#12311: xapian-core-1.4.12
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Reporter: bdubbs | Owner: bdubbs
Type: enhancement | Status: assigned
Priority: normal | Milestone: 9.0
Component: BOOK | Version: SVN
Severity: normal | Resolution:
Keywords: |
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Comment (by bdubbs):
Xapian-core 1.4.12 (2019-07-23):
API:
* Xapian::PostingSource: When a PostingSource without a clone() method is
used
with a Database containing multiple shards, the documented behaviour has
always been that Xapian::InvalidOperationError is thrown. However,
since at
least 1.4.0, this exception hasn't been thrown, but instead a single
PostingSource object would get used for all the shards, typically
leading to
incorrect results. The actual behaviour now matches what was
documented.
* Xapian::Database: Add size() method which reports the number of shards.
* Xapian::Database::check(): You can now pass a stub database which will
check
all the databases listed in it (or throw Xapian::UnimplementError for
backends which don't support checking).
* Xapian::Document: When updating a document use a emplace_hint() to make
the
bulk insertion O(n) instead of O(n·log(n)), and use std::move() to avoid
copying OmDocumentTerm objects.
* Xapian::Query: Add missing get_unique_terms_end() method.
* Xapian::iterator_valid(): Implement for Utf8Iterator
testsuite:
* Fix keepalive1 failures on some platforms. On some platforms a timeout
gives NetworkTimeoutError and on others NetworkError - since 1.4.10
changed
to checking the exact exception type, keepalive1 has been failing on the
former set of platforms. We now just check for NetworkError or a
subclass
here (since NetworkTimeoutError is a subclass of NetworkError).
* Run cursordelbug1 testcase with multi databases too.
matcher:
* Ownership of PostingSource objects during the match now makes use of the
optional reference-counting mechanism rather than a separate flag.
remote backend:
* Fix remote protocol design bug. Previously some messages didn't send a
reply
but could result in an exception being sent over the link. That
exception
would then get read as a response to the next message instead of its
actual
response so we'd be out of step. Fixes #783, reported by Germán M.
Bravo.
This fix necessitated a minor version bump in the remote protocol (to
39.1).
If you are upgrading a live system which uses the remote backend,
upgrade the
servers before the clients.
* Fix socket leaks on errors during opening a database. Fixes
https://github.com/xapian/xapian/pull/237 and #781, reported by Germán
M.
Bravo.
* Don't close remote DB socket on receiving EOF as the levels above won't
know it's been closed and may try to perform operations on it, which
would be
problematic if that fd gets reused in the meantime. Leaving it open
means
any further operations will also get EOF. Reported by Germán M. Bravo.
* We add a wrapper around the libc socket() function which deals with the
corner case where SOCK_CLOEXEC is defined but socket() fails if it is
specified (which can happen with a newer libc and older kernel).
Unfortunately, this wrapper wasn't checking the returned value from
socket()
correctly, so when SOCK_CLOEXEC was specified and non-zero it would
create
the socket() with SOCK_CLOEXEC, then leak that one and create it again
without SOCK_CLOEXEC. We now check the return value properly.
* Fix potential infinite loop in ValueCountMatchSpy::merge_results() if
passed
serialised results with extra data appended (which shouldn't happen in
normal
use).
build system:
* Current versions of valgrind result in false positives on current
versions of
macOS, so on this platform configure now only enables use of valgrind if
it's
specified explicitly. Fixes #713, reported by Germán M. Bravo.
* Refactor macros to probe for compiler flags so they automatically cache
their results and consistently report success/failure.
* Rename our custom TYPE_SOCKLEN_T macro to XAPIAN_TYPE_SOCKLEN_T. The
AX_TYPE_SOCKLEN_T macro defines an alias of TYPE_SOCKLEN_T for itself
which
means it can get used instead in some situations, but it isn't
compatible
with our macro. We can't just switch to AX_TYPE_SOCKLEN_T as it doesn't
handle cases we need, so just rename our macro to avoid potential
problems.
documentation:
* Improve API documentation for Xapian::Query class. Add missing doc
comments and improve some of the existing ones. Problems highlighted by
Дилян Палаузов in #790.
* Add Unicode consortium names and codes for categories from Chapter 4,
Version
11 of the Unicode standard. Patch from David Bremner.
* Improve configure --help output - drop "[default=no]" for --enable-*
options which default off. Fixes #791, reported by and patch from Дилян
Палаузов.
* Fix API documentation typo - Query::op (the type) not op_ (a parameter
name).
* Note which version Document::remove_postings() was added in.
* In the remote protocol documentation, MSG_REPLACEDOCUMENTTERM was
documented
as not having a reply, but actually REPLY_ADDDOCUMENT is sent.
* Update list of <xapian/iterator.h> users.
tools:
* copydatabase: A change in 1.4.6 which added support for \ as directory
separator on platforms where that's the norm broke the code in
copydatabase
which removes a trailing slash from input databases.
portability:
* Resolve crash on Windows when using clang-cl and MSVC. Reported by
Christian
Mollekopf in https://github.com/xapian/xapian/pull/256.
* Add missing '#include <cstring>'. Patch from Tanmay Sachan.
* Fix str() helper function when converting the most negative value
of a signed integer type.
* Avoid calling close() on fd we know must actually be a WIN32 SOCKET.
* Include <ios> not <iomanip> for std::boolalpha.
* Rework setenv() compatibility handling. Now that Solaris 9 is dead we
can
assume setenv() is provided by Unix-like platforms (POSIX requires it).
For
other platforms, provide a compatibility implementation of setenv()
which
so the compatibility code is encapsulated in one place rather than
replicated
at every use.
* Fix maintainer-mode builds on Solaris where /bin/tr is not POSIX
compliant.
We now use the simple workaround suggested by the autoconf manual.
* Improve support for Sun C++ (see #631):
+ Suppress unhelpful warning for lambda with multiple return statements.
+ Enable reporting the tags corresponding to warnings, which we need
to know in order to suppress any new unhelpful warnings.
+ Adjust our workaround for bug with this compiler's <cmath> header to
avoid
a compiler warning.
+ Use -xldscope=symbolic for Sun C++. This flag is roughly equivalent
to
-Bsymbolic-functions which we've probed for with GNU ld since Xapian
1.0.0.
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