sippeangelo
68 lines
1.7 KiB
C++
68 lines
1.7 KiB
C++
#include <boost/filesystem.hpp>
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#include <boost/thread.hpp>
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#include <functional>
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#include <unordered_map>
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#include "Logging.h"
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#include "BoostPathHash.h"
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class FileWatcher
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{
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public:
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enum class FileEventFlags;
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typedef std::function<void(std::string, FileEventFlags)> FileEventCallback_t;
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FileWatcher();
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FileWatcher(std::string rootPath);
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~FileWatcher();
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std::string RootPath() const { return m_RootPath.string(); }
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void AddWatch(std::string path, FileEventCallback_t callback);
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void Start();
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bool IsRunning() const { return m_IsRunning; }
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void Stop();
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void Check();
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private:
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class Worker;
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boost::filesystem::path m_RootPath;
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boost::thread m_Thread;
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Worker* m_Worker = nullptr;
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bool m_IsRunning = false;
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};
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enum class FileWatcher::FileEventFlags
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{
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Nothing = 0,
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Created = 1 << 0,
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SizeChanged = 1 << 1,
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TimestampChanged = 1 << 2,
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Deleted = 1 << 3
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};
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inline FileWatcher::FileEventFlags operator|(FileWatcher::FileEventFlags a, FileWatcher::FileEventFlags b) { return static_cast<FileWatcher::FileEventFlags>(static_cast<int>(a) | static_cast<int>(b)); }
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inline bool operator&(FileWatcher::FileEventFlags a, FileWatcher::FileEventFlags b) { return static_cast<int>(a)& static_cast<int>(b); }
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class FileWatcher::Worker
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{
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public:
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void operator()();
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void AddWatch(std::string path, FileEventCallback_t callback);
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void Check();
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private:
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struct FileInfo
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{
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int Size;
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std::time_t Timestamp;
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};
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std::unordered_map<boost::filesystem::path, FileEventCallback_t> m_FileCallbacks;
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std::unordered_map<boost::filesystem::path, FileInfo> m_FileInfo;
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boost::mutex m_Mutex;
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FileInfo GetFileInfo(boost::filesystem::path path);
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FileEventFlags UpdateFileInfo(boost::filesystem::path path);
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};
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