336 case WSAEPROVIDERFAILEDINIT:
337 return "Unable to initialize a service provider";
338 case WSASYSCALLFAILURE:
339 return "System call failure";
341 sprintf (unk, "Unknown WinSock error %d", number);
347 g_io_channel_win32_init (GIOWin32Channel *channel)
349 channel->debug = g_io_win32_get_debug_flag ();
350 channel->buffer = NULL;
351 channel->running = FALSE;
352 channel->needs_close = FALSE;
353 channel->thread_id = 0;
354 channel->data_avail_event = NULL;
355 channel->revents = 0;
356 channel->space_avail_event = NULL;
357 channel->event_mask = 0;
358 channel->last_events = 0;
360 channel->write_would_have_blocked = FALSE;
361 InitializeCriticalSection (&channel->mutex);
365 create_events (GIOWin32Channel *channel)
367 SECURITY_ATTRIBUTES sec_attrs;
369 sec_attrs.nLength = sizeof (SECURITY_ATTRIBUTES);
370 sec_attrs.lpSecurityDescriptor = NULL;
371 sec_attrs.bInheritHandle = FALSE;
373 /* The data available event is manual reset, the space available event
374 * is automatic reset.
376 if (!(channel->data_avail_event = CreateEvent (&sec_attrs, TRUE, FALSE, NULL))
377 || !(channel->space_avail_event = CreateEvent (&sec_attrs, FALSE, FALSE, NULL)))
379 gchar *emsg = g_win32_error_message (GetLastError ());
380 g_error ("Error creating event: %s", emsg);
385 static unsigned __stdcall
386 read_thread (void *parameter)
388 GIOWin32Channel *channel = parameter;
392 g_io_channel_ref ((GIOChannel *)channel);
395 g_print ("read_thread %#x: start fd=%d, data_avail=%#x space_avail=%#x\n",
398 (guint) channel->data_avail_event,
399 (guint) channel->space_avail_event);
401 channel->direction = 0;
402 channel->buffer = g_malloc (BUFFER_SIZE);
403 channel->rdp = channel->wrp = 0;
404 channel->running = TRUE;
406 SetEvent (channel->space_avail_event);
408 LOCK (channel->mutex);
409 while (channel->running)
412 g_print ("read_thread %#x: rdp=%d, wrp=%d\n",
413 channel->thread_id, channel->rdp, channel->wrp);
414 if ((channel->wrp + 1) % BUFFER_SIZE == channel->rdp)
418 g_print ("read_thread %#x: resetting space_avail\n",
420 ResetEvent (channel->space_avail_event);
422 g_print ("read_thread %#x: waiting for space\n",
424 UNLOCK (channel->mutex);
425 WaitForSingleObject (channel->space_avail_event, INFINITE);
426 LOCK (channel->mutex);
428 g_print ("read_thread %#x: rdp=%d, wrp=%d\n",
429 channel->thread_id, channel->rdp, channel->wrp);
432 buffer = channel->buffer + channel->wrp;
434 /* Always leave at least one byte unused gap to be able to
435 * distinguish between the full and empty condition...
437 nbytes = MIN ((channel->rdp + BUFFER_SIZE - channel->wrp - 1) % BUFFER_SIZE,
438 BUFFER_SIZE - channel->wrp);
441 g_print ("read_thread %#x: calling read() for %d bytes\n",
442 channel->thread_id, nbytes);
444 UNLOCK (channel->mutex);
446 nbytes = read (channel->fd, buffer, nbytes);
448 LOCK (channel->mutex);
450 channel->revents = G_IO_IN;
452 channel->revents |= G_IO_HUP;
454 channel->revents |= G_IO_ERR;
457 g_print ("read_thread %#x: read() returned %d, rdp=%d, wrp=%d\n",
458 channel->thread_id, nbytes, channel->rdp, channel->wrp);
463 channel->wrp = (channel->wrp + nbytes) % BUFFER_SIZE;
465 g_print ("read_thread %#x: rdp=%d, wrp=%d, setting data_avail\n",
466 channel->thread_id, channel->rdp, channel->wrp);
467 SetEvent (channel->data_avail_event);
470 channel->running = FALSE;
471 if (channel->needs_close)
474 g_print ("read_thread %#x: channel fd %d needs closing\n",
475 channel->thread_id, channel->fd);
481 g_print ("read_thread %#x: EOF, rdp=%d, wrp=%d, setting data_avail\n",
482 channel->thread_id, channel->rdp, channel->wrp);
483 SetEvent (channel->data_avail_event);
484 UNLOCK (channel->mutex);
486 g_io_channel_unref ((GIOChannel *)channel);
488 /* No need to call _endthreadex(), the actual thread starter routine
489 * in MSVCRT (see crt/src/threadex.c:_threadstartex) calls
490 * _endthreadex() for us.
496 static unsigned __stdcall
497 write_thread (void *parameter)
499 GIOWin32Channel *channel = parameter;
503 g_io_channel_ref ((GIOChannel *)channel);
506 g_print ("write_thread %#x: start fd=%d, data_avail=%#x space_avail=%#x\n",
509 (guint) channel->data_avail_event,
510 (guint) channel->space_avail_event);
512 channel->direction = 1;
513 channel->buffer = g_malloc (BUFFER_SIZE);
514 channel->rdp = channel->wrp = 0;
515 channel->running = TRUE;
517 SetEvent (channel->space_avail_event);
519 /* We use the same event objects as for a reader thread, but with
520 * reversed meaning. So, space_avail is used if data is available
521 * for writing, and data_avail is used if space is available in the
525 LOCK (channel->mutex);
526 while (channel->running || channel->rdp != channel->wrp)
529 g_print ("write_thread %#x: rdp=%d, wrp=%d\n",
530 channel->thread_id, channel->rdp, channel->wrp);
531 if (channel->wrp == channel->rdp)
533 /* Buffer is empty. */
535 g_print ("write_thread %#x: resetting space_avail\n",
537 ResetEvent (channel->space_avail_event);
539 g_print ("write_thread %#x: waiting for data\n",
541 channel->revents = G_IO_OUT;
542 SetEvent (channel->data_avail_event);
543 UNLOCK (channel->mutex);
544 WaitForSingleObject (channel->space_avail_event, INFINITE);
546 LOCK (channel->mutex);
547 if (channel->rdp == channel->wrp)
551 g_print ("write_thread %#x: rdp=%d, wrp=%d\n",
552 channel->thread_id, channel->rdp, channel->wrp);
555 buffer = channel->buffer + channel->rdp;
556 if (channel->rdp < channel->wrp)
557 nbytes = channel->wrp - channel->rdp;
559 nbytes = BUFFER_SIZE - channel->rdp;
562 g_print ("write_thread %#x: calling write() for %d bytes\n",
563 channel->thread_id, nbytes);
565 UNLOCK (channel->mutex);
566 nbytes = write (channel->fd, buffer, nbytes);
567 LOCK (channel->mutex);
570 g_print ("write_thread %#x: write(%i) returned %d, rdp=%d, wrp=%d\n",
571 channel->thread_id, channel->fd, nbytes, channel->rdp, channel->wrp);
573 channel->revents = 0;
575 channel->revents |= G_IO_OUT;
576 else if (nbytes <= 0)
577 channel->revents |= G_IO_ERR;
579 channel->rdp = (channel->rdp + nbytes) % BUFFER_SIZE;
585 g_print ("write_thread: setting data_avail for thread %#x\n",
587 SetEvent (channel->data_avail_event);
590 channel->running = FALSE;
591 if (channel->needs_close)
594 g_print ("write_thread %#x: channel fd %d needs closing\n",
595 channel->thread_id, channel->fd);
600 UNLOCK (channel->mutex);
602 g_io_channel_unref ((GIOChannel *)channel);
608 create_thread (GIOWin32Channel *channel,
609 GIOCondition condition,
610 unsigned (__stdcall *thread) (void *parameter))
612 HANDLE thread_handle;
614 thread_handle = (HANDLE) _beginthreadex (NULL, 0, thread, channel, 0,
615 &channel->thread_id);
616 if (thread_handle == 0)
617 g_warning (G_STRLOC ": Error creating reader thread: %s",
619 else if (!CloseHandle (thread_handle))
620 g_warning (G_STRLOC ": Error closing thread handle: %s\n",
621 g_win32_error_message (GetLastError ()));
623 WaitForSingleObject (channel->space_avail_event, INFINITE);
627 buffer_read (GIOWin32Channel *channel,
636 LOCK (channel->mutex);
638 g_print ("reading from thread %#x %d bytes, rdp=%d, wrp=%d\n",
639 channel->thread_id, count, channel->rdp, channel->wrp);
641 if (channel->wrp == channel->rdp)
643 UNLOCK (channel->mutex);
645 g_print ("waiting for data from thread %#x\n", channel->thread_id);
646 WaitForSingleObject (channel->data_avail_event, INFINITE);
648 g_print ("done waiting for data from thread %#x\n", channel->thread_id);
649 LOCK (channel->mutex);
650 if (channel->wrp == channel->rdp && !channel->running)
653 g_print ("wrp==rdp, !running\n");
654 UNLOCK (channel->mutex);
656 return G_IO_STATUS_EOF;
660 if (channel->rdp < channel->wrp)
661 nbytes = channel->wrp - channel->rdp;
663 nbytes = BUFFER_SIZE - channel->rdp;
664 UNLOCK (channel->mutex);
665 nbytes = MIN (left, nbytes);
667 g_print ("moving %d bytes from thread %#x\n",
668 nbytes, channel->thread_id);
669 memcpy (dest, channel->buffer + channel->rdp, nbytes);
672 LOCK (channel->mutex);
673 channel->rdp = (channel->rdp + nbytes) % BUFFER_SIZE;
675 g_print ("setting space_avail for thread %#x\n", channel->thread_id);
676 SetEvent (channel->space_avail_event);
678 g_print ("for thread %#x: rdp=%d, wrp=%d\n",
679 channel->thread_id, channel->rdp, channel->wrp);
680 if (channel->running && channel->wrp == channel->rdp)
683 g_print ("resetting data_avail of thread %#x\n",
685 ResetEvent (channel->data_avail_event);
687 UNLOCK (channel->mutex);
689 /* We have no way to indicate any errors form the actual
690 * read() or recv() call in the reader thread. Should we have?
692 *bytes_read = count - left;
693 return (*bytes_read > 0) ? G_IO_STATUS_NORMAL : G_IO_STATUS_EOF;
698 buffer_write (GIOWin32Channel *channel,
701 gsize *bytes_written,
707 LOCK (channel->mutex);
709 g_print ("buffer_write: writing to thread %#x %d bytes, rdp=%d, wrp=%d\n",
710 channel->thread_id, count, channel->rdp, channel->wrp);
712 if ((channel->wrp + 1) % BUFFER_SIZE == channel->rdp)
716 g_print ("buffer_write: tid %#x: resetting data_avail\n",
718 ResetEvent (channel->data_avail_event);
720 g_print ("buffer_write: tid %#x: waiting for space\n",
722 UNLOCK (channel->mutex);
723 WaitForSingleObject (channel->data_avail_event, INFINITE);
724 LOCK (channel->mutex);
726 g_print ("buffer_write: tid %#x: rdp=%d, wrp=%d\n",
727 channel->thread_id, channel->rdp, channel->wrp);
730 nbytes = MIN ((channel->rdp + BUFFER_SIZE - channel->wrp - 1) % BUFFER_SIZE,
731 BUFFER_SIZE - channel->wrp);
733 UNLOCK (channel->mutex);
734 nbytes = MIN (left, nbytes);
736 g_print ("buffer_write: tid %#x: writing %d bytes\n",
737 channel->thread_id, nbytes);
738 memcpy (channel->buffer + channel->wrp, dest, nbytes);
741 LOCK (channel->mutex);
743 channel->wrp = (channel->wrp + nbytes) % BUFFER_SIZE;
745 g_print ("buffer_write: tid %#x: rdp=%d, wrp=%d, setting space_avail\n",
746 channel->thread_id, channel->rdp, channel->wrp);
747 SetEvent (channel->space_avail_event);
749 if ((channel->wrp + 1) % BUFFER_SIZE == channel->rdp)
753 g_print ("buffer_write: tid %#x: resetting data_avail\n",
755 ResetEvent (channel->data_avail_event);
758 UNLOCK (channel->mutex);
760 /* We have no way to indicate any errors form the actual
761 * write() call in the writer thread. Should we have?
763 *bytes_written = count - left;
764 return (*bytes_written > 0) ? G_IO_STATUS_NORMAL : G_IO_STATUS_EOF;
769 g_io_win32_prepare (GSource *source,
772 GIOWin32Watch *watch = (GIOWin32Watch *)source;
773 GIOCondition buffer_condition = g_io_channel_get_buffer_condition (watch->channel);
774 GIOWin32Channel *channel = (GIOWin32Channel *)watch->channel;
779 switch (channel->type)
781 case G_IO_WIN32_WINDOWS_MESSAGES:
782 case G_IO_WIN32_CONSOLE:
785 case G_IO_WIN32_FILE_DESC:
787 g_print ("g_io_win32_prepare: for thread %#x buffer_condition:{%s}\n"
788 " watch->pollfd.events:{%s} watch->pollfd.revents:{%s} channel->revents:{%s}\n",
789 channel->thread_id, condition_to_string (buffer_condition),
790 condition_to_string (watch->pollfd.events),
791 condition_to_string (watch->pollfd.revents),
792 condition_to_string (channel->revents));
794 LOCK (channel->mutex);
795 if (channel->running)
797 if (channel->direction == 0 && channel->wrp == channel->rdp)
800 g_print ("g_io_win32_prepare: for thread %#x, setting channel->revents = 0\n",
802 channel->revents = 0;
807 if (channel->direction == 1
808 && (channel->wrp + 1) % BUFFER_SIZE == channel->rdp)
811 g_print ("g_io_win32_prepare: for thread %#x, setting channel->revents = %i\n",
812 channel->thread_id, 0);
813 channel->revents = 0;
816 UNLOCK (channel->mutex);
819 case G_IO_WIN32_SOCKET:
821 if (watch->condition & G_IO_IN)
822 event_mask |= (FD_READ | FD_ACCEPT);
823 if (watch->condition & G_IO_OUT)
824 event_mask |= (FD_WRITE | FD_CONNECT);
825 if (watch->condition & G_IO_HUP)
826 event_mask |= FD_CLOSE;
828 if (channel->event_mask != event_mask /* || channel->event != watch->pollfd.fd*/)
831 g_print ("g_io_win32_prepare: WSAEventSelect(%d, %#x, {%s}\n",
832 channel->fd, watch->pollfd.fd,
833 event_mask_to_string (event_mask));
834 if (WSAEventSelect (channel->fd, (HANDLE) watch->pollfd.fd,
835 event_mask) == SOCKET_ERROR)
837 channel->event_mask = event_mask;
839 channel->event = watch->pollfd.fd;
841 channel->last_events = 0;
846 g_assert_not_reached ();
849 return ((watch->condition & buffer_condition) == watch->condition);
853 g_io_win32_check (GSource *source)
856 GIOWin32Watch *watch = (GIOWin32Watch *)source;
857 GIOWin32Channel *channel = (GIOWin32Channel *)watch->channel;
858 GIOCondition buffer_condition = g_io_channel_get_buffer_condition (watch->channel);
859 WSANETWORKEVENTS events;
861 switch (channel->type)
863 case G_IO_WIN32_WINDOWS_MESSAGES:
864 return (PeekMessage (&msg, channel->hwnd, 0, 0, PM_NOREMOVE));
866 case G_IO_WIN32_FILE_DESC:
868 g_print ("g_io_win32_check: for thread %#x buffer_condition=%s\n"
869 " watch->pollfd.events={%s} watch->pollfd.revents={%s} channel->revents={%s}\n",
870 channel->thread_id, condition_to_string (buffer_condition),
871 condition_to_string (watch->pollfd.events),
872 condition_to_string (watch->pollfd.revents),
873 condition_to_string (channel->revents));
875 watch->pollfd.revents = (watch->pollfd.events & channel->revents);
877 return ((watch->pollfd.revents | buffer_condition) & watch->condition);
879 case G_IO_WIN32_CONSOLE:
880 if (watch->channel->is_writeable)
882 else if (watch->channel->is_readable)
886 if (PeekConsoleInput ((HANDLE) watch->pollfd.fd, &buffer, 1, &n) &&
889 /* _kbhit() does quite complex processing to find out
890 * whether at least one of the key events pending corresponds
891 * to a "real" character that can be read.
896 /* Discard all other kinds of events */
897 ReadConsoleInput ((HANDLE) watch->pollfd.fd, &buffer, 1, &n);
902 case G_IO_WIN32_SOCKET:
903 if (channel->last_events & FD_WRITE)
906 g_print ("g_io_win32_check: sock=%d event=%#x last_events has FD_WRITE\n",
907 channel->fd, watch->pollfd.fd);
911 WSAEnumNetworkEvents (channel->fd, 0, &events);
914 g_print ("g_io_win32_check: WSAEnumNetworkEvents (%d, %#x) revents={%s} condition={%s} events={%s}\n",
915 channel->fd, watch->pollfd.fd,
916 condition_to_string (watch->pollfd.revents),
917 condition_to_string (watch->condition),
918 event_mask_to_string (events.lNetworkEvents));
920 if (watch->pollfd.revents != 0 &&
921 events.lNetworkEvents == 0 &&
922 !(channel->event_mask & FD_WRITE))
924 channel->event_mask = 0;
926 g_print ("g_io_win32_check: WSAEventSelect(%d, %#x, {})\n",
927 channel->fd, watch->pollfd.fd);
928 WSAEventSelect (channel->fd, (HANDLE) watch->pollfd.fd, 0);
930 g_print ("g_io_win32_check: ResetEvent(%#x)\n",
932 ResetEvent ((HANDLE) watch->pollfd.fd);
934 channel->last_events = events.lNetworkEvents;
936 watch->pollfd.revents = 0;
937 if (channel->last_events & (FD_READ | FD_ACCEPT))
938 watch->pollfd.revents |= G_IO_IN;
939 if (channel->last_events & (FD_WRITE | FD_CONNECT))
940 watch->pollfd.revents |= G_IO_OUT;
941 if (watch->pollfd.revents == 0 && (channel->last_events & (FD_CLOSE)))
942 watch->pollfd.revents |= G_IO_HUP;
944 if (!channel->write_would_have_blocked && (channel->event_mask & FD_WRITE))
945 watch->pollfd.revents |= G_IO_OUT; /* This sucks but... */
947 return ((watch->pollfd.revents | buffer_condition) & watch->condition);
950 g_assert_not_reached ();
956 g_io_win32_dispatch (GSource *source,
957 GSourceFunc callback,
960 GIOFunc func = (GIOFunc)callback;
961 GIOWin32Watch *watch = (GIOWin32Watch *)source;
962 GIOWin32Channel *channel = (GIOWin32Channel *)watch->channel;
963 GIOCondition buffer_condition = g_io_channel_get_buffer_condition (watch->channel);
967 g_warning (G_STRLOC ": GIOWin32Watch dispatched without callback\n"
968 "You must call g_source_connect().");
973 g_print ("g_io_win32_dispatch: pollfd.revents=%s condition=%s result=%s\n",
974 condition_to_string (watch->pollfd.revents),
975 condition_to_string (watch->condition),
976 condition_to_string ((watch->pollfd.revents | buffer_condition) & watch->condition));
978 return (*func) (watch->channel,
979 (watch->pollfd.revents | buffer_condition) & watch->condition,
984 g_io_win32_finalize (GSource *source)
986 GIOWin32Watch *watch = (GIOWin32Watch *)source;
987 GIOWin32Channel *channel = (GIOWin32Channel *)watch->channel;
989 switch (channel->type)
991 case G_IO_WIN32_WINDOWS_MESSAGES:
992 case G_IO_WIN32_CONSOLE:
995 case G_IO_WIN32_FILE_DESC:
996 LOCK (channel->mutex);
998 g_print ("g_io_win32_finalize: channel with thread %#x\n",
1000 UNLOCK (channel->mutex);
1003 case G_IO_WIN32_SOCKET:
1005 g_print ("g_io_win32_finalize: channel is for sock=%d\n", channel->fd);
1007 CloseHandle ((HANDLE) watch->pollfd.fd);
1009 channel->event_mask = 0;
1014 g_assert_not_reached ();
1017 g_io_channel_unref (watch->channel);
1020 GSourceFuncs g_io_watch_funcs = {
1023 g_io_win32_dispatch,
1028 g_io_win32_msg_read (GIOChannel *channel,
1034 GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
1035 MSG msg; /* In case of alignment problems */
1037 if (count < sizeof (MSG))
1039 g_set_error (err, G_IO_CHANNEL_ERROR, G_IO_CHANNEL_ERROR_INVAL,
1040 "Incorrect message size"); /* Informative enough error message? */
1041 return G_IO_STATUS_ERROR;
1044 if (win32_channel->debug)
1045 g_print ("g_io_win32_msg_read: for %#x\n",
1046 (guint) win32_channel->hwnd);
1047 if (!PeekMessage (&msg, win32_channel->hwnd, 0, 0, PM_REMOVE))
1048 return G_IO_STATUS_AGAIN;
1050 memmove (buf, &msg, sizeof (MSG));
1051 *bytes_read = sizeof (MSG);
1053 return G_IO_STATUS_NORMAL;
1057 g_io_win32_msg_write (GIOChannel *channel,
1060 gsize *bytes_written,
1063 GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
1066 if (count != sizeof (MSG))
1068 g_set_error (err, G_IO_CHANNEL_ERROR, G_IO_CHANNEL_ERROR_INVAL,
1069 "Incorrect message size"); /* Informative enough error message? */
1070 return G_IO_STATUS_ERROR;
1073 /* In case of alignment problems */
1074 memmove (&msg, buf, sizeof (MSG));
1075 if (!PostMessage (win32_channel->hwnd, msg.message, msg.wParam, msg.lParam))
1077 gchar *emsg = g_win32_error_message (GetLastError ());
1078 g_set_error (err, G_IO_CHANNEL_ERROR, G_IO_CHANNEL_ERROR_FAILED, emsg);
1080 return G_IO_STATUS_ERROR;
1083 *bytes_written = sizeof (MSG);
1085 return G_IO_STATUS_NORMAL;
1089 g_io_win32_msg_close (GIOChannel *channel,
1092 /* Nothing to be done. Or should we set hwnd to some invalid value? */
1094 return G_IO_STATUS_NORMAL;
1098 g_io_win32_free (GIOChannel *channel)
1100 GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
1102 if (win32_channel->debug)
1103 g_print ("g_io_win32_free channel fd=%d\n", win32_channel->fd);
1105 if (win32_channel->data_avail_event)
1106 CloseHandle (win32_channel->data_avail_event);
1107 if (win32_channel->space_avail_event)
1108 CloseHandle (win32_channel->space_avail_event);
1109 if (win32_channel->type == G_IO_WIN32_SOCKET)
1110 WSAEventSelect (win32_channel->fd, NULL, 0);
1111 DeleteCriticalSection (&win32_channel->mutex);
1113 g_free (win32_channel->buffer);
1114 g_free (win32_channel);
1118 g_io_win32_msg_create_watch (GIOChannel *channel,
1119 GIOCondition condition)
1121 GIOWin32Watch *watch;
1124 source = g_source_new (&g_io_watch_funcs, sizeof (GIOWin32Watch));
1125 watch = (GIOWin32Watch *)source;
1127 watch->channel = channel;
1128 g_io_channel_ref (channel);
1130 watch->condition = condition;
1132 watch->pollfd.fd = G_WIN32_MSG_HANDLE;
1133 watch->pollfd.events = condition;
1135 g_source_add_poll (source, &watch->pollfd);
1141 g_io_win32_fd_and_console_read (GIOChannel *channel,
1147 GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
1150 if (win32_channel->debug)
1151 g_print ("g_io_win32_fd_read: fd=%d count=%d\n",
1152 win32_channel->fd, count);
1154 if (win32_channel->thread_id)
1156 return buffer_read (win32_channel, buf, count, bytes_read, err);
1159 result = read (win32_channel->fd, buf, count);
1161 if (win32_channel->debug)
1162 g_print ("g_io_win32_fd_read: read() => %d\n", result);
1172 return G_IO_STATUS_AGAIN;
1175 g_set_error (err, G_IO_CHANNEL_ERROR,
1176 g_io_channel_error_from_errno (errno),
1177 g_strerror (errno));
1178 return G_IO_STATUS_ERROR;
1182 *bytes_read = result;
1184 return (result > 0) ? G_IO_STATUS_NORMAL : G_IO_STATUS_EOF;
1188 g_io_win32_fd_and_console_write (GIOChannel *channel,
1191 gsize *bytes_written,
1194 GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
1197 if (win32_channel->thread_id)
1199 return buffer_write (win32_channel, buf, count, bytes_written, err);
1202 result = write (win32_channel->fd, buf, count);
1203 if (win32_channel->debug)
1204 g_print ("g_io_win32_fd_write: fd=%d count=%d => %d\n",
1205 win32_channel->fd, count, result);
1215 return G_IO_STATUS_AGAIN;
1218 g_set_error (err, G_IO_CHANNEL_ERROR,
1219 g_io_channel_error_from_errno (errno),
1220 g_strerror (errno));
1221 return G_IO_STATUS_ERROR;
1225 *bytes_written = result;
1227 return G_IO_STATUS_NORMAL;
1231 g_io_win32_fd_seek (GIOChannel *channel,
1236 GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
1253 whence = -1; /* Keep the compiler quiet */
1254 g_assert_not_reached ();
1258 tmp_offset = offset;
1259 if (tmp_offset != offset)
1261 g_set_error (err, G_IO_CHANNEL_ERROR,
1262 g_io_channel_error_from_errno (EINVAL),
1263 g_strerror (EINVAL));
1264 return G_IO_STATUS_ERROR;
1267 result = lseek (win32_channel->fd, tmp_offset, whence);
1271 g_set_error (err, G_IO_CHANNEL_ERROR,
1272 g_io_channel_error_from_errno (errno),
1273 g_strerror (errno));
1274 return G_IO_STATUS_ERROR;
1277 return G_IO_STATUS_NORMAL;
1281 g_io_win32_fd_close (GIOChannel *channel,
1284 GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
1286 if (win32_channel->debug)
1287 g_print ("thread %#x: closing fd %d\n",
1288 win32_channel->thread_id,
1290 LOCK (win32_channel->mutex);
1291 if (win32_channel->running)
1293 if (win32_channel->debug)
1294 g_print ("thread %#x: running, marking fd %d for later close\n",
1295 win32_channel->thread_id, win32_channel->fd);
1296 win32_channel->running = FALSE;
1297 win32_channel->needs_close = TRUE;
1298 if (win32_channel->direction == 0)
1299 SetEvent (win32_channel->data_avail_event);
1301 SetEvent (win32_channel->space_avail_event);
1305 if (win32_channel->debug)
1306 g_print ("closing fd %d\n", win32_channel->fd);
1307 close (win32_channel->fd);
1308 if (win32_channel->debug)
1309 g_print ("closed fd %d, setting to -1\n",
1311 win32_channel->fd = -1;
1313 UNLOCK (win32_channel->mutex);
1315 /* FIXME error detection? */
1317 return G_IO_STATUS_NORMAL;
1321 g_io_win32_fd_create_watch (GIOChannel *channel,
1322 GIOCondition condition)
1324 GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
1325 GSource *source = g_source_new (&g_io_watch_funcs, sizeof (GIOWin32Watch));
1326 GIOWin32Watch *watch = (GIOWin32Watch *)source;
1328 watch->channel = channel;
1329 g_io_channel_ref (channel);
1331 watch->condition = condition;
1333 if (win32_channel->data_avail_event == NULL)
1334 create_events (win32_channel);
1336 watch->pollfd.fd = (gint) win32_channel->data_avail_event;
1337 watch->pollfd.events = condition;
1339 if (win32_channel->debug)
1340 g_print ("g_io_win32_fd_create_watch: fd=%d condition={%s} handle=%#x\n",
1341 win32_channel->fd, condition_to_string (condition), watch->pollfd.fd);
1343 LOCK (win32_channel->mutex);
1344 if (win32_channel->thread_id == 0)
1346 if (condition & G_IO_IN)
1347 create_thread (win32_channel, condition, read_thread);
1348 else if (condition & G_IO_OUT)
1349 create_thread (win32_channel, condition, write_thread);
1352 g_source_add_poll (source, &watch->pollfd);
1353 UNLOCK (win32_channel->mutex);
1359 g_io_win32_console_close (GIOChannel *channel,
1362 GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
1364 if (close (win32_channel->fd) < 0)
1366 g_set_error (err, G_IO_CHANNEL_ERROR,
1367 g_io_channel_error_from_errno (errno),
1368 g_strerror (errno));
1369 return G_IO_STATUS_ERROR;
1372 return G_IO_STATUS_NORMAL;
1376 g_io_win32_console_create_watch (GIOChannel *channel,
1377 GIOCondition condition)
1379 GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
1380 GSource *source = g_source_new (&g_io_watch_funcs, sizeof (GIOWin32Watch));
1381 GIOWin32Watch *watch = (GIOWin32Watch *)source;
1383 watch->channel = channel;
1384 g_io_channel_ref (channel);
1386 watch->condition = condition;
1388 watch->pollfd.fd = (gint) _get_osfhandle (win32_channel->fd);
1389 watch->pollfd.events = condition;
1391 g_source_add_poll (source, &watch->pollfd);
1397 g_io_win32_sock_read (GIOChannel *channel,
1403 GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
1405 GIOChannelError error;
1408 if (win32_channel->debug)
1409 g_print ("g_io_win32_sock_read: sockfd=%d count=%d\n",
1410 win32_channel->fd, count);
1412 result = recv (win32_channel->fd, buf, count, 0);
1413 if (result == SOCKET_ERROR)
1414 winsock_error = WSAGetLastError ();
1416 if (win32_channel->debug)
1417 g_print ("g_io_win32_sock_read: recv=%d %s\n",
1419 (result == SOCKET_ERROR ? winsock_error_message (winsock_error) : ""));
1421 if (result == SOCKET_ERROR)
1425 switch (winsock_error)
1428 error = G_IO_CHANNEL_ERROR_INVAL;
1430 case WSAEWOULDBLOCK:
1431 return G_IO_STATUS_AGAIN;
1433 error = G_IO_CHANNEL_ERROR_FAILED;
1436 g_set_error (err, G_IO_CHANNEL_ERROR, error,
1437 winsock_error_message (winsock_error));
1438 return G_IO_STATUS_ERROR;
1442 *bytes_read = result;
1444 return G_IO_STATUS_EOF;
1446 return G_IO_STATUS_NORMAL;
1451 g_io_win32_sock_write (GIOChannel *channel,
1454 gsize *bytes_written,
1457 GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
1459 GIOChannelError error;
1462 if (win32_channel->debug)
1463 g_print ("g_io_win32_sock_write: sockfd=%d count=%d\n",
1464 win32_channel->fd, count);
1466 result = send (win32_channel->fd, buf, count, 0);
1467 if (result == SOCKET_ERROR)
1468 winsock_error = WSAGetLastError ();
1470 if (win32_channel->debug)
1471 g_print ("g_io_win32_sock_write: send=%d %s\n",
1473 (result == SOCKET_ERROR ? winsock_error_message (winsock_error) : ""));
1475 if (result == SOCKET_ERROR)
1479 switch (winsock_error)
1482 error = G_IO_CHANNEL_ERROR_INVAL;
1484 case WSAEWOULDBLOCK:
1485 win32_channel->write_would_have_blocked = TRUE;
1486 win32_channel->last_events = 0;
1487 return G_IO_STATUS_AGAIN;
1489 error = G_IO_CHANNEL_ERROR_FAILED;
1492 g_set_error (err, G_IO_CHANNEL_ERROR, error,
1493 winsock_error_message (winsock_error));
1495 return G_IO_STATUS_ERROR;
1499 *bytes_written = result;
1500 win32_channel->write_would_have_blocked = FALSE;
1502 return G_IO_STATUS_NORMAL;
1507 g_io_win32_sock_close (GIOChannel *channel,
1510 GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
1512 if (win32_channel->fd != -1)
1514 if (win32_channel->debug)
1515 g_print ("g_io_win32_sock_close: closing socket %d\n",
1518 closesocket (win32_channel->fd);
1519 win32_channel->fd = -1;
1522 /* FIXME error detection? */
1524 return G_IO_STATUS_NORMAL;
1528 g_io_win32_sock_create_watch (GIOChannel *channel,
1529 GIOCondition condition)
1531 GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
1532 GSource *source = g_source_new (&g_io_watch_funcs, sizeof (GIOWin32Watch));
1533 GIOWin32Watch *watch = (GIOWin32Watch *)source;
1535 watch->channel = channel;
1536 g_io_channel_ref (channel);
1538 watch->condition = condition;
1540 if (win32_channel->event == 0)
1541 win32_channel->event = (int) WSACreateEvent ();
1543 watch->pollfd.fd = win32_channel->event;
1544 watch->pollfd.events = condition;
1546 if (win32_channel->debug)
1547 g_print ("g_io_win32_sock_create_watch: sock=%d handle=%#x condition={%s}\n",
1548 win32_channel->fd, watch->pollfd.fd,
1549 condition_to_string (watch->condition));
1551 g_source_add_poll (source, &watch->pollfd);
1557 g_io_channel_new_file (const gchar *filename,
1561 int fid, flags, pmode;
1562 GIOChannel *channel;
1564 enum { /* Cheesy hack */
1571 g_return_val_if_fail (filename != NULL, NULL);
1572 g_return_val_if_fail (mode != NULL, NULL);
1573 g_return_val_if_fail ((error == NULL) || (*error == NULL), NULL);
1587 g_warning ("Invalid GIOFileMode %s.\n", mode);
1596 if (mode[2] == '\0')
1598 mode_num |= MODE_PLUS;
1603 g_warning ("Invalid GIOFileMode %s.\n", mode);
1614 flags = O_WRONLY | O_TRUNC | O_CREAT;
1618 flags = O_WRONLY | O_APPEND | O_CREAT;
1621 case MODE_R | MODE_PLUS:
1623 pmode = _S_IREAD | _S_IWRITE;
1625 case MODE_W | MODE_PLUS:
1626 flags = O_RDWR | O_TRUNC | O_CREAT;
1627 pmode = _S_IREAD | _S_IWRITE;
1629 case MODE_A | MODE_PLUS:
1630 flags = O_RDWR | O_APPEND | O_CREAT;
1631 pmode = _S_IREAD | _S_IWRITE;
1634 g_assert_not_reached ();
1638 /* always open 'untranslated' */
1639 fid = g_open (filename, flags | _O_BINARY, pmode);
1641 if (g_io_win32_get_debug_flag ())
1643 g_print ("g_io_channel_win32_new_file: open(\"%s\", ", filename);
1644 g_win32_print_access_mode (flags|_O_BINARY);
1645 g_print (",%#o)=%d\n", pmode, fid);
1650 g_set_error (error, G_FILE_ERROR,
1651 g_file_error_from_errno (errno),
1652 g_strerror (errno));
1653 return (GIOChannel *)NULL;
1656 channel = g_io_channel_win32_new_fd (fid);
1658 /* XXX: move this to g_io_channel_win32_new_fd () */
1659 channel->close_on_unref = TRUE;
1660 channel->is_seekable = TRUE;
1662 /* g_io_channel_win32_new_fd sets is_readable and is_writeable to
1663 * correspond to actual readability/writeability. Set to FALSE those
1664 * that mode doesn't allow
1669 channel->is_writeable = FALSE;
1673 channel->is_readable = FALSE;
1675 case MODE_R | MODE_PLUS:
1676 case MODE_W | MODE_PLUS:
1677 case MODE_A | MODE_PLUS:
1680 g_assert_not_reached ();
1689 #undef g_io_channel_new_file
1691 /* Binary compatibility version. Not for newly compiled code. */
1694 g_io_channel_new_file (const gchar *filename,
1698 gchar *utf8_filename = g_locale_to_utf8 (filename, -1, NULL, NULL, error);
1701 if (utf8_filename == NULL)
1704 retval = g_io_channel_new_file_utf8 (utf8_filename, mode, error);
1706 g_free (utf8_filename);
1714 g_io_win32_unimpl_set_flags (GIOChannel *channel,
1718 GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
1720 if (win32_channel->debug)
1722 g_print ("g_io_win32_unimpl_set_flags: ");
1723 g_win32_print_gioflags (flags);
1727 g_set_error (err, G_IO_CHANNEL_ERROR,
1728 G_IO_CHANNEL_ERROR_FAILED,
1729 "Not implemented on Win32");
1731 return G_IO_STATUS_ERROR;
1735 g_io_win32_fd_get_flags_internal (GIOChannel *channel,
1738 GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel;
1742 if (st->st_mode & _S_IFIFO)
1744 channel->is_readable =
1745 (PeekNamedPipe ((HANDLE) _get_osfhandle (win32_channel->fd), &c, 0, &count, NULL, NULL) != 0) || GetLastError () == ERROR_BROKEN_PIPE;
1746 channel->is_writeable =
1747 (WriteFile ((HANDLE) _get_osfhandle (win32_channel->fd), &c, 0, &count, NULL) != 0);
1748 channel->is_seekable = FALSE;
1752 channel->is_readable =
1753 (ReadFile ((HANDLE) _get_osfhandle (win32_channel->fd), &c, 0, &count, NULL) != 0);
1754 channel->is_writeable =
1755 (WriteFile ((HANDLE) _get_osfhandle (win32_channel->fd), &c, 0, &count, NULL) != 0);
1756 channel->is_seekable = TRUE;
1759 /* XXX: G_IO_FLAG_APPEND */
1760 /* XXX: G_IO_FLAG_NONBLOCK */
1766 g_io_win32_fd_get_flags (GIOChannel *channel)
1769 GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
1771 g_return_val_if_fail (win32_channel != NULL, 0);
1772 g_return_val_if_fail (win32_channel->type == G_IO_WIN32_FILE_DESC, 0);
1774 if (0 == fstat (win32_channel->fd, &st))
1775 return g_io_win32_fd_get_flags_internal (channel, &st);
1781 g_io_win32_console_get_flags_internal (GIOChannel *channel)
1783 GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel;
1784 HANDLE handle = (HANDLE) _get_osfhandle (win32_channel->fd);
1787 INPUT_RECORD record;
1789 channel->is_readable = PeekConsoleInput (handle, &record, 1, &count);
1790 channel->is_writeable = WriteFile (handle, &c, 0, &count, NULL);
1791 channel->is_seekable = FALSE;
1797 g_io_win32_console_get_flags (GIOChannel *channel)
1799 GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
1801 g_return_val_if_fail (win32_channel != NULL, 0);
1802 g_return_val_if_fail (win32_channel->type == G_IO_WIN32_CONSOLE, 0);
1804 return g_io_win32_console_get_flags_internal (channel);
1808 g_io_win32_msg_get_flags (GIOChannel *channel)
1814 g_io_win32_sock_set_flags (GIOChannel *channel,
1818 GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
1821 if (win32_channel->debug)
1823 g_print ("g_io_win32_sock_set_flags: ");
1824 g_win32_print_gioflags (flags);
1828 if (flags & G_IO_FLAG_NONBLOCK)
1831 if (ioctlsocket (win32_channel->fd, FIONBIO, &arg) == SOCKET_ERROR)
1833 g_set_error (err, G_IO_CHANNEL_ERROR,
1834 G_IO_CHANNEL_ERROR_FAILED,
1835 winsock_error_message (WSAGetLastError ()));
1836 return G_IO_STATUS_ERROR;
1842 if (ioctlsocket (win32_channel->fd, FIONBIO, &arg) == SOCKET_ERROR)
1844 g_set_error (err, G_IO_CHANNEL_ERROR,
1845 G_IO_CHANNEL_ERROR_FAILED,
1846 winsock_error_message (WSAGetLastError ()));
1847 return G_IO_STATUS_ERROR;
1851 return G_IO_STATUS_NORMAL;
1855 g_io_win32_sock_get_flags (GIOChannel *channel)
1857 /* Could we do something here? */
1861 static GIOFuncs win32_channel_msg_funcs = {
1862 g_io_win32_msg_read,
1863 g_io_win32_msg_write,
1865 g_io_win32_msg_close,
1866 g_io_win32_msg_create_watch,
1868 g_io_win32_unimpl_set_flags,
1869 g_io_win32_msg_get_flags,
1872 static GIOFuncs win32_channel_fd_funcs = {
1873 g_io_win32_fd_and_console_read,
1874 g_io_win32_fd_and_console_write,
1876 g_io_win32_fd_close,
1877 g_io_win32_fd_create_watch,
1879 g_io_win32_unimpl_set_flags,
1880 g_io_win32_fd_get_flags,
1883 static GIOFuncs win32_channel_console_funcs = {
1884 g_io_win32_fd_and_console_read,
1885 g_io_win32_fd_and_console_write,
1887 g_io_win32_console_close,
1888 g_io_win32_console_create_watch,
1890 g_io_win32_unimpl_set_flags,
1891 g_io_win32_console_get_flags,
1894 static GIOFuncs win32_channel_sock_funcs = {
1895 g_io_win32_sock_read,
1896 g_io_win32_sock_write,
1898 g_io_win32_sock_close,
1899 g_io_win32_sock_create_watch,
1901 g_io_win32_sock_set_flags,
1902 g_io_win32_sock_get_flags,
1906 g_io_channel_win32_new_messages (guint hwnd)
1908 GIOWin32Channel *win32_channel = g_new (GIOWin32Channel, 1);
1909 GIOChannel *channel = (GIOChannel *)win32_channel;
1911 g_io_channel_init (channel);
1912 g_io_channel_win32_init (win32_channel);
1913 if (win32_channel->debug)
1914 g_print ("g_io_channel_win32_new_messages: hwnd=%#x\n", hwnd);
1915 channel->funcs = &win32_channel_msg_funcs;
1916 win32_channel->type = G_IO_WIN32_WINDOWS_MESSAGES;
1917 win32_channel->hwnd = (HWND) hwnd;
1919 /* XXX: check this. */
1920 channel->is_readable = IsWindow (win32_channel->hwnd);
1921 channel->is_writeable = IsWindow (win32_channel->hwnd);
1923 channel->is_seekable = FALSE;
1929 g_io_channel_win32_new_fd_internal (gint fd,
1932 GIOWin32Channel *win32_channel;
1933 GIOChannel *channel;
1935 win32_channel = g_new (GIOWin32Channel, 1);
1936 channel = (GIOChannel *)win32_channel;
1938 g_io_channel_init (channel);
1939 g_io_channel_win32_init (win32_channel);
1941 win32_channel->fd = fd;
1943 if (win32_channel->debug)
1944 g_print ("g_io_channel_win32_new_fd: %u\n", fd);
1945 if (st->st_mode & _S_IFCHR) /* console */
1947 channel->funcs = &win32_channel_console_funcs;
1948 win32_channel->type = G_IO_WIN32_CONSOLE;
1949 g_io_win32_console_get_flags_internal (channel);
1953 channel->funcs = &win32_channel_fd_funcs;
1954 win32_channel->type = G_IO_WIN32_FILE_DESC;
1955 g_io_win32_fd_get_flags_internal (channel, st);
1962 g_io_channel_win32_new_fd (gint fd)
1966 if (fstat (fd, &st) == -1)
1968 g_warning (G_STRLOC ": %d isn't a C library file descriptor", fd);
1972 return g_io_channel_win32_new_fd_internal (fd, &st);
1976 g_io_channel_win32_get_fd (GIOChannel *channel)
1978 GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
1980 return win32_channel->fd;
1984 g_io_channel_win32_new_socket (int socket)
1986 GIOWin32Channel *win32_channel = g_new (GIOWin32Channel, 1);
1987 GIOChannel *channel = (GIOChannel *)win32_channel;
1989 g_io_channel_init (channel);
1990 g_io_channel_win32_init (win32_channel);
1991 if (win32_channel->debug)
1992 g_print ("g_io_channel_win32_new_socket: sockfd=%d\n", socket);
1993 channel->funcs = &win32_channel_sock_funcs;
1994 win32_channel->type = G_IO_WIN32_SOCKET;
1995 win32_channel->fd = socket;
1997 channel->is_readable = TRUE;
1998 channel->is_writeable = TRUE;
1999 channel->is_seekable = FALSE;
2005 g_io_channel_unix_new (gint fd)
2007 gboolean is_fd, is_socket;
2011 is_fd = (fstat (fd, &st) == 0);
2013 optlen = sizeof (optval);
2014 is_socket = (getsockopt (fd, SOL_SOCKET, SO_TYPE, (char *) &optval, &optlen) != SOCKET_ERROR);
2016 if (is_fd && is_socket)
2017 g_warning (G_STRLOC ": %d is both a file descriptor and a socket, file descriptor interpretation assumed.", fd);
2020 return g_io_channel_win32_new_fd_internal (fd, &st);
2023 return g_io_channel_win32_new_socket(fd);
2025 g_warning (G_STRLOC ": %d is neither a file descriptor or a socket", fd);
2031 g_io_channel_unix_get_fd (GIOChannel *channel)
2033 return g_io_channel_win32_get_fd (channel);
2037 g_io_channel_win32_set_debug (GIOChannel *channel,
2040 GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
2042 win32_channel->debug = flag;
2046 g_io_channel_win32_poll (GPollFD *fds,
2052 g_return_val_if_fail (n_fds >= 0, 0);
2054 result = (*g_main_context_get_poll_func (NULL)) (fds, n_fds, timeout);
2060 g_io_channel_win32_make_pollfd (GIOChannel *channel,
2061 GIOCondition condition,
2064 GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
2066 switch (win32_channel->type)
2068 case G_IO_WIN32_FILE_DESC:
2069 if (win32_channel->data_avail_event == NULL)
2070 create_events (win32_channel);
2072 fd->fd = (gint) win32_channel->data_avail_event;
2074 if (win32_channel->thread_id == 0 && (condition & G_IO_IN))
2076 if (condition & G_IO_IN)
2077 create_thread (win32_channel, condition, read_thread);
2078 else if (condition & G_IO_OUT)
2079 create_thread (win32_channel, condition, write_thread);
2083 case G_IO_WIN32_CONSOLE:
2084 fd->fd = (gint) _get_osfhandle (win32_channel->fd);
2087 case G_IO_WIN32_SOCKET:
2088 fd->fd = (int) WSACreateEvent ();
2091 case G_IO_WIN32_WINDOWS_MESSAGES:
2092 fd->fd = G_WIN32_MSG_HANDLE;
2096 g_assert_not_reached ();
2100 fd->events = condition;
2103 /* Binary compatibility */
2105 g_io_channel_win32_new_stream_socket (int socket)
2107 return g_io_channel_win32_new_socket (socket);
2110 #define __G_IO_WIN32_C__
2111 #include "galiasdef.c"