wp_cache_mutex_init() WPSCache 1.0

No Hooks.

Return

Null. Nothing.

Usage

wp_cache_mutex_init();

Code of wp_cache_mutex_init() wp cache mutex init ^{WPSCache 1.7.1}

<?php
function wp_cache_mutex_init() {
	global $mutex, $wp_cache_mutex_disabled, $use_flock, $blog_cache_dir, $mutex_filename, $sem_id;

	if ( defined( 'WPSC_DISABLE_LOCKING' ) || ( isset( $wp_cache_mutex_disabled ) && $wp_cache_mutex_disabled ) )
		return true;

	if( !is_bool( $use_flock ) ) {
		if(function_exists('sem_get'))
			$use_flock = false;
		else
			$use_flock = true;
	}

	$mutex = false;
	if ($use_flock )  {
		setup_blog_cache_dir();
		wp_cache_debug( "Created mutex lock on filename: {$blog_cache_dir}{$mutex_filename}", 5 );
		$mutex = @fopen( $blog_cache_dir . $mutex_filename, 'w' );
	} else {
		wp_cache_debug( "Created mutex lock on semaphore: {$sem_id}", 5 );
		$mutex = @sem_get( $sem_id, 1, 0666, 1 );
	}
}