From 72dcef0e0ec7c1757ebe92fb5913caee99d6bc5f Mon Sep 17 00:00:00 2001 From: "Richard M. Stallman" Date: Thu, 31 Jul 1997 07:54:07 +0000 Subject: [PATCH] (current_lock_owner): Don't try to delete lock if this or another existing process owns it! --- src/filelock.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/src/filelock.c b/src/filelock.c index b79bccc65a5..6116b89fd96 100644 --- a/src/filelock.c +++ b/src/filelock.c @@ -240,17 +240,15 @@ current_lock_owner (owner, lfname) { if (owner->pid == getpid ()) ret = 2; /* We own it. */ - - if (owner->pid > 0 + else if (owner->pid > 0 && (kill (owner->pid, 0) >= 0 || errno == EPERM)) ret = 1; /* An existing process on this machine owns it. */ - /* The owner process is dead or has a strange pid (<=0), so try to zap the lockfile. */ - if (unlink (lfname) < 0) + else if (unlink (lfname) < 0) ret = -1; - - ret = 0; + else + ret = 0; } else { /* If we wanted to support the check for stale locks on remote machines, -- 2.39.2