Pierre Provent / USBHost

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependents:   TEST_USB_Nucleo_F429ZI Essais_USB_Nucleo_F429ZI SID_V3_Nucleo_F429ZI SID_V4_Nucleo_F429ZI_copy

mbed-rtos/rtos/Queue.h@0:77ca32e8e04e, 2020-09-25 (annotated)

Committer:
pierreprovent
Date:
Fri Sep 25 10:17:49 2020 +0000
Revision:
0:77ca32e8e04e
Programme acquisition en enregistrement sur clef USB carte Nucleo F429ZI cours ELE118 Cnam

Who changed what in which revision?

UserRevisionLine numberNew contents of line
pierreprovent 0:77ca32e8e04e 1 /* mbed Microcontroller Library
pierreprovent 0:77ca32e8e04e 2 * Copyright (c) 2006-2012 ARM Limited
pierreprovent 0:77ca32e8e04e 3 *
pierreprovent 0:77ca32e8e04e 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
pierreprovent 0:77ca32e8e04e 5 * of this software and associated documentation files (the "Software"), to deal
pierreprovent 0:77ca32e8e04e 6 * in the Software without restriction, including without limitation the rights
pierreprovent 0:77ca32e8e04e 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
pierreprovent 0:77ca32e8e04e 8 * copies of the Software, and to permit persons to whom the Software is
pierreprovent 0:77ca32e8e04e 9 * furnished to do so, subject to the following conditions:
pierreprovent 0:77ca32e8e04e 10 *
pierreprovent 0:77ca32e8e04e 11 * The above copyright notice and this permission notice shall be included in
pierreprovent 0:77ca32e8e04e 12 * all copies or substantial portions of the Software.
pierreprovent 0:77ca32e8e04e 13 *
pierreprovent 0:77ca32e8e04e 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
pierreprovent 0:77ca32e8e04e 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
pierreprovent 0:77ca32e8e04e 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
pierreprovent 0:77ca32e8e04e 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
pierreprovent 0:77ca32e8e04e 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
pierreprovent 0:77ca32e8e04e 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
pierreprovent 0:77ca32e8e04e 20 * SOFTWARE.
pierreprovent 0:77ca32e8e04e 21 */
pierreprovent 0:77ca32e8e04e 22 #ifndef QUEUE_H
pierreprovent 0:77ca32e8e04e 23 #define QUEUE_H
pierreprovent 0:77ca32e8e04e 24
pierreprovent 0:77ca32e8e04e 25 #include <stdint.h>
pierreprovent 0:77ca32e8e04e 26 #include <string.h>
pierreprovent 0:77ca32e8e04e 27
pierreprovent 0:77ca32e8e04e 28 #include "cmsis_os.h"
pierreprovent 0:77ca32e8e04e 29 #include "platform/mbed_error.h"
pierreprovent 0:77ca32e8e04e 30
pierreprovent 0:77ca32e8e04e 31 namespace rtos {
pierreprovent 0:77ca32e8e04e 32 /** \addtogroup rtos */
pierreprovent 0:77ca32e8e04e 33 /** @{*/
pierreprovent 0:77ca32e8e04e 34
pierreprovent 0:77ca32e8e04e 35 /** The Queue class allow to control, send, receive, or wait for messages.
pierreprovent 0:77ca32e8e04e 36 A message can be a integer or pointer value to a certain type T that is send
pierreprovent 0:77ca32e8e04e 37 to a thread or interrupt service routine.
pierreprovent 0:77ca32e8e04e 38 @tparam T data type of a single message element.
pierreprovent 0:77ca32e8e04e 39 @tparam queue_sz maximum number of messages in queue.
pierreprovent 0:77ca32e8e04e 40 */
pierreprovent 0:77ca32e8e04e 41 template<typename T, uint32_t queue_sz>
pierreprovent 0:77ca32e8e04e 42 class Queue {
pierreprovent 0:77ca32e8e04e 43 public:
pierreprovent 0:77ca32e8e04e 44 /** Create and initialise a message Queue. */
pierreprovent 0:77ca32e8e04e 45 Queue() {
pierreprovent 0:77ca32e8e04e 46 #ifdef CMSIS_OS_RTX
pierreprovent 0:77ca32e8e04e 47 memset(_queue_q, 0, sizeof(_queue_q));
pierreprovent 0:77ca32e8e04e 48 _queue_def.pool = _queue_q;
pierreprovent 0:77ca32e8e04e 49 _queue_def.queue_sz = queue_sz;
pierreprovent 0:77ca32e8e04e 50 #endif
pierreprovent 0:77ca32e8e04e 51 _queue_id = osMessageCreate(&_queue_def, NULL);
pierreprovent 0:77ca32e8e04e 52 if (_queue_id == NULL) {
pierreprovent 0:77ca32e8e04e 53 error("Error initialising the queue object\n");
pierreprovent 0:77ca32e8e04e 54 }
pierreprovent 0:77ca32e8e04e 55 }
pierreprovent 0:77ca32e8e04e 56
pierreprovent 0:77ca32e8e04e 57 /** Put a message in a Queue.
pierreprovent 0:77ca32e8e04e 58 @param data message pointer.
pierreprovent 0:77ca32e8e04e 59 @param millisec timeout value or 0 in case of no time-out. (default: 0)
pierreprovent 0:77ca32e8e04e 60 @return status code that indicates the execution status of the function.
pierreprovent 0:77ca32e8e04e 61 */
pierreprovent 0:77ca32e8e04e 62 osStatus put(T* data, uint32_t millisec=0) {
pierreprovent 0:77ca32e8e04e 63 return osMessagePut(_queue_id, (uint32_t)data, millisec);
pierreprovent 0:77ca32e8e04e 64 }
pierreprovent 0:77ca32e8e04e 65
pierreprovent 0:77ca32e8e04e 66 /** Get a message or Wait for a message from a Queue.
pierreprovent 0:77ca32e8e04e 67 @param millisec timeout value or 0 in case of no time-out. (default: osWaitForever).
pierreprovent 0:77ca32e8e04e 68 @return event information that includes the message and the status code.
pierreprovent 0:77ca32e8e04e 69 */
pierreprovent 0:77ca32e8e04e 70 osEvent get(uint32_t millisec=osWaitForever) {
pierreprovent 0:77ca32e8e04e 71 return osMessageGet(_queue_id, millisec);
pierreprovent 0:77ca32e8e04e 72 }
pierreprovent 0:77ca32e8e04e 73
pierreprovent 0:77ca32e8e04e 74 private:
pierreprovent 0:77ca32e8e04e 75 osMessageQId _queue_id;
pierreprovent 0:77ca32e8e04e 76 osMessageQDef_t _queue_def;
pierreprovent 0:77ca32e8e04e 77 #ifdef CMSIS_OS_RTX
pierreprovent 0:77ca32e8e04e 78 uint32_t _queue_q[4+(queue_sz)];
pierreprovent 0:77ca32e8e04e 79 #endif
pierreprovent 0:77ca32e8e04e 80 };
pierreprovent 0:77ca32e8e04e 81
pierreprovent 0:77ca32e8e04e 82 }
pierreprovent 0:77ca32e8e04e 83 #endif
pierreprovent 0:77ca32e8e04e 84
pierreprovent 0:77ca32e8e04e 85 /** @}*/