mirror of
https://github.com/stefanocasazza/ULib.git
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122 lines
2.6 KiB
C++
122 lines
2.6 KiB
C++
// ============================================================================
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//
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// = LIBRARY
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// ULib - c++ library
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//
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// = FILENAME
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// plugin.h
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//
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// = AUTHOR
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// Stefano Casazza
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//
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// ============================================================================
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#ifndef ULIB_PLUGIN_H
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#define ULIB_PLUGIN_H 1
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#include <ulib/dynamic/dynamic.h>
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// macros that help when defining the specific function required to support creation of plugin object
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#define U_PLUGIN_TO_PARAM(mod) (mod).getName(),(mod).getNameLen()
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#define U_PLUGIN_TO_TRACE(mod) (mod).getNameLen(),(mod).getName()
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#define U_CREAT_FUNC(name, obj) extern "C" { void* u_creat_##name(); U_EXPORT void* u_creat_##name() { return new obj(); } }
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class UHTTP;
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template <class T> class UPlugIn;
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template <> class U_EXPORT UPlugIn<void*> : public UDynamic {
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public:
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// COSTRUTTORI
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UPlugIn()
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{
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U_TRACE_NO_PARAM(0, "UPlugIn<void*>::UPlugIn()")
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obj = 0;
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next = 0;
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name = 0;
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name_len = 0;
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}
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~UPlugIn();
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// SERVICES
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const char* getName() const { return name; }
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uint32_t getNameLen() const { return name_len; }
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static bool empty()
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{
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U_TRACE_NO_PARAM(0, "UPlugIn<void*>::empty()")
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if (first == 0) U_RETURN(true);
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U_RETURN(false);
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}
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static UPlugIn<void*>* getObjWrapper(void* obj) __pure;
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// DEBUG
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#if defined(U_STDCPP_ENABLE) && defined(DEBUG)
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const char* dump(bool reset) const;
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#endif
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protected:
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void* obj;
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const char* name;
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UPlugIn<void*>* next;
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uint32_t name_len;
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static UPlugIn<void*>* first;
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static void clear();
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static void* create(const char* name, uint32_t name_len);
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private:
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UPlugIn<void*>(const UPlugIn<void*>&) : UDynamic() {}
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UPlugIn<void*>& operator=(const UPlugIn<void*>&) { return *this; }
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friend class UHTTP;
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friend class UServer_Base;
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};
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template <class T> class U_EXPORT UPlugIn<T*> : public UPlugIn<void*> {
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public:
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// COSTRUTTORI
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UPlugIn()
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{
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U_TRACE_REGISTER_OBJECT(0, UPlugIn<T*>, "", 0)
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}
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~UPlugIn()
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{
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U_TRACE_UNREGISTER_OBJECT(0, UPlugIn<T*>)
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}
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// PlugIn operations
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static T* create(const char* name, uint32_t name_len) { return (T*) UPlugIn<void*>::create(name, name_len); }
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#if defined(U_STDCPP_ENABLE) && defined(DEBUG)
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const char* dump(bool reset) const { return UPlugIn<void*>::dump(reset); }
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#endif
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private:
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#ifdef U_COMPILER_DELETE_MEMBERS
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UPlugIn<T*>(const UPlugIn<T*>&) = delete;
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UPlugIn<T*>& operator=(const UPlugIn<T*>&) = delete;
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#else
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UPlugIn<T*>(const UPlugIn<T*>&) {}
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UPlugIn<T*>& operator=(const UPlugIn<T*>&) { return *this; }
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#endif
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};
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#endif
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