text: /*
   *  Copyright (c) 2016, The OpenThread Authors.
   *  All rights reserved.
   *
   *  Redistribution and use in source and binary forms, with or without
   *  modification, are permitted provided that the following conditions are met:
   *  1. Redistributions of source code must retain the above copyright
   *     notice, this list of conditions and the following disclaimer.
   *  2. Redistributions in binary form must reproduce the above copyright
   *     notice, this list of conditions and the following disclaimer in the
   *     documentation and/or other materials provided with the distribution.
   *  3. Neither the name of the copyright holder nor the
   *     names of its contributors may be used to endorse or promote products
   *     derived from this software without specific prior written permission.
   *
   *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
   *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   *  POSSIBILITY OF SUCH DAMAGE.
   */
  
  /**
   * @file
   * @brief
   *   This file includes the (posix or windows) platform-specific initializers.
   */
  
  #ifndef PLATFORM_POSIX_H_
  #define PLATFORM_POSIX_H_
  
  #include <openthread/config.h>
  
  #include <assert.h>
  #include <stdlib.h>
  #include <stdio.h>
  #include <string.h>
  #include <time.h>
  
  #if _WIN32
  #include <WinSock2.h>
  #include <WS2tcpip.h>
  #include <windows.h>
  #define POLL WSAPoll
  #define ssize_t int
  #include <time.h>
  #define localtime _localtime32
  // In user mode, define some Linux functions
  __forceinline int gettimeofday(struct timeval *tv, struct timezone *tz)
  {
      (void)tz;
      tv->tv_sec = _time32(NULL);
      tv->tv_usec = 0;
      return 0;
  }
  __forceinline void timersub(struct timeval *a, struct timeval *b, struct timeval *res)
  {
      res->tv_sec = (long)_difftime32(a->tv_sec, b->tv_sec);
      res->tv_usec = 0;
  }
  #else
  #include <arpa/inet.h>
  #include <fcntl.h>
  #include <netinet/in.h>
  #include <poll.h>
  #include <sys/select.h>
  #include <sys/socket.h>
  #include <sys/stat.h>
  #include <sys/time.h>
  #include <unistd.h>
  #define POLL poll
  #endif
  
  #include <openthread/openthread.h>
  
  /**
   * Unique node ID.
   *
   */
  extern uint32_t NODE_ID;
  
  /**
   * Well-known Unique ID used by a simulated radio that supports promiscuous mode.
   *
   */
  extern uint32_t WELLKNOWN_NODE_ID;
  
  /**
   * This function initializes the alarm service used by OpenThread.
   *
   */
  void platformAlarmInit(void);
  
  /**
   * This function retrieves the time remaining until the alarm fires.
   *
   * @param[out]  aTimeval  A pointer to the timeval struct.
   *
   */
  void platformAlarmUpdateTimeout(struct timeval *tv);
  
  /**
   * This function performs alarm driver processing.
   *
   * @param[in]  aInstance  The OpenThread instance structure.
   *
   */
  void platformAlarmProcess(otInstance *aInstance);
  
  /**
   * This function initializes the radio service used by OpenThread.
   *
   */
  void platformRadioInit(void);
  
  /**
   * This function updates the file descriptor sets with file descriptors used by the radio driver.
   *
   * @param[inout]  aReadFdSet   A pointer to the read file descriptors.
   * @param[inout]  aWriteFdSet  A pointer to the write file descriptors.
   * @param[inout]  aMaxFd       A pointer to the max file descriptor.
   *
   */
  void platformRadioUpdateFdSet(fd_set *aReadFdSet, fd_set *aWriteFdSet, int *aMaxFd);
  
  /**
   * This function performs radio driver processing.
   *
   * @param[in]  aInstance  The OpenThread instance structure.
   *
   */
  void platformRadioProcess(otInstance *aInstance);
  
  /**
   * This function initializes the random number service used by OpenThread.
   *
   */
  void platformRandomInit(void);
  
  /**
   * This function updates the file descriptor sets with file descriptors used by the UART driver.
   *
   * @param[inout]  aReadFdSet   A pointer to the read file descriptors.
   * @param[inout]  aWriteFdSet  A pointer to the write file descriptors.
   * @param[inout]  aMaxFd       A pointer to the max file descriptor.
   *
   */
  void platformUartUpdateFdSet(fd_set *aReadFdSet, fd_set *aWriteFdSet, fd_set *aErrorFdSet, int *aMaxFd);
  
  /**
   * This function performs radio driver processing.
   *
   */
  void platformUartProcess(void);
  
  /**
   * This function restores the Uart.
   *
   */
  void platformUartRestore(void);
  
  #endif  // PLATFORM_POSIX_H_
  