Changeset 17069

Timestamp:

Mar 19, 2008, 2:49:00 PM (18 years ago)

Author:

eugene

Message:

block against other threads setting the file

File:

• trunk/Ohana/src/opihi/lib.shell/gprint.c (modified) (3 diffs)

trunk/Ohana/src/opihi/lib.shell/gprint.c

@@ -152 +152 @@
 }
 
+static pthread_mutex_t set_file_mutex = PTHREAD_MUTEX_INITIALIZER;
+
 void gprintSetFileAllThreads (gpDest dest, char *filename) {
 
   int i;
+
+  /* need to use a mutex to prevent two threads from initing simultaneously */
+  pthread_mutex_lock (&set_file_mutex);
 
   for (i = 0; i < Nstreams; i++) {
@@ -160 +165 @@
     gprintSetFile (&streams[i], dest, filename);
   }
+
+  pthread_mutex_unlock (&set_file_mutex);
   return;
 }
@@ -168 +175 @@
   stream = gprintGetStream (dest);
 
+  /* need to use a mutex to prevent two threads from initing simultaneously */
+  pthread_mutex_lock (&set_file_mutex);
+
   gprintSetFile (stream, dest, filename);
+
+  pthread_mutex_unlock (&set_file_mutex);
   return;
 }