grep: move sha1-reading mutex into low-level code

diff --git a/grep.h b/grep.h
index 3653bb333c04dc7569beef4943ad3ae88e02a667..4f1b0251b0748e7e48ef73c3cae4ee704d87b96b 100644 (file)
--- a/grep.h
+++ b/grep.h
@@ -139,6 +139,23 @@ extern int grep_threads_ok(const struct grep_opt *opt);
  */
 extern int grep_use_locks;
 extern pthread_mutex_t grep_attr_mutex;
+extern pthread_mutex_t grep_read_mutex;
+
+static inline void grep_read_lock(void)
+{
+       if (grep_use_locks)
+               pthread_mutex_lock(&grep_read_mutex);
+}
+
+static inline void grep_read_unlock(void)
+{
+       if (grep_use_locks)
+               pthread_mutex_unlock(&grep_read_mutex);
+}
+
+#else
+#define grep_read_lock()
+#define grep_read_unlock()
 #endif
 
 #endif