libpthread/nptl: core of the "Native Posix Threading Library" for uClibc

targetting arm,sh,i386,mips,sparc for now

Signed-off-by: Austin Foxley <austinf@cetoncorp.com>

1 files changed, 67 insertions, 0 deletions

diff --git a/libpthread/nptl/semaphoreP.h b/libpthread/nptl/semaphoreP.h
new file mode 100644
index 000000000..d14ea92c7
--- /dev/null
+++ b/libpthread/nptl/semaphoreP.h
@@ -0,0 +1,67 @@
+/* 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 <semaphore.h>
+#include "pthreadP.h"
+
+
+/* Mount point of the shared memory filesystem.  */
+struct mountpoint_info
+{
+  char *dir;
+  size_t dirlen;
+};
+
+/* Keeping track of currently used mappings.  */
+struct inuse_sem
+{
+  dev_t dev;
+  ino_t ino;
+  int refcnt;
+  sem_t *sem;
+  char name[0];
+};
+
+
+/* Variables used in multiple interfaces.  */
+extern struct mountpoint_info mountpoint attribute_hidden;
+
+extern pthread_once_t __namedsem_once attribute_hidden;
+
+/* The search tree for existing mappings.  */
+extern void *__sem_mappings attribute_hidden;
+
+/* Lock to protect the search tree.  */
+extern lll_lock_t __sem_mappings_lock;
+
+
+/* Initializer for mountpoint.  */
+extern void __where_is_shmfs (void) attribute_hidden;
+
+/* Comparison function for search in tree with existing mappings.  */
+extern int __sem_search (const void *a, const void *b) attribute_hidden;
+
+
+/* Prototypes of functions with multiple interfaces.  */
+extern int __new_sem_init (sem_t *sem, int pshared, unsigned int value);
+extern int __new_sem_destroy (sem_t *sem);
+extern int __new_sem_post (sem_t *sem);
+extern int __new_sem_wait (sem_t *sem);
+extern int __new_sem_trywait (sem_t *sem);
+extern int __new_sem_getvalue (sem_t *sem, int *sval);