diff options
Diffstat (limited to 'ev.html')
| -rw-r--r-- | ev.html | 29 |
1 files changed, 25 insertions, 4 deletions
@@ -6,7 +6,7 @@ <meta name="description" content="Pod documentation for libev" /> <meta name="inputfile" content="<standard input>" /> <meta name="outputfile" content="<standard output>" /> - <meta name="created" content="Fri Dec 7 21:19:14 2007" /> + <meta name="created" content="Sat Dec 8 15:27:35 2007" /> <meta name="generator" content="Pod::Xhtml 1.57" /> <link rel="stylesheet" href="http://res.tst.eu/pod.css"/></head> <body> @@ -771,8 +771,9 @@ it.</p> <p>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 -<code>ev_TYPE_set</code> is safe) and you must make sure the watcher is available to -libev (e.g. you cnanot <code>free ()</code> it).</p> +<code>ev_TYPE_set</code> is safe), you must not change its priority, and you must +make sure the watcher is available to libev (e.g. you cannot <code>free ()</code> +it).</p> </dd> <dt>callback ev_cb (ev_TYPE *watcher)</dt> <dd> @@ -797,12 +798,26 @@ example, to reduce latency after idling, or more often, to bind two watchers on the same event and make sure one is called first.</p> <p>If you need to suppress invocation when higher priority events are pending you need to look at <code>ev_idle</code> watchers, which provide this functionality.</p> + <p>You <i>must not</i> change the priority of a watcher as long as it is active or +pending.</p> <p>The default priority used by watchers when no priority has been set is always <code>0</code>, which is supposed to not be too high and not be too low :).</p> <p>Setting a priority outside the range of <code>EV_MINPRI</code> to <code>EV_MAXPRI</code> 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.</p> </dd> + <dt>ev_invoke (loop, ev_TYPE *watcher, int revents)</dt> + <dd> + <p>Invoke the <code>watcher</code> with the given <code>loop</code> and <code>revents</code>. Neither +<code>loop</code> nor <code>revents</code> need to be valid as long as the watcher callback +can deal with that fact.</p> + </dd> + <dt>int ev_clear_pending (loop, ev_TYPE *watcher)</dt> + <dd> + <p>If the watcher is pending, this function returns clears its pending status +and returns its <code>revents</code> bitset (as if its callback was invoked). If the +watcher isn't pending it does nothing and returns <code>0</code>.</p> + </dd> </dl> @@ -1808,12 +1823,18 @@ thunking function, making it as fast as a direct C callback.</p> </pre> </dd> - <dt>w->set (void (*function)(watcher &w, int), void *data = 0)</dt> + <dt>w->set<function> (void *data = 0)</dt> <dd> <p>Also sets a callback, but uses a static method or plain function as callback. The optional <code>data</code> argument will be stored in the watcher's <code>data</code> member and is free for you to use.</p> + <p>The prototype of the <code>function</code> must be <code>void (*)(ev::TYPE &w, int)</code>.</p> <p>See the method-<code>set</code> above for more details.</p> + <p>Example:</p> +<pre> static void io_cb (ev::io &w, int revents) { } + iow.set <io_cb> (); + +</pre> </dd> <dt>w->set (struct ev_loop *)</dt> <dd> |