Updated from extremeheat/leveldb-mcpe

.gitignore

@@ -7,3 +7,13 @@ build_config.mk
 *_test
 db_bench
 leveldbutil
+bin/
+
+CMakeCache*
+*.cmake
+CMakeFiles*
+
+# build
+build*/
+Win32/
+leveldb.dir/

CMakeLists.txt

@@ -0,0 +1,77 @@
+project(leveldb)
+cmake_minimum_required(VERSION 3.2)
+
+include(CheckCXXCompilerFlag)
+
+list(APPEND SOURCES db/builder.cc)
+list(APPEND SOURCES db/c.cc)
+list(APPEND SOURCES db/db_impl.cc)
+list(APPEND SOURCES db/db_iter.cc)
+list(APPEND SOURCES db/dbformat.cc)
+list(APPEND SOURCES db/filename.cc)
+list(APPEND SOURCES db/log_reader.cc)
+list(APPEND SOURCES db/log_writer.cc)
+list(APPEND SOURCES db/memtable.cc)
+list(APPEND SOURCES db/repair.cc)
+list(APPEND SOURCES db/table_cache.cc)
+list(APPEND SOURCES db/version_edit.cc)
+list(APPEND SOURCES db/version_set.cc)
+list(APPEND SOURCES db/write_batch.cc)
+list(APPEND SOURCES table/block.cc)
+list(APPEND SOURCES table/block_builder.cc)
+list(APPEND SOURCES table/filter_block.cc)
+list(APPEND SOURCES table/format.cc)
+list(APPEND SOURCES table/iterator.cc)
+list(APPEND SOURCES table/merger.cc)
+list(APPEND SOURCES table/table.cc)
+list(APPEND SOURCES table/table_builder.cc)
+list(APPEND SOURCES table/two_level_iterator.cc)
+list(APPEND SOURCES util/arena.cc)
+list(APPEND SOURCES util/bloom.cc)
+list(APPEND SOURCES util/cache.cc)
+list(APPEND SOURCES util/coding.cc)
+list(APPEND SOURCES util/comparator.cc)
+list(APPEND SOURCES util/crc32c.cc)
+list(APPEND SOURCES util/env.cc)
+list(APPEND SOURCES util/filter_policy.cc)
+list(APPEND SOURCES util/hash.cc)
+list(APPEND SOURCES util/histogram.cc)
+list(APPEND SOURCES util/logging.cc)
+list(APPEND SOURCES util/options.cc)
+list(APPEND SOURCES util/status.cc)
+list(APPEND SOURCES db/zlib_compressor.cc)
+list(APPEND SOURCES db/zstd_compressor.cc)
+list(APPEND SOURCES port/port_posix_sse.cc)
+include_directories(. include)
+
+if (UNIX)
+    list(APPEND SOURCES port/port_posix.cc)
+    list(APPEND SOURCES util/env_posix.cc)
+
+    add_definitions(-DLEVELDB_PLATFORM_POSIX "-DDLLX=")
+    if(APPLE)
+        add_definitions(-DOS_MACOSX)
+    endif()
+
+    CHECK_CXX_COMPILER_FLAG("-std=c++11" COMPILER_SUPPORTS_CXX11)
+
+    if(COMPILER_SUPPORTS_CXX11)
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
+    else()
+        message(FATAL_ERROR "The compiler ${CMAKE_CXX_COMPILER} has no C++11 support. Please use a different C++ compiler.")
+    endif()
+
+elseif (WIN32)
+    list(APPEND SOURCES port/port_win.cc)
+    list(APPEND SOURCES util/env_win.cc)
+    list(APPEND SOURCES util/win_logger.cc)
+    add_definitions(-DLEVELDB_PLATFORM_WINDOWS "-DDLLX=__declspec(dllexport)")
+endif()
+
+add_library(leveldb ${SOURCES})
+
+find_package(ZLIB REQUIRED)
+if (ZLIB_FOUND)
+    include_directories( ${ZLIB_INCLUDE_DIRS} )
+    target_link_libraries( leveldb ${ZLIB_LIBRARIES} )
+endif(ZLIB_FOUND)

db/c.cc

@@ -5,7 +5,9 @@
 #include "leveldb/c.h"
 
 #include <stdlib.h>
+#ifndef _WIN32
 #include <unistd.h>
+#endif
 #include "leveldb/cache.h"
 #include "leveldb/comparator.h"
 #include "leveldb/db.h"
@@ -16,7 +18,9 @@
 #include "leveldb/status.h"
 #include "leveldb/write_batch.h"
 #include "leveldb/zlib_compressor.h"
+#ifdef SNAPPY
 #include "leveldb/snappy_compressor.h"
+#endif
 
 using leveldb::Cache;
 using leveldb::Comparator;

port/port_win.cc

@@ -40,7 +40,7 @@
 #ifdef SNAPPY
 	#include <snappy/snappy.h>
 #elif defined(ZLIB)
-	#include <zlib/zlib.h>
+	#include <zlib.h>
 #endif
 
 namespace leveldb {

port/port_win.h

@@ -40,6 +40,8 @@
 #include <cassert>
 #include <condition_variable>
 
+typedef ptrdiff_t ssize_t;
+
 namespace leveldb {
 	namespace port {