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Added documentation and renamed function

This commit is contained in:
Michael 2017-06-06 17:25:28 +00:00
parent f4652d6e50
commit 286b2da7a9
2 changed files with 28 additions and 28 deletions
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12
doc/database/db_locks.md
View File

@ -1,11 +1,11 @@
Table locks
===========
| Field | Description | Type | Null | Key | Default | Extra |
|---------|------------------|--------------|------|-----|---------------------|----------------|
| id | sequential ID | int(11) | NO | PRI | NULL | auto_increment |
| name | | varchar(128) | NO | | | |
| locked | | tinyint(1) | NO | | 0 | |
| created | | datetime | YES | | 0001-01-01 00:00:00 | |
| Field | Description | Type | Null | Key | Default | Extra |
|---------|------------------|------------------|------|-----|---------------------|----------------|
| id | sequential ID | int(11) | NO | PRI | NULL | auto_increment |
| name | | varchar(128) | NO | | | |
| locked | | tinyint(1) | NO | | 0 | |
| pid | | int(10) unsigned | NO | | 0 | |
Return to [database documentation](help/database)

44
src/Util/Lock.php
View File

@ -18,30 +18,30 @@ use dbm;
*/
class Lock {
/**
* @brief Check for memcache and open a connection if configured
*
* @return object|boolean The memcache object - or "false" if not successful
*/
public static function memcache() {
if (!function_exists('memcache_connect')) {
return false;
}
* @brief Check for memcache and open a connection if configured
*
* @return object|boolean The memcache object - or "false" if not successful
*/
private static function connect_memcache() {
if (!function_exists('memcache_connect')) {
return false;
}
if (!Config::get('system', 'memcache')) {
return false;
}
if (!Config::get('system', 'memcache')) {
return false;
}
$memcache_host = Config::get('system', 'memcache_host', '127.0.0.1');
$memcache_port = Config::get('system', 'memcache_port', 11211);
$memcache_host = Config::get('system', 'memcache_host', '127.0.0.1');
$memcache_port = Config::get('system', 'memcache_port', 11211);
$memcache = new Memcache;
$memcache = new Memcache;
if (!$memcache->connect($memcache_host, $memcache_port)) {
return false;
}
if (!$memcache->connect($memcache_host, $memcache_port)) {
return false;
}
return $memcache;
}
return $memcache;
}
/**
* @brief Sets a lock for a given name
@ -55,7 +55,7 @@ class Lock {
$got_lock = false;
$start = time();
$memcache = self::memcache();
$memcache = self::connect_memcache();
if (is_object($memcache)) {
$wait_sec = 0.2;
$cachekey = get_app()->get_hostname().";lock:".$fn_name;
@ -126,7 +126,7 @@ class Lock {
* @param string $fn_name Name of the lock
*/
public static function remove($fn_name) {
$memcache = self::memcache();
$memcache = self::connect_memcache();
if (is_object($memcache)) {
$cachekey = get_app()->get_hostname().";lock:".$fn_name;
$lock = $memcache->get($cachekey);
@ -147,7 +147,7 @@ class Lock {
* @brief Removes all lock that were set by us
*/
public static function removeAll() {
$memcache = self::memcache();
$memcache = self::connect_memcache();
if (is_object($memcache)) {
// We cannot delete all cache entries, but this doesn't matter with memcache
return;