diff options
Diffstat (limited to 'src/pdll.h')
| -rw-r--r-- | src/pdll.h | 402 |
1 files changed, 0 insertions, 402 deletions
diff --git a/src/pdll.h b/src/pdll.h deleted file mode 100644 index 22d74557..00000000 --- a/src/pdll.h +++ /dev/null @@ -1,402 +0,0 @@ -////////////////////////////////////////////////////////////////////////////////////////////////////
-// Class: PDll //
-// Authors: MicHael Galkovsky //
-// Date: April 14, 1998 //
-// Company: Pervasive Software //
-// Purpose: Base class to wrap dynamic use of dll //
-//////////////////////////////////////////////////////////////////////////////////////////////
-
-#if !defined (_PDLL_H_)
-#define _PDLL_H_
-
-#include <windows.h>
-#include <winbase.h>
-
-#include <windows_error.h>
-#include <tchar.h>
-#include <sstream>
-
-
-#define FUNC_LOADED 3456
-
-//function declarations according to the number of parameters
-//define the type
-//declare a variable of that type
-//declare a member function by the same name as the dll function
-//check for dll handle
-//if this is the first call to the function then try to load it
-//if not then if the function was loaded successfully make a call to it
-//otherwise return a nullptr cast to the return parameter.
-
-#define DECLARE_FUNCTION0(CallType, retVal, FuncName) \
- typedef retVal (CallType* TYPE_##FuncName)(); \
- TYPE_##FuncName m_##FuncName; \
- short m_is##FuncName; \
- retVal FuncName() \
- { \
- if (m_dllHandle) \
- { \
- if (FUNC_LOADED != m_is##FuncName) \
- {\
- m_##FuncName = nullptr; \
- m_##FuncName = (TYPE_##FuncName)GetProcAddress(m_dllHandle, #FuncName); \
- m_is##FuncName = FUNC_LOADED;\
- }\
- if (nullptr != m_##FuncName) \
- return m_##FuncName(); \
- else \
- return (retVal)nullptr; \
- } \
- else \
- return (retVal)nullptr; \
- }
-
-#define DECLARE_FUNCTION1(CallType,retVal, FuncName, Param1) \
- typedef retVal (CallType* TYPE_##FuncName)(Param1); \
- TYPE_##FuncName m_##FuncName; \
- short m_is##FuncName;\
- retVal FuncName(Param1 p1) \
- { \
- if (m_dllHandle) \
- { \
- if (FUNC_LOADED != m_is##FuncName) \
- {\
- m_##FuncName = nullptr; \
- m_##FuncName = (TYPE_##FuncName)GetProcAddress(m_dllHandle, #FuncName); \
- m_is##FuncName = FUNC_LOADED;\
- }\
- if (nullptr != m_##FuncName) \
- return m_##FuncName(p1); \
- else \
- return (retVal)nullptr; \
- } \
- else \
- return (retVal)nullptr; \
- }
-
-#define DECLARE_FUNCTION2(CallType,retVal, FuncName, Param1, Param2) \
- typedef retVal (CallType* TYPE_##FuncName)(Param1, Param2); \
- TYPE_##FuncName m_##FuncName; \
- short m_is##FuncName;\
- retVal FuncName (Param1 p1, Param2 p2) \
- {\
- if (m_dllHandle)\
- {\
- if (FUNC_LOADED != m_is##FuncName) \
- {\
- m_##FuncName = nullptr; \
- m_##FuncName = (TYPE_##FuncName)GetProcAddress(m_dllHandle, #FuncName); \
- m_is##FuncName = FUNC_LOADED;\
- }\
- if (nullptr != m_##FuncName) \
- return m_##FuncName(p1, p2); \
- else \
- return (retVal)nullptr; \
- } \
- else\
- return (retVal)nullptr; \
- }
-
-#define DECLARE_FUNCTION3(CallType,retVal, FuncName, Param1, Param2, Param3) \
- typedef retVal (CallType* TYPE_##FuncName)(Param1, Param2, Param3); \
- TYPE_##FuncName m_##FuncName; \
- short m_is##FuncName;\
- retVal FuncName (Param1 p1, Param2 p2, Param3 p3) \
- {\
- if (m_dllHandle)\
- {\
- if (FUNC_LOADED != m_is##FuncName) \
- {\
- m_##FuncName = nullptr; \
- m_##FuncName = (TYPE_##FuncName)GetProcAddress(m_dllHandle, #FuncName); \
- m_is##FuncName = FUNC_LOADED; \
- }\
- if (nullptr != m_##FuncName) \
- return m_##FuncName(p1, p2, p3);\
- else \
- return (retVal)nullptr; \
- } \
- else\
- return (retVal)nullptr; \
- }
-
-#define DECLARE_FUNCTION4(CallType,retVal, FuncName, Param1, Param2, Param3, Param4) \
- typedef retVal (CallType* TYPE_##FuncName)(Param1, Param2, Param3, Param4); \
- TYPE_##FuncName m_##FuncName; \
- short m_is##FuncName;\
- retVal FuncName (Param1 p1, Param2 p2, Param3 p3, Param4 p4) \
- {\
- if (m_dllHandle)\
- {\
- if (FUNC_LOADED != m_is##FuncName) \
- {\
- m_##FuncName = nullptr; \
- m_##FuncName = (TYPE_##FuncName)GetProcAddress(m_dllHandle, #FuncName); \
- m_is##FuncName = FUNC_LOADED;\
- }\
- if (nullptr != m_##FuncName) \
- return m_##FuncName(p1, p2, p3, p4);\
- else \
- return (retVal)nullptr; \
- } \
- else\
- return (retVal)nullptr; \
- }
-
-#define DECLARE_FUNCTION5(CallType,retVal, FuncName, Param1, Param2, Param3, Param4, Param5) \
- typedef retVal (CallType* TYPE_##FuncName)(Param1, Param2, Param3, Param4, Param5); \
- TYPE_##FuncName m_##FuncName; \
- short m_is##FuncName; \
- retVal FuncName (Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5) \
- {\
- if (m_dllHandle)\
- {\
- if (FUNC_LOADED != m_is##FuncName) \
- {\
- m_##FuncName = nullptr; \
- m_##FuncName = (TYPE_##FuncName)GetProcAddress(m_dllHandle, #FuncName); \
- m_is##FuncName = FUNC_LOADED;\
- }\
- if (nullptr != m_##FuncName) \
- return m_##FuncName(p1, p2, p3, p4, p5);\
- else \
- return (retVal)nullptr; \
- } \
- else\
- return (retVal)nullptr; \
- }
-
-#define DECLARE_FUNCTION6(CallType,retVal, FuncName, Param1, Param2, Param3, Param4, Param5, Param6) \
- typedef retVal (CallType* TYPE_##FuncName)(Param1, Param2, Param3, Param4, Param5, Param6); \
- TYPE_##FuncName m_##FuncName; \
- short m_is##FuncName;\
- retVal FuncName (Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6) \
- {\
- if (m_dllHandle)\
- {\
- if (FUNC_LOADED != m_is##FuncName) \
- {\
- m_##FuncName = nullptr; \
- m_##FuncName = (TYPE_##FuncName)GetProcAddress(m_dllHandle, #FuncName); \
- m_is##FuncName = FUNC_LOADED;\
- }\
- if (nullptr != m_##FuncName) \
- return m_##FuncName(p1, p2, p3, p4, p5, p6);\
- else \
- return (retVal)nullptr; \
- } \
- else\
- return (retVal)nullptr; \
- }
-
-#define DECLARE_FUNCTION7(CallType,retVal, FuncName, Param1, Param2, Param3, Param4, Param5, Param6, Param7) \
- typedef retVal (CallType* TYPE_##FuncName)(Param1, Param2, Param3, Param4, Param5, Param6, Param7); \
- TYPE_##FuncName m_##FuncName; \
- short m_is##FuncName;\
- retVal FuncName (Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7) \
- {\
- if (m_dllHandle)\
- {\
- if (FUNC_LOADED != m_is##FuncName) \
- {\
- m_##FuncName = nullptr; \
- m_##FuncName = (TYPE_##FuncName)GetProcAddress(m_dllHandle, #FuncName); \
- m_is##FuncName = FUNC_LOADED;\
- }\
- if (nullptr != m_##FuncName) \
- return m_##FuncName(p1, p2, p3, p4, p5, p6, p7);\
- else \
- return (retVal)nullptr; \
- } \
- else\
- return (retVal)nullptr; \
- }
-
-#define DECLARE_FUNCTION8(CallType,retVal, FuncName, Param1, Param2, Param3, Param4, Param5, Param6, Param7, Param8) \
- typedef retVal (CallType* TYPE_##FuncName)(Param1, Param2, Param3, Param4, Param5, Param6, Param7, Param8); \
- TYPE_##FuncName m_##FuncName; \
- short m_is##FuncName;\
- retVal FuncName (Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7, Param8 p8) \
- {\
- if (m_dllHandle)\
- {\
- if (FUNC_LOADED != m_is##FuncName) \
- {\
- m_##FuncName = nullptr; \
- m_##FuncName = (TYPE_##FuncName)GetProcAddress(m_dllHandle, #FuncName); \
- m_is##FuncName = FUNC_LOADED;\
- }\
- if (nullptr != m_##FuncName) \
- return m_##FuncName(p1, p2, p3, p4, p5, p6, p7, p8);\
- else \
- return (retVal)nullptr; \
- }\
- else\
- return (retVal)nullptr; \
- }
-
-#define DECLARE_FUNCTION9(CallType,retVal, FuncName, Param1, Param2, Param3, Param4, Param5, Param6, Param7, Param8, Param9) \
- typedef retVal (CallType* TYPE_##FuncName)(Param1, Param2, Param3, Param4, Param5, Param6, Param7, Param8, Param9); \
- TYPE_##FuncName m_##FuncName; \
- short m_is##FuncName; \
- retVal FuncName (Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7, Param8 p8, Param9 p9) \
- {\
- if (m_dllHandle)\
- {\
- if (FUNC_NAME != m_is##FuncName) \
- {\
- m_##FuncName = nullptr; \
- m_##FuncName = (TYPE_##FuncName)GetProcAddress(m_dllHandle, #FuncName); \
- m_is##FuncName = FUNC_LOADED;\
- }\
- if (nullptr != m_##FuncName) \
- return m_##FuncName(p1, p2, p3, p4, p5, p6, p7, p8, p9);\
- else \
- return (retVal)nullptr; \
- }\
- else\
- return (retVal)nullptr; \
- }
-
-#define DECLARE_FUNCTION10(CallType,retVal, FuncName, Param1, Param2, Param3, Param4, Param5, Param6, Param7, Param8, Param9, Param10) \
- typedef retVal (CallType* TYPE_##FuncName)FuncName(Param1, Param2, Param3, Param4, Param5, Param6, Param7, Param8, Param9, Param10); \
- TYPE_##FuncName m_##FuncName; \
- short m_is##FuncName;\
- retVal FuncName (Param1 p1, Param2 p2, Param3 p3, Param4 p4, Param5 p5, Param6 p6, Param7 p7, Param8 p8, Param9 p9, Param10 p10) \
- {\
- if (m_dllHandle)\
- {\
- if (FUNC_LOADED != m_is##FuncName) \
- {\
- m_##FuncName = nullptr; \
- m_##FuncName = (TYPE_##FuncName)GetProcAddress(m_dllHandle, #FuncName); \
- m_is##FuncName = FUNC_LOADED;\
- }\
- if (nullptr != m_##FuncName) \
- return m_##FuncName(p1, p2, p3, p4, p5, p6, p7, p8, p9, p10);\
- else \
- return (retVal)nullptr; \
- }\
- else \
- return (retVal)nullptr;\
- }
-
-//declare constructors and LoadFunctions
-#define DECLARE_CLASS(ClassName) \
- public: \
- ClassName (LPCTSTR name){LoadDll(name);} \
- ClassName () {PDLL();}
-
-class PDLL
-{
-protected:
- HINSTANCE m_dllHandle;
-private:
- LPTSTR m_dllName;
- int m_refCount;
-
-public:
-
- PDLL()
- {
- m_dllHandle = nullptr;
- m_dllName = nullptr;
- m_refCount = 0;
- }
-
- //A nullptr here means the name has already been set
- void LoadDll(LPCTSTR name, bool showMsg = true)
- {
- if (name)
- SetDllName(name);
-
- //try to load
- m_dllHandle = LoadLibrary(m_dllName);
-
- if (m_dllHandle == nullptr && showMsg)
- {
- std::ostringstream message;
- message << "failed to load dll: " << ::GetLastError();
- throw std::runtime_error(message.str().c_str());
- }
- }
-
- bool SetDllName(LPCTSTR newName)
- {
- bool retVal = false;
-
- //we allow name resets only if the current DLL handle is invalid
- //once they've hooked into a DLL, the name cannot be changed
- if (!m_dllHandle)
- {
- if (m_dllName)
- {
- delete []m_dllName;
- m_dllName = nullptr;
- }
-
- //They may be setting this null (e.g., uninitialize)
- if (newName)
- {
- m_dllName = new TCHAR[_tcslen(newName) + 1];
- _tcscpy(m_dllName, newName);
- }
- retVal = true;
- }
- return retVal;
- }
-
- virtual bool Initialize(short showMsg = 1)
- {
-
- bool retVal = false;
-
- //Add one to our internal reference counter
- m_refCount++;
-
- if (m_refCount == 1 && m_dllName) //if this is first time, load the DLL
- {
- //we are assuming the name is already set
- LoadDll(nullptr, showMsg);
- retVal = (m_dllHandle != nullptr);
- }
- return retVal;
- }
-
- virtual void Uninitialize(void)
- {
- //If we're already completely unintialized, early exit
- if (!m_refCount)
- return;
- //if this is the last time this instance has been unitialized,
- //then do a full uninitialization
- m_refCount--;
-
- if (m_refCount < 1)
- {
- if (m_dllHandle)
- {
- FreeLibrary(m_dllHandle);
- m_dllHandle = nullptr;
- }
-
- SetDllName(nullptr); //clear out the name & free memory
- }
- }
-
- virtual ~PDLL()
- {
- //force this to be a true uninitialize
- m_refCount = 1;
- Uninitialize();
-
- //free name
- if (m_dllName)
- {
- delete [] m_dllName;
- m_dllName = nullptr;
- }
- }
-
-};
-#endif
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