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 v1.8.0. See the documentation for v1.8.0 for the most up-to-date information.

nng_aio_result(3)

NAME

nng_aio_result - return result of asynchronous operation

SYNOPSIS

#include <nng/nng.h>

int nng_aio_result(nng_aio *aio);

DESCRIPTION

The nng_aio_result() returns the result of the operation associated with the handle aio. If the operation was successful, then 0 is returned. Otherwise a non-zero error code is returned.

The return value from this function is undefined if the operation has not completed yet. Either call this from the handle’s completion callback, or after waiting for the operation to complete with nng_aio_wait().

RETURN VALUES

The result of the operation, either zero on success, or an error number on failure.

ERRORS

`NNG_ETIMEDOUT`	The operation timed out.
`NNG_ECANCELED`	The operation was canceled.

Various other return values are possible depending on the operation.