mirror of
https://github.com/SmallPond/MIT6.828_OS.git
synced 2026-04-26 19:59:49 +08:00
26 lines
326 B
C
26 lines
326 B
C
#include "types.h"
|
|
#include "stat.h"
|
|
#include "user.h"
|
|
|
|
void periodic();
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
int i;
|
|
printf(1, "alarmtest starting\n");
|
|
alarm(10, periodic);
|
|
for(i = 0; i < 25*5000000; i++){
|
|
if((i % 250000) == 0)
|
|
write(2, ".", 1);
|
|
}
|
|
exit();
|
|
}
|
|
|
|
void
|
|
periodic()
|
|
{
|
|
printf(1, "alarm!\n");
|
|
}
|
|
|