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//===-- MIUtilSingletonHelper.h ---------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#pragma once
// In house headers:
#include "MICmnResources.h"
#include "MIUtilString.h"
namespace MI {
//++
//============================================================================
// Details: Short cut helper function to simplify repeated initialisation of
// MI components (singletons) required by a client module.
// Type: Template method.
// Args: vErrorResrcId - (R) The string resource ID error message
// identifier to place in errMsg.
// vwrbOk - (RW) On input True = Try to initialize MI driver
// module.
// On output True = MI driver module initialise
// successfully.
// vwrErrMsg - (W) MI driver module initialise error description
// on failure.
// Return: MIstatus::success - Functional succeeded.
// MIstatus::failure - Functional failed.
//--
template <typename T>
bool ModuleInit(const MIint vErrorResrcId, bool &vwrbOk,
CMIUtilString &vwrErrMsg) {
if (vwrbOk && !T::Instance().Initialize()) {
vwrbOk = MIstatus::failure;
vwrErrMsg = CMIUtilString::Format(
MIRSRC(vErrorResrcId), T::Instance().GetErrorDescription().c_str());
}
return vwrbOk;
}
//++
//============================================================================
// Details: Short cut helper function to simplify repeated shutdown of
// MI components (singletons) required by a client module.
// Type: Template method.
// Args: vErrorResrcId - (R) The string resource ID error message
// identifier
// to place in errMsg.
// vwrbOk - (W) If not already false make false on module
// shutdown failure.
// vwrErrMsg - (RW) Append to existing error description string
// MI
// driver module initialise error description on
// failure.
// Return: True - Module shutdown succeeded.
// False - Module shutdown failed.
//--
template <typename T>
bool ModuleShutdown(const MIint vErrorResrcId, bool &vwrbOk,
CMIUtilString &vwrErrMsg) {
bool bOk = MIstatus::success;
if (!T::Instance().Shutdown()) {
const bool bMoreThanOneError(!vwrErrMsg.empty());
bOk = MIstatus::failure;
if (bMoreThanOneError)
vwrErrMsg += ", ";
vwrErrMsg += CMIUtilString::Format(
MIRSRC(vErrorResrcId), T::Instance().GetErrorDescription().c_str());
}
vwrbOk = bOk ? vwrbOk : MIstatus::failure;
return bOk;
}
} // namespace MI
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