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• COM Programming
• Scripting

• SimpleScript Part Seven: Binder Skeleton

  In Part Five I was discussing modules: there is a "global module" and any number of additional modules. Each module is associated with a named item, and the only module which is associated with more than one named item is the global module. This means Read More... Posted Tuesday, May 04, 2004 10:51 AM by Eric Lippert | 16 Comments Filed under: Scripting, COM Programming, SimpleScript

• invoke.cpp

  #include "headers.h" HRESULT InvokeDispatch(IDispatch * pdisp, DISPID dispid, REFIID riid, LCID lcid, WORD flags, DISPPARAMS * pDispParams, VARIANT * pvarResult, EXCEPINFO * pExcepInfo, UINT * pError) { AssertReadPtr(pdisp); HRESULT hr; // We must addref Read More... Posted Tuesday, May 04, 2004 10:04 AM by Eric Lippert | 0 Comments Filed under: SimpleScript

• invoke.h

  #ifndef INVOKE_H // { #define INVOKE_H extern HRESULT InvokeDispatch(IDispatch * pdisp, DISPID dispid, REFIID riid, LCID lcid, WORD flags, DISPPARAMS * pDispParams, VARIANT * pvarResult, EXCEPINFO * pExcepInfo, UINT * pError); extern BOOL IsValidDispatch(VARIANT Read More... Posted Tuesday, May 04, 2004 10:04 AM by Eric Lippert | 0 Comments Filed under: SimpleScript

• binder.cpp

  #include "headers.h" Binder::Binder() { DLLAddRef(); this->m_cref = 1; this->m_thread = GetCurrentThreadId(); } Binder::~Binder(void) { DLLRelease(); } HRESULT Binder::Create(Binder * * ppBinder) { AssertOutPtr(ppBinder); *ppBinder = new Binder(); Read More... Posted Tuesday, May 04, 2004 10:01 AM by Eric Lippert | 1 Comments Filed under: SimpleScript

• binder.h

  #ifndef BINDER_H // { #define BINDER_H class Binder : public IDispatch { protected: class Name { public: Name(); ~Name(); HRESULT SetValue(VARIANTARG * pvar); HRESULT GetValue(VARIANT * pvar); BOOL IsFunction(void); HRESULT ExecuteFunction(UINT cArgs, Read More... Posted Tuesday, May 04, 2004 10:01 AM by Eric Lippert | 0 Comments Filed under: SimpleScript

• SimpleScript Part Six: Threading Technicalities

  Refresher Course Before you read this, you might want to take a quick refresher on my original posting on the script engine threading model. That was a somewhat simplified (!) description of the actual script engine contract. Let me just sum up: free Read More... Posted Monday, April 26, 2004 8:56 PM by Eric Lippert | 20 Comments Filed under: Scripting, SimpleScript

• SimpleScript Part Five: Named Items and Modules

  Named Items "Named items" are what we call the "top level" objects of the host provided object model. WScript in WSH, window in Internet Explorer, Response in ASP, are all named items. A host tells an initialized script engine about named items via the Read More... Posted Thursday, April 22, 2004 5:29 PM by Eric Lippert | 16 Comments Filed under: Scripting, SimpleScript

• nameditemlist.h

  #ifndef NAMEDITEMLIST_H // { #define NAMEDITEMLIST_H class NamedItemList { private: class NamedItem { private: NamedItem(); public: ~NamedItem(); static HRESULT Create(const WCHAR * pszName, NamedItem * * ppNamedItem); NamedItem * m_pNext; BSTR m_bstrName; Read More... Posted Monday, April 19, 2004 6:25 PM by Eric Lippert | 0 Comments Filed under: SimpleScript

• nameditemlist.cpp

  #include "headers.h" NamedItemList::NamedItemList() { this->m_cBuckets = 0; this->m_Buckets = NULL; this->m_pMutex = NULL; } NamedItemList::~NamedItemList() { this->Clear(); if (NULL != this->m_Buckets) delete[] this->m_Buckets; if (NULL Read More... Posted Monday, April 19, 2004 6:24 PM by Eric Lippert | 2 Comments Filed under: SimpleScript

• mutex.cpp

  #include "headers.h" Mutex::Mutex() { m_fInitialized = FALSE; } HRESULT Mutex::Create(Mutex * * ppMutex) { AssertOutPtr(ppMutex); HRESULT hr; BOOL fSuccess; DWORD error; Mutex * pMutex = NULL; pMutex = new Mutex(); if (NULL == pMutex) { hr = E_OUTOFMEMORY; Read More... Posted Monday, April 19, 2004 6:22 PM by Eric Lippert | 0 Comments Filed under: SimpleScript

• mutex.h

  #ifndef MUTEX_H // { #define MUTEX_H class Mutex { private: CRITICAL_SECTION m_criticalsection; BOOL m_fInitialized; Mutex(); public: static HRESULT Create(Mutex * * ppMutex); ~Mutex(); void Enter(void); void Leave(void); }; #endif // MUTEX_H } Read More... Posted Monday, April 19, 2004 6:22 PM by Eric Lippert | 0 Comments Filed under: SimpleScript

• hash.h

  #ifndef HASH_H // { #define HASH_H extern ULONG ComputeHash(const WCHAR * psz); #endif // HASH_H } Read More... Posted Monday, April 19, 2004 6:20 PM by Eric Lippert | 1 Comments Filed under: SimpleScript

• hash.cpp

  #include "headers.h" ULONG ComputeHash(const WCHAR * psz) { AssertReadString(psz); ULONG hash = 0; while (*psz != '\0') { hash = 17 * hash + *psz; ++psz; } return hash; } Read More... Posted Monday, April 19, 2004 6:19 PM by Eric Lippert | 0 Comments Filed under: SimpleScript

• SimpleScript Part Four: Finite State Machines and Script Engines

  Last time I said that I'd discuss finite state machines (also sometimes called finite state automata, same thing.) The FSM is a fundamental idea in theoretical computer science because it models computing machinery in a very simple, abstract and general Read More... Posted Saturday, April 10, 2004 5:18 PM by Eric Lippert | 11 Comments Filed under: Scripting, COM Programming, SimpleScript

• SimpleScript Part Three: Engine Skeleton

  Before I get into today's topic I want to quickly address a minor defect that Raymond Chen (who apparently spends his holiday in Sweden doing remote code-reviews, oddly enough) was good enough to point out to me. It is legal to unload a DLL if the only Read More... Posted Monday, April 05, 2004 5:32 PM by Eric Lippert | 4 Comments Filed under: Scripting, COM Programming, SimpleScript