1 files changed, 91 insertions, 0 deletions
diff --git a/os/kernel/include/chcond.h b/os/kernel/include/chcond.h
new file mode 100644
index 000000000..a84fa3bdb
--- /dev/null
+++ b/os/kernel/include/chcond.h
@@ -0,0 +1,91 @@
+/*
+    ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 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 are contributed by and Copyright (C) 2008
+   of Leon Woestenberg.
+ */
+
+/**
+ * @file    condvars.h
+ * @brief   Condition Variables macros and structures.
+ *
+ * @addtogroup condvars
+ * @{
+ */
+
+#ifndef _CONDVARS_H_
+#define _CONDVARS_H_
+
+#if CH_USE_CONDVARS
+
+/*
+ * Module dependencies check.
+ */
+#if !CH_USE_MUTEXES
+#error "CH_USE_CONDVARS requires CH_USE_MUTEXES"
+#endif
+
+/**
+ * @brief   CondVar structure.
+ */
+typedef struct CondVar {
+  ThreadsQueue          c_queue;        /**< @brief CondVar threads queue.*/
+} CondVar;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  void chCondInit(CondVar *cp);
+  void chCondSignal(CondVar *cp);
+  void chCondSignalI(CondVar *cp);
+  void chCondBroadcast(CondVar *cp);
+  void chCondBroadcastI(CondVar *cp);
+  msg_t chCondWait(CondVar *cp);
+  msg_t chCondWaitS(CondVar *cp);
+#if CH_USE_CONDVARS_TIMEOUT
+  msg_t chCondWaitTimeout(CondVar *cp, systime_t time);
+  msg_t chCondWaitTimeoutS(CondVar *cp, systime_t time);
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+/**
+ * @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) {_THREADSQUEUE_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) CondVar name = _CONDVAR_DATA(name)
+
+#endif /* CH_USE_CONDVARS */
+
+#endif /* _CONDVARS_H_ */
+
+/** @} */