Import in NPTL code from glibc. For further information please

consult the 'README.NPTL' file.

1 files changed, 81 insertions, 0 deletions

diff --git a/libpthread/nptl/pthread_getschedparam.c b/libpthread/nptl/pthread_getschedparam.c
new file mode 100644
index 000000000..434d86777
--- /dev/null
+++ b/libpthread/nptl/pthread_getschedparam.c
@@ -0,0 +1,81 @@
+/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <errno.h>
+#include <string.h>
+#include "pthreadP.h"
+#include <lowlevellock.h>
+
+
+int
+__pthread_getschedparam (threadid, policy, param)
+     pthread_t threadid;
+     int *policy;
+     struct sched_param *param;
+{
+  struct pthread *pd = (struct pthread *) threadid;
+
+  /* Make sure the descriptor is valid.  */
+  if (INVALID_TD_P (pd))
+    /* Not a valid thread handle.  */
+    return ESRCH;
+
+  int result = 0;
+
+  /* We have to handle cancellation in the following code since we are
+     locking another threads descriptor.  */
+  pthread_cleanup_push ((void (*) (void *)) lll_unlock_wake_cb, &pd->lock);
+
+  lll_lock (pd->lock);
+
+  /* The library is responsible for maintaining the values at all
+     times.  If the user uses a interface other than
+     pthread_setschedparam to modify the scheduler setting it is not
+     the library's problem.  In case the descriptor's values have
+     not yet been retrieved do it now.  */
+  if ((pd->flags & ATTR_FLAG_SCHED_SET) == 0)
+    {
+      if (__sched_getparam (pd->tid, &pd->schedparam) != 0)
+	result = 1;
+      else
+	pd->flags |= ATTR_FLAG_SCHED_SET;
+    }
+
+  if ((pd->flags & ATTR_FLAG_POLICY_SET) == 0)
+    {
+      pd->schedpolicy = __sched_getscheduler (pd->tid);
+      if (pd->schedpolicy == -1)
+	result = 1;
+      else
+	pd->flags |= ATTR_FLAG_POLICY_SET;
+    }
+
+  if (result == 0)
+    {
+      *policy = pd->schedpolicy;
+      memcpy (param, &pd->schedparam, sizeof (struct sched_param));
+    }
+
+  lll_unlock (pd->lock);
+
+  pthread_cleanup_pop (0);
+
+  return result;
+}
+strong_alias (__pthread_getschedparam, pthread_getschedparam)