#include <nng/nng.h>
int nng_msg_header_chop(nng_msg *msg, size_t size);
int nng_msg_header_chop_u16(nng_msg *msg, uint16_t *val16);
int nng_msg_header_chop_u32(nng_msg *msg, uint32_t *val32);
int nng_msg_header_chop_u64(nng_msg *msg, uint64_t *val64);| This documentation is for the TIP (development tree) of NNG and may represent unreleased changes or functionality that is experimental, and is subject to change before release. The latest released version is v1.7.3. See the documentation for v1.7.3 for the most up-to-date information. |
nng_msg_header_chop(3)
NAME
nng_msg_header_chop - remove data from end of message header
SYNOPSIS
DESCRIPTION
The nng_msg_header_chop() family of functions removes
data from the end of the header of message msg.
The first function removes size bytes.
The remaining functions remove 2, 4, or 8 bytes, and stores them in the value
(such as val32),
after converting them from network-byte order (big-endian) to native
byte order.
RETURN VALUES
These function return 0 on success, and non-zero otherwise.
ERRORS
NNG_EINVAL
|
The message header is too short to remove the requested data. |