? 资源类型
Semaphore 函数 ?
PHP Manual
Semaphore
预定义常量
预定义常量
下列常量由此扩展定义,且仅在此扩展编译入 PHP 或在运行时动态载入时可用。
System V message constants
Constant
Type
Changelog
MSG_IPC_NOWAIT
integer
MSG_EAGAIN
integer
As of 5.2.0
MSG_ENOMSG
integer
As of 5.2.0
MSG_NOERROR
integer
MSG_EXCEPT
integer
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