nx-libs/nx-X11/programs/Xserver/dix/dispatch.c, branch 3.5.99.5

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

Xserver: Support building against libXfont2 (v2) API and old libXfont(1) API alike.

2017-04-10T14:09:20+00:00

Fixes ArcticaProject/nx-libs#296. Inspired by the following X.org commit. Other than X.org, we will continue support for building nx-libs against libXfont1 for a while. commit 05a793f5b3c40747d5a92a076def7f4fb673c7e7 Author: Keith Packard Date: Tue Sep 1 18:50:55 2015 -0700 dix: Switch to the libXfont2 API (v2) This new libXfont API eliminates exposing internal X server symbols to the font library, replacing those with a struct full of the entire API needed to use that library. v2: Use libXfont2 instead of libXfont_2 Signed-off-by: Keith Packard Reviewed-by: Adam Jackson

SetFontPath: set client->errorValue on failure.

2017-04-10T14:03:10+00:00

Backported from X.org: commit 21ceae9002c6364deb3d074cf2da7d3864cf6879 Author: Jamey Sharp Date: Tue May 11 10:24:00 2010 -0700 SetFontPath: set client->errorValue on failure. Previously the callers were only setting errorValue on Success, when it's ignored, and leaving it alone on failure, when it's sent to the client. Since SetFontPath takes the ClientPtr, let it set client->errorValue instead of letting the callers continue to get it wrong. Signed-off-by: Jamey Sharp Reviewed-by: Julien Cristau Signed-off-by: Keith Packard Backported-to-NX-by: Mike Gabriel

Revert "regression fix for 52872a0: Keep index parameter in AddScreen() for now. Requires proper ABI backport. (was: copy+paste error)."

2017-04-10T14:01:02+00:00

This reverts commit 342758254b1b8507c9ec774f40d8ec62baf394a8. Other than stated in the original commit msg, both regressions are related to inproper rebasing of two pull requests touch the same code portion.

regression fix for 52872a0: Keep index parameter in AddScreen() for now. Requires proper ABI backport. (was: copy+paste error).

2017-03-27T14:39:28+00:00

Move AddScreen() comment where it actually belongs. Should be done in X.org, too.

2017-03-24T08:19:34+00:00

dix: Move AddScreen() over into dispatch.c and introduce init_screen()

2017-03-24T08:19:30+00:00

Partially pruned out of X.org commits: commit 987579c930bda803427a28cb82773c389f5110d6 Author: Peter Hutterer Date: Wed Apr 22 13:26:40 2009 +1000 dix: remove all but main() from main.c All other functions are pushed into where they seemed to fit. main.c is now linked separately into libmain.a and linked in by the various DDXs. Signed-off-by: Peter Hutterer commit 3478af3374abffa0c226ee077fda1fcfc0751e74 Author: Dave Airlie Date: Tue Jun 5 17:01:21 2012 +0100 screen: split out screen init code. (v2) This is a precursor for reusing this code to init gpu screens. v2: fixup int check as per Keith's review. Reviewed-by: Keith Packard Signed-off-by: Dave Airlie Backported-to-NX-by: Mike Gabriel

dix: Extend initial connection handshake for forwarding proxies

2017-03-21T09:58:07+00:00

commit 78fa121f4097d29458e5453c13473595df06e26e Author: Adam Jackson Date: Fri Jun 17 13:43:38 2011 -0400 dix: Extend initial connection handshake for forwarding proxies Forwarding proxies like sshd will appear to be local, even though they aren't really. This leads to weird behaviour for extensions that truly require running under the same OS services as the client, like MIT-SHM and DRI2. Add two new legal values for the initial connection's byteOrder field, 'r' and 'R'. These act like 'l' and 'B' respectively, but have the side effect of forcing the client to be treated as non-local. Forwarding proxies should attempt to munge the first packet of the connection accordingly; older servers will reject connections thusly munged, so the proxy should fall back to passthrough if the munged connection attempt fails. Reviewed-by: Daniel Stone Signed-off-by: Adam Jackson Backported-to-NX-by: Mike Gabriel

os: Add facilities for client ID tracking.

2017-03-21T09:58:07+00:00

commit 6d6d4cb6043905d850834946e9bfc526ed5a9ef7 Author: Matthieu Herrb Date: Mon Jan 2 13:23:59 2012 +0000 Add OpenBSD support to DetermineClientCmd() Uses kvm_getargv() from libkvm. Signed-off-by: Matthieu Herrb Reviewed-by: Adam Jackson Signed-off-by: Keith Packard commit cfc4c3d7fa8bd4da4c08b2ab8e6f85435f75353a Author: Alan Coopersmith Date: Sat Dec 24 10:00:56 2011 -0800 Add Solaris support to DetermineClientCmd Uses /proc/pid/psinfo to read command & partial arguments. Moves cmdsize & argsize variables into non-Solaris #else clause to avoid unused variable warnings. Fixes format mismatch errors when building with DEBUG defined on a 64-bit platform (where Mask is defined as CARD32). Signed-off-by: Alan Coopersmith Reviewed-by: Rami Ylimäki Signed-off-by: Keith Packard commit 780133f9ae7fada462714b47e79d26075bbd9abe Author: Alan Coopersmith Date: Fri Oct 28 21:29:50 2011 -0700 Convert DetermineClientCmd to use strdup instead of malloc+strncpy *cmdname is initialized to NULL earlier in the function, so it's okay to overwrite it with NULL if strdup fails, don't need that extra check. Signed-off-by: Alan Coopersmith Reviewed-by: Jeremy Huddleston commit 2ef4ff45ef1fcfc4967ebe3d550408769e5f6500 Author: Erkki Seppälä Date: Fri Mar 25 10:38:23 2011 +0200 os/client: Prevent rare fd leak in DetermineClientPid DetermineClientPid didn't close file descriptor if read on /proc/pid/cmdline failed. Adjusted the code to disregard the close return value and perform the return after that, if the read failed or returned EOF. Signed-off-by: Mark Kettenis Signed-off-by: Erkki Seppälä Reviewed-by: Rami Ylimäki Signed-off-by: Keith Packard commit 1e933665bef26c74196bb7c59910e6a78bcacf0e Author: Rami Ylimäki Date: Wed Dec 22 16:51:09 2010 +0200 os: Add facilities for client ID tracking. An interface is provided for figuring out the PID and process name of a client. Make some existing functionality from SELinux and IA extensions available for general use. Signed-off-by: Rami Ylimäki Reviewed-by: Tiago Vignatti 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