glib/tests/private.c

   1 /* Unit tests for GPrivate and friends
   2  * Copyright (C) 2011 Red Hat, Inc
   3  * Author: Matthias Clasen
   4  *
   5  * This work is provided "as is"; redistribution and modification
   6  * in whole or in part, in any medium, physical or electronic is
   7  * permitted without restriction.
   8  *
   9  * This work is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12  *
  13  * In no event shall the authors or contributors be liable for any
  14  * direct, indirect, incidental, special, exemplary, or consequential
  15  * damages (including, but not limited to, procurement of substitute
  16  * goods or services; loss of use, data, or profits; or business
  17  * interruption) however caused and on any theory of liability, whether
  18  * in contract, strict liability, or tort (including negligence or
  19  * otherwise) arising in any way out of the use of this software, even
  20  * if advised of the possibility of such damage.
  21  */
  22
  23 /* We are testing some deprecated APIs here */
  24 #define GLIB_DISABLE_DEPRECATION_WARNINGS
  25
  26 #include <glib.h>
  27
  28 /* test basics:
  29  * - initial value is NULL
  30  * - set/get work repeatedly
  31  */
  32 static void
  33 test_private1 (void)
  34 {
  35   static GPrivate private = G_PRIVATE_INIT (NULL);
  36   gpointer value;
  37
  38   value = g_private_get (&private);
  39   g_assert (value == NULL);
  40
  41   g_private_set (&private, GINT_TO_POINTER(1));
  42   value = g_private_get (&private);
  43   g_assert_cmpint (GPOINTER_TO_INT (value), ==, 1);
  44
  45   g_private_set (&private, GINT_TO_POINTER(2));
  46   value = g_private_get (&private);
  47   g_assert_cmpint (GPOINTER_TO_INT (value), ==, 2);
  48 }
  49
  50 static gint private2_destroy_count;
  51
  52 static void
  53 private2_destroy (gpointer data)
  54 {
  55   g_atomic_int_inc (&private2_destroy_count);
  56 }
  57
  58 static GPrivate private2 = G_PRIVATE_INIT (private2_destroy);
  59
  60 static gpointer
  61 private2_func (gpointer data)
  62 {
  63   gint value = GPOINTER_TO_INT (data);
  64   gint i;
  65   gint v, v2;
  66
  67   for (i = 0; i < 1000; i++)
  68     {
  69       v = value + (i % 5);
  70       g_private_set (&private2, GINT_TO_POINTER (v));
  71       g_usleep (1000);
  72       v2 = GPOINTER_TO_INT (g_private_get (&private2));
  73       g_assert_cmpint (v, ==, v2);
  74     }
  75
  76   if (value % 2 == 0)
  77     g_thread_exit (NULL);
  78
  79   return NULL;
  80 }
  81
  82 /* test that
  83  * - threads do not interfere with each other
  84  * - destroy notifies are called for each thread exit
  85  * - destroy notifies are called for g_thread_exit() too
  86  * - destroy notifies are not called on g_private_set()
  87  * - destroy notifies are called on g_private_replace()
  88  */
  89 static void
  90 test_private2 (void)
  91 {
  92   GThread *thread[10];
  93   gint i;
  94
  95   g_private_set (&private2, GINT_TO_POINTER (234));
  96   g_private_replace (&private2, GINT_TO_POINTER (123));
  97
  98   for (i = 0; i < 10; i++)
  99     thread[i] = g_thread_create (private2_func, GINT_TO_POINTER (i), TRUE, NULL);
 100
 101   for (i = 0; i < 10; i++)
 102     g_thread_join (thread[i]);
 103
 104   g_assert_cmpint (private2_destroy_count, ==, 11);
 105 }
 106
 107 static gboolean private3_freed;
 108
 109 static void
 110 private3_free (gpointer data)
 111 {
 112   g_assert (data == (void*) 0x1234);
 113   private3_freed = TRUE;
 114 }
 115
 116 #ifdef G_OS_WIN32
 117 #include <windows.h>
 118 #include <process.h>
 119
 120 static guint __stdcall
 121 #else
 122 #include <pthread.h>
 123
 124 static gpointer
 125 #endif
 126 private3_func (gpointer data)
 127 {
 128   static GPrivate key = G_PRIVATE_INIT (private3_free);
 129
 130   g_private_set (&key, (void *) 0x1234);
 131
 132   return 0;
 133 }
 134
 135 static void
 136 test_private3 (void)
 137 {
 138   g_assert (!private3_freed);
 139
 140 #ifdef G_OS_WIN32
 141   {
 142     HANDLE thread;
 143     guint ignore;
 144     thread = (HANDLE) _beginthreadex (NULL, 0, private3_func, NULL, 0, &ignore);
 145     WaitForSingleObject (thread, INFINITE);
 146     CloseHandle (thread);
 147   }
 148 #else
 149   {
 150     pthread_t thread;
 151
 152     pthread_create (&thread, NULL, private3_func, NULL);
 153     pthread_join (thread, NULL);
 154   }
 155 #endif
 156   g_assert (private3_freed);
 157 }
 158
 159 /* test basics:
 160  * - static initialization works
 161  * - initial value is NULL
 162  * - get/set works repeatedly
 163  */
 164 static GStaticPrivate sp1 = G_STATIC_PRIVATE_INIT;
 165
 166 static void
 167 test_static_private1 (void)
 168 {
 169   gpointer value;
 170
 171   value = g_static_private_get (&sp1);
 172   g_assert (value == NULL);
 173
 174   g_static_private_set (&sp1, GINT_TO_POINTER(1), NULL);
 175   value = g_static_private_get (&sp1);
 176   g_assert_cmpint (GPOINTER_TO_INT(value), ==, 1);
 177
 178   g_static_private_set (&sp1, GINT_TO_POINTER(2), NULL);
 179   value = g_static_private_get (&sp1);
 180   g_assert_cmpint (GPOINTER_TO_INT(value), ==, 2);
 181
 182   g_static_private_free (&sp1);
 183
 184   value = g_static_private_get (&sp1);
 185   g_assert (value == NULL);
 186 }
 187
 188 static gint sp2_destroy_count;
 189
 190 static void
 191 sp2_destroy (gpointer data)
 192 {
 193   sp2_destroy_count++;
 194 }
 195
 196 static void
 197 sp2_destroy2 (gpointer data)
 198 {
 199   gint value = GPOINTER_TO_INT (data);
 200
 201   g_assert_cmpint (value, ==, 2);
 202 }
 203
 204 /* test that destroy notifies are called as expected
 205  * and on the right values
 206  */
 207 static void
 208 test_static_private2 (void)
 209 {
 210   GStaticPrivate sp2;
 211   gpointer value;
 212
 213   g_static_private_init (&sp2);
 214
 215   value = g_static_private_get (&sp2);
 216   g_assert (value == NULL);
 217
 218   g_static_private_set (&sp2, GINT_TO_POINTER(1), sp2_destroy);
 219   g_assert_cmpint (sp2_destroy_count, ==, 0);
 220   value = g_static_private_get (&sp2);
 221   g_assert_cmpint (GPOINTER_TO_INT(value), ==, 1);
 222
 223   g_static_private_set (&sp2, GINT_TO_POINTER(2), sp2_destroy2);
 224   g_assert_cmpint (sp2_destroy_count, ==, 1);
 225   value = g_static_private_get (&sp2);
 226   g_assert_cmpint (GPOINTER_TO_INT(value), ==, 2);
 227
 228   g_static_private_set (&sp2, GINT_TO_POINTER(3), sp2_destroy);
 229   g_assert_cmpint (sp2_destroy_count, ==, 1);
 230   value = g_static_private_get (&sp2);
 231   g_assert_cmpint (GPOINTER_TO_INT(value), ==, 3);
 232
 233   g_static_private_free (&sp2);
 234
 235   value = g_static_private_get (&sp2);
 236   g_assert (value == NULL);
 237 }
 238
 239 /* test that freeing and reinitializing a static private
 240  * drops previous value
 241  */
 242 static void
 243 test_static_private3 (void)
 244 {
 245   GStaticPrivate sp3;
 246   gpointer value;
 247
 248   g_static_private_init (&sp3);
 249
 250   value = g_static_private_get (&sp3);
 251   g_assert (value == NULL);
 252
 253   g_static_private_set (&sp3, GINT_TO_POINTER(1), NULL);
 254   value = g_static_private_get (&sp3);
 255   g_assert_cmpint (GPOINTER_TO_INT(value), ==, 1);
 256
 257   g_static_private_free (&sp3);
 258   g_static_private_init (&sp3);
 259
 260   value = g_static_private_get (&sp3);
 261   g_assert (value == NULL);
 262
 263   g_static_private_set (&sp3, GINT_TO_POINTER(2), NULL);
 264   value = g_static_private_get (&sp3);
 265   g_assert_cmpint (GPOINTER_TO_INT(value), ==, 2);
 266
 267   g_static_private_free (&sp3);
 268 }
 269
 270 static GStaticPrivate sp4 = G_STATIC_PRIVATE_INIT;
 271
 272 static gpointer
 273 sp4_func (gpointer data)
 274 {
 275   gint value = GPOINTER_TO_INT (data);
 276   gint i;
 277   gint v, v2;
 278
 279   for (i = 0; i < 1000; i++)
 280     {
 281       v = value + (i % 5);
 282       g_static_private_set (&sp4, GINT_TO_POINTER(v), NULL);
 283       g_usleep (1000);
 284       v2 = GPOINTER_TO_INT(g_static_private_get (&sp4));
 285       g_assert_cmpint (v, ==, v2);
 286     }
 287
 288   if (value % 2 == 0)
 289     g_thread_exit (NULL);
 290
 291   return NULL;
 292 }
 293
 294 /* test that threads do not interfere with each other
 295  */
 296 static void
 297 test_static_private4 (void)
 298 {
 299   GThread *thread[10];
 300   gint i;
 301
 302   for (i = 0; i < 10; i++)
 303     thread[i] = g_thread_create (sp4_func, GINT_TO_POINTER (i), TRUE, NULL);
 304
 305   for (i = 0; i < 10; i++)
 306     g_thread_join (thread[i]);
 307
 308   g_static_private_free (&sp4);
 309 }
 310
 311 static GStaticPrivate sp5 = G_STATIC_PRIVATE_INIT;
 312 static GMutex m5;
 313 static GCond c5a;
 314 static GCond c5b;
 315 static gint count5;
 316
 317 static gpointer
 318 sp5_func (gpointer data)
 319 {
 320   gint v = GPOINTER_TO_INT (data);
 321   gpointer value;
 322
 323   value = g_static_private_get (&sp5);
 324   g_assert (value == NULL);
 325
 326   g_static_private_set (&sp5, GINT_TO_POINTER (v), NULL);
 327   value = g_static_private_get (&sp5);
 328   g_assert_cmpint (GPOINTER_TO_INT (value), ==, v);
 329
 330   if (g_test_verbose ())
 331     g_printerr ("thread %d set sp5\n", v);
 332   g_mutex_lock (&m5);
 333   g_atomic_int_inc (&count5);
 334   g_cond_signal (&c5a);
 335   g_cond_wait (&c5b, &m5);
 336   g_mutex_unlock (&m5);
 337
 338   if (g_test_verbose ())
 339     g_printerr ("thread %d get sp5\n", v);
 340   value = g_static_private_get (&sp5);
 341   g_assert (value == NULL);
 342
 343   return NULL;
 344 }
 345
 346 static void
 347 test_static_private5 (void)
 348 {
 349   GThread *thread[10];
 350   gint i;
 351
 352   g_atomic_int_set (&count5, 0);
 353
 354   for (i = 0; i < 10; i++)
 355     thread[i] = g_thread_create (sp5_func, GINT_TO_POINTER (i), TRUE, NULL);
 356
 357   g_mutex_lock (&m5);
 358   while (g_atomic_int_get (&count5) < 10)
 359     g_cond_wait (&c5a, &m5);
 360
 361   if (g_test_verbose ())
 362     g_printerr ("sp5 gets nuked\n");
 363
 364   g_static_private_free (&sp5);
 365
 366   g_cond_broadcast (&c5b);
 367   g_mutex_unlock (&m5);
 368
 369   for (i = 0; i < 10; i++)
 370     g_thread_join (thread[i]);
 371 }
 372
 373 int
 374 main (int argc, char *argv[])
 375 {
 376   g_test_init (&argc, &argv, NULL);
 377
 378   g_test_add_func ("/thread/private1", test_private1);
 379   g_test_add_func ("/thread/private2", test_private2);
 380   g_test_add_func ("/thread/private3", test_private3);
 381   g_test_add_func ("/thread/staticprivate1", test_static_private1);
 382   g_test_add_func ("/thread/staticprivate2", test_static_private2);
 383   g_test_add_func ("/thread/staticprivate3", test_static_private3);
 384   g_test_add_func ("/thread/staticprivate4", test_static_private4);
 385   g_test_add_func ("/thread/staticprivate5", test_static_private5);
 386
 387   return g_test_run ();
 388 }