From 6ac5e048b3dc5206331186bab571e02f75c3454c Mon Sep 17 00:00:00 2001
From: friendica <info@friendica.com>
Date: Tue, 13 Nov 2012 20:53:33 -0800
Subject: cleanup

---
 include/lock.php | 75 --------------------------------------------------------
 1 file changed, 75 deletions(-)
 delete mode 100644 include/lock.php

(limited to 'include/lock.php')

diff --git a/include/lock.php b/include/lock.php
deleted file mode 100644
index 707e33609..000000000
--- a/include/lock.php
+++ /dev/null
@@ -1,75 +0,0 @@
-<?php
-
-// Provide some ability to lock a PHP function so that multiple processes
-// can't run the function concurrently
-if(! function_exists('lock_function')) {
-function lock_function($fn_name, $block = true, $wait_sec = 2, $timeout = 30) {
-	if( $wait_sec == 0 )
-		$wait_sec = 2;	// don't let the user pick a value that's likely to crash the system
-
-	$got_lock = false;
-	$start = time();
-
-	do {
-		q("LOCK TABLE locks WRITE");
-		$r = q("SELECT locked FROM locks WHERE name = '%s' LIMIT 1",
-			dbesc($fn_name)
-		);
-
-		if((count($r)) && (! $r[0]['locked'])) {
-			q("UPDATE locks SET locked = 1 WHERE name = '%s' LIMIT 1",
-				dbesc($fn_name)
-			);
-			$got_lock = true;
-		}
-		elseif(! $r) { // the Boolean value for count($r) should be equivalent to the Boolean value of $r
-			q("INSERT INTO locks ( name, locked ) VALUES ( '%s', 1 )",
-				dbesc($fn_name)
-			);
-			$got_lock = true;
-		}
-
-		q("UNLOCK TABLES");
-
-		if(($block) && (! $got_lock))
-			sleep($wait_sec);
-
-	} while(($block) && (! $got_lock) && ((time() - $start) < $timeout));
-
-	logger('lock_function: function ' . $fn_name . ' with blocking = ' . $block . ' got_lock = ' . $got_lock . ' time = ' . (time() - $start), LOGGER_DEBUG);
-	
-	return $got_lock;
-}}
-
-
-if(! function_exists('block_on_function_lock')) {
-function block_on_function_lock($fn_name, $wait_sec = 2, $timeout = 30) {
-	if( $wait_sec == 0 )
-		$wait_sec = 2;	// don't let the user pick a value that's likely to crash the system
-
-	$start = time();
-
-	do {
-		$r = q("SELECT locked FROM locks WHERE name = '%s' LIMIT 1",
-				dbesc($fn_name)
-		     );
-
-		if(count($r) && $r[0]['locked'])
-			sleep($wait_sec);
-
-	} while(count($r) && $r[0]['locked'] && ((time() - $start) < $timeout));
-
-	return;
-}}
-
-
-if(! function_exists('unlock_function')) {
-function unlock_function($fn_name) {
-	$r = q("UPDATE locks SET locked = 0 WHERE name = '%s' LIMIT 1",
-			dbesc($fn_name)
-	     );
-
-	logger('unlock_function: released lock for function ' . $fn_name, LOGGER_DEBUG);
-
-	return;
-}}
-- 
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