forked from OSchip/llvm-project
85 lines
3.0 KiB
C++
85 lines
3.0 KiB
C++
//===-- MIUtilSingletonHelper.h ---------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Copyright: None.
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//--
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#pragma once
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namespace MI
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{
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// In house headers:
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#include "MIUtilString.h"
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#include "MICmnResources.h"
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//++ ============================================================================
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// Details: Short cut helper function to simplify repeated initialisation of
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// MI components (singletons) required by a client module.
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// Type: Template method.
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// Args: vErrorResrcId - (R) The string resource ID error message identifier to place in errMsg.
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// vwrbOk - (RW) On input True = Try to initalise MI driver module.
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// On output True = MI driver module initialise successfully.
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// vwrErrMsg - (W) MI driver module initialise error description on failure.
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// Return: MIstatus::success - Functional succeeded.
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// MIstatus::failure - Functional failed.
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// Authors: Aidan Dodds 17/03/2014.
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// Changes: None.
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//--
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template <typename T>
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bool
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ModuleInit(const MIint vErrorResrcId, bool &vwrbOk, CMIUtilString &vwrErrMsg)
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{
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if (vwrbOk && !T::Instance().Initialize())
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{
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vwrbOk = MIstatus::failure;
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vwrErrMsg = CMIUtilString::Format(MIRSRC(vErrorResrcId), T::Instance().GetErrorDescription().c_str());
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}
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return vwrbOk;
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}
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//++ ============================================================================
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// Details: Short cut helper function to simplify repeated shutodown of
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// MI components (singletons) required by a client module.
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// Type: Template method.
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// Args: vErrorResrcId - (R) The string resource ID error message identifier
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// to place in errMsg.
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// vwrbOk - (W) If not already false make false on module
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// shutdown failure.
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// vwrErrMsg - (RW) Append to existing error description string MI
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// driver module initialise error description on
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// failure.
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// Return: True - Module shutdown succeeded.
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// False - Module shutdown failed.
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// Authors: Aidan Dodds 17/03/2014.
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// Changes: None.
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//--
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template <typename T>
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bool
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ModuleShutdown(const MIint vErrorResrcId, bool &vwrbOk, CMIUtilString &vwrErrMsg)
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{
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bool bOk = MIstatus::success;
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if (!T::Instance().Shutdown())
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{
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const bool bMoreThanOneError(!vwrErrMsg.empty());
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bOk = MIstatus::failure;
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if (bMoreThanOneError)
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vwrErrMsg += ", ";
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vwrErrMsg += CMIUtilString::Format(MIRSRC(vErrorResrcId), T::Instance().GetErrorDescription().c_str());
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}
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vwrbOk = bOk ? vwrbOk : MIstatus::failure;
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return bOk;
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}
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} // namespace MI
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