88 lines
1.8 KiB
PHP
88 lines
1.8 KiB
PHP
<?php
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namespace W3TC;
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/**
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* Download extended statistics since module cant do it by itself
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*/
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class Cache_Memcached_Stats {
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public function __construct( $host, $port ) {
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$this->host = $host;
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$this->port = $port;
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}
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public function request( $command ) {
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$handle = @fsockopen( $this->host, $this->port );
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if ( !$handle )
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return null;
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fwrite( $handle, $command . "\r\n" );
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$response = array();
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while ( ( !feof( $handle ) ) ) {
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$line = fgets( $handle );
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$response[] = $line;
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if ( $this->end( $line, $command ) )
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break;
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}
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@fclose( $handle );
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return $response;
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}
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private function end( $buffer, $command ) {
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// incr or decr also return integer
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if ( ( preg_match( '/^(incr|decr)/', $command ) ) ) {
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if ( preg_match(
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'/^(END|ERROR|SERVER_ERROR|CLIENT_ERROR|NOT_FOUND|[0-9]*)/',
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$buffer ) )
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return true;
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} else {
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if ( preg_match( '/^(END|DELETED|OK|ERROR|SERVER_ERROR|CLIENT_ERROR|NOT_FOUND|STORED|RESET|TOUCHED)/', $buffer ) )
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return true;
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}
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return false;
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}
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public function parse( $lines ) {
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$return = array();
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foreach ( $lines as $line ) {
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$data = explode( ' ', $line );
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$return[] = $data;
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}
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return $return;
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}
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public function slabs() {
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$result = $this->request( 'stats slabs' );
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if ( is_null( $result ) )
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return null;
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$result = $this->parse( $result );
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$slabs = array();
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foreach ( $result as $line_words ) {
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if ( count( $line_words ) < 2 )
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continue;
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$key = explode( ':', $line_words[1] );
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if ( (int)$key[0] > 0 )
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$slabs[$key[0]] = '*';
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}
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return array_keys( $slabs );
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}
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public function cachedump( $slab_id ) {
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$result = $this->request( 'stats cachedump ' . $slab_id . ' 0' );
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if ( is_null( $result ) )
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return null;
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// return pure data to limit memory usage
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return $result;
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}
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}
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