Austin Blackstone / Mbed 2 deprecated client-lwip-lightswitch-demo-expanded

mbed client lightswitch demo

Dependencies:   mbed Socket lwip-eth lwip-sys lwip

Fork of mbed-client-classic-example-lwip by Austin Blackstone

mbed-rtos/rtos/Mail.h@11:cada08fc8a70, 2016-06-09 (annotated)

Committer:
mbedAustin
Date:
Thu Jun 09 17:08:36 2016 +0000
Revision:
11:cada08fc8a70
Commit for public Consumption

Who changed what in which revision?

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mbedAustin 11:cada08fc8a70 1 /* mbed Microcontroller Library
mbedAustin 11:cada08fc8a70 2 * Copyright (c) 2006-2012 ARM Limited
mbedAustin 11:cada08fc8a70 3 *
mbedAustin 11:cada08fc8a70 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
mbedAustin 11:cada08fc8a70 5 * of this software and associated documentation files (the "Software"), to deal
mbedAustin 11:cada08fc8a70 6 * in the Software without restriction, including without limitation the rights
mbedAustin 11:cada08fc8a70 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
mbedAustin 11:cada08fc8a70 8 * copies of the Software, and to permit persons to whom the Software is
mbedAustin 11:cada08fc8a70 9 * furnished to do so, subject to the following conditions:
mbedAustin 11:cada08fc8a70 10 *
mbedAustin 11:cada08fc8a70 11 * The above copyright notice and this permission notice shall be included in
mbedAustin 11:cada08fc8a70 12 * all copies or substantial portions of the Software.
mbedAustin 11:cada08fc8a70 13 *
mbedAustin 11:cada08fc8a70 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
mbedAustin 11:cada08fc8a70 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
mbedAustin 11:cada08fc8a70 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
mbedAustin 11:cada08fc8a70 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
mbedAustin 11:cada08fc8a70 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
mbedAustin 11:cada08fc8a70 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
mbedAustin 11:cada08fc8a70 20 * SOFTWARE.
mbedAustin 11:cada08fc8a70 21 */
mbedAustin 11:cada08fc8a70 22 #ifndef MAIL_H
mbedAustin 11:cada08fc8a70 23 #define MAIL_H
mbedAustin 11:cada08fc8a70 24
mbedAustin 11:cada08fc8a70 25 #include <stdint.h>
mbedAustin 11:cada08fc8a70 26 #include <string.h>
mbedAustin 11:cada08fc8a70 27
mbedAustin 11:cada08fc8a70 28 #include "cmsis_os.h"
mbedAustin 11:cada08fc8a70 29
mbedAustin 11:cada08fc8a70 30 namespace rtos {
mbedAustin 11:cada08fc8a70 31
mbedAustin 11:cada08fc8a70 32 /** The Mail class allow to control, send, receive, or wait for mail.
mbedAustin 11:cada08fc8a70 33 A mail is a memory block that is send to a thread or interrupt service routine.
mbedAustin 11:cada08fc8a70 34 @tparam T data type of a single message element.
mbedAustin 11:cada08fc8a70 35 @tparam queue_sz maximum number of messages in queue.
mbedAustin 11:cada08fc8a70 36 */
mbedAustin 11:cada08fc8a70 37 template<typename T, uint32_t queue_sz>
mbedAustin 11:cada08fc8a70 38 class Mail {
mbedAustin 11:cada08fc8a70 39 public:
mbedAustin 11:cada08fc8a70 40 /** Create and Initialise Mail queue. */
mbedAustin 11:cada08fc8a70 41 Mail() {
mbedAustin 11:cada08fc8a70 42 #ifdef CMSIS_OS_RTX
mbedAustin 11:cada08fc8a70 43 memset(_mail_q, 0, sizeof(_mail_q));
mbedAustin 11:cada08fc8a70 44 _mail_p[0] = _mail_q;
mbedAustin 11:cada08fc8a70 45
mbedAustin 11:cada08fc8a70 46 memset(_mail_m, 0, sizeof(_mail_m));
mbedAustin 11:cada08fc8a70 47 _mail_p[1] = _mail_m;
mbedAustin 11:cada08fc8a70 48
mbedAustin 11:cada08fc8a70 49 _mail_def.pool = _mail_p;
mbedAustin 11:cada08fc8a70 50 _mail_def.queue_sz = queue_sz;
mbedAustin 11:cada08fc8a70 51 _mail_def.item_sz = sizeof(T);
mbedAustin 11:cada08fc8a70 52 #endif
mbedAustin 11:cada08fc8a70 53 _mail_id = osMailCreate(&_mail_def, NULL);
mbedAustin 11:cada08fc8a70 54 }
mbedAustin 11:cada08fc8a70 55
mbedAustin 11:cada08fc8a70 56 /** Allocate a memory block of type T
mbedAustin 11:cada08fc8a70 57 @param millisec timeout value or 0 in case of no time-out. (default: 0).
mbedAustin 11:cada08fc8a70 58 @return pointer to memory block that can be filled with mail or NULL in case error.
mbedAustin 11:cada08fc8a70 59 */
mbedAustin 11:cada08fc8a70 60 T* alloc(uint32_t millisec=0) {
mbedAustin 11:cada08fc8a70 61 return (T*)osMailAlloc(_mail_id, millisec);
mbedAustin 11:cada08fc8a70 62 }
mbedAustin 11:cada08fc8a70 63
mbedAustin 11:cada08fc8a70 64 /** Allocate a memory block of type T and set memory block to zero.
mbedAustin 11:cada08fc8a70 65 @param millisec timeout value or 0 in case of no time-out. (default: 0).
mbedAustin 11:cada08fc8a70 66 @return pointer to memory block that can be filled with mail or NULL in case error.
mbedAustin 11:cada08fc8a70 67 */
mbedAustin 11:cada08fc8a70 68 T* calloc(uint32_t millisec=0) {
mbedAustin 11:cada08fc8a70 69 return (T*)osMailCAlloc(_mail_id, millisec);
mbedAustin 11:cada08fc8a70 70 }
mbedAustin 11:cada08fc8a70 71
mbedAustin 11:cada08fc8a70 72 /** Put a mail in the queue.
mbedAustin 11:cada08fc8a70 73 @param mptr memory block previously allocated with Mail::alloc or Mail::calloc.
mbedAustin 11:cada08fc8a70 74 @return status code that indicates the execution status of the function.
mbedAustin 11:cada08fc8a70 75 */
mbedAustin 11:cada08fc8a70 76 osStatus put(T *mptr) {
mbedAustin 11:cada08fc8a70 77 return osMailPut(_mail_id, (void*)mptr);
mbedAustin 11:cada08fc8a70 78 }
mbedAustin 11:cada08fc8a70 79
mbedAustin 11:cada08fc8a70 80 /** Get a mail from a queue.
mbedAustin 11:cada08fc8a70 81 @param millisec timeout value or 0 in case of no time-out. (default: osWaitForever).
mbedAustin 11:cada08fc8a70 82 @return event that contains mail information or error code.
mbedAustin 11:cada08fc8a70 83 */
mbedAustin 11:cada08fc8a70 84 osEvent get(uint32_t millisec=osWaitForever) {
mbedAustin 11:cada08fc8a70 85 return osMailGet(_mail_id, millisec);
mbedAustin 11:cada08fc8a70 86 }
mbedAustin 11:cada08fc8a70 87
mbedAustin 11:cada08fc8a70 88 /** Free a memory block from a mail.
mbedAustin 11:cada08fc8a70 89 @param mptr pointer to the memory block that was obtained with Mail::get.
mbedAustin 11:cada08fc8a70 90 @return status code that indicates the execution status of the function.
mbedAustin 11:cada08fc8a70 91 */
mbedAustin 11:cada08fc8a70 92 osStatus free(T *mptr) {
mbedAustin 11:cada08fc8a70 93 return osMailFree(_mail_id, (void*)mptr);
mbedAustin 11:cada08fc8a70 94 }
mbedAustin 11:cada08fc8a70 95
mbedAustin 11:cada08fc8a70 96 private:
mbedAustin 11:cada08fc8a70 97 osMailQId _mail_id;
mbedAustin 11:cada08fc8a70 98 osMailQDef_t _mail_def;
mbedAustin 11:cada08fc8a70 99 #ifdef CMSIS_OS_RTX
mbedAustin 11:cada08fc8a70 100 uint32_t _mail_q[4+(queue_sz)];
mbedAustin 11:cada08fc8a70 101 uint32_t _mail_m[3+((sizeof(T)+3)/4)*(queue_sz)];
mbedAustin 11:cada08fc8a70 102 void *_mail_p[2];
mbedAustin 11:cada08fc8a70 103 #endif
mbedAustin 11:cada08fc8a70 104 };
mbedAustin 11:cada08fc8a70 105
mbedAustin 11:cada08fc8a70 106 }
mbedAustin 11:cada08fc8a70 107
mbedAustin 11:cada08fc8a70 108 #endif
mbedAustin 11:cada08fc8a70 109