1998-07-17 Ben Elliston <bje@cygnus.com>

	* mutex.c (pthread_mutexattr_setpshared): This optional function
	is no longer supported, since we want to implement POSIX mutex
	variables using the much more efficient Win32 critical section
	primitives.  Critical section objects in Win32 cannot be shared
	between processes.
	(pthread_mutexattr_getpshared): Likewise.

1 files changed, 4 insertions, 24 deletions

diff --git a/mutex.c b/mutex.c
index a4bfd55..61add6e 100644
--- a/mutex.c
+++ b/mutex.c
@@ -106,36 +106,16 @@ pthread_mutexattr_destroy(pthread_mutexattr_t *attr)
 int
 pthread_mutexattr_setpshared(pthread_mutexattr_t *attr, int process_shared)
 {
-  /* Ensure the value for this attribute is within the legal range. */
-  if ((process_shared != PTHREAD_PROCESS_PRIVATE) ||
-      (process_shared != PTHREAD_PROCESS_SHARED))
-    {
-      return EINVAL;
-    }
-
-  /* Ensure attr points to a valid attribute object. */
-  if (is_attr(attr) != 0)
-    {
-      return EINVAL;
-    }
-
-  /* Everything is okay. */
-  (_pthread_mutexattr_t *) (attr->ptr)->proc_shared = process_shared;
-  return 0;
+  /* This function is not supported. */
+  return ENOSYS;
 }
 
 int
 pthread_mutexattr_getpshared(const pthread_mutexattr_t *attr,
 			     int *process_shared)
 {
-  if (is_attr(attr) != 0)
-    {
-      return EINVAL;
-    }
-
-  /* Everything is okay. */
-  *process_shared = (_pthread_mutexattr_t *) (attr->ptr)->proc_shared;
-  return 0;
+  /* This function is not supported. */
+  return ENOSYS;
 }
   
 int