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 (16 years, 4 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 *
#	Content
1	/*
2	* libev win32 compatibility cruft (_not_ a backend)
3	*
4	* Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de>
5	* All rights reserved.
6	*
7	* 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	*
28	* 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	*/
39
40	#ifdef _WIN32
41
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	#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	filedes [0] = sock [0];
91	filedes [1] = sock [1];
92	#endif
93
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	#define gettimeofday(tv,tz) ev_gettimeofday (tv, tz)
123
124	#endif
125