diff options
Diffstat (limited to 'contrib/perl5/eg/sysvipc/ipcshm')
-rw-r--r-- | contrib/perl5/eg/sysvipc/ipcshm | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/contrib/perl5/eg/sysvipc/ipcshm b/contrib/perl5/eg/sysvipc/ipcshm deleted file mode 100644 index ecc1ba4..0000000 --- a/contrib/perl5/eg/sysvipc/ipcshm +++ /dev/null @@ -1,50 +0,0 @@ -#!/usr/bin/perl -eval 'exec /usr/bin/perl -S $0 ${1+"$@"}' - if $running_under_some_shell; - -require 'sys/ipc.ph'; -require 'sys/shm.ph'; - -$| = 1; - -$mode = shift; -die "usage: ipcshm {r|s}\n" unless $mode =~ /^[rs]$/; -$send = ($mode eq "s"); - -$SIZE = 32; -$id = shmget(0x1234, $SIZE, ($send ? 0 : &IPC_CREAT) | 0644); -die "Can't get shared memory: $!\n" unless defined($id); -print "shared memory id: $id\n"; - -if ($send) { - while (<STDIN>) { - chop; - unless (shmwrite($id, pack("La*", length($_), $_), 0, $SIZE)) { - die "Can't write to shared memory: $!\n"; - } - } -} -else { - $SIG{'INT'} = $SIG{'QUIT'} = "leave"; - for (;;) { - $_ = <STDIN>; - unless (shmread($id, $_, 0, $SIZE)) { - die "Can't read shared memory: $!\n"; - } - $len = unpack("L", $_); - $message = substr($_, length(pack("L",0)), $len); - printf "[%d] %s\n", $len, $message; - } -} - -&leave; - -sub leave { - if (!$send) { - $x = shmctl($id, &IPC_RMID, 0); - if (!defined($x) || $x < 0) { - die "Can't remove shared memory: $!\n"; - } - } - exit; -} |