64 lines
1013 B
C++
64 lines
1013 B
C++
// Copyright (c) 1997-1999 Microsoft Corporation
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//
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// Self-freeing DLL class
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//
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// 10-9-98 sburns
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#include "headers.hxx"
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SafeDLL::SafeDLL(const String& dllName)
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:
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module(0),
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name(dllName)
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{
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LOG_CTOR(SafeDLL);
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ASSERT(!name.empty());
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}
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SafeDLL::~SafeDLL()
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{
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LOG_DTOR(SafeDLL);
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if (module)
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{
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HRESULT unused = Win::FreeLibrary(module);
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ASSERT(SUCCEEDED(unused));
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}
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}
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HRESULT
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SafeDLL::GetProcAddress(const String& functionName, FARPROC& result) const
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{
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LOG_FUNCTION2(SafeDLL::GetProcAddress, functionName);
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ASSERT(!functionName.empty());
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result = 0;
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HRESULT hr = S_OK;
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do
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{
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// load the dll if not already loaded.
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if (!module)
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{
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hr = Win::LoadLibrary(name, module);
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}
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BREAK_ON_FAILED_HRESULT(hr);
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hr = Win::GetProcAddress(module, functionName, result);
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BREAK_ON_FAILED_HRESULT(hr);
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}
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while (0);
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return hr;
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}
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