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/* Offtimer.c.For auto halt. */
#include <time.h>
#include <stdlib.h>
#include <unistd.h>
#define DELAY 60/* Time of sleeping */
int main()
{
  time_t now;
  struct tm *p;
  
  while(1)
  {
  now = time(NULL);
  sleep(DELAY);/* To reduce cpu occupation */
  p = localtime(&now);
  if ((p->tm_hour = 14) && (p->tm_min >= 30))/ *This means the system will halt after 14:30 or 14:31 */
  system("poweroff"); / *'poweroff' is the command in Red Flag Linux
Desktop 5.0 to turn off the computer.To do this you should be root. */
  }
  return 0;
}
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void (*signal (int signum,void (*handle)(int)))(int);ÉèÖÃij¸öÐźŵĴ¦Àí·½·¨
int sigaction(int signum,const struct sigaction *act,struct sigaction *oldact);ÓÃÓÚ¼ì²é»ò¸Ä±ä½ø³ÌÔÚ½Óµ½ÐźÅʱµÄ¶¯×÷
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static inline void sigaddset(sigset_t *set,int _sig);
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C#µ÷ÓÃC DLL

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°²×°eclipse-cpp-galileo-win32.zip
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#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#define err(msg) perror(msg)
static void mkdirs(const char *dir)
{
        char tmp[1024];
        char *p;
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