1 | /* |
1 | /* |
2 | * libev poll fd activity backend |
2 | * libev poll fd activity backend |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011 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 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
90 | { |
90 | { |
91 | struct pollfd *p; |
91 | struct pollfd *p; |
92 | int res; |
92 | int res; |
93 | |
93 | |
94 | EV_RELEASE_CB; |
94 | EV_RELEASE_CB; |
95 | res = poll (polls, pollcnt, (int)ceil (timeout * 1000.)); |
95 | res = poll (polls, pollcnt, ev_timeout_to_ms (timeout)); |
96 | EV_ACQUIRE_CB; |
96 | EV_ACQUIRE_CB; |
97 | |
97 | |
98 | if (expect_false (res < 0)) |
98 | if (expect_false (res < 0)) |
99 | { |
99 | { |
100 | if (errno == EBADF) |
100 | if (errno == EBADF) |
… | |
… | |
127 | } |
127 | } |
128 | |
128 | |
129 | int inline_size |
129 | int inline_size |
130 | poll_init (EV_P_ int flags) |
130 | poll_init (EV_P_ int flags) |
131 | { |
131 | { |
132 | backend_fudge = 0.; /* posix says this is zero */ |
132 | backend_fudge = 1e-3; |
133 | backend_modify = poll_modify; |
133 | backend_modify = poll_modify; |
134 | backend_poll = poll_poll; |
134 | backend_poll = poll_poll; |
135 | |
135 | |
136 | pollidxs = 0; pollidxmax = 0; |
136 | pollidxs = 0; pollidxmax = 0; |
137 | polls = 0; pollmax = 0; pollcnt = 0; |
137 | polls = 0; pollmax = 0; pollcnt = 0; |