pthreads.c

来自「gdb-6.0 linux 下的调试工具」· C语言 代码 · 共 58 行

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

/* Under OSF 2.0 & 3.0 and HPUX 10, the second arg of pthread_create
   is prototyped to be just a "pthread_attr_t", while under Solaris it
   is a "pthread_attr_t *".  Arg! */

#if defined (__osf__) || defined (__hpux__)
#define PTHREAD_CREATE_ARG2(arg) arg
#define PTHREAD_CREATE_NULL_ARG2 null_attr
static pthread_attr_t null_attr;
#else
#define PTHREAD_CREATE_ARG2(arg) &arg
#define PTHREAD_CREATE_NULL_ARG2 NULL
#endif

void *
routine (void *arg)
{
  sleep (9);
  printf ("hello thread\n");
}

/* Marker function for the testsuite */
void
done_making_threads (void)
{
  /* Nothing */
};

void
create_thread (void)
{
  pthread_t tid;

  if (pthread_create (&tid, PTHREAD_CREATE_NULL_ARG2, routine, (void *) 0xfeedface))
    {
      perror ("pthread_create 1");
      exit (1);
    }
}

int
main (int argc, char *argv[])
{
  int i;

  /* Create a few threads */
  for (i = 0; i < 5; i++)
    create_thread ();
  done_making_threads ();

  printf ("hello\n");
  printf ("hello\n");
  return 0;
}