Php/docs/function.dbplus-getlock

• PHP Manual
• DB++ 函数
• Get a write lock on a tuple

dbplus_getlock

(PHP 4 <= 4.3.0, PECL dbplus >= 0.9)

dbplus_getlock — Get a write lock on a tuple

说明

dbplus_getlock ( resource $relation , string $tuple ) : int

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