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mbed/Transaction.h 1.86 KB
f7c9a8e1   jdenecha   Feat : Firt dump
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  /* mbed Microcontroller Library
   * Copyright (c) 2015 ARM Limited
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  #ifndef MBED_TRANSACTION_H
  #define MBED_TRANSACTION_H
  
  #include "platform.h"
  #include "FunctionPointer.h"
  
  namespace mbed {
  
  /** Transaction structure
   */
  typedef struct {
      void *tx_buffer;           /**< Tx buffer */
      size_t tx_length;          /**< Length of Tx buffer*/
      void *rx_buffer;           /**< Rx buffer */
      size_t rx_length;          /**< Length of Rx buffer */
      uint32_t event;            /**< Event for a transaction */
      event_callback_t callback; /**< User's callback */
      uint8_t width;             /**< Buffer's word width (8, 16, 32, 64) */
  } transaction_t;
  
  /** Transaction class defines a transaction.
   */
  template<typename Class>
  class Transaction {
  public:
      Transaction(Class *tpointer, const transaction_t& transaction) : _obj(tpointer), _data(transaction) {
      }
  
      Transaction() : _obj(), _data() {
      }
  
      ~Transaction() {
      }
  
      /** Get object's instance for the transaction
       *
       * @return The object which was stored
       */
      Class* get_object() {
          return _obj;
      }
  
      /** Get the transaction
       *
       * @return The transaction which was stored
       */
      transaction_t* get_transaction() {
          return &_data;
      }
  
  private:
      Class* _obj;
      transaction_t _data;
  };
  
  }
  
  #endif