文字
dbplus_getlock
(PHP 4 <= 4.1.0, PECL dbplus >= 0.9)
dbplus_getlock — Get a write lock on a tuple
说明
int dbplus_getlock
( resource
$relation
, string $tuple
)
Requests a write lock on the specified tuple.
参数
-
relation -
A relation opened by dbplus_open() .
-
tuple -
返回值
Returns zero on success or a non-zero error code, especially
DBPLUS_ERR_WLOCKED on failure.
注释
Warning
此函数是实验性的。此函数的表象，包括名称及其相关文档都可能在未来的 PHP 发布版本中未通知就被修改。使用本函数风险自担 。
参见
- dbplus_freelock() - Release write lock on tuple
- dbplus_freerlocks() - Free all tuple locks on given relation
- dbplus_freealllocks() - Free all locks held by this client