PhutilLogfileChannel.php
ed335c485c0aproduction

PhutilLogfileChannel.php
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			<?php

			/**
			* A @{class:PhutilChannelChannel} which wraps some other channel and writes
			* data passed over it to a log file.
			*/
			final class PhutilLogfileChannel extends PhutilChannelChannel {

			private $logfile;

			public function setLogfile($path) {
			$this->logfile = fopen($path, 'a');
			$this->log('--- '.getmypid().' ---');
			return $this;
			}

			public function read() {
			$buffer = parent::read();
			$this->log('>>> '.phutil_loggable_string($buffer));
			return $buffer;
			}

			public function write($message) {
			$this->log('<<< '.phutil_loggable_string($message));
			return parent::write($message);
			}

			private function log($message) {
			if ($this->logfile) {
			fwrite($this->logfile, $message."\n");
			}
			}

			}