60 lines
1.6 KiB
C++
60 lines
1.6 KiB
C++
#ifndef INCLUDE_MESSAGE_H
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#define INCLUDE_MESSAGE_H
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#include <stdlib.h>
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#include <QAtomicInt>
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#include "util/export.h"
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class MessageQueue;
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class QWaitCondition;
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class QMutex;
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class SDRANGELOVE_API Message {
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public:
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Message();
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virtual ~Message();
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virtual const char* getIdentifier() const;
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virtual bool matchIdentifier(const char* identifier) const;
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static bool match(Message* message);
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void* getDestination() const { return m_destination; }
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void submit(MessageQueue* queue, void* destination = NULL);
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int execute(MessageQueue* queue, void* destination = NULL);
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void completed(int result = 0);
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protected:
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// addressing
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static const char* m_identifier;
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void* m_destination;
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// stuff for synchronous messages
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bool m_synchronous;
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QWaitCondition* m_waitCondition;
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QMutex* m_mutex;
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QAtomicInt m_complete;
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int m_result;
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};
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#define MESSAGE_CLASS_DECLARATION(Name) \
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public: \
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const char* getIdentifier() const; \
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bool matchIdentifier(const char* identifier) const; \
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static bool match(Message* message); \
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static Name* cast(Message* message) { return match(message) ? (Name*)message : NULL; } \
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protected: \
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static const char* m_identifier; \
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private:
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#define MESSAGE_CLASS_DEFINITION(Name, BaseClass) \
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const char* Name::m_identifier = #Name; \
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const char* Name::getIdentifier() const { return m_identifier; } \
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bool Name::matchIdentifier(const char* identifier) const {\
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return (m_identifier == identifier) ? true : BaseClass::matchIdentifier(identifier); \
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} \
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bool Name::match(Message* message) { return message->matchIdentifier(m_identifier); }
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#endif // INCLUDE_MESSAGE_H
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