129 lines
2.2 KiB
C++
129 lines
2.2 KiB
C++
#pragma once
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#ifndef TLOGGER_INCLUDED
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#define TLOGGER_INCLUDED
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#include <memory>
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//
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// TLogger
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//
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// usage example:
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//
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// TFilePath fp;
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// TLogger::info() << "Loading " << fp << " ...";
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// TLogger::error() << "File " << fp << "not found";
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//
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// N.B.
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// TLogger::debug() << ....
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// is automatically removed in the release
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//
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#include "tcommon.h"
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#undef DVAPI
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#undef DVVAR
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#ifdef TSYSTEM_EXPORTS
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#define DVAPI DV_EXPORT_API
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#define DVVAR DV_EXPORT_VAR
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#else
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#define DVAPI DV_IMPORT_API
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#define DVVAR DV_IMPORT_VAR
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#endif
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class TFilePath;
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class DVAPI TLogger
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{ // singleton
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class Imp;
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std::unique_ptr<Imp> m_imp;
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TLogger();
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public:
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~TLogger();
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static TLogger *instance();
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enum MessageType {
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Debug = 1,
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Info,
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Warning,
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Error
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};
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class DVAPI Message
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{
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MessageType m_type;
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std::string m_timestamp;
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std::string m_text;
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public:
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Message(MessageType type, std::string text);
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MessageType getType() const { return m_type; }
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std::string getTimestamp() const { return m_timestamp; }
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std::string getText() const { return m_text; }
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};
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class Listener
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{
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public:
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virtual void onLogChanged() = 0;
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virtual ~Listener() {}
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};
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void addMessage(const Message &msg);
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void clearMessages();
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int getMessageCount() const;
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Message getMessage(int index) const;
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void addListener(Listener *listener);
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void removeListener(Listener *listener);
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class DVAPI Stream
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{
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MessageType m_type;
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std::string m_text;
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public:
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Stream(MessageType type);
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~Stream();
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Stream &operator<<(std::string v);
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Stream &operator<<(int v);
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Stream &operator<<(double v);
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Stream &operator<<(const TFilePath &v);
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};
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class DVAPI NullStream
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{
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public:
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NullStream() {}
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~NullStream() {}
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NullStream &operator<<(std::string) { return *this; }
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NullStream &operator<<(int) { return *this; }
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NullStream &operator<<(double) { return *this; }
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NullStream &operator<<(const TFilePath &) { return *this; }
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};
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#ifdef NDEBUG
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static NullStream debug()
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{
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return NullStream();
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}
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#else
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static Stream debug()
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{
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return Stream(Debug);
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}
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#endif
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static Stream info()
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{
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return Stream(Info);
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}
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static Stream warning() { return Stream(Warning); }
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static Stream error() { return Stream(Error); }
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};
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#endif
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