initial

2018-01-09 19:54:49 +09:00
commit 7b3201548a
518 changed files with 174188 additions and 0 deletions
@@ -0,0 +1,73 @@
+<?
+require_once('_common.php');
+require_once(ROOT.'/f_config/config.php');
+
+class _Lock {
+    private static $l = ROOT.W.'lock.txt';
+
+    public static function Busy() {
+        $fp = fopen(_Lock::$l, 'r');
+        $lock = fread($fp, 1);
+        fclose($fp);
+
+        if($lock == 1) return true;
+        else return false;
+    }
+
+    private static function LockFile() {
+        $fp = fopen(_Lock::$l, 'r');
+        $lock = fread($fp, 1);
+        fclose($fp);
+
+        if($lock == 1) return false;
+
+        $fp = fopen(_Lock::$l, 'w');
+        if(!flock($fp, LOCK_EX)) { return false; }
+        fwrite($fp, '1');
+        fclose($fp);
+        flock($fp, LOCK_UN);
+
+        return true;
+    }
+
+    private static function UnlockFile() {
+        $fp = fopen(_Lock::$l, 'r');
+        $lock = fread($fp, 1);
+        fclose($fp);
+
+        if($lock == 0) return false;
+
+        $fp = fopen(_Lock::$l, 'w');
+        if(!flock($fp, LOCK_EX)) { return false; }
+        fwrite($fp, '0');
+        fclose($fp);
+        flock($fp, LOCK_UN);
+
+        return true;
+    }
+
+    public static function Lock() {
+/*
+        // 키 생성
+        $key = fileinode(_Lock::$l);
+        // 뮤텍스 획득
+        $mutex = sem_get($key);
+        // 락 획득
+        sem_acquire($mutex);
+*/
+        // 파일에 잠금 걸기
+        return _Lock::LockFile();
+    }
+
+    public static function Unlock() {
+        // 파일에 잠금 풀기
+        $res = _Lock::UnlockFile();
+/*
+        // 락 해제
+        sem_release($mutex);
+*/
+        return $res;
+    }
+}
+
+?>