mx_flock: Add mx_funlock_nodelete

Add function to release the lock without removing the logfile. This is useful for forked children, which inherited the lock and just need to give it up.
mariux64 · Sep 17, 2021 · 0be33f7 · 0be33f7
1 parent 2601e06
commit 0be33f7
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diff --git a/mx_flock.c b/mx_flock.c
@@ -155,6 +155,13 @@ int mx_funlock(struct mx_flock *lock)
     return res;
 }
 
+/* as above, but don't delete lock file
+ */
+void mx_funlock_nodelete(struct mx_flock *lock) {
+    _flock_close(lock);
+    _flock_free(lock);
+}
+
 void mx_flock_free(struct mx_flock *lock)
 {
     _flock_free(lock);

diff --git a/mx_flock.h b/mx_flock.h
@@ -10,6 +10,7 @@ struct mx_flock {
 
 struct mx_flock *mx_flock(int operation, char *fmt, ...);
 int mx_funlock(struct mx_flock *lock);
+void mx_funlock_nodelete(struct mx_flock *lock);
 void mx_flock_free(struct mx_flock *lock);
 
 #endif