haraldwolff/qemu-patch-raspberry4
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Author SHA1 Message Date
Peter Lieven f14c3d85b0 buffer: allow a buffer to shrink gracefully 
the idea behind this patch is to allow the buffer to shrink, but
make this a seldom operation. The buffers average size is measured
exponentionally smoothed with am alpha of 1/128.

Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1446203414-4013-20-git-send-email-kraxel@redhat.com
 2015-11-05 09:09:58 +01:00
Peter Lieven 4ec5ba151f buffer: factor out buffer_adj_size 
Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1446203414-4013-19-git-send-email-kraxel@redhat.com
 2015-11-05 09:09:55 +01:00
Peter Lieven fd95243372 buffer: factor out buffer_req_size 
Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1446203414-4013-18-git-send-email-kraxel@redhat.com
 2015-11-05 09:09:48 +01:00
Gerd Hoffmann d2b90718d2 buffer: add tracing 
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1446203414-4013-7-git-send-email-kraxel@redhat.com
 2015-11-05 09:08:48 +01:00
Gerd Hoffmann 1ff36b5d4d buffer: add buffer_shrink 
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1446203414-4013-6-git-send-email-kraxel@redhat.com
 2015-11-05 09:08:41 +01:00
Gerd Hoffmann 830a958320 buffer: add buffer_move 
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1446203414-4013-5-git-send-email-kraxel@redhat.com
 2015-11-05 09:08:39 +01:00
Gerd Hoffmann 4d1eb5fdb1 buffer: add buffer_move_empty 
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Daniel Berrange <berrange@redhat.com>
Message-id: 1446203414-4013-4-git-send-email-kraxel@redhat.com
 2015-11-05 09:08:36 +01:00
Gerd Hoffmann 810082d15c buffer: add buffer_init 
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1446203414-4013-3-git-send-email-kraxel@redhat.com
 2015-11-05 09:08:33 +01:00
Peter Lieven 5c10dbb7b5 buffer: make the Buffer capacity increase in powers of two 
This makes sure the number of reallocs is in O(log N).

Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 1446203414-4013-2-git-send-email-kraxel@redhat.com

[ rebased to util/buffer.c ]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
 2015-11-05 09:08:29 +01:00
Daniel P. Berrange 88c5f205fa util: pull Buffer code out of VNC module 
The Buffer code in the VNC server is useful for the IO channel
code, so pull it out into a shared module, QIOBuffer.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
 2015-10-20 14:59:09 +01:00