first commit

public/system/library/cache/apc.php

@@ -0,0 +1,33 @@
+<?php
+namespace Cache;
+class APC {
+	private $expire;
+	private $active = false;
+
+	public function __construct($expire) {
+		$this->expire = $expire;
+		$this->active = function_exists('apc_cache_info') && ini_get('apc.enabled');
+	}
+
+	public function get($key) {
+		return $this->active ? apc_fetch(CACHE_PREFIX . $key) : false;
+	}
+
+	public function set($key, $value) {
+		return $this->active ? apc_store(CACHE_PREFIX . $key, $value, $this->expire) : false;
+	}
+
+	public function delete($key) {
+		if (!$this->active) {
+			return false;
+		}
+		
+		$cache_info = apc_cache_info('user');
+		$cache_list = $cache_info['cache_list'];
+		foreach ($cache_list as $entry) {
+			if (strpos($entry['info'], CACHE_PREFIX . $key) === 0) {
+				apcu_delete($entry['info']);
+			}
+		}
+	}
+}

public/system/library/cache/file.php

@@ -0,0 +1,79 @@
+<?php
+namespace Cache;
+class File {
+	private $expire;
+
+	public function __construct($expire = 3600) {
+		$this->expire = $expire;
+
+		$files = glob(DIR_CACHE . 'cache.*');
+
+		if ($files) {
+			foreach ($files as $file) {
+				$filename = basename($file);
+
+				$time = substr(strrchr($file, '.'), 1);
+
+				if ($time < time()) {
+					$this->delete(substr($filename, 6, strrpos($filename, '.') - 6));
+				}
+			}
+		}
+	}
+
+	public function get($key) {
+		$files = glob(DIR_CACHE . 'cache.' . preg_replace('/[^A-Z0-9\._-]/i', '', $key) . '.*');
+
+		if ($files) {
+			$handle = fopen($files[0], 'r');
+
+			flock($handle, LOCK_SH);
+
+			$size = filesize($files[0]);
+
+			if ($size > 0) {
+				$data = fread($handle, $size);
+			} else {
+				$data = '';
+			}
+
+			flock($handle, LOCK_UN);
+
+			fclose($handle);
+
+			return json_decode($data, true);
+		}
+
+		return false;
+	}
+
+	public function set($key, $value) {
+		$this->delete($key);
+
+		$file = DIR_CACHE . 'cache.' . basename($key) . '.' . (time() + $this->expire);
+
+		$handle = fopen($file, 'w');
+
+		flock($handle, LOCK_EX);
+
+		fwrite($handle, json_encode($value));
+
+		fflush($handle);
+
+		flock($handle, LOCK_UN);
+
+		fclose($handle);
+	}
+
+	public function delete(string $key) {
+		$files = glob(DIR_CACHE . 'cache.' . basename($key) . '.*');
+
+		if ($files) {
+			foreach ($files as $file) {
+				if (!@unlink($file)) {
+					clearstatcache(false, $file);
+				}
+			}
+		}
+	}
+}

public/system/library/cache/mem.php

@@ -0,0 +1,27 @@
+<?php
+namespace Cache;
+class Mem {
+	private $expire;
+	private $memcache;
+	
+	const CACHEDUMP_LIMIT = 9999;
+
+	public function __construct($expire) {
+		$this->expire = $expire;
+
+		$this->memcache = new \Memcache();
+		$this->memcache->pconnect(CACHE_HOSTNAME, CACHE_PORT);
+	}
+
+	public function get($key) {
+		return $this->memcache->get(CACHE_PREFIX . $key);
+	}
+
+	public function set($key, $value) {
+		return $this->memcache->set(CACHE_PREFIX . $key, $value, MEMCACHE_COMPRESSED, $this->expire);
+	}
+
+	public function delete($key) {
+		$this->memcache->delete(CACHE_PREFIX . $key);
+	}
+}

public/system/library/cache/memcached.php

@@ -0,0 +1,27 @@
+<?php
+namespace Cache;
+class Memcached {
+	private $expire;
+	private $memcached;
+
+	const CACHEDUMP_LIMIT = 9999;
+
+	public function __construct($expire) {
+		$this->expire = $expire;
+		$this->memcached = new \Memcached();
+
+		$this->memcached->addServer(CACHE_HOSTNAME, CACHE_PORT);
+	}
+
+	public function get($key) {
+		return $this->memcached->get(CACHE_PREFIX . $key);
+	}
+
+	public function set($key, $value) {
+		return $this->memcached->set(CACHE_PREFIX . $key, $value, $this->expire);
+	}
+
+	public function delete($key) {
+		$this->memcached->delete(CACHE_PREFIX . $key);
+	}
+}

public/system/library/cache/redis.php

@@ -0,0 +1,33 @@
+<?php
+namespace Cache;
+class Redis {
+	private $expire;
+	private $cache;
+
+	public function __construct($expire) {
+		$this->expire = $expire;
+
+		$this->cache = new \Redis();
+		$this->cache->pconnect(CACHE_HOSTNAME, CACHE_PORT);
+	}
+
+	public function get($key) {
+		$data = $this->cache->get(CACHE_PREFIX . $key);
+
+		return json_decode($data, true);
+	}
+
+	public function set($key, $value) {
+		$status = $this->cache->set(CACHE_PREFIX . $key, json_encode($value));
+
+		if ($status) {
+			$this->cache->expire(CACHE_PREFIX . $key, $this->expire);
+		}
+
+		return $status;
+	}
+
+	public function delete($key) {
+		$this->cache->del(CACHE_PREFIX . $key);
+	}
+}