summaryrefslogtreecommitdiff
path: root/gthread/testgthread.c
blob: 2eb5b4861d3c57c029071127f3a7662167d0d130 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
#include "config.h"

#include <stdlib.h>

#define main testglib_main
#include <testglib.c>
#undef main

#define TEST_PRIVATE_THREADS 9
#define TEST_PRIVATE_ROUNDS 5

void
test_mutexes (void)
{
  GMutex *mutex = NULL;
  GCond *cond = NULL;
  GStaticMutex static_mutex = G_STATIC_MUTEX_INIT;
  G_LOCK_DECLARE (test_me);

  if (g_thread_supported ())
    {
      mutex = g_mutex_new ();
      cond = g_cond_new ();
    }

  g_mutex_lock (mutex);
  g_mutex_unlock (mutex);

  g_static_mutex_lock (static_mutex);
  g_static_mutex_unlock (static_mutex);

  g_cond_signal (cond);
  g_cond_broadcast (cond);

  G_LOCK (test_me);
  G_UNLOCK (test_me);

  if (g_thread_supported ())
    {
      g_cond_free (cond);
      g_mutex_free (mutex);
    }
}

#if defined(G_THREADS_IMPL_NSPR)	
#warning "note, that you have to link with whatever library"
#warning "nspr is building upon, it might otherwise (as on solaris) lead to"
#warning "run time failure, as the mutex functions are defined in libc, but"
#warning "as noops, that will make some nspr assertions fail."
#include <prthread.h>

gpointer
new_thread (GHookFunc func, gpointer data)
{
  PRThread *thread = PR_CreateThread (PR_SYSTEM_THREAD, func, data,
				      PR_PRIORITY_NORMAL, PR_LOCAL_THREAD,
				      PR_JOINABLE_THREAD, 0);
  return thread;
}
#define join_thread(thread) PR_JoinThread (thread)
#define self_thread() PR_GetCurrentThread ()

#elif defined(G_THREADS_IMPL_SOLARIS)	
#include <thread.h>

gpointer
new_thread (GHookFunc func, gpointer data)
{
  thread_t thread;
  thr_create (NULL, 0, (void *(*)(void *)) func, data, THR_BOUND, &thread);
  return GUINT_TO_POINTER (thread);
}
#define join_thread(thread) \
  thr_join ((thread_t)GPOINTER_TO_UINT (thread), NULL, NULL)
#define self_thread()  GUINT_TO_POINTER (thr_self ())

#elif defined(G_THREADS_IMPL_POSIX)
#include <pthread.h>

gpointer
new_thread(GHookFunc func, gpointer data)
{
  pthread_t thread;
  pthread_attr_t pthread_attr;
  pthread_attr_init (&pthread_attr);
  /* This is the default, it seems, so leave that out for now 
     pthread_attr_setdetachstate (&pthread_attr, PTHREAD_CREATE_JOINABLE);
  */
  pthread_create (&thread, &pthread_attr, (void *(*)(void *)) func, data);
  return GUINT_TO_POINTER (thread);
}
#define join_thread(thread) \
  pthread_join ((pthread_t)GPOINTER_TO_UINT (thread), NULL)
#define self_thread() GUINT_TO_POINTER (pthread_self ())

#else /* we are not having a thread implementation, do nothing */

#define new_thread(func,data) (NULL)
#define join_thread(thread) ((void)0)
#define self_thread() NULL

#endif

#define G_MICROSEC 1000000

void
wait_thread (double seconds)
{
  GMutex *mutex;
  GCond *cond;
  GTimeVal current_time;

  g_get_current_time (&current_time);
  mutex = g_mutex_new ();
  cond = g_cond_new ();

  current_time.tv_sec += (guint) seconds;
  seconds -= (guint) seconds;
  current_time.tv_usec += (guint) (seconds * G_MICROSEC);
  while (current_time.tv_usec >= G_MICROSEC)
    {
      current_time.tv_usec -= G_MICROSEC;
      current_time.tv_sec++;
    }

  g_mutex_lock (mutex);
  g_cond_timed_wait (cond, mutex, &current_time);
  g_mutex_unlock (mutex);

  g_mutex_free (mutex);
  g_cond_free (cond);
}

gpointer
private_constructor (void)
{
  gpointer *result = g_new (gpointer, 2);
  result[0] = 0;
  result[1] = self_thread ();
  g_print ("allocating data for the thread %p.\n", result[1]);
  return result;
}

void
private_destructor (gpointer data)
{
  gpointer *real = data;
  g_print ("freeing data for the thread %p.\n", real[1]);
  g_free (real);
}

GStaticPrivate private_key;

void
test_private_func (void *data)
{
  guint i = 0;
  static unsigned int seed = 0;
  if (!seed)
    {
      GTimeVal now;
      g_get_current_time (&now);
      seed = now.tv_usec;
    }
  wait_thread (1);
  while (i < TEST_PRIVATE_ROUNDS)
    {
#ifdef HAVE_RAND_R
      guint random_value = rand_r (&seed) % 10000;
#else
      guint random_value = rand() % 10000;
#endif
      guint *data = g_static_private_get (&private_key);
      if (!data)
	{
	  data = private_constructor ();
	  g_static_private_set (&private_key, data, private_destructor);
	}
      *data = random_value;
      wait_thread (.2);
      g_assert (*(guint *) g_static_private_get (&private_key) == random_value);
      i++;
    }
}

void
test_private (void)
{
  int i;
  gpointer threads[TEST_PRIVATE_THREADS];
  for (i = 0; i < TEST_PRIVATE_THREADS; i++)
    {
      threads[i] = new_thread (test_private_func, GINT_TO_POINTER(i));
    }
  for (i = 0; i < TEST_PRIVATE_THREADS; i++)
    {
      join_thread (threads[i]);
    }
  g_print ("\n");
}

int
main (void)
{
  test_mutexes ();

  g_thread_init (NULL);

  test_mutexes ();

  test_private ();

  /* later we might want to start n copies of that */
  testglib_main (0, NULL);

  return 0;
}