依然老规矩，不管什么类型的源码，都是场景驱动。所以后面肯定要Debug功能，提前把ctest的方式在源码工程搭建调通。后面每遇到一个功能点需要深入就调试跟进。
大数据这一块跟MySQL基于B+树的理念完全不一样，还是需要配合文档食用
RocksDB Wiki
1 根目录下cmake
在CMakeLists文件中添加
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| include(CTest)
enable_testing()
add_subdirectory(tests)
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2 调试代码
2.1 新建tests
mkdir tests 在源码根目录下新建tests放自己写的所有测试代码
2.2 cmake
touch tests/CMakeLists.txt 在tests目录下新建cmake
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| set(LIB_NAME rocksdb)
# Collect all cpp files in this directory
file(GLOB TEST_SOURCES CONFIGURE_DEPENDS "*.cpp")
foreach (TEST_SRC ${TEST_SOURCES})
# Extract file name without extension
get_filename_component(TEST_NAME ${TEST_SRC} NAME_WE)
# Create executable
add_executable(${TEST_NAME} ${TEST_SRC})
# Link main library
target_link_libraries(${TEST_NAME} PRIVATE ${LIB_NAME})
target_include_directories(${TEST_NAME}
PRIVATE ${PROJECT_SOURCE_DIR}/include
)
# Register with CTest
add_test(NAME ${TEST_NAME}
COMMAND ${TEST_NAME}
)
endforeach ()
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2.3 测试代码
在tests下新建测试代码
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#include <rocksdb/db.h>
#include <rocksdb/options.h>
#include <cassert>
#include <iostream>
int main() {
rocksdb::DB* db = nullptr;
rocksdb::Options options;
options.create_if_missing = true;
std::string db_path = "/tmp/rocksdb_ctest_put";
auto s = rocksdb::DB::Open(options, db_path, &db);
assert(s.ok());
s = db->Put(rocksdb::WriteOptions(), "hello", "rocksdb");
assert(s.ok());
delete db;
return 0;
}
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3 调试
我用的是clion，找到自己的这个target，进行编译/运行/调试
