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os/ossrv/glib/tsrc/BC/tests/mainloop-test.c
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib. 
     1 /* Portion Copyright © 2008-09 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.*/

     2 #undef G_DISABLE_ASSERT

     3 #undef G_LOG_DOMAIN

     4 

     5 

     6 #include <errno.h>

     7 #include <glib.h>

     8 

     9 #ifdef G_OS_UNIX

    10 #include <unistd.h>

    11 #endif

    12 #include <stdio.h>

    13 #include <stdlib.h>

    14 

    15 #ifdef G_OS_WIN32

    16 #include <fcntl.h>		/* For _O_BINARY used by pipe() macro */

    17 #include <io.h>			/* for _pipe() */

    18 #endif

    19 

    20 

    21 

    22 #ifdef SYMBIAN

    23 #include <glib_global.h>

    24 #include "mrt2_glib2_test.h"

    25 #endif /*SYMBIAN*/

    26 

    27 

    28 #define ITERS 10

    29 #define INCREMENT 10

    30 #define NTHREADS 4

    31 #define NCRAWLERS 4

    32 #define CRAWLER_TIMEOUT_RANGE 40

    33 #define RECURSER_TIMEOUT 50

    34 

    35 /* The partial ordering between the context array mutex and

    36  * crawler array mutex is that the crawler array mutex cannot

    37  * be locked while the context array mutex is locked

    38  */

    39 GPtrArray *context_array;

    40 GMutex *context_array_mutex;

    41 GCond *context_array_cond;

    42 

    43 GMainLoop *main_loop;

    44 

    45 G_LOCK_DEFINE_STATIC (crawler_array_lock);

    46 GPtrArray *crawler_array;

    47 

    48 typedef struct _AddrData AddrData;

    49 typedef struct _TestData TestData;

    50 

    51 struct _AddrData

    52 {

    53   GMainLoop *loop;

    54   GIOChannel *dest;

    55   gint count;

    56 };

    57 

    58 struct _TestData

    59 {

    60   gint current_val;

    61   gint iters;

    62   GIOChannel *in;

    63 };

    64 

    65 static void cleanup_crawlers (GMainContext *context);

    66 

    67 gboolean

    68 read_all (GIOChannel *channel, char *buf, gsize len)

    69 {

    70   gsize bytes_read = 0;

    71   gsize count;

    72   GIOError err;

    73 

    74   while (bytes_read < len)

    75     {

    76       err = g_io_channel_read (channel, buf + bytes_read, len - bytes_read, &count);

    77       if (err)

    78 	{

    79 	  if (err != G_IO_ERROR_AGAIN)

    80 	  g_assert(FALSE && "mainloop-test failed");

    81 	    return FALSE;

    82 	}

    83       else if (count == 0)

    84 	return FALSE;

    85 

    86       bytes_read += count;

    87     }

    88 

    89   return TRUE;

    90 }

    91 

    92 gboolean

    93 write_all (GIOChannel *channel, char *buf, gsize len)

    94 {

    95   gsize bytes_written = 0;

    96   gsize count;

    97   GIOError err;

    98 

    99   while (bytes_written < len)

   100     {

   101       err = g_io_channel_write (channel, buf + bytes_written, len - bytes_written, &count);

   102       if (err && err != G_IO_ERROR_AGAIN)

   103 	return FALSE;

   104 

   105       bytes_written += count;

   106     }

   107 

   108   return TRUE;

   109 }

   110 

   111 gboolean

   112 adder_callback (GIOChannel   *source,

   113 		GIOCondition  condition,

   114 		gpointer      data)

   115 {

   116   char buf1[32];

   117   char buf2[32];

   118 

   119   char result[32];

   120 

   121   AddrData *addr_data = data;

   122 

   123   if (!read_all (source, buf1, 32) ||

   124       !read_all (source, buf2, 32))

   125     {

   126       g_main_loop_quit (addr_data->loop);

   127       return FALSE;

   128     }

   129 

   130   sprintf (result, "%d", atoi(buf1) + atoi(buf2));

   131   write_all (addr_data->dest, result, 32);

   132 

   133   return TRUE;

   134 }

   135 

   136 gboolean

   137 timeout_callback (gpointer data)

   138 {

   139   AddrData *addr_data = data;

   140 

   141   addr_data->count++;

   142 

   143   return TRUE;

   144 }

   145 

   146 gpointer

   147 adder_thread (gpointer data)

   148 {

   149   GMainContext *context;

   150   GSource *adder_source;

   151   GSource *timeout_source;

   152 

   153   GIOChannel **channels = data;

   154   AddrData addr_data;

   155 

   156   context = g_main_context_new ();

   157 

   158   g_assert(context != NULL);

   159 

   160   g_mutex_lock (context_array_mutex);

   161 

   162   g_ptr_array_add (context_array, context);

   163 

   164   if (context_array->len == NTHREADS)

   165     g_cond_broadcast (context_array_cond);

   166 

   167   g_mutex_unlock (context_array_mutex);

   168 

   169   addr_data.dest = channels[1];

   170   addr_data.loop = g_main_loop_new (context, FALSE);

   171   addr_data.count = 0;

   172 

   173   adder_source = g_io_create_watch (channels[0], G_IO_IN | G_IO_HUP);

   174 

   175   g_assert(adder_source != NULL);

   176 

   177   g_source_set_callback (adder_source, (GSourceFunc)adder_callback, &addr_data, NULL);

   178   g_source_attach (adder_source, context);

   179   g_source_unref (adder_source);

   180 

   181   timeout_source = g_timeout_source_new (10);

   182 

   183   g_assert(timeout_source != NULL);

   184 

   185   g_source_set_callback (timeout_source, (GSourceFunc)timeout_callback, &addr_data, NULL);

   186   g_source_set_priority (timeout_source, G_PRIORITY_HIGH);

   187   g_source_attach (timeout_source, context);

   188   g_source_unref (timeout_source);

   189 

   190   g_main_loop_run (addr_data.loop);

   191 

   192   g_io_channel_unref (channels[0]);

   193   g_io_channel_unref (channels[1]);

   194 

   195   g_free (channels);

   196 

   197   g_main_loop_unref (addr_data.loop);

   198 

   199 #ifdef VERBOSE

   200   g_print ("Timeout run %d times\n", addr_data.count);

   201 #endif

   202 

   203   g_mutex_lock (context_array_mutex);

   204   g_ptr_array_remove (context_array, context);

   205   if (context_array->len == 0)

   206     g_main_loop_quit (main_loop);

   207   g_mutex_unlock (context_array_mutex);

   208 

   209   cleanup_crawlers (context);

   210 

   211   return NULL;

   212 }

   213 

   214 

   215 void

   216 io_pipe (GIOChannel **channels)

   217 {

   218   gint fds[2];

   219 

   220   if (pipe(fds) < 0)

   221     {

   222       g_warning ("Cannot create pipe %s\n", g_strerror (errno));

   223 

   224       g_assert(FALSE && "mainloop-test failed");

   225 

   226       exit (1);

   227     }

   228 

   229   channels[0] = g_io_channel_unix_new (fds[0]);

   230   channels[1] = g_io_channel_unix_new (fds[1]);

   231 

   232   g_io_channel_set_close_on_unref (channels[0], TRUE);

   233   g_io_channel_set_close_on_unref (channels[1], TRUE);

   234 }

   235 

   236 void

   237 do_add (GIOChannel *in, gint a, gint b)

   238 {

   239   char buf1[32];

   240   char buf2[32];

   241 

   242   sprintf (buf1, "%d", a);

   243   sprintf (buf2, "%d", b);

   244 

   245   write_all (in, buf1, 32);

   246   write_all (in, buf2, 32);

   247 }

   248 

   249 gboolean

   250 adder_response (GIOChannel   *source,

   251 		GIOCondition  condition,

   252 		gpointer      data)

   253 {

   254   char result[32];

   255   TestData *test_data = data;

   256 

   257   if (!read_all (source, result, 32))

   258     return FALSE;

   259 

   260   test_data->current_val = atoi (result);

   261   test_data->iters--;

   262 

   263   if (test_data->iters == 0)

   264     {

   265       if (test_data->current_val != ITERS * INCREMENT)

   266 	{

   267 	  g_print ("Addition failed: %d != %d\n",

   268 		   test_data->current_val, ITERS * INCREMENT);

   269 

   270 	  g_assert(FALSE && "mainloop-test failed");

   271 

   272 	  exit (1);

   273 	}

   274 

   275       g_io_channel_unref (source);

   276       g_io_channel_unref (test_data->in);

   277 

   278       g_free (test_data);

   279 

   280       return FALSE;

   281     }

   282 

   283   do_add (test_data->in, test_data->current_val, INCREMENT);

   284 

   285   return TRUE;

   286 }

   287 

   288 void

   289 create_adder_thread (void)

   290 {

   291   GError *err = NULL;

   292   TestData *test_data;

   293   GThread *thread;

   294 

   295   GIOChannel *in_channels[2];

   296   GIOChannel *out_channels[2];

   297 

   298   GIOChannel **sub_channels;

   299 

   300   sub_channels = g_new (GIOChannel *, 2);

   301 

   302   io_pipe (in_channels);

   303   io_pipe (out_channels);

   304 

   305   sub_channels[0] = in_channels[0];

   306   sub_channels[1] = out_channels[1];

   307 

   308   g_thread_create (adder_thread, sub_channels, FALSE, &err);

   309 

   310   if (err)

   311     {

   312       g_warning ("Cannot create thread: %s", err->message);

   313 

   314       g_assert(FALSE && "mainloop-test failed");

   315 

   316       exit (1);

   317     }

   318 

   319   test_data = g_new (TestData, 1);

   320   test_data->in = in_channels[1];

   321   test_data->current_val = 0;

   322   test_data->iters = ITERS;

   323 

   324   g_io_add_watch (out_channels[0], G_IO_IN | G_IO_HUP,

   325 		  adder_response, test_data);

   326 

   327   do_add (test_data->in, test_data->current_val, INCREMENT);

   328 }

   329 

   330 static void create_crawler (void);

   331 

   332 static void

   333 remove_crawler (void)

   334 {

   335   GSource *other_source;

   336 

   337   if (crawler_array->len > 0)

   338     {

   339       other_source = crawler_array->pdata[g_random_int_range (0, crawler_array->len)];

   340       g_source_destroy (other_source);

   341       g_assert (g_ptr_array_remove_fast (crawler_array, other_source));

   342     }

   343 }

   344 

   345 static gint

   346 crawler_callback (gpointer data)

   347 {

   348   GSource *source = data;

   349 

   350   G_LOCK (crawler_array_lock);

   351 

   352   if (!g_ptr_array_remove_fast (crawler_array, source))

   353     remove_crawler();

   354 

   355   remove_crawler();

   356   G_UNLOCK (crawler_array_lock);

   357 

   358   create_crawler();

   359   //create_crawler();

   360 

   361   return FALSE;

   362 }

   363 

   364 static void

   365 create_crawler (void)

   366 {

   367   GSource *source = g_timeout_source_new (g_random_int_range (0, CRAWLER_TIMEOUT_RANGE));

   368 

   369   g_assert(source != NULL);

   370 

   371   g_source_set_callback (source, (GSourceFunc)crawler_callback, source, NULL);

   372 

   373   G_LOCK (crawler_array_lock);

   374   g_ptr_array_add (crawler_array, source);

   375 

   376   g_mutex_lock (context_array_mutex);

   377   if(context_array->len == 0)

   378   	g_source_attach (source, context_array->pdata[0]);

   379   else

   380   	g_source_attach (source, context_array->pdata[g_random_int_range (0, context_array->len)]);

   381   g_source_unref (source);

   382   g_mutex_unlock (context_array_mutex);

   383 

   384   G_UNLOCK (crawler_array_lock);

   385 }

   386 

   387 static void

   388 cleanup_crawlers (GMainContext *context)

   389 {

   390   gint i;

   391 

   392   G_LOCK (crawler_array_lock);

   393   for (i=0; i < crawler_array->len; i++)

   394     {

   395       if (g_source_get_context (crawler_array->pdata[i]) == context)

   396 	{

   397 	  g_source_destroy (g_ptr_array_remove_index (crawler_array, i));

   398 	  i--;

   399 	}

   400     }

   401   G_UNLOCK (crawler_array_lock);

   402 }

   403 

   404 static gboolean

   405 recurser_idle (gpointer data)

   406 {

   407   GMainContext *context = data;

   408   gint i;

   409 

   410   for (i = 0; i < 10; i++)

   411     g_main_context_iteration (context, FALSE);

   412 

   413   return FALSE;

   414 }

   415 

   416 static gboolean

   417 recurser_start (gpointer data)

   418 {

   419   GMainContext *context;

   420   GSource *source;

   421 

   422   g_mutex_lock (context_array_mutex);

   423 

   424   if(context_array->len == 0)

   425   	context = context_array->pdata[0];

   426   else

   427   	context = context_array->pdata[g_random_int_range (0, context_array->len)];

   428   source = g_idle_source_new ();

   429   g_source_set_callback (source, recurser_idle, context, NULL);

   430   g_source_attach (source, context);

   431   g_source_unref (source);

   432   g_mutex_unlock (context_array_mutex);

   433 

   434   return TRUE;

   435 }

   436 

   437 int

   438 main (int   argc,

   439       char *argv[])

   440 {

   441   /* Only run the test, if threads are enabled and a default thread

   442      implementation is available */

   443 #if defined(G_THREADS_ENABLED) && ! defined(G_THREADS_IMPL_NONE)

   444   gint i;

   445 

   446   #ifdef SYMBIAN

   447   g_log_set_handler (NULL,  G_LOG_FLAG_FATAL| G_LOG_FLAG_RECURSION | G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_WARNING | G_LOG_LEVEL_MESSAGE | G_LOG_LEVEL_INFO | G_LOG_LEVEL_DEBUG, &mrtLogHandler, NULL);

   448   g_set_print_handler(mrtPrintHandler);

   449   #endif /*SYMBIAN*/

   450 #if 0

   451   g_thread_init (NULL);

   452 

   453   context_array = g_ptr_array_new ();

   454 

   455   g_assert(context_array != NULL);

   456 

   457   context_array_mutex = g_mutex_new ();

   458 

   459   g_assert(context_array_mutex != NULL);

   460 

   461   context_array_cond = g_cond_new ();

   462 

   463   g_assert(context_array_cond != NULL);

   464 

   465   crawler_array = g_ptr_array_new ();

   466 

   467   g_assert(crawler_array != NULL);

   468 

   469   main_loop = g_main_loop_new (NULL, FALSE);

   470 

   471   g_assert(main_loop != NULL);

   472 

   473   for (i = 0; i < NTHREADS; i++)

   474     create_adder_thread ();

   475 

   476   /* Wait for all threads to start

   477    */

   478   g_mutex_lock (context_array_mutex);

   479 

   480   if (context_array->len < NTHREADS)

   481     g_cond_wait (context_array_cond, context_array_mutex);

   482 

   483   g_mutex_unlock (context_array_mutex);

   484 

   485   for (i = 0; i < NCRAWLERS; i++)

   486     create_crawler ();

   487 

   488   g_timeout_add (RECURSER_TIMEOUT, recurser_start, NULL);

   489 

   490   g_main_loop_run (main_loop);

   491   g_main_loop_unref (main_loop);

   492 #endif

   493 #endif

   494 

   495   #ifdef SYMBIAN

   496   testResultXml("mainloop-test");

   497   #endif /* EMULATOR */

   498 

   499   return 0;

   500 }
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