kes Experiment with allowing multiple read jobs.

[bacula/bacula] / bacula / src / stored / lock.c

diff --git a/bacula/src/stored/lock.c b/bacula/src/stored/lock.c
index a52ff4e5e369ba9432362c3d28ad79ab96f95776..647dd19dcf01f25f44b2e34c6ec072ebcdfc6efc 100644 (file)
--- a/bacula/src/stored/lock.c
+++ b/bacula/src/stored/lock.c
@@ -1,7 +1,7 @@
 /*
    Bacula® - The Network Backup Solution
 
-   Copyright (C) 2000-2007 Free Software Foundation Europe e.V.
+   Copyright (C) 2000-2008 Free Software Foundation Europe e.V.
 
    The main author of Bacula is Kern Sibbald, with contributions from
    many others, a complete list can be found in the file AUTHORS.
@@ -88,13 +88,14 @@ const int dbglvl = 500;
  *   DEVICE::dlock()   does P(m_mutex)     (in dev.h)
  *   DEVICE::dunlock() does V(m_mutex)
  *
- *   DEVICE::r_dlock() does recursive locking
+ *   DEVICE::r_dlock() allows locking the device when this thread
+                         already has the device blocked.
  *                    dlock()
  *                    if blocked and not same thread that locked
  *                       pthread_cond_wait
  *                    leaves device locked 
  *
- *   DEVICE::r_dunlock()
+ *   DEVICE::r_dunlock() unlocks but does not unblock
  *                    same as dunlock();
  *
  *   DEVICE::dblock(why)  does