inux下gettimeofday函数windows替换方法(详解)

实例如下：

#include <time.h>#ifdef WIN32#  include <windows.h>#else#  include <sys/time.h>#endif#ifdef WIN32intgettimeofday(struct timeval *tp, void *tzp){  time_t clock;  struct tm tm;  SYSTEMTIME wtm;  GetLocalTime(&wtm);  tm.tm_year   = wtm.wYear - 1900;  tm.tm_mon   = wtm.wMonth - 1;  tm.tm_mday   = wtm.wDay;  tm.tm_hour   = wtm.wHour;  tm.tm_min   = wtm.wMinute;  tm.tm_sec   = wtm.wSecond;  tm. tm_isdst  = -1;  clock = mktime(&tm);  tp->tv_sec = clock;  tp->tv_usec = wtm.wMilliseconds * 1000;  return (0);}#endif

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