415 lines
17 KiB
Plaintext
415 lines
17 KiB
Plaintext
Release 1.6 (2010-04-09)
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========================
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- darwin: xnu doesn't support poll on ttys on the master side
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- Fix descriptor leak on memory error path
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- Support xcb_discard_reply
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- Open the X11 socket with close-on-exec flag
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- Fix authentication on hpux and Hurd
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Release 1.5 (2009-12-03)
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========================
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- setsockopt(SO_KEEPALIVE) on TCP display connections
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- Add DRI2 support
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- Fix check dependency
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- Cygwin build fix: Add -no-undefined to libtool flags
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Release 1.4 (2009-07-15)
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========================
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* Add majorCode, minorCode and resourceID fields to X generic error
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* Fix precedence bug: wrong length for big-requests preceded by sync
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* Fix libxcb-randr version info
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Release 1.3 (2009-05-29)
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========================
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* Copy full IPv4 mapping (Bug #20665)
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* Fix XID allocation
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* Use poll() instead of select() when available
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* Fix local socket connection on Hurd
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* Fix XDM-AUTHORIZATION-1
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* Disable Nagle on TCP socket
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Release 1.2 (2009-02-17)
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========================
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* Stop packaging auto-generated C files into tarball.
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Release 1.1.93 (2008-12-11)
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===========================
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Enhancements:
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* Apple: Enable support for launchd DISPLAY socket
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* Treat XIDs the same as other cardinal values.
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Release 1.1.92 (2008-11-01)
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===========================
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Enhancements:
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* Added small fix to support trailing fixed fields; also warning for non-pad fixed fields
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* Fixed overly aggressive warning about fixed field following variable
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* Added generation of extern "C" for compatibility with C++
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* Remove libxcb-xlib and xcbxlib.h.
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* Inline _xcb_lock_io, _xcb_unlock_io, and _xcb_wait_io.
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* Track 64-bit sequence numbers internally.
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* Use sequence number ranges in pending replies
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* Remove duplicate XCB_EXTENSION calls for Composite extension
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* Factorize m4 macros and add one to set X extensions
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* Allow compile-time setting for XCB queue buffer size
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* Support handing off socket write permission to external code.
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* Add support for the abstract socket namespace under Linux
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Bug fixes:
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* Fix tiny memory leak in read_packet
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* Fix some fd leaks in _xcb_open_*()
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Release 1.1 (2007-11-04)
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========================
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This release requires xcb-proto 1.1, due to the addition of the
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extension-multiword attribute to the XML schema.
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This release contains several important bug fixes, summarized below. It
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also contains a patch much like Novell's libxcb-sloppy-lock.diff.
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Rationale from the commit message follows. The patch and this rationale
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were authored by Jamey Sharp <jamey@minilop.net>, with agreement from
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Josh Triplett <josh@freedesktop.org>.
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I strongly opposed proposals like this one for a long time.
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Originally I had a very good reason: libX11, when compiled to use
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XCB, would crash soon after a locking correctness violation, so it
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was better to have an informative assert failure than a mystifying
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crash soon after.
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It took some time for me to realize that I'd changed the libX11
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implementation (for unrelated reasons) so that it could survive most
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invalid locking situations, as long as it wasn't actually being used
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from multiple threads concurrently.
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The other thing that has changed is that most of the code with
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incorrect locking has now been fixed. The value of the assert is
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accordingly lower.
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However, remaining broken callers do need to be fixed. That's why
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libXCB will still noisily print a stacktrace (if possible) on each
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assertion failure, even when assert isn't actually invoked to
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abort() the program; and that's why aborting is still default. This
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environment variable is provided only for use as a temporary
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workaround for broken applications.
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Enhancements:
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* Print a backtrace, if possible, on locking assertion failures.
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* Skip abort() on locking assertions if LIBXCB_ALLOW_SLOPPY_LOCK is set.
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* xcb_poll_for_event: Return already-read events before reading again.
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* Output a configuration summary at the end of ./configure.
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Bug fixes:
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* Don't hold the xlib-xcb lock while sleeping: that allows deadlock.
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* Allow unix:<screen> style display names again.
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* Bug #9119: test xcb_popcount
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* Fix unit tests for FreeBSD
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* NetBSD doesn't have AI_ADDRCONFIG: use it only if it's available.
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* Require libXau >= 0.99.2; earlier versions have a broken .pc file
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* Use substitition variables in xcb-xinerama.pc.in
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* Update autogen.sh to one that does objdir != srcdir
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* Add tools/* and autogen.sh to EXTRA_DIST.
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* Doxygen can now be fully disabled if desired.
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Documentation improvements:
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* Many fixes and updates to the tutorial.
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* Iterators, requests, and replies get partial Doxygen documentation.
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Release 1.0 (2006-11-23)
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========================
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The "Thanksgiving" release: We feel thankful to have it released. Five years
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have passed since XCB's initial commit on September 3rd, 2001:
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<http://gitweb.freedesktop.org/?p=xcb.git;a=commit;h=09e54c4a3c>
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* Support IPv6. XCB now supports displays with IPv6 addresses, with or without
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enclosing square brackets, or with hosts which resolve to IPv6 addresses, by
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using getaddrinfo instead of gethostbyname, and by including support for
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authentication for such connections. This allows such displays as "::1:1.1".
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* XCB now uses the libpthread-stubs, to properly support optional use of
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pthreads even on platforms which do not have all the necessary pthread stubs
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in libc or otherwise available by default.
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* Switch from the old AM_PATH_CHECK macro to pkg-config. check 0.9.4 is now
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required to build XCB's unit tests. The version that we were requiring was
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not actually new enough to let our unit tests compile, and the AM_PATH_CHECK
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macro is now considered deprecated. We know that versions of check using
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pkg-config are new enough to work, and the check dependency was optional
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anyway, so we've dropped support for older versions.
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* Provide a xcb_prefetch_maximum_request_length counterpart to
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xcb_get_maximum_request_length.
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* Fix Bug #5958: zero out padding bytes in requests.
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* Change xcb_connect to pass the display number to _xcb_get_auth_info, which
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passes it to get_authptr. This allows get_authptr to stop hacking the
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display number out of the sockaddrs of various address families, such as
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port - X_TCP_PORT, or the number after the last X in the UNIX socket path.
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* Remove --with-opt and --with-debug options from configure.ac; configure
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supports the use of custom CFLAGS, so please use that instead.
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* Reove support for the <localfield> tag in protocol descriptions, since they
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no longer use it, and since new protocol descriptions should not need it
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either.
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* xcb-proto has no libraries or headers, so don't use XCBPROTO_CFLAGS or
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XCBPROTO_LIBS.
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* XCB builds which use xdmcp now include it in Requires.private, to support
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static linking.
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* Replace "long" with uint32_t when used for a 32-bit quantity
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* Various enhancements to the generation of documentation with Doxygen:
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* Check for doxygen in configure.ac
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* Fix some Doxygen warnings.
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* Install documentation.
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* Handle out-of-tree builds, with srcdir != builddir. xcb.doxygen now gets
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generated from xcb.doxygen.in, so that it can use top_builddir and
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top_srcdir to find source and to output documentation.
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* Fill in PROJECT_NUMBER from @VERSION@, now that we have it readily
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available via autoconf.
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Release 1.0 RC3 (2006-11-02)
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============================
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Note: Version 0.9.4 of the test suite tool "check" provides a broken
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version of the AM_PATH_CHECK macro, which causes autoconf to fail due to
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insufficient quoting on the macro names it prints in its deprecation
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message. We have written a patch to fix this problem, available at:
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<http://bugs.debian.org/cgi-bin/bugreport.cgi/check-m4-am-path-check-use-quadrigraphs-in-macro-names-to-unbreak-autoconf.patch?bug=395466;msg=20;att=1>
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Version 0.9.4-2 of the Debian package for check includes this patch.
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Users of other distributions who want to re-autotool libxcb will need to
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apply this patch, use an older version of check, or wait for a fixed
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upstream version. This bug does not affect users who use the distributed
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tarballs and do not re-autotool.
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* Add library support for xcb-xinerama, using new protocol description
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from xcb-proto.
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* In the generated protocol code, define and use constants for opcode
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numbers rather than hard-coding them.
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* In the API conversion script, match only XCB-namespaced XID generators
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when converting to xcb_generate_id.
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* Quit treating xproto specially in Makefile.am: handle it like all the
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extensions.
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* Generate Doxygen documentation comments in the protocol stubs, and
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provide a Doxygen config file for building HTML documentation for XCB.
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* Add note to xcbxlib.h that nothing except Xlib/XCB should use it.
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* Extend test suite to test xcb_parse_display with NULL argument and
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display in $DISPLAY.
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Release 1.0 RC2 (2006-10-07)
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============================
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API changes
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-----------
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In our announcement of XCB 1.0 RC1, we proposed two API changes for
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community feedback:
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We would greatly appreciate API review in this final release
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candidate period. We've had some limited feedback that our attempts
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to impose static type safety on XIDs in C pose more a hindrance than
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a help, so we would appreciate discussion over whether this
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constitutes a "serious issue with the API". Some question also
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remains of whether xcb_poll_for_event should have the out-parameter
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'error', now that XCB has a more uniform mechanism for reporting
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connection errors. Speak now on these points or leave us alone. ;-)
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Since we've received feedback agreeing with our proposed changes, and no
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objections or requests to keep the existing API, we made both changes
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and bumped the soname to libxcb.so.1.0.0 in preparation for the release
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of XCB 1.0.
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* Remove XID wrapper structures and replace them with uint32_t typedefs.
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XID union types like xcb_drawable_t and xcb_fontable_t also become
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uint32_t typedefs. The API conversion script now replaces xcb_*_new
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with calls directly to xcb_generate_id. This change makes
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xcb_generate_id part of the client API rather than the extension API,
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so move xcb_generate_id from xcbext.h to xcb.h.
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* Remove the 'int *error' out-parameter for xcb_poll_for_event.
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xcb_poll_for_event now shuts down the xcb_connection_t on fatal
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errors; use xcb_connection_has_error to check.
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The Xlib-specific API in libxcb-xlib also changed:
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* Stop exposing the XCB IO lock for Xlib's benefit, by removing
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xcb_get_io_lock from the Xlib-specific XCB API; instead, libxcb-xlib
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now provides xcb_xlib_lock and xcb_xlib_unlock.
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Code generation changes
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-----------------------
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* The code generator no longer implicitly imports xproto for extensions.
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xcb-proto 1.0 RC2 includes the corresponding change to explicitly
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import xproto in extensions that need it
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* The generated protocol headers now declare "struct foo", "union foo"
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or "enum foo", not just the typedef "foo" of an unnamed
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struct/union/enum type.
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Bug Fixes
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---------
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* Make Plan 7 'checked' requests work correctly.
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Documentation improvements
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--------------------------
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* Document xcb_generate_id.
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* Tutorial enhancements.
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Release 1.0 RC1 (2006-09-25)
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============================
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The Great XCB Renaming
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----------------------
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Rename API to follow a new naming convention:
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* XCB_CONSTANTS_UPPERCASE_WITH_UNDERSCORES
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* xcb_functions_lowercase_with_underscores
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* xcb_types_lowercase_with_underscores_and_suffix_t
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* expand all abbreviations like "req", "rep", and "iter"
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Word boundaries for the names in the protocol descriptions fall:
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* Wherever the protocol descriptions already have an underscore
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* Between a lowercase letter and a subsequent uppercase letter
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* Before the last uppercase letter in a string of uppercase letters
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followed by a lowercase letter (such as in LSBFirst between LSB and
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First)
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* Before and after a string of digits (with exceptions for sized types
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like xcb_char2b_t and xcb_glx_float32_t to match the stdint.h
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convention)
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Also fix up some particular naming issues:
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* Rename shape_op and shape_kind to drop the "shape_" prefix, since
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otherwise these types end up as xcb_shape_shape_{op,kind}_t.
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* Remove leading underscores from enums in the GLX protocol description,
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previously needed to ensure a word separator, but now redundant.
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This renaming breaks code written for the previous API naming
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convention. The scripts in XCB's tools directory will convert code
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written for the old API to use the new API; they work well enough that
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we used them to convert the non-program-generated code in XCB, and when
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run on the old program-generated code, they almost exactly reproduce the
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new program-generated code (modulo whitespace and bugs in the old code
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generator).
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Authors: Vincent Torri, Thomas Hunger, Josh Triplett
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In addition to the API renaming, the library SONAMEs have changed to
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libxcb.so and libxcb-extname.so. The library major version remains at 0,
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to become version 1 before 1.0 is released; the SONAME lowercasing means
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that this will not conflict with XCB 0.9 libraries.
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The header files have moved from /usr/include/X11/XCB/ to
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/usr/include/xcb/. The XML-XCB protocol descriptions have moved to
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/usr/share/xcb, with extension descriptions no longer relegated to an
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extensions/ subdirectory. The API conversion script api_conv.pl will fix
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references to the header files, and packages using pkg-config will
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automatically use the new library names.
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Error handling Plan 7
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---------------------
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All request functions now come in an "unchecked" and "checked" variant.
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The checked variant allows callers to handle errors inline where they
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obtain the reply, or by calling xcb_request_check for requests with no
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reply. The unchecked variant uses the event queue for errors. Requests
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with replies default to checked, because the caller must already make a
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function call to retrieve the reply and can see the error at that time;
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the unchecked variant uses the suffix _unchecked. Requests without
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replies default to unchecked, because the caller will not necessarily
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expect to handle a response, and the checked variant uses the suffix
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_checked.
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Connection error handling
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-------------------------
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Fatal connection errors now put the xcb_connection_t object into an
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error state, at which point all further operations on that connection
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will fail. Callers can use the new xcb_connection_has_error function to
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check for this state in a connection. Functions that return a
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connection, such as the xcb_connect function, may instead return an
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xcb_connection_t already in an error state.
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In the future we expect to add additional API for getting more
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information about the error condition that caused the connection to get
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into an error state.
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Smaller API changes
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-------------------
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All functions that have been marked 'deprecated' up to now have been
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removed for this release. After XCB 1.0 is released, functions marked
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'deprecated' will be preserved until the end of time to maintain
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compatibility.
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XCB no longer provides a sync function. Most callers of this function
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should use xcb_flush instead, which usually provides the intended
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functionality and does not require a round-trip to the server. If you
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really need this functionality, either use xcb_get_input_focus like sync
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used to do, or use the xcb_aux_sync function from the xcb-aux library in
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xcb-util. However, note that we do not consider the libraries in
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xcb-util remotely stable yet.
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XCB no longer provides xcb_[extension_name]_init functions for each
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extension. These functions previously caused XCB to issue and process a
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QueryExtension request. Callers should now directly call
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xcb_get_extension_data on the xcb_[extension_name]_id, or use
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xcb_prefetch_extension_data if they do not need to force a round-trip
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immediately.
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The compatibility functions in xcbxlib.h, provided solely for use by
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Xlib/XCB, now exist in a separate library libxcb-xlib. We don't want to
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have to change the libxcb soname if we later change or remove the Xlib
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compatibility functions, and nothing except Xlib/XCB should ever use
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them. (Applications which use Xlib/XCB do not need this library either;
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Xlib/XCB only uses it internally.)
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The descriptions of several extensions have been updated to match the
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latest versions implemented in the X.org X server.
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GIT Repository split
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--------------------
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Previously, several XCB-related projects all existed under the umbrella
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of a single monolithic GIT repository with per-project subdirectories.
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We have split this repository into individual per-project repositories.
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Josh Triplett and Jamey Sharp wrote a tool called git-split to
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accomplish this repository split. git-split reconstructs the history of
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a sub-project previously stored in a subdirectory of a larger
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repository. It constructs new commit objects based on the existing tree
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objects for the subtree in each commit, and discards commits which do
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not affect the history of the sub-project, as well as merges made
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unnecessary due to these discarded commits.
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We would like to acknowledge the work of the gobby team in creating a
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collaborative editor which greatly aided the development of git-split
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(as well as these release notes).
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Build and implementation fixes
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------------------------------
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XCB no longer needs proto/x11 from X.org; the XCB header xproto.h
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provides the definitions from X.h, named according to XCB conventions.
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XCB should now build with non-GNU implementations of Make.
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XCB properly handles 32-bit wrap of sequence numbers, and thus now
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supports issuing more than 2**32 requests in one connection.
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Fixed bugs #7001, #7261.
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