IPC::Shm
NAME IPC::Shm - Easily store variables in SysV shared memory. SYNOPSIS use IPC::Shm; our %variable : shm; Then, just use it like any other variable. EXPLANATION The "shm" variable attribute confers two properties to a package variable: 1. The variable will persist beyond the program's end. 2. All simultaneous processes will see the same value. Scalars, hashes, and arrays are supported. Filehandles
perlipc - Perl のプロセス間通信 (シグナル, fifo, パイプ, 安全な副プロセス, ソケット, セマフォ) - perldoc.jp
perlipc - Perl interprocess communication (signals, fifos, pipes, safe subprocesses, sockets, and semaphores) The basic IPC facilities of Perl are built out of the good old Unix signals, named pipes, pipe opens, the Berkeley socket routines, and SysV IPC calls. Each is used in slightly different situations. Perl uses a simple signal handling model: the %SIG hash contains names or references of use
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