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2012-11-01vnc: add missing staticBlue Swirl1-1/+0
Add missing 'static' qualifiers. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2012-06-27Remove support for non-threaded VNC serverDaniel P. Berrange1-16/+0
QEMU now has a fundamental requirement for pthreads, so there is no compelling reason to retain support for the non-threaded VNC server. Remove the --{enable,disable}-vnc-thread configure arguments, and all CONFIG_VNC_THREAD conditionals Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-03-14vnc: don't mess up with iohandlers in the vnc threadCorentin Chary1-0/+1
The threaded VNC servers messed up with QEMU fd handlers without any kind of locking, and that can cause some nasty race conditions. Using qemu_mutex_lock_iothread() won't work because vnc_dpy_cpy(), which will wait for the current job queue to finish, can be called with the iothread lock held. Instead, we now store the data in a temporary buffer, and use a bottom half to notify the main thread that new data is available. vnc_[un]lock_ouput() is still needed to access VncState members like abort, csock or jobs_buffer. Signed-off-by: Corentin Chary <corentin.chary@gmail.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-07-26vnc: threaded VNC serverCorentin Chary1-0/+87
Implement a threaded VNC server using the producer-consumer model. The main thread will push encoding jobs (a list a rectangles to update) in a queue, and the VNC worker thread will consume that queue and send framebuffer updates to the output buffer. The threaded VNC server can be enabled with ./configure --enable-vnc-thread. If you don't want it, just use ./configure --disable-vnc-thread and a syncrhonous queue of job will be used (which as exactly the same behavior as the old queue). If you disable the VNC thread, all thread related code will not be built and there will be no overhead. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>