ChCore-exercise/lab5/user/lab4/yield_spin.c
2021-05-23 22:24:02 +08:00

38 lines
659 B
C

#include <lib/print.h>
#include <lib/syscall.h>
#include <lib/thread.h>
#define PRIO 255
#define INFO 233
bool running = true;
void *thread_routine(void *arg)
{
u64 thread_id = (u64) arg;
printf("Hello, I am thread %u\n", thread_id);
while (running) {
}
/* usys_exit: just de-schedule itself without reclaiming the resource */
usys_exit(0);
return 0;
}
int main(int argc, char *argv[])
{
int child_thread_cap;
child_thread_cap = create_thread(thread_routine, 0, PRIO, 0);
if (child_thread_cap < 0)
printf("Create thread failed, return %d\n", child_thread_cap);
usys_yield();
printf("Successfully regain the control!\n");
return 0;
}