1 files changed, 49 insertions, 0 deletions
diff --git a/posix_api/psx_rwlock_report/rwlock_attr_report.c b/posix_api/psx_rwlock_report/rwlock_attr_report.c
new file mode 100644
index 0000000..2ec7067
--- /dev/null
+++ b/posix_api/psx_rwlock_report/rwlock_attr_report.c
@@ -0,0 +1,49 @@
+/*
+ *  Program to print default POSIX rwlock attributes
+ */
+
+/*
+ * Copyright 2018 Joel Sherrill (joel@rtems.org)
+ *
+ * This file's license is 2-clause BSD as in this distribution's LICENSE.2 file.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <inttypes.h>
+#include <pthread.h>
+#include <assert.h>
+
+static void print_shared(pthread_rwlockattr_t *attr)
+{
+  int   rc;
+  int   shared;
+  char *s;
+
+  rc = pthread_rwlockattr_getpshared( attr, &shared );
+  assert( rc == 0 );
+
+  switch ( shared ) {
+    case PTHREAD_PROCESS_PRIVATE: s = "PTHREAD_PROCESS_PRIVATE"; break;
+    case PTHREAD_PROCESS_SHARED:  s = "PTHREAD_PROCESS_SHARED"; break;
+    default:                      s = "UNKNOWN"; break;
+  }
+
+  printf( "Process shared: %s\n", s );
+}
+
+int main()
+{
+  pthread_rwlockattr_t  attr;
+  int                  rc;
+  
+  puts( "*** POSIX RWLock Default Attributes Report ***" );
+
+  rc = pthread_rwlockattr_init( &attr );
+  assert( rc == 0 );
+
+  print_shared( &attr );
+
+  puts( "*** END OF POSIX RWLock Default Attributes Report ***" );
+  exit( 0 );
+}