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Transaction.h
00001 /* mbed Microcontroller Library 00002 * Copyright (c) 2015 ARM Limited 00003 * 00004 * Licensed under the Apache License, Version 2.0 (the "License"); 00005 * you may not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http://www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 #ifndef MBED_TRANSACTION_H 00017 #define MBED_TRANSACTION_H 00018 00019 #include "platform/platform.h" 00020 #include "platform/FunctionPointer.h" 00021 00022 namespace mbed { 00023 /** \addtogroup platform */ 00024 /** @{*/ 00025 /** 00026 * \defgroup platform_Transaction Transaction class 00027 * @{ 00028 */ 00029 00030 /** Transaction structure 00031 */ 00032 typedef struct { 00033 void *tx_buffer; /**< Tx buffer */ 00034 size_t tx_length; /**< Length of Tx buffer*/ 00035 void *rx_buffer; /**< Rx buffer */ 00036 size_t rx_length; /**< Length of Rx buffer */ 00037 uint32_t event; /**< Event for a transaction */ 00038 event_callback_t callback; /**< User's callback */ 00039 uint8_t width; /**< Buffer's word width (8, 16, 32, 64) */ 00040 } transaction_t; 00041 00042 /** Transaction class defines a transaction. 00043 * 00044 * @note Synchronization level: Not protected 00045 */ 00046 template<typename Class> 00047 class Transaction { 00048 public: 00049 Transaction(Class *tpointer, const transaction_t& transaction) : _obj(tpointer), _data(transaction) { 00050 } 00051 00052 Transaction() : _obj(), _data() { 00053 } 00054 00055 ~Transaction() { 00056 } 00057 00058 /** Get object's instance for the transaction 00059 * 00060 * @return The object which was stored 00061 */ 00062 Class* get_object() { 00063 return _obj; 00064 } 00065 00066 /** Get the transaction 00067 * 00068 * @return The transaction which was stored 00069 */ 00070 transaction_t* get_transaction() { 00071 return &_data; 00072 } 00073 00074 private: 00075 Class* _obj; 00076 transaction_t _data; 00077 }; 00078 /**@}*/ 00079 00080 /**@}*/ 00081 } 00082 00083 #endif
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