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os/ossrv/glib/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 #include <errno.h>

     6 #include <glib.h>

     7 #if (defined G_OS_UNIX)||(defined __SYMBIAN32__)

     8 #include <unistd.h>

     9 #endif

    10 #include <stdio.h>

    11 #include <stdlib.h>

    12 

    13 #ifdef G_OS_WIN32

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

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

    16 #define pipe(fds) _pipe(fds, 4096, _O_BINARY)

    17 #endif

    18 

    19 

    20 

    21 #ifdef __SYMBIAN32__

    22 #include <glib_global.h>

    23 #include "mrt2_glib2_test.h"

    24 #endif /*__SYMBIAN32__*/

    25 

    26 #ifndef __SYMBIAN32__

    27 #define ITERS 10000

    28 #else

    29 #define ITERS 100

    30 #endif

    31 #define INCREMENT 10

    32 #define NTHREADS 4

    33 #define NCRAWLERS 4

    34 #define CRAWLER_TIMEOUT_RANGE 40

    35 #define RECURSER_TIMEOUT 50

    36 

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

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

    39  * be locked while the context array mutex is locked

    40  */

    41 GPtrArray *context_array;

    42 GMutex *context_array_mutex;

    43 GCond *context_array_cond;

    44 

    45 GMainLoop *main_loop;

    46 

    47 G_LOCK_DEFINE_STATIC (crawler_array_lock);

    48 GPtrArray *crawler_array;

    49 

    50 typedef struct _AddrData AddrData;

    51 typedef struct _TestData TestData;

    52 

    53 struct _AddrData

    54 {

    55   GMainLoop *loop;

    56   GIOChannel *dest;

    57   gint count;

    58 };

    59 

    60 struct _TestData

    61 {

    62   gint current_val;

    63   gint iters;

    64   GIOChannel *in;

    65 };

    66 

    67 static void cleanup_crawlers (GMainContext *context);

    68 

    69 gboolean

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

    71 {

    72   gsize bytes_read = 0;

    73   gsize count;

    74   GIOError err;

    75 

    76   while (bytes_read < len)

    77     {

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

    79       if (err)

    80 	{

    81 	  if (err != G_IO_ERROR_AGAIN)

    82 	    return FALSE;

    83 	}

    84       else if (count == 0)

    85 	return FALSE;

    86 

    87       bytes_read += count;

    88     }

    89 

    90   return TRUE;

    91 }

    92 

    93 gboolean

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

    95 {

    96   gsize bytes_written = 0;

    97   gsize count;

    98   GIOError err;

    99 

   100   while (bytes_written < len)

   101     {

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

   103       if (err && err != G_IO_ERROR_AGAIN)

   104 	return FALSE;

   105 

   106       bytes_written += count;

   107     }

   108 

   109   return TRUE;

   110 }

   111 

   112 gboolean

   113 adder_callback (GIOChannel   *source,

   114 		GIOCondition  condition,

   115 		gpointer      data)

   116 {

   117   char buf1[32];

   118   char buf2[32];

   119 

   120   char result[32];

   121 

   122   AddrData *addr_data = data;

   123 

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

   125       !read_all (source, buf2, 32))

   126     {

   127       g_main_loop_quit (addr_data->loop);

   128       return FALSE;

   129     }

   130 

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

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

   133   

   134   return TRUE;

   135 }

   136 

   137 gboolean

   138 timeout_callback (gpointer data)

   139 {

   140   AddrData *addr_data = data;

   141 

   142   addr_data->count++;

   143   

   144   return TRUE;

   145 }

   146 

   147 gpointer

   148 adder_thread (gpointer data)

   149 {

   150   GMainContext *context;

   151   GSource *adder_source;

   152   GSource *timeout_source;

   153 

   154   GIOChannel **channels = data;

   155   AddrData addr_data;

   156 

   157   context = g_main_context_new ();

   158 

   159   g_mutex_lock (context_array_mutex);

   160   

   161   g_ptr_array_add (context_array, context);

   162 

   163   if (context_array->len == NTHREADS)

   164     g_cond_broadcast (context_array_cond);

   165   

   166   g_mutex_unlock (context_array_mutex);

   167 

   168   addr_data.dest = channels[1];

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

   170   addr_data.count = 0;

   171   

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

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

   174   g_source_attach (adder_source, context);

   175   g_source_unref (adder_source);

   176 

   177   timeout_source = g_timeout_source_new (10);

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

   179   g_source_set_priority (timeout_source, G_PRIORITY_HIGH);

   180   g_source_attach (timeout_source, context);

   181   g_source_unref (timeout_source);

   182 

   183   g_main_loop_run (addr_data.loop);

   184 

   185   g_io_channel_unref (channels[0]);

   186   g_io_channel_unref (channels[1]);

   187 

   188   g_free (channels);

   189   

   190   g_main_loop_unref (addr_data.loop);

   191 

   192 #ifdef VERBOSE

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

   194 #endif

   195 

   196   g_mutex_lock (context_array_mutex);

   197   g_ptr_array_remove (context_array, context);

   198   if (context_array->len == 0)

   199     g_main_loop_quit (main_loop);

   200   g_mutex_unlock (context_array_mutex);

   201 

   202   cleanup_crawlers (context);

   203 

   204   return NULL;

   205 }

   206 

   207 void

   208 io_pipe (GIOChannel **channels)

   209 {

   210   gint fds[2];

   211 

   212   if (pipe(fds) < 0)

   213     {

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

   215       exit (1);

   216     }

   217 

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

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

   220 

   221   g_io_channel_set_close_on_unref (channels[0], TRUE);

   222   g_io_channel_set_close_on_unref (channels[1], TRUE);

   223 }

   224 

   225 void

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

   227 {

   228   char buf1[32];

   229   char buf2[32];

   230 

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

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

   233 

   234   write_all (in, buf1, 32);

   235   write_all (in, buf2, 32);

   236 }

   237 

   238 gboolean

   239 adder_response (GIOChannel   *source,

   240 		GIOCondition  condition,

   241 		gpointer      data)

   242 {

   243   char result[32];

   244   TestData *test_data = data;

   245   

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

   247     return FALSE;

   248 

   249   test_data->current_val = atoi (result);

   250   test_data->iters--;

   251 

   252   if (test_data->iters == 0)

   253     {

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

   255 	{

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

   257 		   test_data->current_val, ITERS * INCREMENT);

   258 	  exit (1);

   259 	}

   260 

   261       g_io_channel_unref (source);

   262       g_io_channel_unref (test_data->in);

   263 

   264       g_free (test_data);

   265       

   266       return FALSE;

   267     }

   268   

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

   270 

   271   return TRUE;

   272 }

   273 

   274 void

   275 create_adder_thread (void)

   276 {

   277   GError *err = NULL;

   278   TestData *test_data;

   279   

   280   GIOChannel *in_channels[2];

   281   GIOChannel *out_channels[2];

   282 

   283   GIOChannel **sub_channels;

   284 

   285   sub_channels = g_new (GIOChannel *, 2);

   286 

   287   io_pipe (in_channels);

   288   io_pipe (out_channels);

   289 

   290   sub_channels[0] = in_channels[0];

   291   sub_channels[1] = out_channels[1];

   292 

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

   294 

   295   if (err)

   296     {

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

   298       exit (1);

   299     }

   300 

   301   test_data = g_new (TestData, 1);

   302   test_data->in = in_channels[1];

   303   test_data->current_val = 0;

   304   test_data->iters = ITERS;

   305 

   306   g_io_add_watch (out_channels[0], G_IO_IN | G_IO_HUP | G_IO_PRI,

   307 		  adder_response, test_data);

   308   

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

   310 }

   311 

   312 static void create_crawler (void);

   313 

   314 static void

   315 remove_crawler (void)

   316 {

   317   GSource *other_source;

   318 

   319   if (crawler_array->len > 0)

   320     {

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

   322       g_source_destroy (other_source);

   323       g_assert (g_ptr_array_remove_fast (crawler_array, other_source));

   324     }

   325 }

   326 

   327 static gint

   328 crawler_callback (gpointer data)

   329 {

   330   GSource *source = data;

   331 

   332   G_LOCK (crawler_array_lock);

   333   

   334   if (!g_ptr_array_remove_fast (crawler_array, source))

   335     remove_crawler();

   336 

   337   remove_crawler();

   338   G_UNLOCK (crawler_array_lock);

   339 	    

   340   create_crawler();

   341   create_crawler();

   342 

   343   return FALSE;

   344 }

   345 

   346 static void

   347 create_crawler (void)

   348 {

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

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

   351 

   352   G_LOCK (crawler_array_lock);

   353   g_ptr_array_add (crawler_array, source);

   354   

   355   g_mutex_lock (context_array_mutex);

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

   357   g_source_unref (source);

   358   g_mutex_unlock (context_array_mutex);

   359 

   360   G_UNLOCK (crawler_array_lock);

   361 }

   362 

   363 static void

   364 cleanup_crawlers (GMainContext *context)

   365 {

   366   gint i;

   367   

   368   G_LOCK (crawler_array_lock);

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

   370     {

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

   372 	{

   373 	  g_source_destroy (g_ptr_array_remove_index (crawler_array, i));

   374 	  i--;

   375 	}

   376     }

   377   G_UNLOCK (crawler_array_lock);

   378 }

   379 

   380 static gboolean

   381 recurser_idle (gpointer data)

   382 {

   383   GMainContext *context = data;

   384   gint i;

   385 

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

   387     g_main_context_iteration (context, FALSE);

   388 

   389   return FALSE;

   390 }

   391 

   392 static gboolean

   393 recurser_start (gpointer data)

   394 {

   395   GMainContext *context;

   396   GSource *source;

   397   

   398   g_mutex_lock (context_array_mutex);

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

   400   source = g_idle_source_new ();

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

   402   g_source_attach (source, context);

   403   g_source_unref (source);

   404   g_mutex_unlock (context_array_mutex);

   405 

   406   return TRUE;

   407 }

   408 

   409 int 

   410 main (int   argc,

   411       char *argv[])

   412 {

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

   414      implementation is available */

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

   416   gint i;

   417 

   418   #ifdef __SYMBIAN32__

   419   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);

   420   g_set_print_handler(mrtPrintHandler);

   421   #endif /*__SYMBIAN32__*/

   422   g_thread_init (NULL);

   423 

   424   context_array = g_ptr_array_new ();

   425   context_array_mutex = g_mutex_new ();

   426   context_array_cond = g_cond_new (); 

   427 

   428   crawler_array = g_ptr_array_new ();

   429 

   430   main_loop = g_main_loop_new (NULL, FALSE);

   431 

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

   433     create_adder_thread ();

   434 

   435   /* Wait for all threads to start

   436    */

   437   g_mutex_lock (context_array_mutex);

   438   

   439   if (context_array->len < NTHREADS)

   440     g_cond_wait (context_array_cond, context_array_mutex);

   441   

   442   g_mutex_unlock (context_array_mutex);

   443   

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

   445     create_crawler ();

   446 

   447   g_timeout_add (RECURSER_TIMEOUT, recurser_start, NULL);

   448 

   449   g_main_loop_run (main_loop);

   450   g_main_loop_unref (main_loop);

   451 

   452 #endif

   453   #ifdef __SYMBIAN32__

   454   testResultXml("mainloop-test");

   455   #endif /* EMULATOR */

   456 

   457   return 0;

   458 }
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