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Backported from X.org:
commit 6178b1c91cfc9e860914acc6f0be2f2d2e07a124
Author: Adam Jackson <ajax@redhat.com>
Date: Tue Jun 7 15:52:11 2016 -0400
dix: Use OsSignal() not signal()
As the man page for the latter states:
The effects of signal() in a multithreaded process are unspecified.
We already have an interface to call sigaction() instead, use it.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
commit e10ba9e4b52269b2ac75c4802dce4ca47d169657
Author: Keith Packard <keithp@keithp.com>
Date: Wed Nov 11 22:02:01 2015 -0800
Remove non-smart scheduler. Don't require setitimer.
This allows the server to call GetTimeInMillis() after each request is
processed to avoid needing setitimer. -dumbSched now turns off the
setitimer.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
commit 1f915e8b524dd02011158aa038935970684c7630
Author: Daniel Drake <drake@endlessm.com>
Date: Wed May 20 13:16:12 2015 -0600
Keep SIGALRM restart flag after Popen
Commit 94ab7455 added SA_RESTART to the SIGALRM handler. However, the
Popen code tears down and recreates the SIGALRM handler via OsSignal(),
and this flag is dropped at this time.
Clean the code to use just a single codepath for creating this signal
handler, always applying SA_RESTART.
[ajax: Fixed commit id]
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Daniel Drake <drake@endlessm.com>
commit 94ab7455abc213fc96760e29ab2e943ec682fb22
Author: Daniel Drake <drake@endlessm.com>
Date: Tue May 12 16:39:22 2015 -0600
Allow system call restarts upon signal interruption
The X server frequently deals with SIGIO and SIGALRM interruptions.
If process execution is inside certain blocking system calls
when these signals arrive, e.g. with the kernel blocked on
a contended semaphore, the system calls will be interrupted.
Some system calls are automatically restartable (the kernel re-executes
them with the same parameters once the signal handler returns) but
only if the signal handler allows it.
Set SA_RESTART on the signal handlers to enable this convenient
behaviour.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Daniel Drake <drake@endlessm.com>
commit a6c71ce5d2d2fe89e07a2ef5041c915acc3dc686
Author: Tiago Vignatti <tiago.vignatti@nokia.com>
Date: Mon Mar 28 19:21:28 2011 +0300
os: fix memory and fd leaks in Popen
Signed-off-by: Tiago Vignatti <tiago.vignatti@nokia.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Nicolas Peninguy <nico@lostgeeks.org>
commit c9051b684b524549eab6d5b88ee3e195a6f6fbe8
Author: Alan Coopersmith <alan.coopersmith@sun.com>
Date: Wed Nov 5 18:25:57 2008 -0800
Use OsSignal in Popen/Pclose to avoid SysV signal() stupidity
commit 0e9ef65fa583bf2393dd0fda82df6f092387b425
Author: Keith Packard <keithp@koto.keithp.com>
Date: Wed Nov 7 16:33:10 2007 -0800
Don't frob timers unless SmartSchedule is running
commit 2338d5c9914e2a43c3a4f7ee0f4355ad0a1ad9e7
Author: Arjan van de Ven <arjan@linux.intel.com>
Date: Sun Oct 28 09:37:52 2007 +0100
reduce wakeups from smart scheduler
The smart scheduler itimer currently always fires after each request
(which in turn causes the CPU to wake out of idle, burning precious
power). Rather than doing this, just stop the timer before going into
the select() portion of the WaitFor loop. It's a cheap system call, and
it will only get called if there's no more commands batched up from the
active fd.
This change also allows some of the functions to be simplified;
setitimer() will only fail if it's passed invalid data, and we don't do
that... so make it void and remove all the conditional code that deals
with failure.
The change also allows us to remove a few variables that were used for
housekeeping between the signal handler and the main loop.
Signed-off-by: Keith Packard <keithp@koto.keithp.com>
**Note**: The above change also required ABI changes in hw/nxagent/.
commit abe0a51f3f790f8c055289465e130177c4b647cc
Author: Ben Byer <bbyer@bbyer.apple.com>
Date: Fri Sep 21 17:07:36 2007 -0700
So, like, checking return codes of system calls (signal, etc) is good.
Also, only restore an old signal handler if one was actually set
(prevents the server from dying on OS X).
commit 6da39c67905500ab2db00a45cda4a9f756cdde96
Author: Eric Anholt <eric@anholt.net>
Date: Wed Sep 12 13:23:13 2007 +0000
Fix build on FreeBSD after Popen changes.
commit a5b8053606d6e786cdcf6734f271acc05f9cc588
Author: Adam Jackson <ajax@benzedrine.nwnk.net>
Date: Tue Sep 11 11:37:06 2007 -0400
Ignore - not just block - SIGALRM around Popen()/Pclose().
Because our "popen" implementation uses stdio, and because nobody's stdio
library is capable of surviving signals, we need to make absolutely sure
that we hide the SIGALRM from the smart scheduler. Otherwise, when you
open a menu in openoffice, and it recompiles XKB to deal with the
accelerators, and you popen xkbcomp because we suck, then the scheduler
will tell you you're taking forever doing something stupid, and the
wait() code will get confused, and input will hang and your CPU usage
slams to 100%. Down, not across.
Backported-to-NX-by: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
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Backported from X.org:
commit ce6546337487c052b5dd3c04d3d8d4b09d691c3d
Author: Keith Packard <keithp@keithp.com>
Date: Tue May 31 09:38:17 2016 -0700
os: Initialize NotifyFds earlier in startup
If the server calls AbortServer during the first-time initialization
(which can happen if you start the server on an already using
DISPLAY), then the dbus code will shut down and call the notify fd
interface. If the notify fd list hasn't been initialized, the server
will crash.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Backported-to-NX-by: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
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Backported from X.org:
commit 0c41b7af4ab0c8d22b88f201293f59524d1e7317
Author: Keith Packard <keithp@keithp.com>
Date: Wed Nov 11 22:02:02 2015 -0800
os: Add NotifyFd interfaces
This provides a callback-based interface to monitor file
descriptors beyond the usual client and device interfaces.
Modules within the server using file descriptors for reading and/or
writing can call
Bool SetNotifyFd(int fd, NotifyFdProcPtr notify_fd, int mask, void *data);
mask can be any combination of X_NOTIFY_READ and X_NOTIFY_WRITE.
When 'fd' becomes readable or writable, the notify_fd function will be
called with the 'fd', the ready conditions and 'data' values as arguments,
When the module no longer needs to monitor the fd, it will call
void RemoveNotifyFd(int fd);
RemoveNotifyFd may be called from the notify function.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Backported-to-NX-by: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
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Content of that file is now hard-coded.
Adopting an exact copy of os/oscolor.c from X.org leads to this compiler warning:
```
oscolor.c:844:1: warning: string length ‘7614’ is greater than the length ‘4095’ ISO C99 compilers are required to support [-Woverlength-strings]
};
^
```
This will be address later in coordination with X.org.
Note: there is a tiny change in oscolor.c as we ship it. The original X.org file includes <X11/keysym.h> which seems
unneeded. We drop that one line from oscolor.c.
Fixes ArcticaProject/nx-libs#259.
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Backported from X.org:
commit 9f9268821b13038556fbc029df54ab0e9b2aa77f
Author: Mathieu Bérard <mathieu.berard@crans.org>
Date: Mon Aug 11 13:52:38 2008 -0400
The smart scheduler is not optional.
Backported-to-NX-by: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
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Relates to ArcticaProject/nx-libs#275.
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Fixes ArcticaProject/nx-libs#272.
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Fixes ArcticaProject/nx-libs#271.
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used in nxagent.
From c3d14036729fd186d4ec7ca1de603e1f2d174e2f Mon Sep 17 00:00:00 2001
From: Eric Anholt <anholt@freebsd.org>
Date: Fri, 10 Feb 2006 22:00:30 +0000
Subject: Remove libcwrapper usage from xorg server modules. The libcwrapper is
only of (marginal) use in the drivers, and that usage remains.
Backported-to-NX-by: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
Fixes ArcticaProject/nx-libs#246 (together with merge commit
ecd335fa61551d0b86d3f075469a7743ab899d95).
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This has already been started while replacing copyright info in file
headers and has now been completed with this commit.
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In the process of building nxagent against more and more system-wide installed
X.org libraries, we come to the limit of including structs from this (bundled
nx-X11) and that (system-wide X.Org) library.
This commit introduces a clear namespace separation of headers provided by
nx-X11 and headers provided by X.Org. This approach is only temporary as we
want to drop all nx-X11 bundled libraries from nx-libs.
However, for a while we need to make this separation clear and also ship
some reduced fake X.Org headers that avoid pulling in libX* and libNX_X*
symbols at the same time.
This patch has been tested on Debian jessie and unstable and requires no
overall testing on various distros and distro versions, as we finally will
drop all libNX_X* libraries and build against X.org's client libs.
For now, this hack eases our development / cleanup process.
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Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:
Imported nx-X11-3.1.0-1.tar.gz
into Git repository
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