93 lines
1.7 KiB
Perl
93 lines
1.7 KiB
Perl
#!/usr/bin/perl
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#
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# Copyright 1995. Michael Veksler.
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#
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$IPC_RMID=0;
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$USER=$ENV{USER};
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do open_pipe(IPCS,"ipcs");
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#
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# The following part is OS dependant, it works under linux only.
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# To make it work under other OS
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# You should fill in @shm, @sem, @msq lists, with the relevent IPC
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# keys.
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#
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# This code was written to be as much as possible generic, but...
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# It works for Linux and ALPHA. I had no BSD machine to test it.
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# (As I remember, AIX will work also).
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while(<IPCS>) {
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split;
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# try to find out the IPC-ID, assume it is the first number.
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foreach (@_) {
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$_ ne int($_) && next; # not a decimal number
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$num=$_;
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last;
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}
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if (/mem/i .. /^\s*$/ ) {
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index($_,$USER)>=0 || next;
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push(@shm,$num);
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}
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if (/sem/i .. /^\s*$/ ) {
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index($_,$USER)>=0 || next;
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push(@sem,$num);
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}
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if (/mes/i .. /^\s*$/ ) {
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index($_,$USER)>=0 || next;
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push(@msq,$num);
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}
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}
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#
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# This is the end of OS dependant code.
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#
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@shm && print "shmid ", join(":",@shm),"\n";
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@sem && print "semid ", join(":",@sem),"\n";
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@msq && print "msqid ", join(":",@msq),"\n";
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foreach (@shm) {
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shmctl($_, $IPC_RMID,0);
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}
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foreach (@sem) {
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semctl($_, 0, $IPC_RMID,0);
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}
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foreach (@msq) {
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msgctl($_, $IPC_RMID,0);
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}
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exit(0);
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sub open_pipe {
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local($pid);
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local($handle,@params)=@_;
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pipe($handle,WRITE) || die "can't pipe";
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$pid=fork();
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die "can't fork" if ($pid<0);
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if ($pid>0) {
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# whe are in the parent
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close(WRITE);
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waitpid($pid,0) || print "$params[0] exits status=$? ",$? >> 8, "\n";
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} else {
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# we are in the son.
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open(STDOUT,">&WRITE");
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open(STDERR, ">&WRITE");
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close($handle);
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close(WRITE);
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exec(@params);
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exit(-1);
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}
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}
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