Data Fields
uint32_t	_reserved
uint32_t	abi_version
void(*	close )(void *user_data)
rcl_ret_t(*	open )(void user_data, const void params)
int32_t(*	read )(void user_data, uint8_t buf, size_t len, uint32_t timeout_ms)
void *	user_data
rcl_ret_t(*	write )(void user_data, const uint8_t buf, size_t len)

Detailed Description

Phase 115.C — C-side mirror of nros_rmw::custom_transport::NrosTransportOps. Same #[repr(C)] layout — single ABI, no parallel definitions.

Field semantics:

abi_version: must be [NROS_TRANSPORT_OPS_ABI_VERSION_V1] (Phase 115.A.2).
_reserved: padding for future minor-version detection. Set to 0.
user_data: opaque caller context, threaded back into every callback as the first argument. Lifetime: must outlive the transport's active period (i.e. until close returns).
open: open the underlying medium. params is opaque per-transport metadata supplied by the caller (e.g. UART baud rate). May be NULL. Returns 0 on success, negative rcl_ret_t on failure.
close: tear the transport down. Complement of open.
write: send len bytes from buf. Returns 0 on success, negative rcl_ret_t on failure.
read: receive up to len bytes within timeout_ms. Returns the non-negative byte count on success, negative rcl_ret_t on error / timeout.

Field Documentation

uint32_t nros_transport_ops_t::_reserved

uint32_t nros_transport_ops_t::abi_version

void(* nros_transport_ops_t::close) (void *user_data)

rcl_ret_t(* nros_transport_ops_t::open) (void *user_data, const void *params)

int32_t(* nros_transport_ops_t::read) (void *user_data, uint8_t *buf, size_t len, uint32_t timeout_ms)

void* nros_transport_ops_t::user_data

rcl_ret_t(* nros_transport_ops_t::write) (void *user_data, const uint8_t *buf, size_t len)

The documentation for this struct was generated from the following file: