diff options
Diffstat (limited to 'ev.3')
| -rw-r--r-- | ev.3 | 47 |
1 files changed, 31 insertions, 16 deletions
@@ -128,8 +128,8 @@ .rm #[ #] #H #V #F C .\" ======================================================================== .\" -.IX Title ""<STANDARD INPUT>" 1" -.TH "<STANDARD INPUT>" 1 "2007-12-12" "perl v5.8.8" "User Contributed Perl Documentation" +.IX Title "EV 1" +.TH EV 1 "2007-12-18" "perl v5.8.8" "User Contributed Perl Documentation" .SH "NAME" libev \- a high performance full\-featured event loop written in C .SH "SYNOPSIS" @@ -245,7 +245,9 @@ Libev represents time as a single floating point number, representing the the beginning of 1970, details are complicated, don't ask). This type is called \f(CW\*(C`ev_tstamp\*(C'\fR, which is what you should use too. It usually aliases to the \f(CW\*(C`double\*(C'\fR type in C, and when you need to do any calculations on -it, you should treat it as such. +it, you should treat it as some floatingpoint value. Unlike the name +component \f(CW\*(C`stamp\*(C'\fR might indicate, it is also used for time differences +throughout libev. .SH "GLOBAL FUNCTIONS" .IX Header "GLOBAL FUNCTIONS" These functions can be called anytime, even before initialising the @@ -557,8 +559,17 @@ etc.). None of the active event watchers will be stopped in the normal sense, so e.g. \f(CW\*(C`ev_is_active\*(C'\fR might still return true. It is your responsibility to either stop all watchers cleanly yoursef \fIbefore\fR calling this function, or cope with the fact afterwards (which is usually -the easiest thing, youc na just ignore the watchers and/or \f(CW\*(C`free ()\*(C'\fR them +the easiest thing, you can just ignore the watchers and/or \f(CW\*(C`free ()\*(C'\fR them for example). +.Sp +Not that certain global state, such as signal state, will not be freed by +this function, and related watchers (such as signal and child watchers) +would need to be stopped manually. +.Sp +In general it is not advisable to call this function except in the +rare occasion where you really need to free e.g. the signal handling +pipe fds. If you need dynamically allocated loops it is better to use +\&\f(CW\*(C`ev_loop_new\*(C'\fR and \f(CW\*(C`ev_loop_destroy\*(C'\fR). .IP "ev_loop_destroy (loop)" 4 .IX Item "ev_loop_destroy (loop)" Like \f(CW\*(C`ev_default_destroy\*(C'\fR, but destroys an event loop created by an @@ -1381,6 +1392,10 @@ called. The current reschedule callback, or \f(CW0\fR, if this functionality is switched off. Can be changed any time, but changes only take effect when the periodic timer fires or \f(CW\*(C`ev_periodic_again\*(C'\fR is being called. +.IP "ev_tstamp at [read\-only]" 4 +.IX Item "ev_tstamp at [read-only]" +When active, contains the absolute time that the watcher is supposed to +trigger next. .PP Example: Call a callback every hour, or, more precisely, whenever the system clock is divisible by 3600. The callback invocation times have @@ -2201,18 +2216,18 @@ constructor already stores the event loop. .IP "w\->stop ()" 4 .IX Item "w->stop ()" Stops the watcher if it is active. Again, no \f(CW\*(C`loop\*(C'\fR argument. -.ie n .IP "w\->again () ""ev::timer""\fR, \f(CW""ev::periodic"" only" 4 -.el .IP "w\->again () \f(CWev::timer\fR, \f(CWev::periodic\fR only" 4 -.IX Item "w->again () ev::timer, ev::periodic only" +.ie n .IP "w\->again () (""ev::timer""\fR, \f(CW""ev::periodic"" only)" 4 +.el .IP "w\->again () (\f(CWev::timer\fR, \f(CWev::periodic\fR only)" 4 +.IX Item "w->again () (ev::timer, ev::periodic only)" For \f(CW\*(C`ev::timer\*(C'\fR and \f(CW\*(C`ev::periodic\*(C'\fR, this invokes the corresponding \&\f(CW\*(C`ev_TYPE_again\*(C'\fR function. -.ie n .IP "w\->sweep () ""ev::embed"" only" 4 -.el .IP "w\->sweep () \f(CWev::embed\fR only" 4 -.IX Item "w->sweep () ev::embed only" +.ie n .IP "w\->sweep () (""ev::embed"" only)" 4 +.el .IP "w\->sweep () (\f(CWev::embed\fR only)" 4 +.IX Item "w->sweep () (ev::embed only)" Invokes \f(CW\*(C`ev_embed_sweep\*(C'\fR. -.ie n .IP "w\->update () ""ev::stat"" only" 4 -.el .IP "w\->update () \f(CWev::stat\fR only" 4 -.IX Item "w->update () ev::stat only" +.ie n .IP "w\->update () (""ev::stat"" only)" 4 +.el .IP "w\->update () (\f(CWev::stat\fR only)" 4 +.IX Item "w->update () (ev::stat only)" Invokes \f(CW\*(C`ev_stat_stat\*(C'\fR. .RE .RS 4 @@ -2246,9 +2261,9 @@ the constructor. .Ve .SH "MACRO MAGIC" .IX Header "MACRO MAGIC" -Libev can be compiled with a variety of options, the most fundemantal is -\&\f(CW\*(C`EV_MULTIPLICITY\*(C'\fR. This option determines whether (most) functions and -callbacks have an initial \f(CW\*(C`struct ev_loop *\*(C'\fR argument. +Libev can be compiled with a variety of options, the most fundamantal +of which is \f(CW\*(C`EV_MULTIPLICITY\*(C'\fR. This option determines whether (most) +functions and callbacks have an initial \f(CW\*(C`struct ev_loop *\*(C'\fR argument. .PP To make it easier to write programs that cope with either variant, the following macros are defined: |