1 | /* |
1 | /* |
2 | * libev win32 compatibility cruft |
2 | * libev win32 compatibility cruft (_not_ a backend) |
3 | * |
3 | * |
4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * modification, are permitted provided that the following conditions are |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * met: |
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10 | * |
9 | * |
11 | * * Redistributions of source code must retain the above copyright |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
12 | * notice, this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
13 | * |
12 | * |
14 | * * Redistributions in binary form must reproduce the above |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
15 | * copyright notice, this list of conditions and the following |
14 | * notice, this list of conditions and the following disclaimer in the |
16 | * disclaimer in the documentation and/or other materials provided |
15 | * documentation and/or other materials provided with the distribution. |
17 | * with the distribution. |
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18 | * |
16 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
20 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
22 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
23 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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24 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
25 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
25 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | * |
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28 | * Alternatively, the contents of this file may be used under the terms of |
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29 | * the GNU General Public License ("GPL") version 2 or any later version, |
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30 | * in which case the provisions of the GPL are applicable instead of |
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31 | * the above. If you wish to allow the use of your version of this file |
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32 | * only under the terms of the GPL and not to allow others to use your |
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33 | * version of this file under the BSD license, indicate your decision |
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34 | * by deleting the provisions above and replace them with the notice |
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35 | * and other provisions required by the GPL. If you do not delete the |
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36 | * provisions above, a recipient may use your version of this file under |
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37 | * either the BSD or the GPL. |
30 | */ |
38 | */ |
31 | |
39 | |
32 | #ifdef WIN32 |
40 | #ifdef _WIN32 |
33 | |
41 | |
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42 | /* timeb.h is actually xsi legacy functionality */ |
34 | #include <sys/timeb.h> |
43 | #include <sys/timeb.h> |
35 | |
44 | |
36 | /* note: the comment below could not be substantiated, but what would I care */ |
45 | /* note: the comment below could not be substantiated, but what would I care */ |
37 | /* MSDN says this is required to handle SIGFPE */ |
46 | /* MSDN says this is required to handle SIGFPE */ |
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47 | /* my wild guess would be that using something floating-pointy is required */ |
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48 | /* for the crt to do something about it */ |
38 | volatile double SIGFPE_REQ = 0.0f; |
49 | volatile double SIGFPE_REQ = 0.0f; |
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50 | |
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51 | static SOCKET |
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52 | ev_tcp_socket (void) |
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53 | { |
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54 | #if EV_USE_WSASOCKET |
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55 | return WSASocket (AF_INET, SOCK_STREAM, 0, 0, 0, 0); |
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56 | #else |
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57 | return socket (AF_INET, SOCK_STREAM, 0); |
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58 | #endif |
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59 | } |
39 | |
60 | |
40 | /* oh, the humanity! */ |
61 | /* oh, the humanity! */ |
41 | static int |
62 | static int |
42 | ev_pipe (int filedes [2]) |
63 | ev_pipe (int filedes [2]) |
43 | { |
64 | { |
44 | struct sockaddr_in addr = { 0 }; |
65 | struct sockaddr_in addr = { 0 }; |
45 | int addr_size = sizeof (addr); |
66 | int addr_size = sizeof (addr); |
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67 | struct sockaddr_in adr2; |
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68 | int adr2_size = sizeof (adr2); |
46 | SOCKET listener; |
69 | SOCKET listener; |
47 | SOCKET sock [2] = { -1, -1 }; |
70 | SOCKET sock [2] = { -1, -1 }; |
48 | |
71 | |
49 | if ((listener = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET) |
72 | if ((listener = ev_tcp_socket ()) == INVALID_SOCKET) |
50 | return -1; |
73 | return -1; |
51 | |
74 | |
52 | addr.sin_family = AF_INET; |
75 | addr.sin_family = AF_INET; |
53 | addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK); |
76 | addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK); |
54 | addr.sin_port = 0; |
77 | addr.sin_port = 0; |
55 | |
78 | |
56 | if (bind (listener, (struct sockaddr *)&addr, addr_size)) |
79 | if (bind (listener, (struct sockaddr *)&addr, addr_size)) |
57 | goto fail; |
80 | goto fail; |
58 | |
81 | |
59 | if (getsockname(listener, (struct sockaddr *)&addr, &addr_size)) |
82 | if (getsockname (listener, (struct sockaddr *)&addr, &addr_size)) |
60 | goto fail; |
83 | goto fail; |
61 | |
84 | |
62 | if (listen (listener, 1)) |
85 | if (listen (listener, 1)) |
63 | goto fail; |
86 | goto fail; |
64 | |
87 | |
65 | if ((sock [0] = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET) |
88 | if ((sock [0] = ev_tcp_socket ()) == INVALID_SOCKET) |
66 | goto fail; |
89 | goto fail; |
67 | |
90 | |
68 | if (connect (sock[0], (struct sockaddr *)&addr, addr_size)) |
91 | if (connect (sock [0], (struct sockaddr *)&addr, addr_size)) |
69 | goto fail; |
92 | goto fail; |
70 | |
93 | |
71 | if ((sock[1] = accept (listener, 0, 0)) < 0) |
94 | if ((sock [1] = accept (listener, 0, 0)) < 0) |
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95 | goto fail; |
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96 | |
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97 | /* windows vista returns fantasy port numbers for sockets: |
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98 | * example for two interconnected tcp sockets: |
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99 | * |
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100 | * (Socket::unpack_sockaddr_in getsockname $sock0)[0] == 53364 |
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101 | * (Socket::unpack_sockaddr_in getpeername $sock0)[0] == 53363 |
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102 | * (Socket::unpack_sockaddr_in getsockname $sock1)[0] == 53363 |
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103 | * (Socket::unpack_sockaddr_in getpeername $sock1)[0] == 53365 |
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104 | * |
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105 | * wow! tridirectional sockets! |
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106 | * |
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107 | * this way of checking ports seems to work: |
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108 | */ |
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109 | if (getpeername (sock [0], (struct sockaddr *)&addr, &addr_size)) |
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110 | goto fail; |
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111 | |
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112 | if (getsockname (sock [1], (struct sockaddr *)&adr2, &adr2_size)) |
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113 | goto fail; |
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114 | |
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115 | errno = WSAEINVAL; |
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116 | if (addr_size != adr2_size |
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117 | || addr.sin_addr.s_addr != adr2.sin_addr.s_addr /* just to be sure, I mean, it's windows */ |
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118 | || addr.sin_port != adr2.sin_port) |
72 | goto fail; |
119 | goto fail; |
73 | |
120 | |
74 | closesocket (listener); |
121 | closesocket (listener); |
75 | |
122 | |
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123 | #if EV_SELECT_IS_WINSOCKET |
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124 | filedes [0] = EV_WIN32_HANDLE_TO_FD (sock [0]); |
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125 | filedes [1] = EV_WIN32_HANDLE_TO_FD (sock [1]); |
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126 | #else |
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127 | /* when select isn't winsocket, we also expect socket, connect, accept etc. |
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128 | * to work on fds */ |
76 | filedes [0] = sock [0]; |
129 | filedes [0] = sock [0]; |
77 | filedes [1] = sock [1]; |
130 | filedes [1] = sock [1]; |
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131 | #endif |
78 | |
132 | |
79 | return 0; |
133 | return 0; |
80 | |
134 | |
81 | fail: |
135 | fail: |
82 | closesocket (listener); |
136 | closesocket (listener); |
… | |
… | |
88 | } |
142 | } |
89 | |
143 | |
90 | #undef pipe |
144 | #undef pipe |
91 | #define pipe(filedes) ev_pipe (filedes) |
145 | #define pipe(filedes) ev_pipe (filedes) |
92 | |
146 | |
93 | static int |
147 | #define EV_HAVE_EV_TIME 1 |
94 | ev_gettimeofday (struct timeval *tv, struct timezone *tz) |
148 | ev_tstamp |
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149 | ev_time (void) |
95 | { |
150 | { |
96 | struct _timeb tb; |
151 | FILETIME ft; |
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152 | ULARGE_INTEGER ui; |
97 | |
153 | |
98 | _ftime (&tb); |
154 | GetSystemTimeAsFileTime (&ft); |
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155 | ui.u.LowPart = ft.dwLowDateTime; |
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156 | ui.u.HighPart = ft.dwHighDateTime; |
99 | |
157 | |
100 | tv->tv_sec = (long)tb.time; |
158 | /* msvc cannot convert ulonglong to double... yes, it is that sucky */ |
101 | tv->tv_usec = ((long)tb.millitm) * 1000; |
159 | return (LONGLONG)(ui.QuadPart - 116444736000000000) * 1e-7; |
102 | |
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103 | return 0; |
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104 | } |
160 | } |
105 | |
161 | |
106 | #undef gettimeofday |
162 | #endif |
107 | #define gettimeofdy(tv,tz) ev_gettimeofday (tv, tz) |
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108 | |
163 | |
109 | #endif |
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