Function rcl_node_type_cache_get_type_info

Function Documentation

rcl_ret_t rcl_node_type_cache_get_type_info(const rcl_node_t *node, const rosidl_type_hash_t *type_hash, rcl_type_info_t *type_info)

Retrieve type information from the node’s type cache.

This function returns the desired type information from the node’s type cache

The type_info field must point to an allocated rcl_type_info_t object to which the type information will be written.

Attribute

Adherence

Allocates Memory

No

Thread-Safe

No

Uses Atomics

No

Lock-Free

Yes

Parameters:

  • node – [in] the handle to the node whose type cache should be queried

  • type_hash – [in] type hash

  • type_info – [out] pointer to the type info struct that will be populated

Returns:

RCL_RET_OK if type information was retrieved successfully

Returns:

RCL_RET_INVALID_ARGUMENT if any arguments are invalid, or

Returns:

RCL_RET_NODE_INVALID if the given node is invalid, or

Returns:

RCL_RET_NOT_INIT if node’s type cache has not been initialized, or

Returns:

RCL_RET_ERROR if an unspecified error occurs.