Nicolas Borla
BBR 1 Ebene
Diff: mbed-os/rtos/RtosTimer.h
- Revision:
- 0:fbdae7e6d805
diff -r 000000000000 -r fbdae7e6d805 mbed-os/rtos/RtosTimer.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os/rtos/RtosTimer.h Mon May 14 11:29:06 2018 +0000
@@ -0,0 +1,188 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2012 ARM Limited
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef RTOS_TIMER_H
+#define RTOS_TIMER_H
+
+#include <stdint.h>
+#include "cmsis_os2.h"
+#include "mbed_rtos_storage.h"
+#include "platform/Callback.h"
+#include "platform/NonCopyable.h"
+#include "platform/mbed_toolchain.h"
+#include "mbed_rtos1_types.h"
+
+namespace rtos {
+/** \addtogroup rtos */
+/** @{*/
+/**
+ * \defgroup rtos_RtosTimer RtosTimer class
+ * @{
+ */
+
+/** The RtosTimer class allow creating and and controlling of timer functions in the system.
+ A timer function is called when a time period expires whereby both on-shot and
+ periodic timers are possible. A timer can be started, restarted, or stopped.
+
+ Timers are handled in the thread osTimerThread.
+ Callback functions run under control of this thread and may use CMSIS-RTOS API calls.
+
+ @deprecated
+ The RtosTimer has been superseded by the EventQueue. The RtosTimer and EventQueue duplicate
+ the functionality of timing events outside of interrupt context, however the EventQueue
+ has additional features to handle deferring other events to multiple contexts.
+
+ For an example, the following code shows a simple use of the RtosTimer:
+ @code
+ DigitalOut led(LED1);
+ void blink() {
+ led = !led;
+ }
+
+ RtosTimer timer(&blink);
+ int main() {
+ timer.start(1000); // call blink every 1s
+ wait_ms(5000);
+ timer.stop(); // stop after 5s
+ }
+ @endcode
+
+ This is the above example rewritten to use the EventQueue:
+ @code
+ DigitalOut led(LED1);
+ void blink() {
+ led = !led;
+ }
+
+ EventQueue queue(4*EVENTS_EVENT_SIZE);
+ int main() {
+ int blink_id = queue.call_every(1000, &blink); // call blink every 1s
+ queue.dispatch(5000);
+ queue.cancel(blink_id); // stop after 5s
+ }
+ @endcode
+
+ @note
+ Memory considerations: The timer control structures will be created on current thread's stack, both for the mbed OS
+ and underlying RTOS objects (static or dynamic RTOS memory pools are not being used).
+*/
+class RtosTimer : private mbed::NonCopyable<RtosTimer> {
+public:
+ /** Create timer.
+ @param func function to be executed by this timer.
+ @param type osTimerOnce for one-shot or osTimerPeriodic for periodic behaviour. (default: osTimerPeriodic)
+ @param argument argument to the timer call back function. (default: NULL)
+ @deprecated Replaced with RtosTimer(Callback<void()>, os_timer_type)
+ @deprecated
+ The RtosTimer has been superseded by the EventQueue. See RtosTimer.h for more details
+
+ @note You cannot call this function from ISR context.
+ */
+ MBED_DEPRECATED_SINCE("mbed-os-5.1",
+ "Replaced with RtosTimer(Callback<void()>, os_timer_type)")
+ MBED_DEPRECATED_SINCE("mbed-os-5.2",
+ "The RtosTimer has been superseded by the EventQueue. See RtosTimer.h for more details")
+ RtosTimer(void (*func)(void const *argument), os_timer_type type=osTimerPeriodic, void *argument=NULL) {
+ constructor(mbed::callback((void (*)(void *))func, argument), type);
+ }
+
+ /** Create timer.
+ @param func function to be executed by this timer.
+ @param type osTimerOnce for one-shot or osTimerPeriodic for periodic behaviour. (default: osTimerPeriodic)
+ @deprecated
+ The RtosTimer has been superseded by the EventQueue. See RtosTimer.h for more details
+
+ @note You cannot call this function from ISR context.
+ */
+ MBED_DEPRECATED_SINCE("mbed-os-5.2",
+ "The RtosTimer has been superseded by the EventQueue. See RtosTimer.h for more details")
+ RtosTimer(mbed::Callback<void()> func, os_timer_type type=osTimerPeriodic) {
+ constructor(func, type);
+ }
+
+ /** Create timer.
+ @param obj pointer to the object to call the member function on.
+ @param method member function to be executed by this timer.
+ @param type osTimerOnce for one-shot or osTimerPeriodic for periodic behaviour. (default: osTimerPeriodic)
+ @deprecated
+ The RtosTimer constructor does not support cv-qualifiers. Replaced by
+ RtosTimer(callback(obj, method), os_timer_type).
+ @deprecated
+ The RtosTimer has been superseded by the EventQueue. See RtosTimer.h for more details
+
+ @note You cannot call this function from ISR context.
+ */
+ template <typename T, typename M>
+ MBED_DEPRECATED_SINCE("mbed-os-5.1",
+ "The RtosTimer constructor does not support cv-qualifiers. Replaced by "
+ "RtosTimer(callback(obj, method), os_timer_type).")
+ MBED_DEPRECATED_SINCE("mbed-os-5.2",
+ "The RtosTimer has been superseded by the EventQueue. See RtosTimer.h for more details")
+ RtosTimer(T *obj, M method, os_timer_type type=osTimerPeriodic) {
+ constructor(mbed::callback(obj, method), type);
+ }
+
+ /** Stop the timer.
+ @return status code that indicates the execution status of the function:
+ @a osOK the timer has been stopped.
+ @a osErrorISR @a stop cannot be called from interrupt service routines.
+ @a osErrorParameter internal error.
+ @a osErrorResource the timer is not running.
+
+ @note You cannot call this function from ISR context.
+ */
+ osStatus stop(void);
+
+ /** Start or restart the timer.
+ @param millisec non-zero value of the timer.
+ @return status code that indicates the execution status of the function:
+ @a osOK the timer has been started or restarted.
+ @a osErrorISR @a start cannot be called from interrupt service routines.
+ @a osErrorParameter internal error or incorrect parameter value.
+ @a osErrorResource internal error (the timer is in an invalid timer state).
+
+ @note You cannot call this function from ISR context.
+ */
+ osStatus start(uint32_t millisec);
+
+ /** RtosTimer destructor
+ *
+ * @note You cannot call this function from ISR context.
+ */
+ ~RtosTimer();
+
+private:
+ // Required to share definitions without
+ // delegated constructors
+ void constructor(mbed::Callback<void()> func, os_timer_type type);
+
+ osTimerId_t _id;
+ mbed_rtos_storage_timer_t _obj_mem;
+ mbed::Callback<void()> _function;
+};
+/** @}*/
+/** @}*/
+
+}
+
+#endif
+
+