gnu/dist/gdb6/gdb/testsuite/gdb.mi/pthreads.c

   1 /* Pthreads test program.
   2    Copyright 1996, 2002, 2003, 2004
   3    Free Software Foundation, Inc.
   4
   5    Written by Keith Seitz of Red Hat.
   6    Copied from gdb.threads/pthreads.c.
   7    Contributed by Red Hat.
   8
   9    This file is part of GDB.
  10
  11    This program is free software; you can redistribute it and/or modify
  12    it under the terms of the GNU General Public License as published by
  13    the Free Software Foundation; either version 2 of the License, or
  14    (at your option) any later version.
  15
  16    This program is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19    GNU General Public License for more details.
  20
  21    You should have received a copy of the GNU General Public License
  22    along with this program; if not, write to the Free Software
  23    Foundation, Inc., 59 Temple Place - Suite 330,
  24    Boston, MA 02111-1307, USA.  */
  25
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <pthread.h>
  29
  30 /* Under OSF 2.0 & 3.0 and HPUX 10, the second arg of pthread_create
  31    is prototyped to be just a "pthread_attr_t", while under Solaris it
  32    is a "pthread_attr_t *".  Arg! */
  33
  34 #if defined (__osf__) || defined (__hpux__)
  35 #define PTHREAD_CREATE_ARG2(arg) arg
  36 #define PTHREAD_CREATE_NULL_ARG2 null_attr
  37 static pthread_attr_t null_attr;
  38 #else
  39 #define PTHREAD_CREATE_ARG2(arg) &arg
  40 #define PTHREAD_CREATE_NULL_ARG2 NULL
  41 #endif
  42
  43 void *
  44 routine (void *arg)
  45 {
  46   /* When gdb is running, it sets hidden breakpoints in the thread
  47      library.  The signals caused by these hidden breakpoints can
  48      cause system calls such as 'sleep' to return early.  Pay attention
  49      to the return value from 'sleep' to get the full sleep.  */
  50   int unslept = 9;
  51   while (unslept > 0)
  52     unslept = sleep (unslept);
  53
  54   printf ("hello thread\n");
  55 }
  56
  57 /* Marker function for the testsuite */
  58 void
  59 done_making_threads (void)
  60 {
  61   /* Nothing */
  62 }
  63
  64 void
  65 create_thread (void)
  66 {
  67   pthread_t tid;
  68
  69   if (pthread_create (&tid, PTHREAD_CREATE_NULL_ARG2, routine, (void *) 0xfeedface))
  70     {
  71       perror ("pthread_create 1");
  72       exit (1);
  73     }
  74 }
  75
  76 int
  77 main (int argc, char *argv[])
  78 {
  79   int i;
  80
  81   /* Create a few threads */
  82   for (i = 0; i < 5; i++)
  83     create_thread ();
  84   done_making_threads ();
  85
  86   printf ("hello\n");
  87   printf ("hello\n");
  88   return 0;
  89 }
  90