| 1 | /* |
1 | /* |
| 2 | iom.C -- generic I/O multiplexer |
2 | iom.C -- generic I/O multiplexer |
| 3 | Copyright (C) 2003, 2004 Marc Lehmann <pcg@goof.com> |
3 | Copyright (C) 2003, 2004 Marc Lehmann <gvpe@schmorp.de> |
| 4 | |
4 | |
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5 | This file is part of GVPE. |
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6 | |
| 5 | This program is free software; you can redistribute it and/or modify |
7 | GVPE is free software; you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by |
8 | it under the terms of the GNU General Public License as published by |
| 7 | the Free Software Foundation; either version 2 of the License, or |
9 | the Free Software Foundation; either version 2 of the License, or |
| 8 | (at your option) any later version. |
10 | (at your option) any later version. |
| 9 | |
11 | |
| 10 | This program is distributed in the hope that it will be useful, |
12 | This program is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | GNU General Public License for more details. |
15 | GNU General Public License for more details. |
| 14 | |
16 | |
| 15 | You should have received a copy of the GNU General Public License |
17 | You should have received a copy of the GNU General Public License |
| 16 | along with this program; if not, write to the Free Software |
18 | along with gvpe; if not, write to the Free Software |
| 17 | Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
19 | Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | */ |
20 | */ |
| 19 | |
21 | |
| 20 | #include "iom.h" |
22 | #include "iom.h" |
| 21 | |
23 | |
| … | |
… | |
| 33 | # include <time.h> |
35 | # include <time.h> |
| 34 | #endif |
36 | #endif |
| 35 | |
37 | |
| 36 | // for IOM_SIG |
38 | // for IOM_SIG |
| 37 | #if IOM_SIG |
39 | #if IOM_SIG |
| 38 | # include <signal.h> |
40 | # include <csignal> |
| 39 | # include <fcntl.h> |
41 | # include <fcntl.h> |
| 40 | #endif |
42 | #endif |
| 41 | |
43 | |
| 42 | // if the BSDs would at least be marginally POSIX-compatible.. *sigh* |
44 | // if the BSDs would at least be marginally POSIX-compatible.. *sigh* |
| 43 | // until that happens, sys/select.h must come last |
45 | // until that happens, sys/select.h must come last |
| 44 | #include <sys/select.h> |
46 | #include <sys/select.h> |
| 45 | |
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| 46 | // TSTAMP_MAX must still fit into a positive struct timeval |
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| 47 | #define TSTAMP_MAX (double)(1UL<<31) |
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| 48 | |
47 | |
| 49 | #define TIMEVAL timeval |
48 | #define TIMEVAL timeval |
| 50 | #define TV_FRAC tv_usec |
49 | #define TV_FRAC tv_usec |
| 51 | #define TV_MULT 1000000L |
50 | #define TV_MULT 1000000L |
| 52 | |
51 | |
| … | |
… | |
| 380 | # if IOM_SIG |
379 | # if IOM_SIG |
| 381 | sigprocmask (SIG_BLOCK, &sigs, NULL); |
380 | sigprocmask (SIG_BLOCK, &sigs, NULL); |
| 382 | # endif |
381 | # endif |
| 383 | |
382 | |
| 384 | # if IOM_TIME |
383 | # if IOM_TIME |
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384 | { |
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385 | // update time, try to compensate for gross non-monotonic time changes |
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386 | tstamp diff = NOW; |
| 385 | set_now (); |
387 | set_now (); |
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388 | diff = NOW - diff; |
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389 | |
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390 | if (diff < 0) |
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391 | for (io_manager_vec<time_watcher>::const_iterator i = tw.end (); i-- > tw.begin (); ) |
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392 | if (*i) |
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393 | (*i)->at += diff; |
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394 | } |
| 386 | # endif |
395 | # endif |
| 387 | |
396 | |
| 388 | if (fds > 0) |
397 | if (fds > 0) |
| 389 | { |
398 | { |
| 390 | # if IOM_SIG |
399 | # if IOM_SIG |
