#include <pthread.h>
#include <stdio.h>

void * task(void * data)
{
 int * flag=(int *)data;
 unsigned long i;

 /* pthread_setcancelstate(PTHREAD_CANCEL_ENABLE,(int *)0); */
 pthread_setcancelstate(PTHREAD_CANCEL_DISABLE,(int *)0);
 /* pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS,(int *)0); */
 pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED,(int *)0);

 fprintf(stderr,"task begin\n");

 for(i=0;i<200*1000*1000;i++) {}
 (*flag)++;
 pthread_testcancel();
 (*flag)++;
 fprintf(stderr,"task end\n");

 return((void *)0);
}

int main(void)
{
 pthread_attr_t attr;
 pthread_t th;
 int flag=0;
 int pb=0;
 unsigned long i;

 if(!pb) pb|=pthread_attr_init(&attr);
 if(!pb) pb|=pthread_attr_setdetachstate(&attr,PTHREAD_CREATE_DETACHED);
 if(!pb) pb|=pthread_create(&th,&attr,task,&flag);
 if(!pb) pb|=pthread_attr_destroy(&attr);

 for(i=0;i<100*1000*1000;i++) {}
 pthread_cancel(th);
 for(i=0;i<200*1000*1000;i++) {}
 fprintf(stderr,"quit (flag=%d)\n",flag);

 return(pb);
}