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| author | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2013-08-10 14:51:16 +0000 |
|---|---|---|
| committer | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2013-08-10 14:51:16 +0000 |
| commit | a1435e018bfc9919cb76b1356509ecc883767fb4 (patch) | |
| tree | b82f74e9eee194c8b04ba4a0dd0b88810813caf8 /os/rt/include/chcond.h | |
| parent | eb7a1a15b23341693864c6fc13ac5eab5c1d6122 (diff) | |
| download | ChibiOS-a1435e018bfc9919cb76b1356509ecc883767fb4.tar.gz ChibiOS-a1435e018bfc9919cb76b1356509ecc883767fb4.tar.bz2 ChibiOS-a1435e018bfc9919cb76b1356509ecc883767fb4.zip | |
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/kernel_3_dev@6123 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/rt/include/chcond.h')
| -rw-r--r-- | os/rt/include/chcond.h | 117 |
1 files changed, 117 insertions, 0 deletions
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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