/*

* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

#undef G_DISABLE_ASSERT

#undef G_LOG_DOMAIN

#include <glib.h>

#include <stdio.h>

#ifdef SYMBIAN

#include <glib_global.h>

#include "mrt2_glib2_test.h"

#endif /*SYMBIAN*/

/* GMutex */

static GMutex* test_g_mutex_mutex = NULL;

static guint test_g_mutex_int = 0;

static gboolean test_g_mutex_thread_ready;

G_LOCK_DEFINE_STATIC (test_g_mutex);

static gpointer

test_g_mutex_thread (gpointer data)

{

  g_assert (GPOINTER_TO_INT (data) == 42);

  g_assert (g_mutex_trylock (test_g_mutex_mutex) == FALSE);

  g_assert (G_TRYLOCK (test_g_mutex) == FALSE);

  test_g_mutex_thread_ready = TRUE;

  g_mutex_lock (test_g_mutex_mutex);

  g_assert (test_g_mutex_int == 42);

  g_mutex_unlock (test_g_mutex_mutex);

  return GINT_TO_POINTER (41);

}

static void

test_g_mutex (void)

{

  GThread *thread;

  test_g_mutex_mutex = g_mutex_new ();

  g_assert (g_mutex_trylock (test_g_mutex_mutex));

  g_assert (G_TRYLOCK (test_g_mutex));

  test_g_mutex_thread_ready = FALSE;

  thread = g_thread_create (test_g_mutex_thread, GINT_TO_POINTER (42),

			    TRUE, NULL);

  /* This busy wait is only for testing purposes and not an example of

   * good code!*/

  while (!test_g_mutex_thread_ready)

    g_usleep (G_USEC_PER_SEC / 5);

  test_g_mutex_int = 42;

  G_UNLOCK (test_g_mutex);

  g_mutex_unlock (test_g_mutex_mutex);

  g_assert (GPOINTER_TO_INT (g_thread_join (thread)) == 41);

  g_mutex_free (test_g_mutex_mutex);

}

/* GStaticRecMutex */

static GStaticRecMutex test_g_static_rec_mutex_mutex = G_STATIC_REC_MUTEX_INIT;

static guint test_g_static_rec_mutex_int = 0;

static gboolean test_g_static_rec_mutex_thread_ready;

static gpointer

test_g_static_rec_mutex_thread (gpointer data)

{

  g_assert (GPOINTER_TO_INT (data) == 42);

  g_assert (g_static_rec_mutex_trylock (&test_g_static_rec_mutex_mutex) 

	    == FALSE);

  test_g_static_rec_mutex_thread_ready = TRUE;

  g_static_rec_mutex_lock (&test_g_static_rec_mutex_mutex);

  g_static_rec_mutex_lock (&test_g_static_rec_mutex_mutex);

  g_assert (test_g_static_rec_mutex_int == 42);

  test_g_static_rec_mutex_thread_ready = FALSE;

  g_static_rec_mutex_unlock (&test_g_static_rec_mutex_mutex);

  g_static_rec_mutex_unlock (&test_g_static_rec_mutex_mutex);

  g_thread_exit (GINT_TO_POINTER (43));

  g_assert_not_reached ();

  return NULL;

}

static void

test_g_static_rec_mutex (void)

{

  GThread *thread;

  g_assert (g_static_rec_mutex_trylock (&test_g_static_rec_mutex_mutex));

  test_g_static_rec_mutex_thread_ready = FALSE;

  thread = g_thread_create (test_g_static_rec_mutex_thread, 

			    GINT_TO_POINTER (42), TRUE, NULL);

  /* This busy wait is only for testing purposes and not an example of

   * good code!*/

  while (!test_g_static_rec_mutex_thread_ready)

    g_usleep (G_USEC_PER_SEC / 5);

  g_assert (g_static_rec_mutex_trylock (&test_g_static_rec_mutex_mutex));

  test_g_static_rec_mutex_int = 41;

  g_static_rec_mutex_unlock (&test_g_static_rec_mutex_mutex);

  test_g_static_rec_mutex_int = 42;  

  g_static_rec_mutex_unlock (&test_g_static_rec_mutex_mutex);

  /* This busy wait is only for testing purposes and not an example of

   * good code!*/

  while (test_g_static_rec_mutex_thread_ready)

    g_usleep (G_USEC_PER_SEC / 5);

  g_static_rec_mutex_lock (&test_g_static_rec_mutex_mutex);

  test_g_static_rec_mutex_int = 0;  

  g_static_rec_mutex_unlock (&test_g_static_rec_mutex_mutex);

  g_assert (GPOINTER_TO_INT (g_thread_join (thread)) == 43);

}

/* GStaticPrivate */

#define THREADS 10

static GStaticPrivate test_g_static_private_private1 = G_STATIC_PRIVATE_INIT;

static GStaticPrivate test_g_static_private_private2 = G_STATIC_PRIVATE_INIT;

static GStaticMutex test_g_static_private_mutex = G_STATIC_MUTEX_INIT;

static guint test_g_static_private_counter = 0;

static guint test_g_static_private_ready = 0;

static gpointer

test_g_static_private_constructor (void)

{

  g_static_mutex_lock (&test_g_static_private_mutex);

  test_g_static_private_counter++;

  g_static_mutex_unlock (&test_g_static_private_mutex);  

  return g_new (guint,1);

}

static void

test_g_static_private_destructor (gpointer data)

{

  g_static_mutex_lock (&test_g_static_private_mutex);

  test_g_static_private_counter--;

  g_static_mutex_unlock (&test_g_static_private_mutex);  

  g_free (data);

}

static gpointer

test_g_static_private_thread (gpointer data)

{

  guint number = GPOINTER_TO_INT (data);

  guint i;

  guint *private1, *private2;

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

    {

      number = number * 11 + 1; /* A very simple and bad RNG ;-) */

      private1 = g_static_private_get (&test_g_static_private_private1);

      if (!private1 || number % 7 > 3)

	{

	  private1 = test_g_static_private_constructor ();

	  g_static_private_set (&test_g_static_private_private1, private1,

				test_g_static_private_destructor);

	}

      *private1 = number;

      private2 = g_static_private_get (&test_g_static_private_private2);

      if (!private2 || number % 13 > 5)

	{

	  private2 = test_g_static_private_constructor ();

	  g_static_private_set (&test_g_static_private_private2, private2,

				test_g_static_private_destructor);

	}

      *private2 = number * 2;

      g_usleep (G_USEC_PER_SEC / 5);

      g_assert (number == *private1);

      g_assert (number * 2 == *private2);      

    }

  g_static_mutex_lock (&test_g_static_private_mutex);

  test_g_static_private_ready++;

  g_static_mutex_unlock (&test_g_static_private_mutex);  

  /* Busy wait is not nice but that's just a test */

  while (test_g_static_private_ready != 0)

    g_usleep (G_USEC_PER_SEC / 5);  

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

    {

      private2 = g_static_private_get (&test_g_static_private_private2);

      number = number * 11 + 1; /* A very simple and bad RNG ;-) */

      if (!private2 || number % 13 > 5)

	{

	  private2 = test_g_static_private_constructor ();

	  g_static_private_set (&test_g_static_private_private2, private2,

				test_g_static_private_destructor);

	}      

      *private2 = number * 2;

      g_usleep (G_USEC_PER_SEC / 5);

      g_assert (number * 2 == *private2);      

    }

  return GINT_TO_POINTER (GPOINTER_TO_INT (data) * 3);

}

static void

test_g_static_private (void)

{

  GThread *threads[THREADS];

  guint i;

  test_g_static_private_ready = 0;

  for (i = 0; i < THREADS; i++)

    {

      threads[i] = g_thread_create (test_g_static_private_thread, 

				    GINT_TO_POINTER (i), TRUE, NULL);      

    }

  /* Busy wait is not nice but that's just a test */

  while (test_g_static_private_ready != THREADS)

    g_usleep (G_USEC_PER_SEC / 5);

  /* Reuse the static private */

  g_static_private_free (&test_g_static_private_private2);

  g_static_private_init (&test_g_static_private_private2);

  test_g_static_private_ready = 0;

  for (i = 0; i < THREADS; i++)

    g_assert (GPOINTER_TO_INT (g_thread_join (threads[i])) == i * 3);

  g_assert (test_g_static_private_counter == 0); 

}

/* GStaticRWLock */

/* -1 = writing; >0 = # of readers */

static gint test_g_static_rw_lock_state = 0; 

G_LOCK_DEFINE (test_g_static_rw_lock_state);

static gboolean test_g_static_rw_lock_run = TRUE; 

static GStaticRWLock test_g_static_rw_lock_lock = G_STATIC_RW_LOCK_INIT;

static gpointer

test_g_static_rw_lock_thread (gpointer data)

{

  while (test_g_static_rw_lock_run)

    {

      if (g_random_double() > .2) /* I'm a reader */

	{

	  if (g_random_double() > .2) /* I'll block */

	    g_static_rw_lock_reader_lock (&test_g_static_rw_lock_lock);

	  else /* I'll only try */

	    if (!g_static_rw_lock_reader_trylock (&test_g_static_rw_lock_lock))

	      continue;

	  G_LOCK (test_g_static_rw_lock_state);

	  g_assert (test_g_static_rw_lock_state >= 0);

	  test_g_static_rw_lock_state++;

	  G_UNLOCK (test_g_static_rw_lock_state);

	  g_usleep (g_random_int_range (20,1000));

	  G_LOCK (test_g_static_rw_lock_state);

	  test_g_static_rw_lock_state--;

	  G_UNLOCK (test_g_static_rw_lock_state);

	  g_static_rw_lock_reader_unlock (&test_g_static_rw_lock_lock);

	}

      else /* I'm a writer */

	{

	  if (g_random_double() > .2) /* I'll block */ 

	    g_static_rw_lock_writer_lock (&test_g_static_rw_lock_lock);

	  else /* I'll only try */

	    if (!g_static_rw_lock_writer_trylock (&test_g_static_rw_lock_lock))

	      continue;

	  G_LOCK (test_g_static_rw_lock_state);

	  g_assert (test_g_static_rw_lock_state == 0);

	  test_g_static_rw_lock_state = -1;

	  G_UNLOCK (test_g_static_rw_lock_state);

	  g_usleep (g_random_int_range (20,1000));

	  G_LOCK (test_g_static_rw_lock_state);

	  test_g_static_rw_lock_state = 0;

	  G_UNLOCK (test_g_static_rw_lock_state);

	  g_static_rw_lock_writer_unlock (&test_g_static_rw_lock_lock);

	}

    }

  return NULL;

}

static void

test_g_static_rw_lock ()

{

  GThread *threads[THREADS];

  guint i;

  for (i = 0; i < THREADS; i++)

    {

      threads[i] = g_thread_create (test_g_static_rw_lock_thread, 

				    NULL, TRUE, NULL);      

    }

  g_usleep (G_USEC_PER_SEC * 5);

  test_g_static_rw_lock_run = FALSE;

  for (i = 0; i < THREADS; i++)

    {

      g_thread_join (threads[i]);

    }

  g_assert (test_g_static_rw_lock_state == 0);

}

#define G_ONCE_SIZE 100

#define G_ONCE_THREADS 10

G_LOCK_DEFINE (test_g_once);

static guint test_g_once_guint_array[G_ONCE_SIZE];

static GOnce test_g_once_array[G_ONCE_SIZE];

static gpointer

test_g_once_init_func(gpointer arg)

{

  guint *count = arg;

  g_usleep (g_random_int_range (20,1000));

  (*count)++;

  g_usleep (g_random_int_range (20,1000));

  return arg;

}

static gpointer

test_g_once_thread (gpointer ignore)

{

  guint i;

  G_LOCK (test_g_once);

  /* Don't start before all threads are created */

  G_UNLOCK (test_g_once);

  for (i = 0; i < 1000; i++)

    {

      guint pos = g_random_int_range (0, G_ONCE_SIZE);

      gpointer ret = g_once (test_g_once_array + pos, test_g_once_init_func, 

			     test_g_once_guint_array + pos);

      g_assert (ret == test_g_once_guint_array + pos);

    }

  /* Make sure, that all counters are touched at least once */

  for (i = 0; i < G_ONCE_SIZE; i++)

    {

      gpointer ret = g_once (test_g_once_array + i, test_g_once_init_func, 

			     test_g_once_guint_array + i);

      g_assert (ret == test_g_once_guint_array + i);

    }

  return NULL;

}

static void

test_g_thread_once (void)

{

  static GOnce once_init = G_ONCE_INIT;

  GThread *threads[G_ONCE_THREADS];

  guint i;

  for (i = 0; i < G_ONCE_SIZE; i++) 

    {

      test_g_once_array[i] = once_init;

      test_g_once_guint_array[i] = i;

    }

  G_LOCK (test_g_once);

  for (i = 0; i < G_ONCE_THREADS; i++)

    {

      threads[i] = g_thread_create (test_g_once_thread, GUINT_TO_POINTER(i%2), 

				    TRUE, NULL);

    }

  G_UNLOCK (test_g_once);

  for (i = 0; i < G_ONCE_THREADS; i++)

    {

      g_thread_join (threads[i]);

    }

  for (i = 0; i < G_ONCE_SIZE; i++) 

    {

      g_assert (test_g_once_guint_array[i] == i + 1);

    }

}

/* run all the tests */

void

run_all_tests()

{

  test_g_mutex ();

  test_g_static_rec_mutex ();

  test_g_static_private ();

  test_g_static_rw_lock ();

  test_g_thread_once ();

}

int 

main (int   argc,

      char *argv[])

{

  #ifdef SYMBIAN

  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);

  g_set_print_handler(mrtPrintHandler);

  #endif /*SYMBIAN*/

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

     implementation is available */

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

  g_thread_init (NULL);

  run_all_tests ();

  /* Now we rerun all tests, but this time we fool the system into

   * thinking, that the available thread system is not native, but

   * userprovided. */

  g_thread_use_default_impl = FALSE;

  run_all_tests ();

#endif

#ifdef SYMBIAN

  testResultXml("thread-test");

#endif /* EMULATOR */

  return 0;

}