nx-libs/nx-X11/programs/Xserver/Xext/shm.c, branch 3.5.99.18

Lift Xext to xorg 1.4.2

2018-11-09T14:36:31+00:00

Add CreatePixmap allocation hints.

2017-04-10T14:22:28+00:00

Backported from X.org: commit f2e310132fbe1520c1b5f3da4faa2d2d47835e72 Author: Aaron Plattner Date: Wed Oct 31 14:15:35 2007 -0700 Add CreatePixmap allocation hints. These hints allow an acceleration architecture to optimize allocation of certain types of pixmaps, such as pixmaps that will serve as backing pixmaps for redirected windows. Backported-to-NX-by: Mike Gabriel

dix/os: backport various signal handling and smart scheduler changes from X.org

2017-03-21T09:58:01+00:00

Backported from X.org: commit 6178b1c91cfc9e860914acc6f0be2f2d2e07a124 Author: Adam Jackson 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 Reviewed-by: Keith Packard commit e10ba9e4b52269b2ac75c4802dce4ca47d169657 Author: Keith Packard 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 Signed-off-by: Keith Packard commit 1f915e8b524dd02011158aa038935970684c7630 Author: Daniel Drake 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 Signed-off-by: Daniel Drake commit 94ab7455abc213fc96760e29ab2e943ec682fb22 Author: Daniel Drake 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 Signed-off-by: Daniel Drake commit a6c71ce5d2d2fe89e07a2ef5041c915acc3dc686 Author: Tiago Vignatti Date: Mon Mar 28 19:21:28 2011 +0300 os: fix memory and fd leaks in Popen Signed-off-by: Tiago Vignatti Reviewed-by: Peter Hutterer Reviewed-by: Nicolas Peninguy commit c9051b684b524549eab6d5b88ee3e195a6f6fbe8 Author: Alan Coopersmith Date: Wed Nov 5 18:25:57 2008 -0800 Use OsSignal in Popen/Pclose to avoid SysV signal() stupidity commit 0e9ef65fa583bf2393dd0fda82df6f092387b425 Author: Keith Packard Date: Wed Nov 7 16:33:10 2007 -0800 Don't frob timers unless SmartSchedule is running commit 2338d5c9914e2a43c3a4f7ee0f4355ad0a1ad9e7 Author: Arjan van de Ven 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 **Note**: The above change also required ABI changes in hw/nxagent/. commit abe0a51f3f790f8c055289465e130177c4b647cc Author: Ben Byer 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 Date: Wed Sep 12 13:23:13 2007 +0000 Fix build on FreeBSD after Popen changes. commit a5b8053606d6e786cdcf6734f271acc05f9cc588 Author: Adam Jackson 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

Fix "uninitialised byte(s)" complaints from valgrind

2017-03-02T11:22:40+00:00

Naming change: SecurityAccess -> DixAccess

2017-02-20T09:23:59+00:00

Backported from X.org: commit 6c46645cfc1afda8aeabfe0ed4d9342673b702f1 Author: Eamon Walsh Date: Thu Dec 14 14:45:42 2006 -0500 Naming change: Security*Access -> Dix*Access Backported-to-NX-by: Mike Gabriel

drop platform support: unifdef Lynx.

2017-02-08T21:40:46+00:00

Fixes ArcticaProject/nx-libs#272.

Remove libcwrapper usage from xorg server modules. The libcwrapper is not used in nxagent.

2016-12-04T20:11:41+00:00

From c3d14036729fd186d4ec7ca1de603e1f2d174e2f Mon Sep 17 00:00:00 2001 From: Eric Anholt 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 Fixes ArcticaProject/nx-libs#246 (together with merge commit ecd335fa61551d0b86d3f075469a7743ab899d95).

Remove extmod from nx-X11/programs/Xserver/Xext/.

2016-11-02T16:54:04+00:00

This backports (in their essence) these X.org Xserver commits: commit a7a2f9f66ddc27df96557093f3dd266e24eb653b Author: Daniel Stone Date: Tue Jul 10 02:03:13 2012 +0100 Remove the last remnants of extmod extmod was originally a big pointless module. Now it's an empty, pointless module. This commit makes it unexist. Signed-off-by: Daniel Stone Reviewed-by: Peter Hutterer Signed-off-by: Peter Hutterer Signed-off-by: Keith Packard commit 7a11b817e770cd2196814f1ac6264c6d87b76c6a Author: Tomas Carnecky Date: Tue Jul 10 02:03:06 2012 +0100 Move Xv and XvMC from extmod to built-in Always build these extensions into the core server, rather than letting them languish in extmod. Signed-off-by: Tomas Carnecky Reviewed-by: Daniel Stone Reviewed-by: Jamey Sharp Signed-off-by: Peter Hutterer Signed-off-by: Keith Packard commit 7d859bd87834dd79c7fa3792075496ece698c082 Author: Tomas Carnecky Date: Tue Jul 10 02:03:05 2012 +0100 Move XRes from extmod to built-in Always build XRes support into the core server, rather than letting it languish in extmod. Signed-off-by: Tomas Carnecky Reviewed-by: Daniel Stone Reviewed-by: Jamey Sharp Signed-off-by: Peter Hutterer Signed-off-by: Keith Packard commit ba21fc29587e4f11320b88a70433beb1fe22cdf3 Author: Tomas Carnecky Date: Tue Jul 10 02:03:04 2012 +0100 Move DPMS from extmod to built-in Always build DPMS support into the core server, rather than letting it languish in extmod. Signed-off-by: Tomas Carnecky Reviewed-by: Daniel Stone Reviewed-by: Jamey Sharp Signed-off-by: Peter Hutterer Signed-off-by: Keith Packard commit 3ed2c6e11298c4299042cfe4578f6cc02e441d58 Author: Tomas Carnecky Date: Tue Jul 10 02:03:03 2012 +0100 Move MIT-SCREEN-SAVER from extmod to built-in If we've built MIT-SCREEN-SAVER support, then just build it into the main binary, rather than leaving it in extmod. Signed-off-by: Tomas Carnecky Reviewed-by: Daniel Stone Reviewed-by: Jamey Sharp Signed-off-by: Peter Hutterer Signed-off-by: Keith Packard Backported-to-NX-by: Mike Gabriel Conflicts: nx-X11/programs/Xserver/Xext/extmod/Imakefile

VCS info lines: Remove ancient X.org / XFree86 VCS info line from code files.

2016-07-05T23:09:15+00:00

This has already been started while replacing copyright info in file headers and has now been completed with this commit.

remove unreferenced NEED_EVENTS/NEED_REPLIES

2016-07-05T20:55:07+00:00

Remove defines of NEED_EVENTS and NEED_REPLIES because they are never used anywhere. Basically these three commits, but as they are newer and to not match the code structure the patches have not been applied but replaced by sed + manual intervention: From cb95642dc8edebb2935dd471f8b339cb98aa8481 Mon Sep 17 00:00:00 2001 From: Peter Hutterer Date: Fri, 28 Nov 2008 22:28:32 +1000 Subject: Remove #define NEED_EVENTS and NEED_REPLIES A grep on xorg/* revealed there's no consumer of this define. Quote Alan Coopersmith: "The consumer was in past versions of the headers now located in proto/x11proto - for instance, in X11R6.0's xc/include/Xproto.h, all the event definitions were only available if NEED_EVENTS were defined, and all the reply definitions required NEED_REPLIES. Looks like Xproto.h dropped them by X11R6.3, which didn't have the #ifdef's anymore, so these are truly ancient now." Signed-off-by: Peter Hutterer Signed-off-by: Adam Jackson -- From 6de368c9aa7ccd2fcd62fca5a2b278913db4d03d Mon Sep 17 00:00:00 2001 From: Fernando Carrijo Date: Thu, 1 Jul 2010 06:50:47 -0300 Subject: Purge macros NEED_EVENTS and NEED_REPLIES Signed-off-by: Fernando Carrijo Acked-by: Tiago Vignatti Reviewed-by: Alan Coopersmith -- From 57c03e52e6b4e3ed54df5fdd778865467d08e119 Mon Sep 17 00:00:00 2001 From: Fernando Carrijo Date: Thu, 1 Jul 2010 06:59:48 -0300 Subject: Purge macro NEED_EVENTS Signed-off-by: Fernando Carrijo Acked-by: Tiago Vignatti Reviewed-by: Alan Coopersmith