Re: [PATCH v8 05/11] pkt-line: add packet_flush_gently()

> From: Lars Schneider <larsxschneider@gmail.com>
> 
> packet_flush() would die in case of a write error even though for some
> callers an error would be acceptable. Add packet_flush_gently() which
> writes a pkt-line flush packet like packet_flush() but does not die in
> case of an error. The function is used in a subsequent patch.
> 
> Signed-off-by: Lars Schneider <larsxschneider@gmail.com>

> ---
>  pkt-line.c | 8 ++++++++
>  pkt-line.h | 1 +
>  2 files changed, 9 insertions(+)
> 
> diff --git a/pkt-line.c b/pkt-line.c
> index 3b465fd..19f0271 100644
> --- a/pkt-line.c
> +++ b/pkt-line.c
> @@ -91,6 +91,14 @@ void packet_flush(int fd)
>  	write_or_die(fd, "0000", 4);
>  }
>  
> +int packet_flush_gently(int fd)
> +{
> +	packet_trace("0000", 4, 1);
> +	if (write_in_full(fd, "0000", 4) == 4)
> +		return 0;
> +	return error("flush packet write failed");
> +}
> +
>  void packet_buf_flush(struct strbuf *buf)
>  {
>  	packet_trace("0000", 4, 1);
> diff --git a/pkt-line.h b/pkt-line.h
> index 3caea77..3fa0899 100644
> --- a/pkt-line.h
> +++ b/pkt-line.h
> @@ -23,6 +23,7 @@ void packet_flush(int fd);
>  void packet_write_fmt(int fd, const char *fmt, ...) __attribute__((format (printf, 2, 3)));
>  void packet_buf_flush(struct strbuf *buf);
>  void packet_buf_write(struct strbuf *buf, const char *fmt, ...) __attribute__((format (printf, 2, 3)));
> +int packet_flush_gently(int fd);
>  int packet_write_fmt_gently(int fd, const char *fmt, ...) __attribute__((format (printf, 2, 3)));
>  
>  /*
>