… | |
… | |
126 | . ds Ae AE |
126 | . ds Ae AE |
127 | .\} |
127 | .\} |
128 | .rm #[ #] #H #V #F C |
128 | .rm #[ #] #H #V #F C |
129 | .\" ======================================================================== |
129 | .\" ======================================================================== |
130 | .\" |
130 | .\" |
131 | .IX Title ""<STANDARD INPUT>" 1" |
131 | .IX Title "EV 1" |
132 | .TH "<STANDARD INPUT>" 1 "2007-12-12" "perl v5.8.8" "User Contributed Perl Documentation" |
132 | .TH EV 1 "2007-12-18" "perl v5.8.8" "User Contributed Perl Documentation" |
133 | .SH "NAME" |
133 | .SH "NAME" |
134 | libev \- a high performance full\-featured event loop written in C |
134 | libev \- a high performance full\-featured event loop written in C |
135 | .SH "SYNOPSIS" |
135 | .SH "SYNOPSIS" |
136 | .IX Header "SYNOPSIS" |
136 | .IX Header "SYNOPSIS" |
137 | .Vb 1 |
137 | .Vb 1 |
… | |
… | |
243 | Libev represents time as a single floating point number, representing the |
243 | Libev represents time as a single floating point number, representing the |
244 | (fractional) number of seconds since the (\s-1POSIX\s0) epoch (somewhere near |
244 | (fractional) number of seconds since the (\s-1POSIX\s0) epoch (somewhere near |
245 | the beginning of 1970, details are complicated, don't ask). This type is |
245 | the beginning of 1970, details are complicated, don't ask). This type is |
246 | called \f(CW\*(C`ev_tstamp\*(C'\fR, which is what you should use too. It usually aliases |
246 | called \f(CW\*(C`ev_tstamp\*(C'\fR, which is what you should use too. It usually aliases |
247 | to the \f(CW\*(C`double\*(C'\fR type in C, and when you need to do any calculations on |
247 | to the \f(CW\*(C`double\*(C'\fR type in C, and when you need to do any calculations on |
248 | it, you should treat it as such. |
248 | it, you should treat it as some floatingpoint value. Unlike the name |
|
|
249 | component \f(CW\*(C`stamp\*(C'\fR might indicate, it is also used for time differences |
|
|
250 | throughout libev. |
249 | .SH "GLOBAL FUNCTIONS" |
251 | .SH "GLOBAL FUNCTIONS" |
250 | .IX Header "GLOBAL FUNCTIONS" |
252 | .IX Header "GLOBAL FUNCTIONS" |
251 | These functions can be called anytime, even before initialising the |
253 | These functions can be called anytime, even before initialising the |
252 | library in any way. |
254 | library in any way. |
253 | .IP "ev_tstamp ev_time ()" 4 |
255 | .IP "ev_tstamp ev_time ()" 4 |
… | |
… | |
555 | Destroys the default loop again (frees all memory and kernel state |
557 | Destroys the default loop again (frees all memory and kernel state |
556 | etc.). None of the active event watchers will be stopped in the normal |
558 | etc.). None of the active event watchers will be stopped in the normal |
557 | sense, so e.g. \f(CW\*(C`ev_is_active\*(C'\fR might still return true. It is your |
559 | sense, so e.g. \f(CW\*(C`ev_is_active\*(C'\fR might still return true. It is your |
558 | responsibility to either stop all watchers cleanly yoursef \fIbefore\fR |
560 | responsibility to either stop all watchers cleanly yoursef \fIbefore\fR |
559 | calling this function, or cope with the fact afterwards (which is usually |
561 | calling this function, or cope with the fact afterwards (which is usually |
560 | the easiest thing, youc na just ignore the watchers and/or \f(CW\*(C`free ()\*(C'\fR them |
562 | the easiest thing, you can just ignore the watchers and/or \f(CW\*(C`free ()\*(C'\fR them |
561 | for example). |
563 | for example). |
|
|
564 | .Sp |
|
|
565 | Not that certain global state, such as signal state, will not be freed by |
|
|
566 | this function, and related watchers (such as signal and child watchers) |
|
|
567 | would need to be stopped manually. |
|
|
568 | .Sp |
|
|
569 | In general it is not advisable to call this function except in the |
|
|
570 | rare occasion where you really need to free e.g. the signal handling |
|
|
571 | pipe fds. If you need dynamically allocated loops it is better to use |
|
|
572 | \&\f(CW\*(C`ev_loop_new\*(C'\fR and \f(CW\*(C`ev_loop_destroy\*(C'\fR). |
562 | .IP "ev_loop_destroy (loop)" 4 |
573 | .IP "ev_loop_destroy (loop)" 4 |
563 | .IX Item "ev_loop_destroy (loop)" |
574 | .IX Item "ev_loop_destroy (loop)" |
564 | Like \f(CW\*(C`ev_default_destroy\*(C'\fR, but destroys an event loop created by an |
575 | Like \f(CW\*(C`ev_default_destroy\*(C'\fR, but destroys an event loop created by an |
565 | earlier call to \f(CW\*(C`ev_loop_new\*(C'\fR. |
576 | earlier call to \f(CW\*(C`ev_loop_new\*(C'\fR. |
566 | .IP "ev_default_fork ()" 4 |
577 | .IP "ev_default_fork ()" 4 |
… | |
… | |
1087 | descriptor even if the file descriptor number itself did not change. |
1098 | descriptor even if the file descriptor number itself did not change. |
1088 | .PP |
1099 | .PP |
1089 | This is how one would do it normally anyway, the important point is that |
1100 | This is how one would do it normally anyway, the important point is that |
1090 | the libev application should not optimise around libev but should leave |
1101 | the libev application should not optimise around libev but should leave |
1091 | optimisations to libev. |
1102 | optimisations to libev. |
|
|
1103 | .PP |
|
|
1104 | \fIWatcher-Specific Functions\fR |
|
|
1105 | .IX Subsection "Watcher-Specific Functions" |
1092 | .IP "ev_io_init (ev_io *, callback, int fd, int events)" 4 |
1106 | .IP "ev_io_init (ev_io *, callback, int fd, int events)" 4 |
1093 | .IX Item "ev_io_init (ev_io *, callback, int fd, int events)" |
1107 | .IX Item "ev_io_init (ev_io *, callback, int fd, int events)" |
1094 | .PD 0 |
1108 | .PD 0 |
1095 | .IP "ev_io_set (ev_io *, int fd, int events)" 4 |
1109 | .IP "ev_io_set (ev_io *, int fd, int events)" 4 |
1096 | .IX Item "ev_io_set (ev_io *, int fd, int events)" |
1110 | .IX Item "ev_io_set (ev_io *, int fd, int events)" |
… | |
… | |
1149 | .Ve |
1163 | .Ve |
1150 | .PP |
1164 | .PP |
1151 | The callback is guarenteed to be invoked only when its timeout has passed, |
1165 | The callback is guarenteed to be invoked only when its timeout has passed, |
1152 | but if multiple timers become ready during the same loop iteration then |
1166 | but if multiple timers become ready during the same loop iteration then |
1153 | order of execution is undefined. |
1167 | order of execution is undefined. |
|
|
1168 | .PP |
|
|
1169 | \fIWatcher-Specific Functions and Data Members\fR |
|
|
1170 | .IX Subsection "Watcher-Specific Functions and Data Members" |
1154 | .IP "ev_timer_init (ev_timer *, callback, ev_tstamp after, ev_tstamp repeat)" 4 |
1171 | .IP "ev_timer_init (ev_timer *, callback, ev_tstamp after, ev_tstamp repeat)" 4 |
1155 | .IX Item "ev_timer_init (ev_timer *, callback, ev_tstamp after, ev_tstamp repeat)" |
1172 | .IX Item "ev_timer_init (ev_timer *, callback, ev_tstamp after, ev_tstamp repeat)" |
1156 | .PD 0 |
1173 | .PD 0 |
1157 | .IP "ev_timer_set (ev_timer *, ev_tstamp after, ev_tstamp repeat)" 4 |
1174 | .IP "ev_timer_set (ev_timer *, ev_tstamp after, ev_tstamp repeat)" 4 |
1158 | .IX Item "ev_timer_set (ev_timer *, ev_tstamp after, ev_tstamp repeat)" |
1175 | .IX Item "ev_timer_set (ev_timer *, ev_tstamp after, ev_tstamp repeat)" |
… | |
… | |
1269 | rules. |
1286 | rules. |
1270 | .PP |
1287 | .PP |
1271 | As with timers, the callback is guarenteed to be invoked only when the |
1288 | As with timers, the callback is guarenteed to be invoked only when the |
1272 | time (\f(CW\*(C`at\*(C'\fR) has been passed, but if multiple periodic timers become ready |
1289 | time (\f(CW\*(C`at\*(C'\fR) has been passed, but if multiple periodic timers become ready |
1273 | during the same loop iteration then order of execution is undefined. |
1290 | during the same loop iteration then order of execution is undefined. |
|
|
1291 | .PP |
|
|
1292 | \fIWatcher-Specific Functions and Data Members\fR |
|
|
1293 | .IX Subsection "Watcher-Specific Functions and Data Members" |
1274 | .IP "ev_periodic_init (ev_periodic *, callback, ev_tstamp at, ev_tstamp interval, reschedule_cb)" 4 |
1294 | .IP "ev_periodic_init (ev_periodic *, callback, ev_tstamp at, ev_tstamp interval, reschedule_cb)" 4 |
1275 | .IX Item "ev_periodic_init (ev_periodic *, callback, ev_tstamp at, ev_tstamp interval, reschedule_cb)" |
1295 | .IX Item "ev_periodic_init (ev_periodic *, callback, ev_tstamp at, ev_tstamp interval, reschedule_cb)" |
1276 | .PD 0 |
1296 | .PD 0 |
1277 | .IP "ev_periodic_set (ev_periodic *, ev_tstamp after, ev_tstamp repeat, reschedule_cb)" 4 |
1297 | .IP "ev_periodic_set (ev_periodic *, ev_tstamp after, ev_tstamp repeat, reschedule_cb)" 4 |
1278 | .IX Item "ev_periodic_set (ev_periodic *, ev_tstamp after, ev_tstamp repeat, reschedule_cb)" |
1298 | .IX Item "ev_periodic_set (ev_periodic *, ev_tstamp after, ev_tstamp repeat, reschedule_cb)" |
… | |
… | |
1370 | .IP "ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now) [read\-write]" 4 |
1390 | .IP "ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now) [read\-write]" 4 |
1371 | .IX Item "ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now) [read-write]" |
1391 | .IX Item "ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now) [read-write]" |
1372 | The current reschedule callback, or \f(CW0\fR, if this functionality is |
1392 | The current reschedule callback, or \f(CW0\fR, if this functionality is |
1373 | switched off. Can be changed any time, but changes only take effect when |
1393 | switched off. Can be changed any time, but changes only take effect when |
1374 | the periodic timer fires or \f(CW\*(C`ev_periodic_again\*(C'\fR is being called. |
1394 | the periodic timer fires or \f(CW\*(C`ev_periodic_again\*(C'\fR is being called. |
|
|
1395 | .IP "ev_tstamp at [read\-only]" 4 |
|
|
1396 | .IX Item "ev_tstamp at [read-only]" |
|
|
1397 | When active, contains the absolute time that the watcher is supposed to |
|
|
1398 | trigger next. |
1375 | .PP |
1399 | .PP |
1376 | Example: Call a callback every hour, or, more precisely, whenever the |
1400 | Example: Call a callback every hour, or, more precisely, whenever the |
1377 | system clock is divisible by 3600. The callback invocation times have |
1401 | system clock is divisible by 3600. The callback invocation times have |
1378 | potentially a lot of jittering, but good long-term stability. |
1402 | potentially a lot of jittering, but good long-term stability. |
1379 | .PP |
1403 | .PP |
… | |
… | |
1429 | first watcher gets started will libev actually register a signal watcher |
1453 | first watcher gets started will libev actually register a signal watcher |
1430 | with the kernel (thus it coexists with your own signal handlers as long |
1454 | with the kernel (thus it coexists with your own signal handlers as long |
1431 | as you don't register any with libev). Similarly, when the last signal |
1455 | as you don't register any with libev). Similarly, when the last signal |
1432 | watcher for a signal is stopped libev will reset the signal handler to |
1456 | watcher for a signal is stopped libev will reset the signal handler to |
1433 | \&\s-1SIG_DFL\s0 (regardless of what it was set to before). |
1457 | \&\s-1SIG_DFL\s0 (regardless of what it was set to before). |
|
|
1458 | .PP |
|
|
1459 | \fIWatcher-Specific Functions and Data Members\fR |
|
|
1460 | .IX Subsection "Watcher-Specific Functions and Data Members" |
1434 | .IP "ev_signal_init (ev_signal *, callback, int signum)" 4 |
1461 | .IP "ev_signal_init (ev_signal *, callback, int signum)" 4 |
1435 | .IX Item "ev_signal_init (ev_signal *, callback, int signum)" |
1462 | .IX Item "ev_signal_init (ev_signal *, callback, int signum)" |
1436 | .PD 0 |
1463 | .PD 0 |
1437 | .IP "ev_signal_set (ev_signal *, int signum)" 4 |
1464 | .IP "ev_signal_set (ev_signal *, int signum)" 4 |
1438 | .IX Item "ev_signal_set (ev_signal *, int signum)" |
1465 | .IX Item "ev_signal_set (ev_signal *, int signum)" |
… | |
… | |
1445 | .ie n .Sh """ev_child"" \- watch out for process status changes" |
1472 | .ie n .Sh """ev_child"" \- watch out for process status changes" |
1446 | .el .Sh "\f(CWev_child\fP \- watch out for process status changes" |
1473 | .el .Sh "\f(CWev_child\fP \- watch out for process status changes" |
1447 | .IX Subsection "ev_child - watch out for process status changes" |
1474 | .IX Subsection "ev_child - watch out for process status changes" |
1448 | Child watchers trigger when your process receives a \s-1SIGCHLD\s0 in response to |
1475 | Child watchers trigger when your process receives a \s-1SIGCHLD\s0 in response to |
1449 | some child status changes (most typically when a child of yours dies). |
1476 | some child status changes (most typically when a child of yours dies). |
|
|
1477 | .PP |
|
|
1478 | \fIWatcher-Specific Functions and Data Members\fR |
|
|
1479 | .IX Subsection "Watcher-Specific Functions and Data Members" |
1450 | .IP "ev_child_init (ev_child *, callback, int pid)" 4 |
1480 | .IP "ev_child_init (ev_child *, callback, int pid)" 4 |
1451 | .IX Item "ev_child_init (ev_child *, callback, int pid)" |
1481 | .IX Item "ev_child_init (ev_child *, callback, int pid)" |
1452 | .PD 0 |
1482 | .PD 0 |
1453 | .IP "ev_child_set (ev_child *, int pid)" 4 |
1483 | .IP "ev_child_set (ev_child *, int pid)" 4 |
1454 | .IX Item "ev_child_set (ev_child *, int pid)" |
1484 | .IX Item "ev_child_set (ev_child *, int pid)" |
… | |
… | |
1519 | reader). Inotify will be used to give hints only and should not change the |
1549 | reader). Inotify will be used to give hints only and should not change the |
1520 | semantics of \f(CW\*(C`ev_stat\*(C'\fR watchers, which means that libev sometimes needs |
1550 | semantics of \f(CW\*(C`ev_stat\*(C'\fR watchers, which means that libev sometimes needs |
1521 | to fall back to regular polling again even with inotify, but changes are |
1551 | to fall back to regular polling again even with inotify, but changes are |
1522 | usually detected immediately, and if the file exists there will be no |
1552 | usually detected immediately, and if the file exists there will be no |
1523 | polling. |
1553 | polling. |
|
|
1554 | .PP |
|
|
1555 | \fIWatcher-Specific Functions and Data Members\fR |
|
|
1556 | .IX Subsection "Watcher-Specific Functions and Data Members" |
1524 | .IP "ev_stat_init (ev_stat *, callback, const char *path, ev_tstamp interval)" 4 |
1557 | .IP "ev_stat_init (ev_stat *, callback, const char *path, ev_tstamp interval)" 4 |
1525 | .IX Item "ev_stat_init (ev_stat *, callback, const char *path, ev_tstamp interval)" |
1558 | .IX Item "ev_stat_init (ev_stat *, callback, const char *path, ev_tstamp interval)" |
1526 | .PD 0 |
1559 | .PD 0 |
1527 | .IP "ev_stat_set (ev_stat *, const char *path, ev_tstamp interval)" 4 |
1560 | .IP "ev_stat_set (ev_stat *, const char *path, ev_tstamp interval)" 4 |
1528 | .IX Item "ev_stat_set (ev_stat *, const char *path, ev_tstamp interval)" |
1561 | .IX Item "ev_stat_set (ev_stat *, const char *path, ev_tstamp interval)" |
… | |
… | |
1607 | .PP |
1640 | .PP |
1608 | Apart from keeping your process non-blocking (which is a useful |
1641 | Apart from keeping your process non-blocking (which is a useful |
1609 | effect on its own sometimes), idle watchers are a good place to do |
1642 | effect on its own sometimes), idle watchers are a good place to do |
1610 | \&\*(L"pseudo\-background processing\*(R", or delay processing stuff to after the |
1643 | \&\*(L"pseudo\-background processing\*(R", or delay processing stuff to after the |
1611 | event loop has handled all outstanding events. |
1644 | event loop has handled all outstanding events. |
|
|
1645 | .PP |
|
|
1646 | \fIWatcher-Specific Functions and Data Members\fR |
|
|
1647 | .IX Subsection "Watcher-Specific Functions and Data Members" |
1612 | .IP "ev_idle_init (ev_signal *, callback)" 4 |
1648 | .IP "ev_idle_init (ev_signal *, callback)" 4 |
1613 | .IX Item "ev_idle_init (ev_signal *, callback)" |
1649 | .IX Item "ev_idle_init (ev_signal *, callback)" |
1614 | Initialises and configures the idle watcher \- it has no parameters of any |
1650 | Initialises and configures the idle watcher \- it has no parameters of any |
1615 | kind. There is a \f(CW\*(C`ev_idle_set\*(C'\fR macro, but using it is utterly pointless, |
1651 | kind. There is a \f(CW\*(C`ev_idle_set\*(C'\fR macro, but using it is utterly pointless, |
1616 | believe me. |
1652 | believe me. |
… | |
… | |
1681 | supports this, they will be called before other \f(CW\*(C`ev_check\*(C'\fR watchers did |
1717 | supports this, they will be called before other \f(CW\*(C`ev_check\*(C'\fR watchers did |
1682 | their job. As \f(CW\*(C`ev_check\*(C'\fR watchers are often used to embed other event |
1718 | their job. As \f(CW\*(C`ev_check\*(C'\fR watchers are often used to embed other event |
1683 | loops those other event loops might be in an unusable state until their |
1719 | loops those other event loops might be in an unusable state until their |
1684 | \&\f(CW\*(C`ev_check\*(C'\fR watcher ran (always remind yourself to coexist peacefully with |
1720 | \&\f(CW\*(C`ev_check\*(C'\fR watcher ran (always remind yourself to coexist peacefully with |
1685 | others). |
1721 | others). |
|
|
1722 | .PP |
|
|
1723 | \fIWatcher-Specific Functions and Data Members\fR |
|
|
1724 | .IX Subsection "Watcher-Specific Functions and Data Members" |
1686 | .IP "ev_prepare_init (ev_prepare *, callback)" 4 |
1725 | .IP "ev_prepare_init (ev_prepare *, callback)" 4 |
1687 | .IX Item "ev_prepare_init (ev_prepare *, callback)" |
1726 | .IX Item "ev_prepare_init (ev_prepare *, callback)" |
1688 | .PD 0 |
1727 | .PD 0 |
1689 | .IP "ev_check_init (ev_check *, callback)" 4 |
1728 | .IP "ev_check_init (ev_check *, callback)" 4 |
1690 | .IX Item "ev_check_init (ev_check *, callback)" |
1729 | .IX Item "ev_check_init (ev_check *, callback)" |
… | |
… | |
1937 | \& ev_embed_start (loop_hi, &embed); |
1976 | \& ev_embed_start (loop_hi, &embed); |
1938 | \& } |
1977 | \& } |
1939 | \& else |
1978 | \& else |
1940 | \& loop_lo = loop_hi; |
1979 | \& loop_lo = loop_hi; |
1941 | .Ve |
1980 | .Ve |
|
|
1981 | .PP |
|
|
1982 | \fIWatcher-Specific Functions and Data Members\fR |
|
|
1983 | .IX Subsection "Watcher-Specific Functions and Data Members" |
1942 | .IP "ev_embed_init (ev_embed *, callback, struct ev_loop *embedded_loop)" 4 |
1984 | .IP "ev_embed_init (ev_embed *, callback, struct ev_loop *embedded_loop)" 4 |
1943 | .IX Item "ev_embed_init (ev_embed *, callback, struct ev_loop *embedded_loop)" |
1985 | .IX Item "ev_embed_init (ev_embed *, callback, struct ev_loop *embedded_loop)" |
1944 | .PD 0 |
1986 | .PD 0 |
1945 | .IP "ev_embed_set (ev_embed *, callback, struct ev_loop *embedded_loop)" 4 |
1987 | .IP "ev_embed_set (ev_embed *, callback, struct ev_loop *embedded_loop)" 4 |
1946 | .IX Item "ev_embed_set (ev_embed *, callback, struct ev_loop *embedded_loop)" |
1988 | .IX Item "ev_embed_set (ev_embed *, callback, struct ev_loop *embedded_loop)" |
… | |
… | |
1966 | \&\f(CW\*(C`ev_default_fork\*(C'\fR or \f(CW\*(C`ev_loop_fork\*(C'\fR). The invocation is done before the |
2008 | \&\f(CW\*(C`ev_default_fork\*(C'\fR or \f(CW\*(C`ev_loop_fork\*(C'\fR). The invocation is done before the |
1967 | event loop blocks next and before \f(CW\*(C`ev_check\*(C'\fR watchers are being called, |
2009 | event loop blocks next and before \f(CW\*(C`ev_check\*(C'\fR watchers are being called, |
1968 | and only in the child after the fork. If whoever good citizen calling |
2010 | and only in the child after the fork. If whoever good citizen calling |
1969 | \&\f(CW\*(C`ev_default_fork\*(C'\fR cheats and calls it in the wrong process, the fork |
2011 | \&\f(CW\*(C`ev_default_fork\*(C'\fR cheats and calls it in the wrong process, the fork |
1970 | handlers will be invoked, too, of course. |
2012 | handlers will be invoked, too, of course. |
|
|
2013 | .PP |
|
|
2014 | \fIWatcher-Specific Functions and Data Members\fR |
|
|
2015 | .IX Subsection "Watcher-Specific Functions and Data Members" |
1971 | .IP "ev_fork_init (ev_signal *, callback)" 4 |
2016 | .IP "ev_fork_init (ev_signal *, callback)" 4 |
1972 | .IX Item "ev_fork_init (ev_signal *, callback)" |
2017 | .IX Item "ev_fork_init (ev_signal *, callback)" |
1973 | Initialises and configures the fork watcher \- it has no parameters of any |
2018 | Initialises and configures the fork watcher \- it has no parameters of any |
1974 | kind. There is a \f(CW\*(C`ev_fork_set\*(C'\fR macro, but using it is utterly pointless, |
2019 | kind. There is a \f(CW\*(C`ev_fork_set\*(C'\fR macro, but using it is utterly pointless, |
1975 | believe me. |
2020 | believe me. |
… | |
… | |
2169 | Starts the watcher. Note that there is no \f(CW\*(C`loop\*(C'\fR argument, as the |
2214 | Starts the watcher. Note that there is no \f(CW\*(C`loop\*(C'\fR argument, as the |
2170 | constructor already stores the event loop. |
2215 | constructor already stores the event loop. |
2171 | .IP "w\->stop ()" 4 |
2216 | .IP "w\->stop ()" 4 |
2172 | .IX Item "w->stop ()" |
2217 | .IX Item "w->stop ()" |
2173 | Stops the watcher if it is active. Again, no \f(CW\*(C`loop\*(C'\fR argument. |
2218 | Stops the watcher if it is active. Again, no \f(CW\*(C`loop\*(C'\fR argument. |
2174 | .ie n .IP "w\->again () ""ev::timer""\fR, \f(CW""ev::periodic"" only" 4 |
2219 | .ie n .IP "w\->again () (""ev::timer""\fR, \f(CW""ev::periodic"" only)" 4 |
2175 | .el .IP "w\->again () \f(CWev::timer\fR, \f(CWev::periodic\fR only" 4 |
2220 | .el .IP "w\->again () (\f(CWev::timer\fR, \f(CWev::periodic\fR only)" 4 |
2176 | .IX Item "w->again () ev::timer, ev::periodic only" |
2221 | .IX Item "w->again () (ev::timer, ev::periodic only)" |
2177 | For \f(CW\*(C`ev::timer\*(C'\fR and \f(CW\*(C`ev::periodic\*(C'\fR, this invokes the corresponding |
2222 | For \f(CW\*(C`ev::timer\*(C'\fR and \f(CW\*(C`ev::periodic\*(C'\fR, this invokes the corresponding |
2178 | \&\f(CW\*(C`ev_TYPE_again\*(C'\fR function. |
2223 | \&\f(CW\*(C`ev_TYPE_again\*(C'\fR function. |
2179 | .ie n .IP "w\->sweep () ""ev::embed"" only" 4 |
2224 | .ie n .IP "w\->sweep () (""ev::embed"" only)" 4 |
2180 | .el .IP "w\->sweep () \f(CWev::embed\fR only" 4 |
2225 | .el .IP "w\->sweep () (\f(CWev::embed\fR only)" 4 |
2181 | .IX Item "w->sweep () ev::embed only" |
2226 | .IX Item "w->sweep () (ev::embed only)" |
2182 | Invokes \f(CW\*(C`ev_embed_sweep\*(C'\fR. |
2227 | Invokes \f(CW\*(C`ev_embed_sweep\*(C'\fR. |
2183 | .ie n .IP "w\->update () ""ev::stat"" only" 4 |
2228 | .ie n .IP "w\->update () (""ev::stat"" only)" 4 |
2184 | .el .IP "w\->update () \f(CWev::stat\fR only" 4 |
2229 | .el .IP "w\->update () (\f(CWev::stat\fR only)" 4 |
2185 | .IX Item "w->update () ev::stat only" |
2230 | .IX Item "w->update () (ev::stat only)" |
2186 | Invokes \f(CW\*(C`ev_stat_stat\*(C'\fR. |
2231 | Invokes \f(CW\*(C`ev_stat_stat\*(C'\fR. |
2187 | .RE |
2232 | .RE |
2188 | .RS 4 |
2233 | .RS 4 |
2189 | .RE |
2234 | .RE |
2190 | .PP |
2235 | .PP |
… | |
… | |
2214 | \& io.start (fd, ev::READ); |
2259 | \& io.start (fd, ev::READ); |
2215 | \& } |
2260 | \& } |
2216 | .Ve |
2261 | .Ve |
2217 | .SH "MACRO MAGIC" |
2262 | .SH "MACRO MAGIC" |
2218 | .IX Header "MACRO MAGIC" |
2263 | .IX Header "MACRO MAGIC" |
2219 | Libev can be compiled with a variety of options, the most fundemantal is |
2264 | Libev can be compiled with a variety of options, the most fundamantal |
2220 | \&\f(CW\*(C`EV_MULTIPLICITY\*(C'\fR. This option determines whether (most) functions and |
2265 | of which is \f(CW\*(C`EV_MULTIPLICITY\*(C'\fR. This option determines whether (most) |
2221 | callbacks have an initial \f(CW\*(C`struct ev_loop *\*(C'\fR argument. |
2266 | functions and callbacks have an initial \f(CW\*(C`struct ev_loop *\*(C'\fR argument. |
2222 | .PP |
2267 | .PP |
2223 | To make it easier to write programs that cope with either variant, the |
2268 | To make it easier to write programs that cope with either variant, the |
2224 | following macros are defined: |
2269 | following macros are defined: |
2225 | .ie n .IP """EV_A""\fR, \f(CW""EV_A_""" 4 |
2270 | .ie n .IP """EV_A""\fR, \f(CW""EV_A_""" 4 |
2226 | .el .IP "\f(CWEV_A\fR, \f(CWEV_A_\fR" 4 |
2271 | .el .IP "\f(CWEV_A\fR, \f(CWEV_A_\fR" 4 |