NAME

Global::IPC::StaticVariable - A module can alloc 512MB Sysv IPC shared memory for perl

SYNOPSIS

use Global::IPC::StaticVariable;

DESCRIPTION

Global::IPC::StaticVariable is a module which can alloc 512MB Sysv IPC shared memory for perl.
You can use it to delivery contents, or use it as a job queue.
It can be updated with strings, or append into it, or get contents and clear it.

And all of the updating operation is under the mutex lock for data safety.

USAGE

# 0. use Global::IPC::StaticVariable;

use Global::IPC::StaticVariable qw/var_create var_destory var_read var_update var_append var_getreset var_length/;  

# 1. create a new global sysv ipc id

  my $id = var_create();  

# 2. update a string (with lock)

  var_update($id, "content");  

# 3. read by id (no lock)
# you can use var_update and var_read at different process

  my $content = var_read($id);  

# 4. append string (with lock)
# you can use this as a jobqueue

  var_append($id, ' append');

# 5. get length of var

  my $len = var_length($id);  

# 6. getreset
# get and reset pointer with lock, use like as a jobqueue

  var_getreset($id);  

# 7. destory memory

  var_destory($id);  

LICENSE

Copyright (C) itsusony. FreakOut.
MIT License

AUTHOR

itsusony itsusony@fout.jp