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3969991b683efac1d40d76a42af3a47832b85783
libssh2/docs/libssh2_channel_flush_ex.md
Viktor Szakats b889b39945 docs: convert man page sources to "curldown" format 
To render in Git webviews as-is, to make it easier to edit, verify,
and to sync up with curl.

- add options to not build the `.3` man pages:
  - autotools: `--disable-docs`
  - cmake: `LIBSSH2_BUILD_DOCS=OFF`
- building `.3` man pages requires Perl after this patch.
- drop `mansyntax` and the shell / `grep` / GNU `man` tool requirements with it.
- scripts and most logic were copied from curl.
- add `cd2nroff` from curl, with edits to relax curl-specific checks.
- used `nroff2cd` (from curl) to convert from `.3` to `.md`. Then
  manually fixed copyrights, inline function references and a couple
  of other things.

Credits-to: Daniel Stenberg

Ref: eefcc1bda4
Ref: https://github.com/curl/curl/pull/12730
Ref: https://github.com/libssh2/www/issues/25#issuecomment-3289431671

Closes #1660
2025-10-09 04:05:38 +02:00

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c, SPDX-License-Identifier, Title, Section, Source, See-also
c SPDX-License-Identifier Title Section Source See-also
Copyright (C) The libssh2 project and its contributors. BSD-3-Clause libssh2_channel_flush_ex 3 libssh2

NAME

libssh2_channel_flush_ex - flush a channel

SYNOPSIS

#include <libssh2.h>

int
libssh2_channel_flush_ex(LIBSSH2_CHANNEL *channel, int streamid);

int
libssh2_channel_flush(LIBSSH2_CHANNEL *channel);

int
libssh2_channel_flush_stderr(LIBSSH2_CHANNEL *channel);

DESCRIPTION

channel - Active channel stream to flush.

streamid - Specific substream number to flush. Groups of substreams may be flushed by passing on of the following Constants.

LIBSSH2_CHANNEL_FLUSH_EXTENDED_DATA: Flush all extended data substreams

LIBSSH2_CHANNEL_FLUSH_ALL: Flush all substreams

Flush the read buffer for a given channel instance. Individual substreams may be flushed by number or using one of the provided macros.

RETURN VALUE

Return the number of bytes flushed or negative on failure. It returns LIBSSH2_ERROR_EAGAIN when it would otherwise block. While LIBSSH2_ERROR_EAGAIN is a negative number, it is not really a failure per se.