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Diffstat (limited to 'docs/reference/src/compat/nn_reallocmsg.3compat.adoc')
| -rw-r--r-- | docs/reference/src/compat/nn_reallocmsg.3compat.adoc | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/docs/reference/src/compat/nn_reallocmsg.3compat.adoc b/docs/reference/src/compat/nn_reallocmsg.3compat.adoc new file mode 100644 index 00000000..d48b5d40 --- /dev/null +++ b/docs/reference/src/compat/nn_reallocmsg.3compat.adoc @@ -0,0 +1,59 @@ += nn_reallocmsg(3compat) +// +// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech> +// Copyright 2018 Capitar IT Group BV <info@capitar.com> +// +// 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 + +nn_reallocmsg - reallocate message (compatible API) + +== SYNOPSIS + +[source,c] +---- +#include <nanomsg/nn.h> + +void *nn_reallocmsg(void *old, size_t size); +---- + +== DESCRIPTION + +The `nn_reallocmsg()` reallocates the message _old_, making it of size _size_. + +NOTE: This function is provided for API +xref:nng_compat.3compat.adoc[compatibility] with legacy _libnanomsg_. +Consider using the relevant xref:libnng.3.adoc[modern API] instead. + +On success, the contents of _old_ are copied into the new message +(truncating if appropriate), then _old_ is deallocated, and a pointer +to the new message payload is returned. + +On failure, the _old_ message is unchanged, and the value `NULL` is returned +to the caller. + +== RETURN VALUES + +This function returns a pointer to message buffer space, or `NULL` +on failure. + +== ERRORS + +[horizontal] +`ENOMEM`:: Insufficient memory is available. +`EINVAL`:: An invalid _size_ was specified. +`ETERM`:: The library is shutting down. + +== SEE ALSO + +[.text-left] +xref:nn_allocmsg.3compat.adoc[nn_allocmsg(3compat)], +xref:nn_freemsg.3compat.adoc[nn_freemsg(3compat)], +xref:nn_errno.3compat.adoc[nn_errno(3compat)], +xref:nng_compat.3compat.adoc[nng_compat(3compat)], +xref:nng.7.adoc[nng(7)] |