Exception

A channel operation failed: it was written to after it was closed, or the wait looked like a deadlock.

Introduction#

write() throws it on a closed channel. The creator-coroutine check throws it from the coroutine that called phasync::channel(), when it waits on the channel and no other coroutine has done so within about 100 ms; see phasync::channel, and activate() to switch the check off. A timeout is a TimeoutException, not this.

Class synopsis#

class ChannelException extends RuntimeException implements \Throwable, \Stringable, RethrowExceptionInterface {

}

Examples#

phasync::run(function () {
    phasync::channel($read, $write, 1);
    phasync::go(fn () => $read->close());
    phasync::sleep(0.01);

    try {
        $write->write('late');
    } catch (phasync\ChannelException $e) {
        echo $e->getMessage(), "\n";   // Channel is closed
    }
});

See also#