pthreads.c revision 1.1 
1/* Pthreads test program.
2   Copyright 1996-2014 Free Software Foundation, Inc.
3
4   Written by Keith Seitz of Red Hat.
5   Copied from gdb.threads/pthreads.c.
6   Contributed by Red Hat.
7
8   This file is part of GDB.
9
10   This program is free software; you can redistribute it and/or modify
11   it under the terms of the GNU General Public License as published by
12   the Free Software Foundation; either version 3 of the License, or
13   (at your option) any later version.
14
15   This program is distributed in the hope that it will be useful,
16   but WITHOUT ANY WARRANTY; without even the implied warranty of
17   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18   GNU General Public License for more details.
19
20   You should have received a copy of the GNU General Public License
21   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
22
23#include <stdio.h>
24#include <stdlib.h>
25#include <pthread.h>
26
27/* Under OSF 2.0 & 3.0 and HPUX 10, the second arg of pthread_create
28   is prototyped to be just a "pthread_attr_t", while under Solaris it
29   is a "pthread_attr_t *".  Arg! */
30
31#if defined (__osf__) || defined (__hpux__)
32#define PTHREAD_CREATE_ARG2(arg) arg
33#define PTHREAD_CREATE_NULL_ARG2 null_attr
34static pthread_attr_t null_attr;
35#else
36#define PTHREAD_CREATE_ARG2(arg) &arg
37#define PTHREAD_CREATE_NULL_ARG2 NULL
38#endif
39
40void *
41routine (void *arg)
42{
43  /* When gdb is running, it sets hidden breakpoints in the thread
44     library.  The signals caused by these hidden breakpoints can
45     cause system calls such as 'sleep' to return early.  Pay attention
46     to the return value from 'sleep' to get the full sleep.  */
47  int unslept = 9;
48  while (unslept > 0)
49    unslept = sleep (unslept);
50
51  printf ("hello thread\n");
52}
53
54/* Marker function for the testsuite */
55void
56done_making_threads (void)
57{
58  /* Nothing */
59}
60
61void
62create_thread (void)
63{
64  pthread_t tid;
65
66  if (pthread_create (&tid, PTHREAD_CREATE_NULL_ARG2, routine, (void *) 0xfeedface))
67    {
68      perror ("pthread_create 1");
69      exit (1);
70    }
71}
72
73int
74main (int argc, char *argv[])
75{
76  int i;
77
78  /* Create a few threads */
79  for (i = 0; i < 5; i++)
80    create_thread ();
81  done_making_threads ();
82
83  printf ("hello\n");
84  printf ("hello\n");
85  return 0;
86}
87
88