// 创建事件包的步骤
// 1. 使用create_params_block添加第一个参数
// 2. add_next_param直到添加完全部参数
// 3. create_event_package创建数据包，并delete_params_block来释放params_block
struct sub_device_buffer * FUNCTION_ATTRIBUTE construct_sub_device_event()
{
struct sub_device_buffer *event_buffer = NULL;
struct TLVs *params_block = NULL;
uint16_t event_num = 0x0911;
uint16_t flag = 0x0011;
uint32_t event_param1 = 0xa1b2c3d4;
uint8_t event_param2 = 0xc1;
char event_param3[] = "test data";
event_buffer = create_event_package(flag);
if (NULL == event_buffer)
{
pd_printf("Create event package failed.");
return NULL;
}
params_block = create_params_block();
if (params_block == NULL)
{
pd_printf("Create first tlv param failed.\n");
return NULL;
}
if (add_next_param(params_block, TLV_TYPE_UINT8, sizeof(event_param2), &event_param2))
{
delete_params_block(params_block);
pd_printf("Add next tlv param failed.\n");
return NULL;
}
if (add_next_param(params_block, TLV_TYPE_UINT32, sizeof(event_param1), &event_param1))
{
delete_params_block(params_block);
pd_printf("Add next tlv param failed.\n");
return NULL;
}
if (add_next_param(params_block, TLV_TYPE_BYTES, sizeof(event_param3), event_param3))
{
delete_params_block(params_block);
pd_printf("Add next tlv param failed.\n");
return NULL;
}
// 3. create event with flag, priority and tlv params
add_event(event_buffer, event_num, 0, params_block);
delete_params_block(params_block);
finish_package(event_buffer);
show_package(event_buffer->buffer, event_buffer->buffer_length);
return event_buffer;
}
static void ICACHE_FLASH_ATTR
send_current_status()
{
struct sub_device_buffer* data_buffer;
data_buffer = create_data_package(0);
if(NULL == data_buffer)
{
PRINTF("create data package error\n");
return;
}
pando_object* obj = NULL;
pando_objects_iterator* it = create_pando_objects_iterator();
while(obj = pando_objects_iterator_next(it)){
PARAMS* params = create_params_block();
if (params == NULL)
{
PRINTF("Create params block failed.\n");
return ;
}
obj->pack(params);
int ret = add_next_property(data_buffer, obj->no, params);
if (ret != 0)
{
PRINTF("add_next_property failed.");
}
delete_params_block(params);
}
delete_pando_objects_iterator(it);
channel_send_to_device(PANDO_CHANNEL_PORT_1, data_buffer->buffer, data_buffer->buffer_length);
show_package(data_buffer->buffer, data_buffer->buffer_length);
delete_device_package(data_buffer);
}
struct sub_device_buffer * FUNCTION_ATTRIBUTE construct_sub_device_data()
{
struct sub_device_buffer *data_buffer = NULL;
struct TLVs *params_block = NULL;
int ret = 0;
uint16_t property_num = 0x1516;
uint16_t property_num2 = 0x1122;
uint16_t flag = 0;
uint32_t data_param1 = 0xa1b2c3d4;
uint8_t data_param2 = 0xc1;
char data_param3[] = "test data";
//create buffer, remember delete
data_buffer = create_data_package(flag);
if (data_buffer == NULL)
{
pd_printf("Create data package failed.");
}
params_block = create_params_block();
if (params_block == NULL)
{
pd_printf("Create first tlv param failed.\n");
return NULL;
}
if (add_next_uint32(params_block, data_param1))
{
delete_params_block(params_block);
pd_printf("Add next tlv param failed.\n");
return NULL;
}
if (add_next_uint8(params_block, data_param2))
{
delete_params_block(params_block);
pd_printf("Add next tlv param failed.\n");
return NULL;
}
if (add_next_bytes(params_block, strlen(data_param3), data_param3))
{
delete_params_block(params_block);
pd_printf("Add next tlv param failed.\n");
return NULL;
}
add_next_property(data_buffer, property_num, params_block);
// once the params block has been added to data package
//you must delete it even you are going to add another block to the package
delete_params_block(params_block);
//add different property
params_block = create_params_block();
if (params_block == NULL)
{
pd_printf("Create first tlv param failed.\n");
return NULL;
}
if (add_next_uint8(params_block, data_param2))
{
delete_params_block(params_block);
pd_printf("Add next tlv param failed.\n");
return NULL;
}
if (add_next_bytes(params_block, strlen(data_param3), data_param3))
{
delete_params_block(params_block);
pd_printf("Add next tlv param failed.\n");
return NULL;
}
ret = add_next_property(data_buffer, property_num2, params_block);
if (ret != 0)
{
delete_params_block(params_block);
pd_printf("add_next_property failed.");
return NULL;
}
//do not forget to delete params block again
delete_params_block(params_block);
finish_package(data_buffer);
show_package(data_buffer->buffer, data_buffer->buffer_length);
return data_buffer;
}