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Cpp-Examples

A library of practical C++ examples.

项目概述

This project collects practical examples in various C++ programming, covering many fields such as system programming, encryption algorithms, multi-threading, crash handling, design patterns, etc. Each example strives to be concise and clear, making it easy to learn and use in actual projects.

Module details

1.Breakpad

A simple wrapper for Google Breakpad for application crash reporting and stack tracing.

  • core file:
    • breakpad.hpp/breakpad.cc- Breakpad encapsulation class
    • example.cc- Usage examples
    • breakpad_unittest.cc- unit testing

2.Exchange Order

System byte order detection tool.

  • core file:
    • byteorder.cc- Use multiple methods to determine the byte order of the system (big endian/little endian)

3.Crashpad

A simple wrapper for Google Crashpad, a modern crash reporting system.

  • core file:
    • crashpad.hpp/crashpad.cc- Crashpad encapsulation class
    • example.cc- Usage examples
    • crashpad_server.py- Crash reporting server script

4.Memcpy

Memory copy function implementation and related tests.

  • core file:
    • mymemcpy.hpp/mymemcpy.cc- Custom memcpy function implementation
    • mymemcpy_unittest.cc- unit testing

5.MonitorDir

Cross-platform directory monitoring implementation, supporting Windows, macOS and Linux.

  • core file:
    • monitordir.hpp- Directory monitoring interface
    • monitordir_win.cc- Windows implementation (usingReadDirectoryChangesW）
    • monitordir_mac.cc- macOS implementation (usingFSEvents）
    • monitordir_linux_inotify.cc- Linux inotify implementation
    • monitordir_linux_fanotify.cc- Linux fanotify implementation
    • main.cc- Usage examples

Linux platform instructions:

  • fanotifyUse global mode (FAN_MARK_FILESYSTEM), can monitor events of the entire file system
  • needCAP_SYS_ADMINCapabilities (root permissions)
  • Recommended for ordinary usersinotifyaccomplish

6.MonitorDir_EFSW

Directory monitoring example based on efsw library.

  • core file:
    • main.cc- Directory monitoring example using efsw

7.OpenSSL

OpenSSL encryption algorithm usage example.

  • core file:
    • openssl_common.hpp/openssl_common.cc- Public utility functions
    • openssl_aes.cc- AES encryption and decryption example
    • openssl_base64.cc- Base64 encoding and decoding example
    • openssl_hash.cc- SHA256 hash calculation example
    • openssl_rsa.cc- RSA encryption and decryption example

8.Singleton

A modern thread-safe implementation of the Singleton pattern using C++11 features to ensure cross-platform compatibility.

  • core file:
    • singleton.hpp- Templated singleton base class, providing thread-safe instance access
    • singleton_unitest.cc- Complete unit testing to verify the uniqueness, thread safety and other characteristics of the singleton

9.Thread

Threads and thread pools implemented based on std::jthread (note: not supported by Apple Clang).

  • core file:
    • thread.hpp- Thread class encapsulation
    • threadpool.hpp-Thread pool implementation
    • queue.hpp- Thread safe queue
    • thread_unittest.cc- Thread unit testing
    • threadpool_unittest.cc- Thread pool unit testing
    • queue_unittest.cc- Queue unit testing

10.utils

General tool class.

  • core file:
    • scopeguard.hpp- RAII range guard
    • object.hpp- Object tool class
    • utils.hpp/utils.cc- Common tool functions

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