[代码重构与功能更新]

- 在`breakpad.cc`中，增加了对宽字符串到UTF-8字符串转换的函数，以支持在Windows平台上更准确地处理错误信息和日志记录。
- 更新了`Breakpad`类的析构函数，使用`= default`以使用编译器提供的默认析构函数。
- 更新了根`CMakeLists.txt`文件中的`cmake_minimum_required`版本，从3.5更新到3.18，以支持更多现代化的CMake特性。
- 在`CountDownLatch`的测试用例中，增加了对`CountDownLatch`实际使用场景的模拟，通过模拟多个工作线程和清理线程，展示了`CountDownLatch`如何在实际应用中同步线程。
- 在`main.cc`中，对Glog日志系统的配置进行了改进，增加了日志目录的创建，并调整了日志清理的策略。
- 在`openssl_x509.cc`中，使用更现代的OpenSSL API生成和验证X509证书，移除了已弃用的函数，改用`BIO_new_file`和`PEM_read_bio_*`函数进行文件操作，提高了代码的健壮性。
- 在根`CMakeLists.txt`文件中，将项目名称从`Cpp-Example`修正为`Cpp-Examples`，以反映项目的实际内容。
- 新增了`vcpkg.json`文件，集中声明了项目的vcpkg依赖，简化了依赖管理过程。

Author: RealChuan

Breakpad/breakpad.cc

@@ -13,21 +13,42 @@
 #include <locale>
 
 #ifdef _WIN32
-bool callback(const wchar_t *dump_path,
+
+auto convertWideStringToUTF8(const wchar_t *wstr) -> std::string
+{
+    if (wstr == nullptr) {
+        return {};
+    }
+
+    // 首先，获取转换后的字符串长度（不包括空终止符）
+    int len = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, nullptr, 0, nullptr, nullptr);
+
+    // 如果转换失败，返回空字符串
+    if (len == 0) {
+        return {};
+    }
+
+    // 分配足够的空间来存储转换后的字符串
+    std::string utf8String(len, 0);
+
+    // 执行转换
+    WideCharToMultiByte(CP_UTF8, 0, wstr, -1, &utf8String[0], len, nullptr, nullptr);
+
+    // 去除末尾的空字符
+    utf8String.resize(len - 1);
+    return utf8String;
+}
+
+auto callback(const wchar_t *dump_path,
               const wchar_t *id,
               void *context,
               EXCEPTION_POINTERS *exinfo,
               MDRawAssertionInfo *assertion,
-              bool succeeded)
+              bool succeeded) -> bool
 {
-    auto succeeded_str = succeeded ? "succeeded" : "fialed";
-    auto convert_str = [](const wchar_t *wstr) {
-        std::wstring_convert<std::codecvt_utf8<wchar_t>> converter;
-        return converter.to_bytes(wstr);
-    };
-    auto dump_path_str = convert_str(dump_path) + convert_str(id);
-    std::cout << "Create dump file " << succeeded_str << " Dump path: " << dump_path_str
-              << std::endl;
+    const auto *succeeded_str = succeeded ? "succeeded" : "fialed";
+    auto dump_path_str = convertWideStringToUTF8(dump_path) + convertWideStringToUTF8(id);
+    std::cout << "Create dump file " << succeeded_str << " Dump path: " << dump_path_str << '\n';
     return succeeded;
 }
 #elif __APPLE__
@@ -66,4 +87,4 @@ Breakpad::Breakpad(const std::string &dump_path)
 #endif
 }
 
-Breakpad::~Breakpad() {}
+Breakpad::~Breakpad() = default;

CMakeLists.txt

@@ -1,5 +1,5 @@
 # 设定版本号
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.18)
 
 if(CMAKE_HOST_WIN32)
   set(CMAKE_TOOLCHAIN_FILE

CountDownLatch/CMakeLists.txt

@@ -1,5 +1,5 @@
-add_executable(CountDownLatch_test main.cc countdownlatch.hpp)
+add_executable(countdownlatch_test main.cc countdownlatch.hpp)
 
 if(CMAKE_HOST_UNIX)
-  target_link_libraries(CountDownLatch_test pthread)
+  target_link_libraries(countdownlatch_test pthread)
 endif()

CountDownLatch/main.cc

@@ -3,16 +3,53 @@
 #include <iostream>
 #include <thread>
 
+struct Job
+{
+    const std::string name;
+    std::string product{"not worked"};
+    std::thread action{};
+};
+
+void countDownLatchTest()
+{
+    Job jobs[]{{"Annika"}, {"Buru"}, {"Chuck"}};
+
+    CountDownLatch work_done{std::size(jobs)};
+    CountDownLatch start_clean_up{1};
+
+    auto work = [&](Job &my_job) {
+        my_job.product = my_job.name + " worked";
+        work_done.countDown();
+        start_clean_up.wait();
+        my_job.product = my_job.name + " cleaned";
+    };
+
+    std::cout << "Work is starting... ";
+    for (auto &job : jobs) {
+        job.action = std::thread{work, std::ref(job)};
+    }
+
+    work_done.wait();
+    std::cout << "done:\n";
+    for (auto const &job : jobs) {
+        std::cout << "  " << job.product << '\n';
+    }
+
+    std::cout << "Workers are cleaning up... ";
+    start_clean_up.countDown();
+    for (auto &job : jobs) {
+        job.action.join();
+    }
+
+    std::cout << "done:\n";
+    for (auto const &job : jobs) {
+        std::cout << "  " << job.product << '\n';
+    }
+}
+
 auto main() -> int
 {
-    CountDownLatch latch(1);
-    std::thread thread([&]() {
-        std::cout << "thread start" << std::endl;
-        latch.wait();
-        std::cout << "thread end" << std::endl;
-    });
-    std::cout << "main start" << std::endl;
-    latch.countDown();
-    thread.join();
-    std::cout << "main end" << std::endl;
+    countDownLatchTest();
+
+    return 0;
 }

Glog/main.cc

@@ -5,29 +5,33 @@
 auto main(int argc, char **argv) -> int
 {
     (void) argc;
-    (void) argv;
+
+    const auto *log_dir = "./glog_demo";
 
     // Initialize Google’s logging library.
     google::InitGoogleLogging(argv[0]);
     google::InstallFailureSignalHandler();
     google::SetLogFilenameExtension(".log");
-    google::EnableLogCleaner(3);
+    google::EnableLogCleaner(7);
     //google::DisableLogCleaner();
-    FLAGS_alsologtostderr = true;  //是否将日志输出到文件和stderr
-    FLAGS_colorlogtostderr = true; //是否启用不同颜色显示
-    fLS::FLAGS_log_dir = "./Log";
+    FLAGS_alsologtostderr = true;  // 是否将日志输出到文件和stderr
+    FLAGS_colorlogtostderr = true; // 是否启用不同颜色显示
+    FLAGS_max_log_size = 1000;     // 最大日志文件大小
+    fLS::FLAGS_log_dir = log_dir;
+
+    std::filesystem::create_directories(log_dir);
 
-    std::filesystem::create_directories("./Log");
+    std::string message("Hello World");
 
-    LOG(INFO) << "INFO_LOG Hello, world!";
-    LOG(WARNING) << "WARNING_LOG Hello, world!";
-    LOG(ERROR) << "ERROR_LOG Hello, world!";
-    //LOG(FATAL) << "FATAL_LOG Hello, world!";
+    LOG(INFO) << message;
+    LOG(WARNING) << message;
+    LOG(ERROR) << message;
+    // LOG(FATAL) << message;
 
-    DLOG(INFO) << "DINFO_LOG Hello, world!";
-    DLOG(WARNING) << "DWARNING_LOG Hello, world!";
-    DLOG(ERROR) << "DERROR_LOG Hello, world!";
-    //DLOG(FATAL) << "DFATAL_LOG Hello, world!";
+    DLOG(INFO) << message;
+    DLOG(WARNING) << message;
+    DLOG(ERROR) << message;
+    // DLOG(FATAL) << message;
 
     google::ShutdownGoogleLogging();
     return 0;

OpenSSL/openssl_x509.cc

@@ -12,65 +12,94 @@
 void x509_generate_certificate(const std::string &x509Path, const std::string &pkeyPath)
 {
     // 生成私钥
-    EVP_PKEY *pkey = EVP_PKEY_new();
-    EVP_PKEY_assign_RSA(pkey, RSA_generate_key(2048, RSA_F4, NULL, NULL));
+    auto *pKey = EVP_RSA_gen(2048);
 
     // 生成证书
     X509 *x509 = X509_new();
     X509_set_version(x509, 2);
     ASN1_INTEGER_set(X509_get_serialNumber(x509), 1);
     X509_gmtime_adj(X509_get_notBefore(x509), 0);
     X509_gmtime_adj(X509_get_notAfter(x509), 31536000L);
-    X509_set_pubkey(x509, pkey);
+    X509_set_pubkey(x509, pKey);
 
     // 设置证书信息
     X509_NAME *name = X509_get_subject_name(x509);
-    X509_NAME_add_entry_by_txt(name, "C", MBSTRING_ASC, (const unsigned char *) "CN", -1, -1, 0);
-    X509_NAME_add_entry_by_txt(name, "O", MBSTRING_ASC, (const unsigned char *) "CN", -1, -1, 0);
-    X509_NAME_add_entry_by_txt(name, "CN", MBSTRING_ASC, (const unsigned char *) "CN", -1, -1, 0);
+    X509_NAME_add_entry_by_txt(name,
+                               "C",
+                               MBSTRING_ASC,
+                               reinterpret_cast<const unsigned char *>("CN"),
+                               -1,
+                               -1,
+                               0);
+    X509_NAME_add_entry_by_txt(name,
+                               "O",
+                               MBSTRING_ASC,
+                               reinterpret_cast<const unsigned char *>("CN"),
+                               -1,
+                               -1,
+                               0);
+    X509_NAME_add_entry_by_txt(name,
+                               "CN",
+                               MBSTRING_ASC,
+                               reinterpret_cast<const unsigned char *>("CN"),
+                               -1,
+                               -1,
+                               0);
     X509_set_issuer_name(x509, name);
 
     // 签名证书
-    X509_sign(x509, pkey, EVP_sha1());
+    X509_sign(x509, pKey, EVP_sha1());
 
     // 保存证书
-    FILE *fp = fopen(x509Path.c_str(), "wb");
-    PEM_write_X509(fp, x509);
-    fclose(fp);
+    auto *out = BIO_new_file(x509Path.c_str(), "w");
+    if (out != nullptr) {
+        PEM_write_bio_X509(out, x509);
+        BIO_free(out);
+    }
 
     // 保存私钥
-    fp = fopen(pkeyPath.c_str(), "wb");
-    PEM_write_PrivateKey(fp, pkey, NULL, NULL, 0, NULL, NULL);
-    fclose(fp);
+    out = BIO_new_file(pkeyPath.c_str(), "w");
+    if (out != nullptr) {
+        PEM_write_bio_PrivateKey(out, pKey, nullptr, nullptr, 0, nullptr, nullptr);
+        BIO_free(out);
+    }
 
     // 释放资源
     X509_free(x509);
-    EVP_PKEY_free(pkey);
+    EVP_PKEY_free(pKey);
 }
 
 // x509 读取证书 并验证
 void x509_read_certificate(const std::string &x509Path, const std::string &pkeyPath)
 {
     // 读取证书
-    FILE *fp = fopen(x509Path.c_str(), "rb");
-    X509 *x509 = PEM_read_X509(fp, NULL, NULL, NULL);
-    fclose(fp);
+    auto *in = BIO_new_file(x509Path.c_str(), "r");
+    if (in == nullptr) {
+        std::cerr << "read certificate failed" << '\n';
+        return;
+    }
+    X509 *x509 = PEM_read_bio_X509(in, nullptr, nullptr, nullptr);
+    BIO_free(in);
 
     // 读取私钥
-    fp = fopen(pkeyPath.c_str(), "rb");
-    EVP_PKEY *pkey = PEM_read_PrivateKey(fp, NULL, NULL, NULL);
-    fclose(fp);
+    in = BIO_new_file(pkeyPath.c_str(), "r");
+    if (in == nullptr) {
+        std::cerr << "read pkey failed" << '\n';
+        return;
+    }
+    EVP_PKEY *pKey = PEM_read_bio_PrivateKey(in, nullptr, nullptr, nullptr);
+    BIO_free(in);
 
     // 验证证书
-    if (X509_verify(x509, pkey) == 1) {
-        std::cout << "verify success" << std::endl;
+    if (X509_verify(x509, pKey) == 1) {
+        std::cout << "verify success" << '\n';
     } else {
-        std::cout << "verify failed" << std::endl;
+        std::cout << "verify failed" << '\n';
     }
 
     // 释放资源
     X509_free(x509);
-    EVP_PKEY_free(pkey);
+    EVP_PKEY_free(pKey);
 }
 
 auto main() -> int