c/pthread_extra/test_pause.c

   1 #include <signal.h>
   2 #include <pthread.h>
   3 #include <pthread_extra.h>
   4 #include <stdio.h>
   5 #include <stdlib.h>
   6 #include <assert.h>
   7 #include <unistd.h>
   8
   9 void *thread_test(void *arg) {
  10         //Whole process dies if you kill thread immediately before it is pausable
  11         //pthread_pause_enable();
  12         while(1) {
  13                 usleep(1000*300);
  14                 printf("Running%s!\n", (char *)arg);
  15         }
  16 }
  17
  18 int main() {
  19
  20         pthread_t a, b;
  21         pthread_pause_enable(); //Will get inherited by all threads from now on
  22         //That way you can be sure it is pausable immediately
  23         pthread_extra_create(&a, NULL, thread_test, " A");
  24         pthread_extra_create(&b, NULL, thread_test, " B");
  25         //sleep(1);
  26
  27         //printf("OK\n");
  28         /*
  29         for(int32_t i = 1;i>0;i++) {
  30                 pthread_pause(a);
  31                 pthread_pause(a);
  32                 pthread_unpause(a);
  33                 pthread_unpause(a);
  34         }
  35         */
  36         /*
  37         exit(23);
  38         pthread_pause(a);
  39         pthread_unpause(b);
  40         */
  41
  42         while(1) {
  43                 pthread_pause(b);
  44                 pthread_unpause(a);
  45                 printf("SWITCH A:\n");
  46                 sleep(2);
  47
  48                 printf("SWITCH B:\n");
  49                 pthread_pause(a);
  50                 pthread_unpause(b);
  51                 sleep(2);
  52
  53                 printf("SWITCH A+B:\n");
  54                 pthread_unpause(a);
  55                 pthread_unpause(b);
  56                 sleep(1);
  57
  58                 printf("SWITCH MAIN ONLY:\n");
  59                 pthread_pause_all();
  60                 sleep(1);
  61                 printf("SWITCH MAIN A+B:\n");
  62                 pthread_unpause_all();
  63                 sleep(1);
  64         }
  65
  66         pthread_join(a, NULL);
  67         pthread_join(b, NULL);
  68         printf("DIEDED!\n");
  69 }