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From e0406c32a13c399b646834089779c39341143253 Mon Sep 17 00:00:00 2001
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From: "Daniel P. Berrange" <berrange@redhat.com>
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Date: Thu, 8 Feb 2018 17:50:20 +0100
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Subject: [PATCH 06/27] buffer: add buffer_move
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RH-Author: Daniel P. Berrange <berrange@redhat.com>
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Message-id: <20180208175041.5634-7-berrange@redhat.com>
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Patchwork-id: 78944
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O-Subject: [RHEL-7.5 qemu-kvm PATCH v1 06/27] buffer: add buffer_move
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Bugzilla: 1527405
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RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
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RH-Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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From: Gerd Hoffmann <kraxel@redhat.com>
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Reviewed-by: Peter Lieven <pl@kamp.de>
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Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
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Message-id: 1446203414-4013-5-git-send-email-kraxel@redhat.com
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(cherry picked from commit 830a9583206a051c240b74c3f688a015dc5d2967)
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Conflicts:
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include/qemu/buffer.h
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util/buffer.c - APIs are still in vnc.{c,h}
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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ui/vnc.c | 16 ++++++++++++++++
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ui/vnc.h | 1 +
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2 files changed, 17 insertions(+)
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diff --git a/ui/vnc.c b/ui/vnc.c
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index b520f58..95457ad 100644
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--- a/ui/vnc.c
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+++ b/ui/vnc.c
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@@ -530,6 +530,22 @@ void buffer_move_empty(Buffer *to, Buffer *from)
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from->buffer = NULL;
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}
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+void buffer_move(Buffer *to, Buffer *from)
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+{
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+ if (to->offset == 0) {
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+ buffer_move_empty(to, from);
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+ return;
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+ }
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+
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+ buffer_reserve(to, from->offset);
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+ buffer_append(to, from->buffer, from->offset);
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+
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+ g_free(from->buffer);
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+ from->offset = 0;
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+ from->capacity = 0;
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+ from->buffer = NULL;
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+}
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+
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static void vnc_desktop_resize(VncState *vs)
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{
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diff --git a/ui/vnc.h b/ui/vnc.h
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index c300660..703fef9 100644
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--- a/ui/vnc.h
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+++ b/ui/vnc.h
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@@ -549,6 +549,7 @@ void buffer_append(Buffer *buffer, const void *data, size_t len);
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void buffer_advance(Buffer *buf, size_t len);
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uint8_t *buffer_end(Buffer *buffer);
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void buffer_move_empty(Buffer *to, Buffer *from);
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+void buffer_move(Buffer *to, Buffer *from);
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/* Misc helpers */
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--
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1.8.3.1
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