Tweak mutex order for SD

[bacula/bacula] / bacula / src / lib / lockmgr.c

diff --git a/bacula/src/lib/lockmgr.c b/bacula/src/lib/lockmgr.c
index 9315c4fb103de6a38e966b7735ac4eec2857a09a..c2f7b875cb908df4d2b9987cd6db6555cafcc26a 100644 (file)
--- a/bacula/src/lib/lockmgr.c
+++ b/bacula/src/lib/lockmgr.c
@@ -37,7 +37,7 @@
     V(mutex);
 
  use:
-    bthread_mutex_t mutex = BTHREAD_MUTEX_PRIORITY_1;
+    bthread_mutex_t mutex = BTHREAD_MUTEX_PRIORITY(1);
     P(mutex);
     ...
     V(mutex);
@@ -283,9 +283,10 @@ public:
       fprintf(fp, "threadid=%p max=%i current=%i\n", 
               (void *)thread_id, max, current);
       for(int i=0; i<=current; i++) {
-         fprintf(fp, "   lock=%p state=%s %s:%i\n", 
+         fprintf(fp, "   lock=%p state=%s priority=%i %s:%i\n", 
                  lock_list[i].lock, 
                  (lock_list[i].state=='W')?"Wanted ":"Granted",
+                 lock_list[i].priority,
                  lock_list[i].file, lock_list[i].line);
       } 
    }
@@ -302,10 +303,11 @@ public:
     * Call before a lock operation (mark mutex as WANTED)
     */
    virtual void pre_P(void *m, int priority, 
-                      const char *f="*unknown*", int l=0) {
+                      const char *f="*unknown*", int l=0) 
+   {
+      int max_prio = max_priority;
       ASSERT_p(current < LMGR_MAX_LOCK, f, l);
       ASSERT_p(current >= -1, f, l);
-      ASSERT_p(!priority || priority >= max_priority, f, l);
       lmgr_p(&mutex);
       {
          current++;
@@ -319,6 +321,7 @@ public:
          max_priority = MAX(priority, max_priority);
       }
       lmgr_v(&mutex);
+      ASSERT_p(!priority || priority >= max_prio, f, l);
    }
 
    /*
@@ -910,10 +913,7 @@ void dbg_print_lock(FILE *fp)
 
 #include "lockmgr.h"
 #define BTHREAD_MUTEX_NO_PRIORITY      {PTHREAD_MUTEX_INITIALIZER, 0}
-#define BTHREAD_MUTEX_PRIORITY_1       {PTHREAD_MUTEX_INITIALIZER, 1}
-#define BTHREAD_MUTEX_PRIORITY_2       {PTHREAD_MUTEX_INITIALIZER, 2}
-#define BTHREAD_MUTEX_PRIORITY_3       {PTHREAD_MUTEX_INITIALIZER, 3}
-#define BTHREAD_MUTEX_PRIORITY_4       {PTHREAD_MUTEX_INITIALIZER, 4}
+#define BTHREAD_MUTEX_PRIORITY(p)      {PTHREAD_MUTEX_INITIALIZER, p}
 #undef P
 #undef V
 #define P(x) bthread_mutex_lock_p(&(x), __FILE__, __LINE__)
@@ -926,9 +926,9 @@ bthread_mutex_t mutex3 = BTHREAD_MUTEX_NO_PRIORITY;
 bthread_mutex_t mutex4 = BTHREAD_MUTEX_NO_PRIORITY;
 bthread_mutex_t mutex5 = BTHREAD_MUTEX_NO_PRIORITY;
 bthread_mutex_t mutex6 = BTHREAD_MUTEX_NO_PRIORITY;
-bthread_mutex_t mutex_p1 = BTHREAD_MUTEX_PRIORITY_1;
-bthread_mutex_t mutex_p2 = BTHREAD_MUTEX_PRIORITY_2;
-bthread_mutex_t mutex_p3 = BTHREAD_MUTEX_PRIORITY_3;
+bthread_mutex_t mutex_p1 = BTHREAD_MUTEX_PRIORITY(1);
+bthread_mutex_t mutex_p2 = BTHREAD_MUTEX_PRIORITY(2);
+bthread_mutex_t mutex_p3 = BTHREAD_MUTEX_PRIORITY(3);
 static const char *my_prog;
 
 void *self_lock(void *temp)