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-rw-r--r--ev.333
1 files changed, 28 insertions, 5 deletions
diff --git a/ev.3 b/ev.3
index 1f33e81..8e5a19f 100644
--- a/ev.3
+++ b/ev.3
@@ -129,7 +129,7 @@
.\" ========================================================================
.\"
.IX Title ""<STANDARD INPUT>" 1"
-.TH "<STANDARD INPUT>" 1 "2007-12-07" "perl v5.8.8" "User Contributed Perl Documentation"
+.TH "<STANDARD INPUT>" 1 "2007-12-08" "perl v5.8.8" "User Contributed Perl Documentation"
.SH "NAME"
libev \- a high performance full\-featured event loop written in C
.SH "SYNOPSIS"
@@ -891,8 +891,9 @@ it.
Returns a true value iff the watcher is pending, (i.e. it has outstanding
events but its callback has not yet been invoked). As long as a watcher
is pending (but not active) you must not call an init function on it (but
-\&\f(CW\*(C`ev_TYPE_set\*(C'\fR is safe) and you must make sure the watcher is available to
-libev (e.g. you cnanot \f(CW\*(C`free ()\*(C'\fR it).
+\&\f(CW\*(C`ev_TYPE_set\*(C'\fR is safe), you must not change its priority, and you must
+make sure the watcher is available to libev (e.g. you cannot \f(CW\*(C`free ()\*(C'\fR
+it).
.IP "callback ev_cb (ev_TYPE *watcher)" 4
.IX Item "callback ev_cb (ev_TYPE *watcher)"
Returns the callback currently set on the watcher.
@@ -920,12 +921,25 @@ watchers on the same event and make sure one is called first.
If you need to suppress invocation when higher priority events are pending
you need to look at \f(CW\*(C`ev_idle\*(C'\fR watchers, which provide this functionality.
.Sp
+You \fImust not\fR change the priority of a watcher as long as it is active or
+pending.
+.Sp
The default priority used by watchers when no priority has been set is
always \f(CW0\fR, which is supposed to not be too high and not be too low :).
.Sp
Setting a priority outside the range of \f(CW\*(C`EV_MINPRI\*(C'\fR to \f(CW\*(C`EV_MAXPRI\*(C'\fR is
fine, as long as you do not mind that the priority value you query might
or might not have been adjusted to be within valid range.
+.IP "ev_invoke (loop, ev_TYPE *watcher, int revents)" 4
+.IX Item "ev_invoke (loop, ev_TYPE *watcher, int revents)"
+Invoke the \f(CW\*(C`watcher\*(C'\fR with the given \f(CW\*(C`loop\*(C'\fR and \f(CW\*(C`revents\*(C'\fR. Neither
+\&\f(CW\*(C`loop\*(C'\fR nor \f(CW\*(C`revents\*(C'\fR need to be valid as long as the watcher callback
+can deal with that fact.
+.IP "int ev_clear_pending (loop, ev_TYPE *watcher)" 4
+.IX Item "int ev_clear_pending (loop, ev_TYPE *watcher)"
+If the watcher is pending, this function returns clears its pending status
+and returns its \f(CW\*(C`revents\*(C'\fR bitset (as if its callback was invoked). If the
+watcher isn't pending it does nothing and returns \f(CW0\fR.
.Sh "\s-1ASSOCIATING\s0 \s-1CUSTOM\s0 \s-1DATA\s0 \s-1WITH\s0 A \s-1WATCHER\s0"
.IX Subsection "ASSOCIATING CUSTOM DATA WITH A WATCHER"
Each watcher has, by default, a member \f(CW\*(C`void *data\*(C'\fR that you can change
@@ -1980,13 +1994,22 @@ Example: simple class declaration and watcher initialisation
\& ev::io iow;
\& iow.set <myclass, &myclass::io_cb> (&obj);
.Ve
-.IP "w\->set (void (*function)(watcher &w, int), void *data = 0)" 4
-.IX Item "w->set (void (*function)(watcher &w, int), void *data = 0)"
+.IP "w\->set<function> (void *data = 0)" 4
+.IX Item "w->set<function> (void *data = 0)"
Also sets a callback, but uses a static method or plain function as
callback. The optional \f(CW\*(C`data\*(C'\fR argument will be stored in the watcher's
\&\f(CW\*(C`data\*(C'\fR member and is free for you to use.
.Sp
+The prototype of the \f(CW\*(C`function\*(C'\fR must be \f(CW\*(C`void (*)(ev::TYPE &w, int)\*(C'\fR.
+.Sp
See the method\-\f(CW\*(C`set\*(C'\fR above for more details.
+.Sp
+Example:
+.Sp
+.Vb 2
+\& static void io_cb (ev::io &w, int revents) { }
+\& iow.set <io_cb> ();
+.Ve
.IP "w\->set (struct ev_loop *)" 4
.IX Item "w->set (struct ev_loop *)"
Associates a different \f(CW\*(C`struct ev_loop\*(C'\fR with this watcher. You can only