1 files changed, 204 insertions, 0 deletions
diff --git a/src/array.c b/src/array.c
new file mode 100644
index 0000000..2c8127a
--- /dev/null
+++ b/src/array.c
@@ -0,0 +1,204 @@
+/* 
+*  BSD 2-Clause “Simplified” License
+*  Copyright (c) 2019, Aldrik Ramaekers, aldrik.ramaekers@protonmail.com
+*  All rights reserved.
+*/
+
+array array_create(u64 entry_size)
+{
+	array new_array;
+	new_array.length = 0;
+	new_array.reserved_length = 0;
+	new_array.entry_size = entry_size;
+	new_array.data = 0;
+	new_array.reserve_jump = 1;
+	new_array.mutex = mutex_create_recursive();
+	
+	return new_array;
+}
+
+int array_push(array *array, void *data)
+{
+	assert(array);
+	assert(data);
+	assert(array->reserve_jump >= 1);
+	
+	mutex_lock(&array->mutex);
+	array->length++;
+	
+	if (!array->data)
+	{
+		array->data = mem_alloc(array->entry_size * array->reserve_jump);
+		array->reserved_length = array->reserve_jump;
+	}
+	
+	if (array->reserved_length < array->length)
+	{
+		array->reserved_length += array->reserve_jump;
+		array->data = mem_realloc(array->data, (array->reserved_length*array->entry_size));
+	}
+	
+	memcpy(array->data + ((array->length-1) * array->entry_size),
+		   data, array->entry_size);
+	
+	s32 result = array->length -1;
+	mutex_unlock(&array->mutex);
+	return result;
+}
+
+int array_push_size(array *array, void *data, s32 data_size)
+{
+	assert(array);
+	assert(data);
+	assert(array->reserve_jump >= 1);
+	
+	mutex_lock(&array->mutex);
+	array->length++;
+	
+	if (!array->data)
+	{
+		array->data = mem_alloc(array->entry_size * array->reserve_jump);
+		array->reserved_length = array->reserve_jump;
+	}
+	
+	if (array->reserved_length < array->length)
+	{
+		array->reserved_length += array->reserve_jump;
+		array->data = mem_realloc(array->data, (array->reserved_length*array->entry_size));
+	}
+	
+	memcpy(array->data + ((array->length-1) * array->entry_size),
+		   data, data_size);
+	
+	// fill remaining space with 0
+	if (array->entry_size > data_size)
+	{
+		s32 remaining = array->entry_size - data_size;
+		memset(array->data + ((array->length-1) * array->entry_size) + data_size,
+			   0, remaining);
+	}
+	
+	s32 result = array->length -1;
+	mutex_unlock(&array->mutex);
+	return result;
+}
+
+void array_reserve(array *array, u32 reserve_count)
+{
+	assert(array);
+	
+	mutex_lock(&array->mutex);
+	u32 reserved_count = array->reserved_length - array->length;
+	reserve_count -= reserved_count;
+	
+	if (reserve_count > 0)
+	{
+		array->reserved_length += reserve_count;
+		
+		if (array->data)
+			array->data = mem_realloc(array->data, (array->reserved_length*array->entry_size));
+		else
+			array->data = mem_alloc(array->reserved_length*array->entry_size);
+	}
+	mutex_unlock(&array->mutex);
+}
+
+void array_remove_at(array *array, u32 at)
+{
+	assert(array);
+	assert(at >= 0);
+	assert(at < array->length);
+	
+	mutex_lock(&array->mutex);
+	if (array->length > 1)
+	{
+		int offset = at * array->entry_size;
+		int size = (array->length - at - 1) * array->entry_size;
+		memcpy(array->data + offset,
+			   array->data + offset + array->entry_size,
+			   size);
+		
+		//array->data = realloc(array->data, array->length * array->entry_size);
+	}
+	
+	array->length--;
+	mutex_unlock(&array->mutex);
+}
+
+void array_remove(array *array, void *ptr)
+{
+	mutex_lock(&array->mutex);
+	int offset = ptr - array->data;
+	int at = offset / array->entry_size;
+	array_remove_at(array, at);
+	mutex_unlock(&array->mutex);
+}
+
+void array_remove_by(array *array, void *data)
+{
+	assert(array);
+	
+	mutex_lock(&array->mutex);
+	for (int i = 0; i < array->length; i++)
+	{
+		void *d = array_at(array, i);
+		if (memcmp(d, data, array->entry_size) == 0)
+		{
+			array_remove_at(array, i);
+			return;
+		}
+	}
+	mutex_unlock(&array->mutex);
+}
+
+void *array_at(array *array, u32 at)
+{
+	mutex_lock(&array->mutex);
+	assert(array);
+	assert(at >= 0);
+	assert(at < array->length);
+	
+	void *result =  array->data + (at * array->entry_size);
+	mutex_unlock(&array->mutex);
+	return result;
+}
+
+void array_destroy(array *array)
+{
+	assert(array);
+	mem_free(array->data);
+	mutex_destroy(&array->mutex);
+}
+
+void array_swap(array *array, u32 swap1, u32 swap2)
+{
+	assert(array);
+	assert(swap2 >= 0);
+	assert(swap2 < array->length);
+	if (swap1 == swap2) return;
+	
+	void *swap1_at = array_at(array, swap1);
+	void *swap2_at = array_at(array, swap2);
+	
+	mutex_lock(&array->mutex);
+	char swap1_buffer[array->entry_size];
+	memcpy(swap1_buffer, swap1_at, array->entry_size);
+	memcpy(swap1_at, swap2_at, array->entry_size);
+	memcpy(swap2_at, swap1_buffer, array->entry_size);
+	mutex_unlock(&array->mutex);
+}
+
+array array_copy(array *arr)
+{
+	array new_array;
+	new_array.length = arr->length;
+	new_array.reserved_length = arr->reserved_length;
+	new_array.entry_size = arr->entry_size;
+	new_array.data = mem_alloc(new_array.entry_size*new_array.reserved_length);
+	new_array.mutex = mutex_create();
+	
+	mutex_lock(&arr->mutex);
+	memcpy(new_array.data, arr->data, new_array.entry_size*new_array.reserved_length);
+	mutex_unlock(&arr->mutex);
+	return new_array;
+}
+\ No newline at end of file