(priority_min): On Solaris (with STHREADS), don't return priority of 0 because ::pthread_attr_setschedparam () will refuse to use it (with EINVAL). So, bump priority of 0 up to 1.

1 files changed, 8 insertions, 2 deletions

diff --git a/ace/Sched_Params.cpp b/ace/Sched_Params.cpp
index adca11a096f..35b7bcdf5cf 100644
--- a/ace/Sched_Params.cpp
+++ b/ace/Sched_Params.cpp
@@ -63,11 +63,17 @@ ACE_Sched_Params::priority_min (const Policy policy,
       // pcinfo.pc_clinfo)->ts_maxupri.  The minimum priority is just
       // the negative of that.
 
-      return -((tsinfo_t *) pcinfo.pc_clinfo)->ts_maxupri;
+      int priority = -((tsinfo_t *) pcinfo.pc_clinfo)->ts_maxupri;
+
+      // Don't return priority of 0, because that can't be used with
+      // ::pthread_attr_setschedparam on Solaris 2.5.1.
+      return priority == 0 ? 1 : 0;
     }
   else
     {
-      return 0;
+      // Don't return priority of 0, because that can't be used with
+      // ::pthread_attr_setschedparam on Solaris 2.5.1.
+      return 1;
     }
 #elif defined (ACE_HAS_DCETHREADS) || defined(ACE_HAS_PTHREADS) && !defined(ACE_LACKS_SETSCHED)