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VBOX: Add error trap for COM errors raised by the MSVC compiler stubs. Dump the contents of the error to stderr and halt the wrapper.

This commit is contained in:
Rom Walton 2015-04-20 16:11:07 -04:00
parent 8e89888d54
commit d9ecce24d4
1 changed files with 25 additions and 0 deletions
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25
samples/vboxwrapper/vbox_mscom_impl.cpp
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@ -100,6 +100,27 @@ int virtualbox_check_error(HRESULT rc, char* szFunction, char* szFile, int iLine
return rc;
}
void __stdcall virtualbox_com_raise_error(HRESULT rc, IErrorInfo* perrinfo) {
HRESULT hr;
CComPtr<IErrorInfo> pErrorInfo;
CComBSTR strSource;
CComBSTR strDescription;
pErrorInfo.Attach(perrinfo);
vboxlog_msg("COM Error 0x%x", rc);
hr = pErrorInfo->GetSource(&strSource);
if (SUCCEEDED(hr) && strSource) {
vboxlog_msg("Error Source : %S", strSource);
}
hr = pErrorInfo->GetDescription(&strDescription);
if (SUCCEEDED(hr) && strDescription) {
vboxlog_msg("Error Description: %S", strDescription);
}
DebugBreak();
}
// We want to recurisively walk the snapshot tree so that we can get the most recent children first.
// We also want to skip whatever the most current snapshot is.
@ -166,6 +187,10 @@ void TraverseMediums(std::vector<CComPtr<IMedium>>& mediums, IMedium* pMedium) {
VBOX_VM::VBOX_VM() {
// Initialize COM Exception Trap
//
_set_com_error_handler(virtualbox_com_raise_error);
m_pPrivate = new VBOX_PRIV();
}