XOY-Leveldb

小组成员：谢瑞阳、徐翔宇

Histórico

Hans Wennborg 36a5f8ed7f A number of fixes: - Replace raw slice comparison with a call to user comparator. Added test for custom comparators. - Fix end of namespace comments. - Fixed bug in picking inputs for a level-0 compaction. When finding overlapping files, the covered range may expand as files are added to the input set. We now correctly expand the range when this happens instead of continuing to use the old range. For example, suppose L0 contains files with the following ranges: F1: a .. d F2: c .. g F3: f .. j and the initial compaction target is F3. We used to search for range f..j which yielded {F2,F3}. However we now expand the range as soon as another file is added. In this case, when F2 is added, we expand the range to c..j and restart the search. That picks up file F1 as well. This change fixes a bug related to deleted keys showing up incorrectly after a compaction as described in Issue 44. (Sync with upstream @25072954)			13 anos atrás
..
win	reverting disastrous MOE commit, returning to r21	删除	13 anos atrás
README	reverting disastrous MOE commit, returning to r21		13 anos atrás
atomic_pointer.h	A number of fixes:		13 anos atrás
port.h	Platform detection during build, plus compatibility patches for machines without <cstdatomic>.		13 anos atrás
port_android.cc	A number of fixes:		13 anos atrás
port_android.h	A number of fixes:		13 anos atrás
port_example.h	A number of fixes:		13 anos atrás
port_posix.cc	A number of fixes:		13 anos atrás
port_posix.h	Adding FreeBSD support, removing Chromium files, adding benchmark.		13 anos atrás

README

This directory contains interfaces and implementations that isolate the
rest of the package from platform details.

Code in the rest of the package includes "port.h" from this directory.
"port.h" in turn includes a platform specific "port_<platform>.h" file
that provides the platform specific implementation.

See port_posix.h for an example of what must be provided in a platform
specific header file.