(PECL ev >= 0.2.0)

Ev::recommendedBackendsReturns a bit mask of recommended backends for current platform.


final public static void Ev::recommendedBackends ( void )

Returns the set of all backends compiled into this binary of libev and also recommended for this platform, meaning it will work for most file descriptor types. This set is often smaller than the one returned by ev_supported_backends() , as for example kqueue is broken on most BSD systems and will not be auto-detected unless it is requested explicitly. This is the set of backends that libev will probe no backends specified explicitly.


이 함수는 인수가 없습니다.


Returns a bit mask which can containing backend flags combined using bitwise OR operator.


Example #1 Embedding one loop into another

* Try to get an embeddable event loop and embed it into the default event loop.
* If it is impossible, use the default
* loop. The default loop is stored in $loop_hi, while the embeddable loop is
* stored in $loop_lo(which is $loop_hi in the case no embeddable loop can be
* used).
* Sample translated to PHP
* http://pod.tst.eu/http://cvs.schmorp.de/libev/ev.pod#Examples_CONTENT-9
$loop_hi EvLoop::defaultLoop();
$loop_lo NULL;
$embed   NULL;

* See if there is a chance of getting one that works
* (flags' value of 0 means autodetection)
$loop_lo Ev::embeddableBackends() & Ev::recommendedBackends()
 ? new 
EvLoop(Ev::embeddableBackends() & Ev::recommendedBackends())

if (
$loop_lo) {
$embed = new EvEmbed($loop_lo, function () {});
} else {
$loop_lo $loop_hi;


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