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parallel/examples/process.php
Aaron Piotrowski 31cbd9f197
Update examples
2018-10-24 22:31:47 -05:00

37 lines
1.2 KiB
PHP
Executable File

#!/usr/bin/env php
<?php
require \dirname(__DIR__).'/vendor/autoload.php';
use Amp\ByteStream;
use Amp\Delayed;
use Amp\Loop;
use Amp\Parallel\Context\Process;
Loop::run(function () {
$timer = Loop::repeat(1000, function () {
static $i;
$i = $i ? ++$i : 1;
print "Demonstrating how alive the parent is for the {$i}th time.\n";
});
try {
// Create a new child process that does some blocking stuff.
$context = yield Process::run(__DIR__ . "/blocking-process.php");
\assert($context instanceof Process);
// Pipe any data written to the STDOUT in the child process to STDOUT of this process.
Amp\Promise\rethrow(ByteStream\pipe($context->getStdout(), ByteStream\getStdout()));
print "Waiting 2 seconds to send start data...\n";
yield new Delayed(2000);
yield $context->send("Start data"); // Data sent to child process, received on line 9 of blocking-process.php
\printf("Received the following from child: %s\n", yield $context->receive()); // Sent on line 14 of blocking-process.php
\printf("Process ended with value %d!\n", yield $context->join());
} finally {
Loop::cancel($timer);
}
});