void SoundDecoder_FreeSample(SoundDecoder_Sample* sound_sample)
{
SoundDecoder_SampleInternal* sample_internal;
LinkedListNode* the_node;
/* Quit unloads all samples, so it is not possible to free a sample
* when not initialized.
*/
if(0 == s_isInitialized)
{
return;
}
if(sound_sample == NULL)
{
return;
}
/* SDL_sound keeps a linked list of all the loaded samples.
* We want to remove the current sample from that list.
*/
the_node = LinkedList_Find(s_listOfLoadedSamples, sound_sample, NULL);
if(NULL == the_node)
{
SoundDecoder_SetError("SoundDecoder_FreeSample: Internal Error, sample does not exist in linked list.");
return;
}
LinkedList_Remove(s_listOfLoadedSamples, the_node);
sample_internal = (SoundDecoder_SampleInternal*)sound_sample->opaque;
/* Ugh...SDL_sound has a lot of pointers.
* I hope I didn't miss any dynamic memory.
*/
/* Call close on the decoder */
sample_internal->funcs->close(sound_sample);
if(NULL != sample_internal->rw)
{
sample_internal->rw->close(sample_internal->rw);
}
/* Ooops. The public buffer might be shared with the internal buffer.
* Make sure to not accidentally double delete.
*/
if((NULL != sample_internal->buffer)
&& (sample_internal->buffer != sound_sample->buffer)
)
{
free(sample_internal->buffer);
}
free(sample_internal);
if(NULL != sound_sample->buffer)
{
free(sound_sample->buffer);
}
free(sound_sample);
}
int TestLinkedList(int argc, char* argv[])
{
int count;
int number;
wLinkedList* list;
list = LinkedList_New();
LinkedList_AddFirst(list, (void*) (size_t) 1);
LinkedList_AddLast(list, (void*) (size_t) 2);
LinkedList_AddLast(list, (void*) (size_t) 3);
count = LinkedList_Count(list);
if (count != 3)
{
printf("LinkedList_Count: expected %d, actual: %d\n", 3, count);
return -1;
}
LinkedList_Enumerator_Reset(list);
while (LinkedList_Enumerator_MoveNext(list))
{
number = (int) (size_t) LinkedList_Enumerator_Current(list);
printf("\t%d\n", number);
}
printf("\n");
printf("LinkedList First: %d Last: %d\n",
(int) (size_t) LinkedList_First(list), (int) (size_t) LinkedList_Last(list));
LinkedList_RemoveFirst(list);
LinkedList_RemoveLast(list);
count = LinkedList_Count(list);
if (count != 1)
{
printf("LinkedList_Count: expected %d, actual: %d\n", 1, count);
return -1;
}
LinkedList_Enumerator_Reset(list);
while (LinkedList_Enumerator_MoveNext(list))
{
number = (int) (size_t) LinkedList_Enumerator_Current(list);
printf("\t%d\n", number);
}
printf("\n");
printf("LinkedList First: %d Last: %d\n",
(int) (size_t) LinkedList_First(list), (int) (size_t) LinkedList_Last(list));
LinkedList_RemoveFirst(list);
LinkedList_RemoveLast(list);
count = LinkedList_Count(list);
if (count != 0)
{
printf("LinkedList_Count: expected %d, actual: %d\n", 0, count);
return -1;
}
LinkedList_AddFirst(list, (void*) (size_t) 4);
LinkedList_AddLast(list, (void*) (size_t) 5);
LinkedList_AddLast(list, (void*) (size_t) 6);
count = LinkedList_Count(list);
if (count != 3)
{
printf("LinkedList_Count: expected %d, actual: %d\n", 3, count);
return -1;
}
LinkedList_Enumerator_Reset(list);
while (LinkedList_Enumerator_MoveNext(list))
{
number = (int) (size_t) LinkedList_Enumerator_Current(list);
printf("\t%d\n", number);
}
printf("\n");
printf("LinkedList First: %d Last: %d\n",
(int) (size_t) LinkedList_First(list), (int) (size_t) LinkedList_Last(list));
LinkedList_Remove(list, (void*) (size_t) 5);
LinkedList_Enumerator_Reset(list);
while (LinkedList_Enumerator_MoveNext(list))
{
number = (int) (size_t) LinkedList_Enumerator_Current(list);
printf("\t%d\n", number);
}
printf("\n");
printf("LinkedList First: %d Last: %d\n",
(int) (size_t) LinkedList_First(list), (int) (size_t) LinkedList_Last(list));
LinkedList_Free(list);
/* Test enumerator robustness */
/* enumerator on an empty list */
list = LinkedList_New();
LinkedList_Enumerator_Reset(list);
while (LinkedList_Enumerator_MoveNext(list))
{
number = (int) (size_t) LinkedList_Enumerator_Current(list);
printf("\t%d\n", number);
}
printf("\n");
LinkedList_Free(list);
/* Use an enumerator without reset */
list = LinkedList_New();
LinkedList_AddFirst(list, (void*) (size_t) 4);
LinkedList_AddLast(list, (void*) (size_t) 5);
LinkedList_AddLast(list, (void*) (size_t) 6);
while (LinkedList_Enumerator_MoveNext(list))
{
number = (int) (size_t) LinkedList_Enumerator_Current(list);
printf("\t%d\n", number);
}
printf("\n");
LinkedList_Free(list);
return 0;
}