posix.c

extremeDB s sample code,useful for you

#include    "platform.h"
#include    "mco.h"

static time_t init_time		= 0;

timer_unit mco_system_get_current_time()
{
  unsigned long r;
  struct timeb t;
  ftime(&t);

  if ( init_time == 0 )  init_time = t.time;
  r  = (t.time-init_time)*1000;
  r += t.millitm;
  return (timer_unit)r;
}

/* Suspend the current thread for the specified # of milliseconds */
void Sleep( unsigned long millisecs) {
	struct timespec tm1;
	struct timespec tm2;

	tm1.tv_sec = millisecs / 1000;
	tm1.tv_nsec = (millisecs % 1000) * 1000000;
	while (nanosleep(&tm1, &tm2) != 0)
		memcpy(&tm1, &tm2, sizeof(struct timespec));
}

/* print string to STDOUT & flush buffer */
void Printf(char *str,...)
{
    va_list argptr;
    va_start(argptr, str);
    vfprintf(stdout, str, argptr);
    va_end(argptr);
    fflush(stdout);
}