text: /*
   * This file is part of the EasyLogger Library.
   *
   * Copyright (c) 2015, Armink, <armink.ztl@gmail.com>
   *
   * Permission is hereby granted, free of charge, to any person obtaining
   * a copy of this software and associated documentation files (the
   * 'Software'), to deal in the Software without restriction, including
   * without limitation the rights to use, copy, modify, merge, publish,
   * distribute, sublicense, and/or sell copies of the Software, and to
   * permit persons to whom the Software is furnished to do so, subject to
   * the following conditions:
   *
   * The above copyright notice and this permission notice shall be
   * included in all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
   * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
   * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
   * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
   * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
   * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   *
   * Function: Portable interface for each platform.
   * Created on: 2015-04-28
   */
  
  #include <elog.h>
  #include <stdio.h>
  #include <arch_timer.h>
  
  /**
   * EasyLogger port initialize
   *
   * @return result
   */
  ElogErrCode elog_port_init(void) {
      ElogErrCode result = ELOG_NO_ERR;
  
      /* add your code here */
  
      return result;
  }
  
  /**
   * EasyLogger port deinitialize
   *
   */
  void elog_port_deinit(void) {
  
      /* add your code here */
  
  }
  
  /**
   * output log port interface
   *
   * @param log output of log
   * @param size log size
   */
  void elog_port_output(const char *log, size_t size) {
  
      /* add your code here */
      printf("%.*s", size, log);
  }
  
  /**
   * output lock
   */
  void elog_port_output_lock(void) {
  
      /* add your code here */
  
  }
  
  /**
   * output unlock
   */
  void elog_port_output_unlock(void) {
  
      /* add your code here */
  
  }
  
  uint32_t do_div(uint64_t *n, uint32_t base)
  {
  	uint32_t remainder = *n % base;
  	*n = *n / base;
  	return remainder;
  }
  
  static size_t print_time(uint64_t ts, char *buf)
  {
  	unsigned long rem_nsec = do_div(&ts, 1000000000);
  
  	return sprintf(buf, "%5lu.%06lu",
  		       (unsigned long)ts, rem_nsec / 1000);
  }
  
  /**
   * get current time interface
   *
   * @return current time
   */
  const char *elog_port_get_time(void) {
  
      static char cur_system_time[64] = { 0 };
      print_time(arch_timer_read() * 1000000000 / arch_timer_frequecy(), cur_system_time);
      return cur_system_time;
  }
  
  /**
   * get current process name interface
   *
   * @return current process name
   */
  const char *elog_port_get_p_info(void) {
  
      /* add your code here */
      return "process";
  }
  
  /**
   * get current thread name interface
   *
   * @return current thread name
   */
  const char *elog_port_get_t_info(void) {
  
      /* add your code here */
      return "thread";
  }
  