NAME

POSIX::1003::Proc - POSIX handling processes

SYNOPSIS

  use POSIX::1003::Proc qw/abort setpgid/;

  abort();
  setpgid($pid, $pgid);

DESCRIPTION

Functions which are bound to each separate process.

FUNCTIONS

Standard POSIX functions from stdlib.h

abort()

Abnormal process exit.

Standard POSIX functions from sys/wait.h

These functions have captial names because in C they are implemented as macro's (which are capitalized by convension)

WEXITSTATUS($?)

Returns the normal exit status of the child process. Only meaningful if WIFEXITED($?) is true.

WIFEXITED($?)

Returns true if the child process exited normally: "exit()" or by falling off the end of "main()".

WIFSIGNALED($?)

Returns true if the child process terminated because of a signal.

WIFSTOPPED($?)

Returns true if the child process is currently stopped. Can happen only if you specified the WUNTRACED flag to waitpid().

WSTOPSIG($?)

Returns the signal the child process was stopped for. Only meaningful if WIFSTOPPED($?) is true.

WTERMSIG($?)

Returns the signal the child process terminated for. Only meaningful if WIFSIGNALED($?) is true.

wait()

Simply "wait" in perlfunc.

waitpid(PID)

Simply "waitpid" in perlfunc.

Standard POSIX functions from unistd.h

_exit(CODE)

Leave the program without calling handlers registered with atexit (which is not available in Perl)

ctermid()

Generates the path name for the controlling terminal of this process. my $path = ctermid();

cuserid()

Get the login name of the effective user of the current process. See also perldoc -f getlogin my $name = cuserid();

getcwd()

Returns the name of the current working directory. See also Cwd.

nice(INTEGER)

  use POSIX::1003::Proc 'nice';
  $new_prio = nice($increment);

pause()

setpgid(PID, PPID)

setsid()

tcgetpgrp(FD)

tcsetpgrp(FD, PID)

times5()

The CORE times() function returns four values, conveniently converted into seconds (float). The POSIX times() returns five values in clocktics. To disambique those two, we offer the POSIX function under a slightly different name.

          ($user, $sys, $cuser, $csys) = CORE::times();
 ($elapse, $user, $sys, $cuser, $csys) = POSIX::times();
 ($elapse, $user, $sys, $cuser, $csys) = times5();

CONSTANTS

Constants from stdlib.h

 EXIT_FAILURE
 EXIT_SUCCESS

Constants from limits.h

 CHILD_MAX

SEE ALSO

This module is part of POSIX-1003 distribution version 0.93, built on April 23, 2013. Website: http://perl.overmeer.net. The code is based on POSIX, which is released with Perl itself. See also POSIX::Util for additional functionality.

COPYRIGHTS

Copyrights 2011-2013 on the perl code and the related documentation by [Mark Overmeer]. For other contributors see ChangeLog.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See http://www.perl.com/perl/misc/Artistic.html