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Re: [Qemu-devel] [RfC PATCH 05/10] io: add qio_buffer_move_empty
From: |
Peter Lieven |
Subject: |
Re: [Qemu-devel] [RfC PATCH 05/10] io: add qio_buffer_move_empty |
Date: |
Fri, 25 Sep 2015 11:56:58 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 |
Am 24.09.2015 um 10:42 schrieb Gerd Hoffmann:
> Signed-off-by: Gerd Hoffmann <address@hidden>
> ---
> include/io/buffer.h | 10 ++++++++++
> io/buffer.c | 14 ++++++++++++++
> 2 files changed, 24 insertions(+)
>
> diff --git a/include/io/buffer.h b/include/io/buffer.h
> index cffad19..1dddc73 100644
> --- a/include/io/buffer.h
> +++ b/include/io/buffer.h
> @@ -127,4 +127,14 @@ uint8_t *qio_buffer_end(QIOBuffer *buffer);
> */
> gboolean qio_buffer_empty(QIOBuffer *buffer);
>
> +/**
> + * qio_buffer_move_empty:
> + * @to: destination buffer object
> + * @from: source buffer object
> + *
> + * Moves buffer, without copying data. 'to' buffer must be empty.
> + * 'from' buffer is empty and zero-sized on return.
> + */
> +void qio_buffer_move_empty(QIOBuffer *to, QIOBuffer *from);
> +
> #endif /* QIO_BUFFER_H__ */
> diff --git a/io/buffer.c b/io/buffer.c
> index daa3ebf..09ca321 100644
> --- a/io/buffer.c
> +++ b/io/buffer.c
> @@ -77,3 +77,17 @@ void qio_buffer_advance(QIOBuffer *buffer, size_t len)
> (buffer->offset - len));
> buffer->offset -= len;
> }
> +
> +void qio_buffer_move_empty(QIOBuffer *to, QIOBuffer *from)
> +{
> + assert(to->offset == 0);
> +
> + g_free(to->buffer);
> + to->offset = from->offset;
> + to->capacity = from->capacity;
> + to->buffer = from->buffer;
> +
> + from->offset = 0;
> + from->capacity = 0;
> + from->buffer = NULL;
> +}
Reviewed-by: Peter Lieven <address@hidden>
- [Qemu-devel] [RfC PATCH 06/10] io: add qio_buffer_move, (continued)
- [Qemu-devel] [RfC PATCH 06/10] io: add qio_buffer_move, Gerd Hoffmann, 2015/09/24
- [Qemu-devel] [RfC PATCH 09/10] vnc: kill jobs queue buffer, Gerd Hoffmann, 2015/09/24
- [Qemu-devel] [RfC PATCH 07/10] io: add qio_buffer tracing, Gerd Hoffmann, 2015/09/24
- [Qemu-devel] [RfC PATCH 08/10] name vnc buffers, Gerd Hoffmann, 2015/09/24
- [Qemu-devel] [RfC PATCH 05/10] io: add qio_buffer_move_empty, Gerd Hoffmann, 2015/09/24
- Re: [Qemu-devel] [RfC PATCH 05/10] io: add qio_buffer_move_empty,
Peter Lieven <=
- [Qemu-devel] [RfC PATCH 10/10] vnc-jobs: move buffer reset, use new buffer move, Gerd Hoffmann, 2015/09/24
- [Qemu-devel] [RfC PATCH 02/10] io: pull Buffer code out of VNC module, Gerd Hoffmann, 2015/09/24
- Re: [Qemu-devel] [RfC PATCH 00/10] vnc buffer handling, Daniel P. Berrange, 2015/09/24
- Re: [Qemu-devel] [RfC PATCH 00/10] vnc buffer handling, Peter Lieven, 2015/09/25