Mirror of :pserver:anonymous@cvs.schmorp.de/schmorpforge libev http://software.schmorp.de/pkg/libev.html
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  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. #ifdef _WIN32
  40. #include <sys/timeb.h>
  41. /* note: the comment below could not be substantiated, but what would I care */
  42. /* MSDN says this is required to handle SIGFPE */
  43. volatile double SIGFPE_REQ = 0.0f;
  44. /* oh, the humanity! */
  45. static int
  46. ev_pipe (int filedes [2])
  47. {
  48. struct sockaddr_in addr = { 0 };
  49. int addr_size = sizeof (addr);
  50. SOCKET listener;
  51. SOCKET sock [2] = { -1, -1 };
  52. if ((listener = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
  53. return -1;
  54. addr.sin_family = AF_INET;
  55. addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
  56. addr.sin_port = 0;
  57. if (bind (listener, (struct sockaddr *)&addr, addr_size))
  58. goto fail;
  59. if (getsockname(listener, (struct sockaddr *)&addr, &addr_size))
  60. goto fail;
  61. if (listen (listener, 1))
  62. goto fail;
  63. if ((sock [0] = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
  64. goto fail;
  65. if (connect (sock[0], (struct sockaddr *)&addr, addr_size))
  66. goto fail;
  67. if ((sock[1] = accept (listener, 0, 0)) < 0)
  68. goto fail;
  69. closesocket (listener);
  70. #if EV_SELECT_IS_WINSOCKET
  71. filedes [0] = _open_osfhandle (sock [0], 0);
  72. filedes [1] = _open_osfhandle (sock [1], 0);
  73. #else
  74. /* when select isn't winsocket, we also expect socket, connect, accept etc.
  75. * to work on fds */
  76. filedes [0] = sock [0];
  77. filedes [1] = sock [1];
  78. #endif
  79. return 0;
  80. fail:
  81. closesocket (listener);
  82. if (sock [0] != INVALID_SOCKET) closesocket (sock [0]);
  83. if (sock [1] != INVALID_SOCKET) closesocket (sock [1]);
  84. return -1;
  85. }
  86. #undef pipe
  87. #define pipe(filedes) ev_pipe (filedes)
  88. static int
  89. ev_gettimeofday (struct timeval *tv, struct timezone *tz)
  90. {
  91. struct _timeb tb;
  92. _ftime (&tb);
  93. tv->tv_sec = (long)tb.time;
  94. tv->tv_usec = ((long)tb.millitm) * 1000;
  95. return 0;
  96. }
  97. #undef gettimeofday
  98. #define gettimeofday(tv,tz) ev_gettimeofday (tv, tz)
  99. #endif