| 1 | /* |
1 | /* |
| 2 | * libev epoll fd activity backend |
2 | * libev epoll fd activity backend |
| 3 | * |
3 | * |
| 4 | * Copyright (c) 2007,2008 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 modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
| 8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
| 9 | * |
9 | * |
| … | |
… | |
| 119 | epoll_poll (EV_P_ ev_tstamp timeout) |
119 | epoll_poll (EV_P_ ev_tstamp timeout) |
| 120 | { |
120 | { |
| 121 | int i; |
121 | int i; |
| 122 | int eventcnt; |
122 | int eventcnt; |
| 123 | |
123 | |
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124 | /* epoll wait times cannot be larger than (LONG_MAX - 999UL) / HZ msecs, which is below */ |
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125 | /* the default libev max wait time, however. */ |
| 124 | EV_RELEASE_CB; |
126 | EV_RELEASE_CB; |
| 125 | eventcnt = epoll_wait (backend_fd, epoll_events, epoll_eventmax, (int)ceil (timeout * 1000.)); |
127 | eventcnt = epoll_wait (backend_fd, epoll_events, epoll_eventmax, (int)ceil (timeout * 1000.)); |
| 126 | EV_ACQUIRE_CB; |
128 | EV_ACQUIRE_CB; |
| 127 | |
129 | |
| 128 | if (expect_false (eventcnt < 0)) |
130 | if (expect_false (eventcnt < 0)) |
| … | |
… | |
| 179 | } |
181 | } |
| 180 | |
182 | |
| 181 | int inline_size |
183 | int inline_size |
| 182 | epoll_init (EV_P_ int flags) |
184 | epoll_init (EV_P_ int flags) |
| 183 | { |
185 | { |
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186 | #ifdef EPOLL_CLOEXEC |
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187 | backend_fd = epoll_create1 (EPOLL_CLOEXEC); |
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188 | |
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189 | if (backend_fd <= 0) |
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190 | #endif |
| 184 | backend_fd = epoll_create (256); |
191 | backend_fd = epoll_create (256); |
| 185 | |
192 | |
| 186 | if (backend_fd < 0) |
193 | if (backend_fd < 0) |
| 187 | return 0; |
194 | return 0; |
| 188 | |
195 | |
| 189 | fcntl (backend_fd, F_SETFD, FD_CLOEXEC); |
196 | fcntl (backend_fd, F_SETFD, FD_CLOEXEC); |
