= nng_aio_set_input(3) // // Copyright 2018 Staysail Systems, Inc. // Copyright 2018 Capitar IT Group BV // // This document is supplied under the terms of the MIT License, a // copy of which should be located in the distribution where this // file was obtained (LICENSE.txt). A copy of the license may also be // found online at https://opensource.org/licenses/MIT. // == NAME nng_aio_set_input - set input parameter == SYNOPSIS [source, c] ----------- #include void nng_aio_set_input(nng_aio *aio, unsigned int index, void *param); ----------- == DESCRIPTION The `nng_aio_set_input()` function sets the input parameter at _index_ to _param_ for the asynchronous operation associated with _aio_. The type and semantics of input parameters are determined by specific operations; the caller must supply appropriate inputs for the operation to be performed. The valid values of _index_ range from zero (0) to three (3), as no operation currently defined can accept more than four parameters. (This limit could increase in the future.) NOTE: If the _index_ does not correspond to a defined input for the operation, then this function will have no effect. Note that attempts to set parameters with an _index_ greater than three (3) will simply be ignored. CAUTION: It is an error to call this function while the _aio_ is currently in use by an active asynchronous operation. An input parameter set with this function may be retrieved later with the <> function. == RETURN VALUES None. == ERRORS None. == SEE ALSO <>, <>, <>, <>, <>