UDP_THREAD_MSG_TAG Struct Reference

Fixed-size UDP datagram message transferred between sender and receiver. More...

#include <udp_api.h>

Data Fields
uint32_t	uSeqNum
	Monotonically increasing sequence number; wraps at UINT32_MAX.
uint32_t	uTimestampSec
	Whole-second component of the sender's timestamp.
uint32_t	uTimestampSubSec
	Sub-second component of the sender's timestamp (units defined by application).
uint8_t	arrPayload [64]
	Fixed-size application-defined payload (64 bytes).

Detailed Description

Fixed-size UDP datagram message transferred between sender and receiver.

Every Send and Receive call transfers exactly one UDP_THREAD_MSG_T as an atomic datagram (sizeof(UDP_THREAD_MSG_T) = 76 bytes). The fixed, compile-time-known size ensures datagrams are never truncated and no partial reads or writes are possible at the message boundary.

The arr prefix on arrPayload denotes a fixed-size static array field (an extension to the project Hungarian notation convention).

Field Documentation

arrPayload

uint8_t UDP_THREAD_MSG_TAG::arrPayload[64]

Fixed-size application-defined payload (64 bytes).

uSeqNum

uint32_t UDP_THREAD_MSG_TAG::uSeqNum

Monotonically increasing sequence number; wraps at UINT32_MAX.

uTimestampSec

uint32_t UDP_THREAD_MSG_TAG::uTimestampSec

Whole-second component of the sender's timestamp.

uTimestampSubSec

uint32_t UDP_THREAD_MSG_TAG::uTimestampSubSec

Sub-second component of the sender's timestamp (units defined by application).

---

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

• /home/runner/work/libjuno/libjuno/examples/udp-threads/include/udp_api.h