Php/docs/luasandbox.setcpulimit
LuaSandbox::setCPULimit
(PECL luasandbox >= 1.0.0)
LuaSandbox::setCPULimit — Set the CPU time limit for the Lua environment
说明
public LuaSandbox::setCPULimit
( float|bool $limit
) : void
Sets the CPU time limit for the Lua environment.
If the total user and system time used by the environment after the call to this method exceeds this limit, a LuaSandboxTimeoutError exception is thrown.
Time used in PHP callbacks is included in the limit.
Setting the time limit from a callback while Lua is running causes the timer to be reset, or started if it was not already running.
Note:
On Windows, the CPU limit will be ignored. On operating systems that do not support
CLOCK_THREAD_CPUTIME_ID, such as FreeBSD and Mac OS X, wall-clock time rather than CPU time will be limited.
参数
limit- Limit as a float in seconds, or
falsefor no limit.
返回值
没有返回值。
范例
Example #1 Calling a Lua function
<?php// create a new LuaSandbox$sandbox = new LuaSandbox();// set a time limit$sandbox->setCPULimit( 2 );// Run Lua code$sandbox->loadString( 'while true do end' )->call();?>
以上例程的输出类似于：
PHP Fatal error: Uncaught LuaSandboxTimeoutError: The maximum execution time for this script was exceeded
参见
- LuaSandbox::getCPUUsage() - Fetch the current CPU time usage of the Lua environment
- LuaSandbox::setMemoryLimit() - Set the memory limit for the Lua environment
