Import in NPTL code from glibc. For further information please

consult the 'README.NPTL' file.

1 files changed, 58 insertions, 0 deletions

diff --git a/libpthread/nptl/old_pthread_cond_signal.c b/libpthread/nptl/old_pthread_cond_signal.c
new file mode 100644
index 000000000..65beb0b9d
--- /dev/null
+++ b/libpthread/nptl/old_pthread_cond_signal.c
@@ -0,0 +1,58 @@
+/* Copyright (C) 2002, 2003 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 <stdlib.h>
+#include "pthreadP.h"
+#include <atomic.h>
+#include <shlib-compat.h>
+
+
+#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_3_2)
+int
+__pthread_cond_signal_2_0 (cond)
+     pthread_cond_2_0_t *cond;
+{
+  if (cond->cond == NULL)
+    {
+      pthread_cond_t *newcond;
+
+#if LLL_MUTEX_LOCK_INITIALIZER == 0
+      newcond = (pthread_cond_t *) calloc (sizeof (pthread_cond_t), 1);
+      if (newcond == NULL)
+	return ENOMEM;
+#else
+      newcond = (pthread_cond_t *) malloc (sizeof (pthread_cond_t));
+      if (newcond == NULL)
+	return ENOMEM;
+
+      /* Initialize the condvar.  */
+      (void) pthread_cond_init (newcond, NULL);
+#endif
+
+      if (atomic_compare_and_exchange_bool_acq (&cond->cond, newcond, NULL))
+	/* Somebody else just initialized the condvar.  */
+	free (newcond);
+    }
+
+  return __pthread_cond_signal (cond->cond);
+}
+compat_symbol (libpthread, __pthread_cond_signal_2_0, pthread_cond_signal,
+	       GLIBC_2_0);
+#endif