libev/ev_win32.c

/*
 * libev win32 compatibility cruft (_not_ a backend)
 *
 * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modifica-
 * tion, are permitted provided that the following conditions are met:
 * 
 *   1.  Redistributions of source code must retain the above copyright notice,
 *       this list of conditions and the following disclaimer.
 * 
 *   2.  Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Alternatively, the contents of this file may be used under the terms of
 * the GNU General Public License ("GPL") version 2 or any later version,
 * in which case the provisions of the GPL are applicable instead of
 * the above. If you wish to allow the use of your version of this file
 * only under the terms of the GPL and not to allow others to use your
 * version of this file under the BSD license, indicate your decision
 * by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL. If you do not delete the
 * provisions above, a recipient may use your version of this file under
 * either the BSD or the GPL.
 */

#ifdef _WIN32

#include <sys/timeb.h>

/* note: the comment below could not be substantiated, but what would I care */
/* MSDN says this is required to handle SIGFPE */
volatile double SIGFPE_REQ = 0.0f; 

/* oh, the humanity! */
static int
ev_pipe (int filedes [2])
{
  struct sockaddr_in addr = { 0 };
  int addr_size = sizeof (addr);
  SOCKET listener;
  SOCKET sock [2] = { -1, -1 };

  if ((listener = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET) 
    return -1;

  addr.sin_family = AF_INET;
  addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
  addr.sin_port = 0;

  if (bind (listener, (struct sockaddr *)&addr, addr_size))
    goto fail;

  if (getsockname(listener, (struct sockaddr *)&addr, &addr_size))
    goto fail;

  if (listen (listener, 1))
    goto fail;

  if ((sock [0] = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET) 
    goto fail;

  if (connect (sock[0], (struct sockaddr *)&addr, addr_size))
    goto fail;

  if ((sock[1] = accept (listener, 0, 0)) < 0)
    goto fail;

  closesocket (listener);

#if EV_SELECT_IS_WINSOCKET
  filedes [0] = _open_osfhandle (sock [0], 0);
  filedes [1] = _open_osfhandle (sock [1], 0);
#else
  /* when select isn't winsocket, we also expect socket, connect, accept etc.
   * to work on fds */
  filedes [0] = sock [0];
  filedes [1] = sock [1];
#endif

  return 0;

fail:
  closesocket (listener);

  if (sock [0] != INVALID_SOCKET) closesocket (sock [0]);
  if (sock [1] != INVALID_SOCKET) closesocket (sock [1]);

  return -1;
}

#undef pipe
#define pipe(filedes) ev_pipe (filedes)

static int
ev_gettimeofday (struct timeval *tv, struct timezone *tz)
{
  struct _timeb tb;

  _ftime (&tb);

  tv->tv_sec  = (long)tb.time;
  tv->tv_usec = ((long)tb.millitm) * 1000;

  return 0;
}

#undef gettimeofday
#define gettimeofday(tv,tz) ev_gettimeofday (tv, tz)

#endif

Revision:	1.5
Committed:	Fri May 23 16:37:38 2008 UTC (15 years, 11 months ago) by root
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-3_41, rel-3_42
Changes since 1.4:	+1 -1 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	/*
2	root	1.4	* libev win32 compatibility cruft (_not_ a backend)
3	root	1.1	*
4	root	1.5	* Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de>
5	root	1.1	* All rights reserved.
6			*
7	root	1.4	* Redistribution and use in source and binary forms, with or without modifica-
8			* tion, are permitted provided that the following conditions are met:
9			*
10			* 1. Redistributions of source code must retain the above copyright notice,
11			* this list of conditions and the following disclaimer.
12			*
13			* 2. Redistributions in binary form must reproduce the above copyright
14			* notice, this list of conditions and the following disclaimer in the
15			* documentation and/or other materials provided with the distribution.
16			*
17			* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18			* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19			* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20			* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21			* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22			* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
23			* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24			* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
25			* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
26			* OF THE POSSIBILITY OF SUCH DAMAGE.
27	root	1.1	*
28	root	1.4	* Alternatively, the contents of this file may be used under the terms of
29			* the GNU General Public License ("GPL") version 2 or any later version,
30			* in which case the provisions of the GPL are applicable instead of
31			* the above. If you wish to allow the use of your version of this file
32			* only under the terms of the GPL and not to allow others to use your
33			* version of this file under the BSD license, indicate your decision
34			* by deleting the provisions above and replace them with the notice
35			* and other provisions required by the GPL. If you do not delete the
36			* provisions above, a recipient may use your version of this file under
37			* either the BSD or the GPL.
38	root	1.1	*/
39
40	root	1.2	#ifdef _WIN32
41	root	1.1
42			#include <sys/timeb.h>
43
44			/* note: the comment below could not be substantiated, but what would I care */
45			/* MSDN says this is required to handle SIGFPE */
46			volatile double SIGFPE_REQ = 0.0f;
47
48			/* oh, the humanity! */
49			static int
50			ev_pipe (int filedes [2])
51			{
52			struct sockaddr_in addr = { 0 };
53			int addr_size = sizeof (addr);
54			SOCKET listener;
55			SOCKET sock [2] = { -1, -1 };
56
57			if ((listener = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
58			return -1;
59
60			addr.sin_family = AF_INET;
61			addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
62			addr.sin_port = 0;
63
64			if (bind (listener, (struct sockaddr *)&addr, addr_size))
65			goto fail;
66
67			if (getsockname(listener, (struct sockaddr *)&addr, &addr_size))
68			goto fail;
69
70			if (listen (listener, 1))
71			goto fail;
72
73			if ((sock [0] = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
74			goto fail;
75
76			if (connect (sock[0], (struct sockaddr *)&addr, addr_size))
77			goto fail;
78
79			if ((sock[1] = accept (listener, 0, 0)) < 0)
80			goto fail;
81
82			closesocket (listener);
83
84	root	1.3	#if EV_SELECT_IS_WINSOCKET
85			filedes [0] = _open_osfhandle (sock [0], 0);
86			filedes [1] = _open_osfhandle (sock [1], 0);
87			#else
88			/* when select isn't winsocket, we also expect socket, connect, accept etc.
89			* to work on fds */
90	root	1.1	filedes [0] = sock [0];
91			filedes [1] = sock [1];
92	root	1.3	#endif
93	root	1.1
94			return 0;
95
96			fail:
97			closesocket (listener);
98
99			if (sock [0] != INVALID_SOCKET) closesocket (sock [0]);
100			if (sock [1] != INVALID_SOCKET) closesocket (sock [1]);
101
102			return -1;
103			}
104
105			#undef pipe
106			#define pipe(filedes) ev_pipe (filedes)
107
108			static int
109			ev_gettimeofday (struct timeval tv, struct timezone tz)
110			{
111			struct _timeb tb;
112
113			_ftime (&tb);
114
115			tv->tv_sec = (long)tb.time;
116			tv->tv_usec = ((long)tb.millitm) * 1000;
117
118			return 0;
119			}
120
121			#undef gettimeofday
122	root	1.2	#define gettimeofday(tv,tz) ev_gettimeofday (tv, tz)
123	root	1.1
124			#endif
125	root	1.2