pthreads.c revision 1.5 
1/* Pthreads test program.
2   Copyright 1996-2015 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#include <unistd.h>
27
28/* Under HPUX 10, the second arg of pthread_create
29   is prototyped to be just a "pthread_attr_t", while under Solaris it
30   is a "pthread_attr_t *".  Arg! */
31
32#if defined (__hpux__)
33#define PTHREAD_CREATE_ARG2(arg) arg
34#define PTHREAD_CREATE_NULL_ARG2 null_attr
35static pthread_attr_t null_attr;
36#else
37#define PTHREAD_CREATE_ARG2(arg) &arg
38#define PTHREAD_CREATE_NULL_ARG2 NULL
39#endif
40
41void *
42routine (void *arg)
43{
44  /* When gdb is running, it sets hidden breakpoints in the thread
45     library.  The signals caused by these hidden breakpoints can
46     cause system calls such as 'sleep' to return early.  Pay attention
47     to the return value from 'sleep' to get the full sleep.  */
48  int unslept = 9;
49  while (unslept > 0)
50    unslept = sleep (unslept);
51
52  printf ("hello thread\n");
53}
54
55/* Marker function for the testsuite */
56void
57done_making_threads (void)
58{
59  /* Nothing */
60}
61
62void
63create_thread (void)
64{
65  pthread_t tid;
66
67  if (pthread_create (&tid, PTHREAD_CREATE_NULL_ARG2, routine, (void *) 0xfeedface))
68    {
69      perror ("pthread_create 1");
70      exit (1);
71    }
72}
73
74int
75main (int argc, char *argv[])
76{
77  int i;
78
79  /* Create a few threads */
80  for (i = 0; i < 5; i++)
81    create_thread ();
82  done_making_threads ();
83
84  printf ("hello\n");
85  printf ("hello\n");
86  return 0;
87}
88
89