From a1435e018bfc9919cb76b1356509ecc883767fb4 Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Sat, 10 Aug 2013 14:51:16 +0000
Subject: git-svn-id:
 svn://svn.code.sf.net/p/chibios/svn/branches/kernel_3_dev@6123
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 os/rt/include/chcond.h | 117 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 117 insertions(+)
 create mode 100644 os/rt/include/chcond.h

(limited to 'os/rt/include/chcond.h')

diff --git a/os/rt/include/chcond.h b/os/rt/include/chcond.h
new file mode 100644
index 000000000..802d59d3a
--- /dev/null
+++ b/os/rt/include/chcond.h
@@ -0,0 +1,117 @@
+/*
+    ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+                 2011,2012,2013 Giovanni Di Sirio.
+
+    This file is part of ChibiOS/RT.
+
+    ChibiOS/RT is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    ChibiOS/RT 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/*
+   Concepts and parts of this file have been contributed by Leon Woestenberg.
+ */
+
+/**
+ * @file    chcond.h
+ * @brief   Condition Variables macros and structures.
+ *
+ * @addtogroup condvars
+ * @{
+ */
+
+#ifndef _CHCOND_H_
+#define _CHCOND_H_
+
+#if CH_CFG_USE_CONDVARS || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Module constants.                                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Module pre-compile time settings.                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Derived constants and error checks.                                       */
+/*===========================================================================*/
+
+#if !CH_CFG_USE_MUTEXES
+#error "CH_CFG_USE_CONDVARS requires CH_CFG_USE_MUTEXES"
+#endif
+
+/*===========================================================================*/
+/* Module data structures and types.                                         */
+/*===========================================================================*/
+
+/**
+ * @brief   condition_variable_t structure.
+ */
+typedef struct condition_variable {
+  threads_queue_t       c_queue;            /**< @brief Condition variable
+                                                 threads queue.             */
+} condition_variable_t;
+
+/*===========================================================================*/
+/* Module macros.                                                            */
+/*===========================================================================*/
+
+/**
+ * @brief Data part of a static condition variable initializer.
+ * @details This macro should be used when statically initializing a condition
+ *          variable that is part of a bigger structure.
+ *
+ * @param[in] name      the name of the condition variable
+ */
+#define _CONDVAR_DATA(name) {_threads_queue_t_DATA(name.c_queue)}
+
+/**
+ * @brief Static condition variable initializer.
+ * @details Statically initialized condition variables require no explicit
+ *          initialization using @p chCondInit().
+ *
+ * @param[in] name      the name of the condition variable
+ */
+#define CONDVAR_DECL(name) condition_variable_t name = _CONDVAR_DATA(name)
+
+/*===========================================================================*/
+/* External declarations.                                                    */
+/*===========================================================================*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  void chCondObjectInit(condition_variable_t *cp);
+  void chCondSignal(condition_variable_t *cp);
+  void chCondSignalI(condition_variable_t *cp);
+  void chCondBroadcast(condition_variable_t *cp);
+  void chCondBroadcastI(condition_variable_t *cp);
+  msg_t chCondWait(condition_variable_t *cp);
+  msg_t chCondWaitS(condition_variable_t *cp);
+#if CH_CFG_USE_CONDVARS_TIMEOUT
+  msg_t chCondWaitTimeout(condition_variable_t *cp, systime_t time);
+  msg_t chCondWaitTimeoutS(condition_variable_t *cp, systime_t time);
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+/*===========================================================================*/
+/* Module inline functions.                                                  */
+/*===========================================================================*/
+
+#endif /* CH_CFG_USE_CONDVARS */
+
+#endif /* _CHCOND_H_ */
+
+/** @} */
-- 
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