C++ (Cpp) zone_active Examples

Example #1

File: ocmem_api.c Project: Aetos7/Matr1x

struct ocmem_buf *ocmem_allocate_nowait(int client_id, unsigned long size)
{
	bool can_block = false;
	bool can_wait = false;

	if (!check_id(client_id)) {
		pr_err("ocmem: Invalid client id: %d\n", client_id);
		return NULL;
	}

	if (!zone_active(client_id)) {
		pr_err("ocmem: Client %s (id: %d) not allowed to use OCMEM\n",
					get_name(client_id), client_id);
		return NULL;
	}

	if (size < OCMEM_MIN_ALLOC) {
		pr_err("ocmem: requested size %lx must be at least %x\n",
				size, OCMEM_MIN_ALLOC);
		return NULL;
	}

	if (!IS_ALIGNED(size, OCMEM_MIN_ALIGN)) {
		pr_err("ocmem: Invalid alignment, size must be %x aligned\n",
				OCMEM_MIN_ALIGN);
		return NULL;
	}
	return __ocmem_allocate_range(client_id, size, size,
					size, can_block, can_wait);
}

Example #2

File: ocmem_api.c Project: Aetos7/Matr1x

int ocmem_shrink(int client_id, struct ocmem_buf *buffer, unsigned long len)
{
	if (!buffer)
		return -EINVAL;
	if (len >= buffer->len)
		return -EINVAL;

	if (!zone_active(client_id)) {
		pr_err("ocmem: Client id: %s (id: %d) not allowed to use OCMEM\n",
					get_name(client_id), client_id);
		return -EINVAL;
	}

	return __ocmem_shrink(client_id, buffer, len);
}

Example #3

File: ocmem_notifier.c Project: Blackburn29/PsycoKernel

struct ocmem_notifier *ocmem_notifier_register(int client_id,
						struct notifier_block *nb)
{

	int ret = 0;
	struct ocmem_notifier *nc_hndl = NULL;

	if (!check_id(client_id)) {
		pr_err("ocmem: Invalid Client id\n");
		return NULL;
	}

	if (!zone_active(client_id)) {
		pr_err("ocmem: Client %s (id: %d) not allowed to use OCMEM\n",
					get_name(client_id), client_id);
		return NULL;
	}

	if (!nb) {
		pr_err("ocmem: Invalid Notifier Block\n");
		return NULL;
	}

	mutex_lock(&nc_lock);

	nc_hndl = &notifiers[client_id];

	if (nc_hndl->listeners >= notifier_threshold) {
		pr_err("ocmem: Max notifiers already registered\n");
		mutex_unlock(&nc_lock);
		return NULL;
	}

	ret = atomic_notifier_chain_register(&nc_hndl->nc, nb);

	if (ret < 0) {
		mutex_unlock(&nc_lock);
		return NULL;
	}

	nc_hndl->listeners++;
	pr_info("ocmem: Notifier registered for %d\n", client_id);
	mutex_unlock(&nc_lock);
	return nc_hndl;
}

Example #4

File: ocmem_api.c Project: Aetos7/Matr1x

int ocmem_map(int client_id, struct ocmem_buf *buffer,
			struct ocmem_map_list *list)
{
	int ret = 0;
	struct ocmem_handle *handle = NULL;

	if (!check_id(client_id)) {
		pr_err("ocmem: Invalid client id: %d\n", client_id);
		return -EINVAL;
	}

	if (!zone_active(client_id)) {
		pr_err("ocmem: Client id: %s (id: %d) not allowed to use OCMEM\n",
					get_name(client_id), client_id);
		return -EINVAL;
	}

	/* Asynchronous API requires notifier registration */
	if (!check_notifier(client_id)) {
		pr_err("ocmem: No notifier registered for client %d\n",
				client_id);
		return -EINVAL;
	}

	if (!buffer) {
		pr_err("ocmem: Invalid buffer\n");
		return -EINVAL;
	}

	if (pre_validate_chunk_list(list) != 0)
		return -EINVAL;

	handle = buffer_to_handle(buffer);

	if (!handle)
		return -EINVAL;

	mutex_lock(&handle->handle_mutex);
	ret = process_xfer(client_id, handle, list, TO_OCMEM);
	mutex_unlock(&handle->handle_mutex);
	return ret;
}

Example #5

File: ocmem_api.c Project: Aetos7/Matr1x

int ocmem_free(int client_id, struct ocmem_buf *buffer)
{
	if (!check_id(client_id)) {
		pr_err("ocmem: Invalid client id: %d\n", client_id);
		return -EINVAL;
	}

	if (!zone_active(client_id)) {
		pr_err("ocmem: Client %s (id: %d) not allowed to use OCMEM\n",
					get_name(client_id), client_id);
		return -EINVAL;
	}

	if (!buffer) {
		pr_err("ocmem: Invalid buffer\n");
		return -EINVAL;
	}

	return __ocmem_free(client_id, buffer);
}

Example #6

File: ocmem_api.c Project: Aetos7/Matr1x

struct ocmem_buf *ocmem_allocate_nb(int client_id, unsigned long size)
{
	bool can_block = true;
	bool can_wait = false;

	if (!check_id(client_id)) {
		pr_err("ocmem: Invalid client id: %d\n", client_id);
		return NULL;
	}

	/* Asynchronous API requires notifier registration */
	if (!check_notifier(client_id)) {
		pr_err("ocmem: No notifier registered for client %d\n",
				client_id);
		return NULL;
	}

	if (!zone_active(client_id)) {
		pr_err("ocmem: Client %s (id: %d) not allowed to use OCMEM\n",
					get_name(client_id), client_id);
		return NULL;
	}

	if (size < OCMEM_MIN_ALLOC) {
		pr_err("ocmem: requested size %lx must be at least %x\n",
				size, OCMEM_MIN_ALLOC);
		return NULL;
	}

	if (!IS_ALIGNED(size, OCMEM_MIN_ALIGN)) {
		pr_err("ocmem: Invalid alignment, args must be %x aligned\n",
				OCMEM_MIN_ALIGN);
		return NULL;
	}

	return __ocmem_allocate_range(client_id, 0, size, size,
						can_block, can_wait);

}