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Hans de Goede a7841325b2 red_worker: Rework poll code to use the watch interface 
Commit 143a1df24e changed red_worker_main
from epoll to poll. But epoll has edge triggered semantics (when requested
and we requested them), where as poll is always level triggered. And
red_worker was relying on the edge triggered semantics, as it was always
polling for POLLOUT, which, when edge triggered, would only cause poll
to register an event after we had blocked on a write. But after the
switch to regular poll, with its level triggered semantics, the POLLOUT
condition would almost always be true, causing red_worker_main to not
block on the poll and burn CPU as fast as it can as soon as a client was
connected.

Luckily we already have a mechanism to switch from polling for read only
to polling for read+write and back again in the form of watches. So this
patch changes the red_worker dummy watch implementation into a proper watch
implementation, and drops the entire EventListener concept since that then is
no longer needed.

This fixes spice-server using 400% CPU on my quad core machine as soon as
a client was connected to a multi head vm, and as an added bonus is a nice
cleanup IMHO.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2012-03-12 12:10:51 +01:00
build-aux Add a 'syntax-check' make target 2012-01-13 18:12:00 +02:00
client Use SPICE_FOREIGN_MENU_SOCKET if it's available 2012-03-05 22:52:27 +01:00
common Send name & uuid to capable clients 2012-03-05 18:19:07 +01:00
docs docs/Spice_for_newbies.odt: some updates - added copy paste and wan mention, removed vdi_port 2012-01-22 15:13:32 +02:00
python_modules demarshal: fixed-size array are missing __nelements 2012-03-05 18:19:07 +01:00
server red_worker: Rework poll code to use the watch interface 2012-03-12 12:10:51 +01:00
spice-protocol@1a3b563171 Fix spice-protocol reference 2012-03-05 19:36:25 +01:00
tests tests/migrate.py: add --vdagent 2011-08-23 17:01:14 +03:00
tools Add casts for compatibility purposes 2012-02-14 10:44:49 +02:00
uncrustify_cfg fresh start 2009-10-14 15:06:41 +02:00
.gitignore Update .gitignore with a few more generated files 2012-01-23 12:28:58 +02:00
.gitmodules build-sys: use spice-protocol as submodule 2012-03-01 16:24:10 +01:00
.mailmap Add a 'syntax-check' make target 2012-01-13 18:12:00 +02:00
AUTHORS Fill out the AUTHORS file with some content 2012-01-13 18:11:58 +02:00
autogen.sh build-sys: use spice-protocol as submodule 2012-03-01 16:24:10 +01:00
cfg.mk Add a 'syntax-check' make target 2012-01-13 18:12:00 +02:00
ChangeLog fresh start 2009-10-14 15:06:41 +02:00
configure.ac build-sys: use spice-protocol as submodule 2012-03-01 16:24:10 +01:00
COPYING Relicense everything from GPL to LGPL 2.1+ 2010-04-13 22:22:15 +02:00
GITVERSION Add --enable-werror and make it the default only for git builds 2010-07-09 12:14:32 +02:00
GNUmakefile Add a 'syntax-check' make target 2012-01-13 18:12:00 +02:00
maint.mk Add a 'syntax-check' make target 2012-01-13 18:12:00 +02:00
Makefile.am build-sys: use spice-protocol as submodule 2012-03-01 16:24:10 +01:00
NEWS Release 0.10.1 2012-01-23 15:58:13 +01:00
README README: make a note of SPICE_DEBUG_ALLOW_MC 2012-02-15 14:32:11 +02:00
spice1.proto spice-client migration: fix minor for old migration support. 2011-01-27 18:26:09 +02:00
spice_codegen.py don't #include config.h in generated header files 2011-06-22 16:29:52 +02:00
spice-server.pc.in spice-server.pc.in: move Requires to Requires.private 2011-10-23 11:26:30 +02:00
spice.proto Send name & uuid to capable clients 2012-03-05 18:19:07 +01:00
TODO.multiclient Remove trailing whitespace from end of lines 2012-01-13 18:11:59 +02:00

README 

   SPICE: Simple Protocol for Independent Computing Environments
   =============================================================

SPICE is a remote display system built for virtual environments which
allows you to view a computing 'desktop' environment not only on the
machine where it is running, but from anywhere on the Internet and
from a wide variety of machine architectures.

Installation
------------

The SPICE package uses GNU autotools, so the build install process
follows the standard process documented in the INSTALL file. As a
quick start you can do

  ./configure --prefix=/usr --sysconfdir=/etc \
        --localstatedir=/var --libdir=/usr/lib
  make
  sudo make install

Or to install into a private user specific location

  ./configure --prefix=$HOME/spice
  make
  make install

The following mandatory dependancies are required in order to
build SPICE

    Spice protocol >= 0.9.0
    Celt           >= 0.5.1.1, < 0.6.0
    Pixman         >= 0.17.7
    OpenSSL
    libjpeg
    zlib
    Cyrus-SASL

The following optional dependancies increase the available
functionality

    GE Gui         >= 0.6.0,  < 0.7.0   (GUI app support)
    OpenGL                              (GUI app support)
    Alsa                                (Linux support)
    XRandR         >= 1.2               (X11 support)
    Xinerama       >= 1.0               (X11 support)
    libcacard      >= 0.1.2             (Smartcard support)
    Slirp                               (Tunnelling support)

Communication
-------------

To communicate with the development team, or to post patches
there is a technical mailing list:

   http://lists.freedesktop.org/mailman/listinfo/spice-devel

There is also a mailing list for new release announcements:

   http://lists.freedesktop.org/archives/spice-announce/

To view known bugs, or report new bugs, in SPICE visit

   https://bugs.freedesktop.org/describecomponents.cgi?product=Spice

Bugs found when using an OS distribution's binary packages should
be reported to the OS vendors' own bug tracker first.

The latest SPICE code can be found in GIT at:

   http://cgit.freedesktop.org/spice/

Licensing
---------

SPICE is provided under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

Please see the COPYING file for the complete LGPLv2+ license
terms, or visit <http://www.gnu.org/licenses/>.

Experimental Features
---------------------
To enable multiple client connections, set:
SPICE_DEBUG_ALLOW_MC=1

-- End of readme