Merge PIVX-Project#14: Merge upstream LevelDB 1.19

a31c8aa Add NewAppendableFile for win32 environment (Wladimir J. van der Laan)
3080a45 Increase leveldb version to 1.19. (cmumford)
fa6dc01 A zippy change broke test assumptions about the size of compressed output. Fix the tests by allowing more slop in zippy's behavior. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=123432472 (sanjay)
06a191b fix problems in LevelDB's caching code (m3b)
a7bff69 Fix LevelDB build when asserts are enabled in release builds. (PIVX-Project#367) (John Abd-El-Malek)
ea992b4 Change std::uint64_t to uint64_t (PIVX-Project#354) (Nicholas Westlake)
e84b5bd This CL fixes a bug encountered when reading records from leveldb files that have been split, as in a [] input task split. (mjwiacek)
3211343 Deleted redundant null ptr check prior to delete. (cmumford)
6b18316 Fix signed/unsigned mismatch on VC++ builds (Bruce Dawson)
adbe3eb Putting build artifacts in subdirectory. (cmumford)
dd1c3c3 add travis build badge (Lars-Magnus Skog)
9fcae61 Added a Travis CI build file. (Chris Mumford)
76bba13 fix indent (ideawu)
8fcceb2 log compaction output file's level along with number (ideawu)
edf2939 Update README.md (Venilton FalvoJr)
ceff6f1 Fix Android/MIPS build. (David Turner)
4753c9b Added a contributors section to README.md (cmumford)
0e0f074 documentation. improved link (Paul Irish)
c85addc readme: improved documentation link (Paul Irish)
706b7f8 Resolve race when getting approximate-memory-usage property (ssid)
3c9ff3c Only compiling TrimSpace on linux. (cmumford)
f8d205c Including atomic_pointer.h in port_posix (cmumford)
889de31 Let LevelDB use xcrun to determine Xcode.app path instead of using a hardcoded path. (ndmatthews)
528c2bc Add "approximate-memory-usage" property to leveldb::DB::GetProperty (ssid)
359b6bc Add leveldb::Cache::Prune (tzik)
50e77a8 Fix size_t/int comparison/conversion issues in leveldb. (pkasting)
5208e79 Added leveldb::Status::IsInvalidArgument() method. (cmumford)
ce45404 Suppress error reporting after seeking but before a valid First or Full record is encountered. (Mike Wiacek)
b9afa1f include <assert> -> <cassert> (Chris Mumford)
65190ac Will not reuse manifest if reuse_logs options is false. (Chris Mumford)
ac1d69d LevelDB now attempts to reuse the preceding MANIFEST and log file when re-opened. (Sanjay Ghemawat)
77948e7 Add benchmark that measures cost of repeatedly opening the database. (Sanjay Ghemawat)
34ad72e Move header guard below copyright banner. (Chris Mumford)
a75d435 Clean up layering of storage/leveldb/... (Chris Mumford)
b234f65 Added a new fault injection test. (Chris Mumford)
c4c38f9 Add arm64 support to leveldb. (Chris Mumford)
cea9b10 Fixed incorrect comment wording for Iterator::Seek. (Chris Mumford)
c00c569 Deleted old README file. (Chris Mumford)

Tree-SHA512: 9f0ea5e306383be2691e79d17a4fd7093c0aec7e15e8ff257e06a938f0c1cb8af9ef610b870c8253f3bd18c09d5e4b0223a92987814c38ac38282a8c2cafa881

.travis.yml

@@ -0,0 +1,13 @@
+language: cpp
+compiler:
+- clang
+- gcc
+os:
+- linux
+- osx
+sudo: false
+before_install:
+- echo $LANG
+- echo $LC_ALL
+script:
+- make -j 4 check