gdb/testsuite/gdb.threads/pthreads.c

   1 /* Pthreads test program.
   2    Copyright 1996-2015 Free Software Foundation, Inc.
   3
   4    Written by Fred Fish of Cygnus Support
   5    Contributed by Cygnus Support
   6
   7    This file is part of GDB.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  21
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <pthread.h>
  25 #include <unistd.h>
  26
  27 /* Under 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 (__hpux__)
  32 #define PTHREAD_CREATE_ARG2(arg) arg
  33 #define PTHREAD_CREATE_NULL_ARG2 null_attr
  34 static pthread_attr_t null_attr;
  35 #else
  36 #define PTHREAD_CREATE_ARG2(arg) &arg
  37 #define PTHREAD_CREATE_NULL_ARG2 NULL
  38 #endif
  39
  40 static int verbose = 0;
  41
  42 static void
  43 common_routine (arg)
  44      int arg;
  45 {
  46   static int from_thread1;
  47   static int from_thread2;
  48   static int from_main;
  49   static int hits;
  50   static int full_coverage;
  51
  52   if (verbose) printf("common_routine (%d)\n", arg);
  53   hits++;
  54   switch (arg)
  55     {
  56     case 0:
  57       from_main++;
  58       break;
  59     case 1:
  60       from_thread1++;
  61       break;
  62     case 2:
  63       from_thread2++;
  64       break;
  65     }
  66   if (from_main && from_thread1 && from_thread2)
  67     full_coverage = 1;
  68 }
  69
  70 static void *
  71 thread1 (void *arg)
  72 {
  73   int i;
  74   int z = 0;
  75
  76   if (verbose) printf ("thread1 (%0lx) ; pid = %d\n", (long) arg, getpid ());
  77   for (i=1; i <= 10000000; i++)
  78     {
  79       if (verbose) printf("thread1 %ld\n", (long) pthread_self ());
  80       z += i;
  81       common_routine (1);
  82       sleep(1);
  83     }
  84   return (void *) 0;
  85 }
  86
  87 static void *
  88 thread2 (void * arg)
  89 {
  90   int i;
  91   int k = 0;
  92
  93   if (verbose) printf ("thread2 (%0lx) ; pid = %d\n", (long) arg, getpid ());
  94   for (i=1; i <= 10000000; i++)
  95     {
  96       if (verbose) printf("thread2 %ld\n", (long) pthread_self ());
  97       k += i;
  98       common_routine (2);
  99       sleep(1);
 100     }
 101   sleep(100);
 102   return (void *) 0;
 103 }
 104
 105 void
 106 foo (a, b, c)
 107      int a, b, c;
 108 {
 109   int d, e, f;
 110
 111   if (verbose) printf("a=%d\n", a);
 112 }
 113
 114 int
 115 main(argc, argv)
 116      int argc;
 117      char **argv;
 118 {
 119   pthread_t tid1, tid2;
 120   int j;
 121   int t = 0;
 122   void (*xxx) ();
 123   pthread_attr_t attr;
 124
 125   if (verbose) printf ("pid = %d\n", getpid());
 126
 127   foo (1, 2, 3);
 128
 129   if (pthread_attr_init (&attr))
 130     {
 131       perror ("pthread_attr_init 1");
 132       exit (1);
 133     }
 134
 135 #ifdef PTHREAD_SCOPE_SYSTEM
 136   if (pthread_attr_setscope (&attr, PTHREAD_SCOPE_SYSTEM))
 137     {
 138       perror ("pthread_attr_setscope 1");
 139       exit (1);
 140     }
 141 #endif
 142
 143   if (pthread_create (&tid1, PTHREAD_CREATE_ARG2(attr), thread1, (void *) 0xfeedface))
 144     {
 145       perror ("pthread_create 1");
 146       exit (1);
 147     }
 148   if (verbose) printf ("Made thread %ld\n", (long) tid1);
 149   sleep (1);
 150
 151   if (pthread_create (&tid2, PTHREAD_CREATE_NULL_ARG2, thread2, (void *) 0xdeadbeef))
 152     {
 153       perror ("pthread_create 2");
 154       exit (1);
 155     }
 156   if (verbose) printf("Made thread %ld\n", (long) tid2);
 157
 158   sleep (1);
 159
 160   for (j = 1; j <= 10000000; j++)
 161     {
 162       if (verbose) printf("top %ld\n", (long) pthread_self ());
 163       common_routine (0);
 164       sleep(1);
 165       t += j;
 166     }
 167
 168   exit(0);
 169 }
 170