# Copyright 2017 The LevelDB Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file. See the AUTHORS file for names of contributors.
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cmake_minimum_required(VERSION 3.9)
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# Keep the version below in sync with the one in db.h
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project(leveldb VERSION 1.22.0 LANGUAGES C CXX)
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# C standard can be overridden when this is used as a sub-project.
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if(NOT CMAKE_C_STANDARD)
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# This project can use C11, but will gracefully decay down to C89.
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set(CMAKE_C_STANDARD 11)
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set(CMAKE_C_STANDARD_REQUIRED OFF)
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set(CMAKE_C_EXTENSIONS OFF)
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endif(NOT CMAKE_C_STANDARD)
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# C++ standard can be overridden when this is used as a sub-project.
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if(NOT CMAKE_CXX_STANDARD)
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# This project requires C++11.
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set(CMAKE_CXX_STANDARD 11)
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set(CMAKE_CXX_STANDARD_REQUIRED ON)
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set(CMAKE_CXX_EXTENSIONS OFF)
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endif(NOT CMAKE_CXX_STANDARD)
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if (WIN32)
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set(LEVELDB_PLATFORM_NAME LEVELDB_PLATFORM_WINDOWS)
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# TODO(cmumford): Make UNICODE configurable for Windows.
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add_definitions(-D_UNICODE -DUNICODE)
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else (WIN32)
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set(LEVELDB_PLATFORM_NAME LEVELDB_PLATFORM_POSIX)
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endif (WIN32)
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option(LEVELDB_BUILD_TESTS "Build LevelDB's unit tests" ON)
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option(LEVELDB_BUILD_BENCHMARKS "Build LevelDB's benchmarks" ON)
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option(LEVELDB_INSTALL "Install LevelDB's header and library" ON)
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include(TestBigEndian)
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test_big_endian(LEVELDB_IS_BIG_ENDIAN)
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include(CheckIncludeFile)
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check_include_file("unistd.h" HAVE_UNISTD_H)
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include(CheckLibraryExists)
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check_library_exists(crc32c crc32c_value "" HAVE_CRC32C)
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check_library_exists(snappy snappy_compress "" HAVE_SNAPPY)
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check_library_exists(tcmalloc malloc "" HAVE_TCMALLOC)
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include(CheckCXXSymbolExists)
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# Using check_cxx_symbol_exists() instead of check_c_symbol_exists() because
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# we're including the header from C++, and feature detection should use the same
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# compiler language that the project will use later. Principles aside, some
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# versions of do not expose fdatasync() in <unistd.h> in standard C mode
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# (-std=c11), but do expose the function in standard C++ mode (-std=c++11).
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check_cxx_symbol_exists(fdatasync "unistd.h" HAVE_FDATASYNC)
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check_cxx_symbol_exists(F_FULLFSYNC "fcntl.h" HAVE_FULLFSYNC)
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check_cxx_symbol_exists(O_CLOEXEC "fcntl.h" HAVE_O_CLOEXEC)
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if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
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# Disable C++ exceptions.
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string(REGEX REPLACE "/EH[a-z]+" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /EHs-c-")
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add_definitions(-D_HAS_EXCEPTIONS=0)
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# Disable RTTI.
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string(REGEX REPLACE "/GR" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /GR-")
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else(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
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# Enable strict prototype warnings for C code in clang and gcc.
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if(NOT CMAKE_C_FLAGS MATCHES "-Wstrict-prototypes")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wstrict-prototypes")
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endif(NOT CMAKE_C_FLAGS MATCHES "-Wstrict-prototypes")
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# Disable C++ exceptions.
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string(REGEX REPLACE "-fexceptions" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-exceptions")
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# Disable RTTI.
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string(REGEX REPLACE "-frtti" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti")
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endif(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
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# Test whether -Wthread-safety is available. See
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# https://clang.llvm.org/docs/ThreadSafetyAnalysis.html
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include(CheckCXXCompilerFlag)
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check_cxx_compiler_flag(-Wthread-safety HAVE_CLANG_THREAD_SAFETY)
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include(CheckCXXSourceCompiles)
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# Test whether C++17 __has_include is available.
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check_cxx_source_compiles("
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#if defined(__has_include) && __has_include(<string>)
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#include <string>
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#endif
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int main() { std::string str; return 0; }
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" HAVE_CXX17_HAS_INCLUDE)
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set(LEVELDB_PUBLIC_INCLUDE_DIR "include/leveldb")
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set(LEVELDB_PORT_CONFIG_DIR "include/port")
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configure_file(
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"port/port_config.h.in"
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"${PROJECT_BINARY_DIR}/${LEVELDB_PORT_CONFIG_DIR}/port_config.h"
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)
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include_directories(
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"${PROJECT_BINARY_DIR}/include"
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"."
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)
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if(BUILD_SHARED_LIBS)
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# Only export LEVELDB_EXPORT symbols from the shared library.
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add_compile_options(-fvisibility=hidden)
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endif(BUILD_SHARED_LIBS)
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# Must be included before CMAKE_INSTALL_INCLUDEDIR is used.
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include(GNUInstallDirs)
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add_library(leveldb "")
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target_sources(leveldb
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PRIVATE
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"${PROJECT_BINARY_DIR}/${LEVELDB_PORT_CONFIG_DIR}/port_config.h"
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"db/builder.cc"
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"db/builder.h"
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"db/c.cc"
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"db/db_impl.cc"
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"db/db_impl.h"
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"db/db_iter.cc"
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"db/db_iter.h"
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"db/dbformat.cc"
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"db/dbformat.h"
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"db/dumpfile.cc"
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"db/filename.cc"
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"db/filename.h"
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"db/log_format.h"
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"db/log_reader.cc"
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"db/log_reader.h"
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"db/log_writer.cc"
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"db/log_writer.h"
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"db/memtable.cc"
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"db/memtable.h"
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"db/repair.cc"
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"db/skiplist.h"
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"db/snapshot.h"
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"db/table_cache.cc"
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"db/table_cache.h"
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"db/version_edit.cc"
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"db/version_edit.h"
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"db/version_set.cc"
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"db/version_set.h"
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"db/write_batch_internal.h"
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"db/write_batch.cc"
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"port/port_stdcxx.h"
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"port/port.h"
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"port/thread_annotations.h"
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"table/block_builder.cc"
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"table/block_builder.h"
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"table/block.cc"
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"table/block.h"
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"table/filter_block.cc"
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"table/filter_block.h"
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"table/format.cc"
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"table/format.h"
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"table/iterator_wrapper.h"
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"table/iterator.cc"
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"table/merger.cc"
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"table/merger.h"
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"table/table_builder.cc"
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"table/table.cc"
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"table/two_level_iterator.cc"
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"table/two_level_iterator.h"
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"util/arena.cc"
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"util/arena.h"
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"util/bloom.cc"
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"util/cache.cc"
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"util/coding.cc"
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"util/coding.h"
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"util/comparator.cc"
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"util/crc32c.cc"
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"util/crc32c.h"
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"util/env.cc"
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"util/filter_policy.cc"
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"util/hash.cc"
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"util/hash.h"
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"util/logging.cc"
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"util/logging.h"
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"util/mutexlock.h"
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"util/no_destructor.h"
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"util/options.cc"
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"util/random.h"
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"util/status.cc"
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# Only CMake 3.3+ supports PUBLIC sources in targets exported by "install".
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$<$<VERSION_GREATER:CMAKE_VERSION,3.2>:PUBLIC>
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"${LEVELDB_PUBLIC_INCLUDE_DIR}/c.h"
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"${LEVELDB_PUBLIC_INCLUDE_DIR}/cache.h"
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"${LEVELDB_PUBLIC_INCLUDE_DIR}/comparator.h"
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"${LEVELDB_PUBLIC_INCLUDE_DIR}/db.h"
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"${LEVELDB_PUBLIC_INCLUDE_DIR}/dumpfile.h"
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"${LEVELDB_PUBLIC_INCLUDE_DIR}/env.h"
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"${LEVELDB_PUBLIC_INCLUDE_DIR}/export.h"
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"${LEVELDB_PUBLIC_INCLUDE_DIR}/filter_policy.h"
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"${LEVELDB_PUBLIC_INCLUDE_DIR}/iterator.h"
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"${LEVELDB_PUBLIC_INCLUDE_DIR}/options.h"
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"${LEVELDB_PUBLIC_INCLUDE_DIR}/slice.h"
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"${LEVELDB_PUBLIC_INCLUDE_DIR}/status.h"
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"${LEVELDB_PUBLIC_INCLUDE_DIR}/table_builder.h"
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"${LEVELDB_PUBLIC_INCLUDE_DIR}/table.h"
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"${LEVELDB_PUBLIC_INCLUDE_DIR}/write_batch.h"
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)
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if (WIN32)
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target_sources(leveldb
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PRIVATE
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"util/env_windows.cc"
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"util/windows_logger.h"
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)
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else (WIN32)
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target_sources(leveldb
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PRIVATE
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"util/env_posix.cc"
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"util/posix_logger.h"
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)
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endif (WIN32)
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# MemEnv is not part of the interface and could be pulled to a separate library.
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target_sources(leveldb
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PRIVATE
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"helpers/memenv/memenv.cc"
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"helpers/memenv/memenv.h"
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)
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target_include_directories(leveldb
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PUBLIC
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$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
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$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
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)
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set_target_properties(leveldb
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PROPERTIES VERSION ${PROJECT_VERSION} SOVERSION ${PROJECT_VERSION_MAJOR})
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target_compile_definitions(leveldb
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PRIVATE
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# Used by include/export.h when building shared libraries.
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LEVELDB_COMPILE_LIBRARY
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# Used by port/port.h.
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${LEVELDB_PLATFORM_NAME}=1
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)
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if (NOT HAVE_CXX17_HAS_INCLUDE)
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target_compile_definitions(leveldb
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PRIVATE
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LEVELDB_HAS_PORT_CONFIG_H=1
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)
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endif(NOT HAVE_CXX17_HAS_INCLUDE)
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if(BUILD_SHARED_LIBS)
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target_compile_definitions(leveldb
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PUBLIC
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# Used by include/export.h.
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LEVELDB_SHARED_LIBRARY
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)
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endif(BUILD_SHARED_LIBS)
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if(HAVE_CLANG_THREAD_SAFETY)
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target_compile_options(leveldb
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PUBLIC
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-Werror -Wthread-safety)
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endif(HAVE_CLANG_THREAD_SAFETY)
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if(HAVE_CRC32C)
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target_link_libraries(leveldb crc32c)
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endif(HAVE_CRC32C)
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if(HAVE_SNAPPY)
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target_link_libraries(leveldb snappy)
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endif(HAVE_SNAPPY)
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if(HAVE_TCMALLOC)
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target_link_libraries(leveldb tcmalloc)
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endif(HAVE_TCMALLOC)
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# Needed by port_stdcxx.h
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find_package(Threads REQUIRED)
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target_link_libraries(leveldb Threads::Threads)
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add_executable(leveldbutil
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"db/leveldbutil.cc"
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)
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target_link_libraries(leveldbutil leveldb)
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if(LEVELDB_BUILD_TESTS)
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enable_testing()
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function(leveldb_test test_file)
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get_filename_component(test_target_name "${test_file}" NAME_WE)
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add_executable("${test_target_name}" "")
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target_sources("${test_target_name}"
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PRIVATE
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"${PROJECT_BINARY_DIR}/${LEVELDB_PORT_CONFIG_DIR}/port_config.h"
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"util/testharness.cc"
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"util/testharness.h"
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"util/testutil.cc"
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"util/testutil.h"
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"${test_file}"
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)
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target_link_libraries("${test_target_name}" leveldb)
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target_compile_definitions("${test_target_name}"
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PRIVATE
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${LEVELDB_PLATFORM_NAME}=1
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)
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if (NOT HAVE_CXX17_HAS_INCLUDE)
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target_compile_definitions("${test_target_name}"
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PRIVATE
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LEVELDB_HAS_PORT_CONFIG_H=1
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)
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endif(NOT HAVE_CXX17_HAS_INCLUDE)
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add_test(NAME "${test_target_name}" COMMAND "${test_target_name}")
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endfunction(leveldb_test)
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leveldb_test("db/c_test.c")
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leveldb_test("db/fault_injection_test.cc")
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leveldb_test("issues/issue178_test.cc")
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leveldb_test("issues/issue200_test.cc")
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leveldb_test("issues/issue320_test.cc")
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leveldb_test("util/env_test.cc")
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leveldb_test("util/status_test.cc")
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leveldb_test("util/no_destructor_test.cc")
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if(NOT BUILD_SHARED_LIBS)
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leveldb_test("db/autocompact_test.cc")
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leveldb_test("db/corruption_test.cc")
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leveldb_test("db/db_test.cc")
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leveldb_test("db/dbformat_test.cc")
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leveldb_test("db/filename_test.cc")
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leveldb_test("db/log_test.cc")
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leveldb_test("db/recovery_test.cc")
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leveldb_test("db/skiplist_test.cc")
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leveldb_test("db/version_edit_test.cc")
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leveldb_test("db/version_set_test.cc")
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leveldb_test("db/write_batch_test.cc")
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leveldb_test("helpers/memenv/memenv_test.cc")
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leveldb_test("table/filter_block_test.cc")
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leveldb_test("table/table_test.cc")
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leveldb_test("util/arena_test.cc")
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leveldb_test("util/bloom_test.cc")
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leveldb_test("util/cache_test.cc")
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leveldb_test("util/coding_test.cc")
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leveldb_test("util/crc32c_test.cc")
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leveldb_test("util/hash_test.cc")
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leveldb_test("util/logging_test.cc")
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# TODO(costan): This test also uses
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# "util/env_{posix|windows}_test_helper.h"
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if (WIN32)
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leveldb_test("util/env_windows_test.cc")
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else (WIN32)
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leveldb_test("util/env_posix_test.cc")
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endif (WIN32)
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endif(NOT BUILD_SHARED_LIBS)
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endif(LEVELDB_BUILD_TESTS)
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if(LEVELDB_BUILD_BENCHMARKS)
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function(leveldb_benchmark bench_file)
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get_filename_component(bench_target_name "${bench_file}" NAME_WE)
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add_executable("${bench_target_name}" "")
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target_sources("${bench_target_name}"
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PRIVATE
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|
"${PROJECT_BINARY_DIR}/${LEVELDB_PORT_CONFIG_DIR}/port_config.h"
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|
"util/histogram.cc"
|
|
"util/histogram.h"
|
|
"util/testharness.cc"
|
|
"util/testharness.h"
|
|
"util/testutil.cc"
|
|
"util/testutil.h"
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|
|
|
"${bench_file}"
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)
|
|
target_link_libraries("${bench_target_name}" leveldb)
|
|
target_compile_definitions("${bench_target_name}"
|
|
PRIVATE
|
|
${LEVELDB_PLATFORM_NAME}=1
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|
)
|
|
if (NOT HAVE_CXX17_HAS_INCLUDE)
|
|
target_compile_definitions("${bench_target_name}"
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PRIVATE
|
|
LEVELDB_HAS_PORT_CONFIG_H=1
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|
)
|
|
endif(NOT HAVE_CXX17_HAS_INCLUDE)
|
|
endfunction(leveldb_benchmark)
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|
|
|
if(NOT BUILD_SHARED_LIBS)
|
|
leveldb_benchmark("benchmarks/db_bench.cc")
|
|
endif(NOT BUILD_SHARED_LIBS)
|
|
|
|
check_library_exists(sqlite3 sqlite3_open "" HAVE_SQLITE3)
|
|
if(HAVE_SQLITE3)
|
|
leveldb_benchmark("benchmarks/db_bench_sqlite3.cc")
|
|
target_link_libraries(db_bench_sqlite3 sqlite3)
|
|
endif(HAVE_SQLITE3)
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|
|
|
# check_library_exists is insufficient here because the library names have
|
|
# different manglings when compiled with clang or gcc, at least when installed
|
|
# with Homebrew on Mac.
|
|
set(OLD_CMAKE_REQURED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
|
|
list(APPEND CMAKE_REQUIRED_LIBRARIES kyotocabinet)
|
|
check_cxx_source_compiles("
|
|
#include <kcpolydb.h>
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|
|
|
int main() {
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|
kyotocabinet::TreeDB* db = new kyotocabinet::TreeDB();
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delete db;
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return 0;
|
|
}
|
|
" HAVE_KYOTOCABINET)
|
|
set(CMAKE_REQUIRED_LIBRARIES ${OLD_CMAKE_REQURED_LIBRARIES})
|
|
if(HAVE_KYOTOCABINET)
|
|
leveldb_benchmark("benchmarks/db_bench_tree_db.cc")
|
|
target_link_libraries(db_bench_tree_db kyotocabinet)
|
|
endif(HAVE_KYOTOCABINET)
|
|
endif(LEVELDB_BUILD_BENCHMARKS)
|
|
|
|
if(LEVELDB_INSTALL)
|
|
install(TARGETS leveldb
|
|
EXPORT leveldbTargets
|
|
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
|
|
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
|
|
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
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|
)
|
|
install(
|
|
FILES
|
|
"${LEVELDB_PUBLIC_INCLUDE_DIR}/c.h"
|
|
"${LEVELDB_PUBLIC_INCLUDE_DIR}/cache.h"
|
|
"${LEVELDB_PUBLIC_INCLUDE_DIR}/comparator.h"
|
|
"${LEVELDB_PUBLIC_INCLUDE_DIR}/db.h"
|
|
"${LEVELDB_PUBLIC_INCLUDE_DIR}/dumpfile.h"
|
|
"${LEVELDB_PUBLIC_INCLUDE_DIR}/env.h"
|
|
"${LEVELDB_PUBLIC_INCLUDE_DIR}/export.h"
|
|
"${LEVELDB_PUBLIC_INCLUDE_DIR}/filter_policy.h"
|
|
"${LEVELDB_PUBLIC_INCLUDE_DIR}/iterator.h"
|
|
"${LEVELDB_PUBLIC_INCLUDE_DIR}/options.h"
|
|
"${LEVELDB_PUBLIC_INCLUDE_DIR}/slice.h"
|
|
"${LEVELDB_PUBLIC_INCLUDE_DIR}/status.h"
|
|
"${LEVELDB_PUBLIC_INCLUDE_DIR}/table_builder.h"
|
|
"${LEVELDB_PUBLIC_INCLUDE_DIR}/table.h"
|
|
"${LEVELDB_PUBLIC_INCLUDE_DIR}/write_batch.h"
|
|
DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/leveldb"
|
|
)
|
|
|
|
include(CMakePackageConfigHelpers)
|
|
configure_package_config_file(
|
|
"cmake/${PROJECT_NAME}Config.cmake.in"
|
|
"${PROJECT_BINARY_DIR}/cmake/${PROJECT_NAME}Config.cmake"
|
|
INSTALL_DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}"
|
|
)
|
|
write_basic_package_version_file(
|
|
"${PROJECT_BINARY_DIR}/cmake/${PROJECT_NAME}ConfigVersion.cmake"
|
|
COMPATIBILITY SameMajorVersion
|
|
)
|
|
install(
|
|
EXPORT leveldbTargets
|
|
NAMESPACE leveldb::
|
|
DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}"
|
|
)
|
|
install(
|
|
FILES
|
|
"${PROJECT_BINARY_DIR}/cmake/${PROJECT_NAME}Config.cmake"
|
|
"${PROJECT_BINARY_DIR}/cmake/${PROJECT_NAME}ConfigVersion.cmake"
|
|
DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}"
|
|
)
|
|
endif(LEVELDB_INSTALL)
|