FranFin
commented
4 years ago @KevinHwangAi Hi! Thank you for your interest in micro-ROS. Notice that we’ll discuss the recent contributions and developments in the next Embedded WG meeting. You’re invited to bring your micro-ROS related issue to this platform. We’ll be very happy to have you join us and discuss your questions with the community.
pablogs9
I try subscribe Joy's message or other message which include the sequence element,but all the message fail to subscribe and arise error :
error in rcl_take: Typesupport desserialize error.
I checked the joint_state__type_support_c.c file and found some parts of the file are incomplete, here is the deserialize function, and the name field is empty:
static bool _JointStatecdr_deserialize( ucdrBuffer cdr, void untyped_ros_message) { (void) cdr; bool rv = false; if (!untyped_ros_message) { fprintf(stderr, "ros message handle is null\n"); return false; } _JointStateros_msg_type ros_message = (_JointState__ros_msg_type )(untyped_ros_message); (void)ros_message; // Field name: header rv = ((const message_type_support_callbacks_t *)( ROSIDL_TYPESUPPORT_INTERFACE__MESSAGE_SYMBOL_NAME(rosidl_typesupport_microxrcedds_c, std_msgs, msg, Header )()->data))->cdr_deserialize(cdr, &ros_message->header); // Field name: name // Is it necessary? { } // Field name: position { uint32_t size; const size_t capacity = ros_message->position.capacity; rv = ucdr_deserialize_sequence_double(cdr, ros_message->position.data, capacity, &size); } // Field name: velocity { uint32_t size; const size_t capacity = ros_message->velocity.capacity; rv = ucdr_deserialize_sequence_double(cdr, ros_message->velocity.data, capacity, &size); } // Field name: effort { uint32_t size; const size_t capacity = ros_message->effort.capacity; rv = ucdr_deserialize_sequence_double(cdr, ros_message->effort.data, capacity, &size); } return rv; } I add the code to “Field name: name” :
const size_t capacity = ros_message->name.capacity; rv = ucdr_deserialize_string(cdr, ros_message->name.data, capacity); if (rv) { ros_message->name.size = strlen(ros_message->name.data); } But still not working.
What can I do now?