'\" t
.\"     Title: nn_close
.\"    Author: [see the "AUTHOR(S)" section]
.\" Generator: Asciidoctor 2.0.26
.\"      Date: 2021-02-08
.\"    Manual: NNG Reference Manual
.\"    Source: \ \&
.\"  Language: English
.\"
.TH "NN_CLOSE" "3compat" "2021-02-08" "\ \&" "NNG Reference Manual"
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.SH "NAME"
nn_close \- close socket (compatible API)
.SH "SYNOPSIS"
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.fam C
#include <nanomsg/nn.h>

int nn_close(int sock);
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.if n .RE
.SH "DESCRIPTION"
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The \f(CRnn_close()\fP function closes the socket \fIsock\fP.
Any operations that are currently in progress will be terminated, and will
fail with error \f(CREBADF\fP.
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.B Note
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This function is provided for API
compatibility with legacy \fIlibnanomsg\fP.
Consider using the relevant modern API instead.
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.SH "RETURN VALUES"
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This function returns zero on success, and \-1 on failure.
.SH "ERRORS"
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\f(CREBADF\fP
.RS 4
The socket is not open.
.RE
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\f(CRETERM\fP
.RS 4
The library is shutting down.
.RE
.SH "SEE ALSO"
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nn_errno(3compat),
nn_socket(3compat),
nng_compat(3compat),
nng(7)