forked from OSchip/llvm-project
105 lines
3.5 KiB
C++
105 lines
3.5 KiB
C++
//===-- MICmdInvoker.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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#pragma once
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// Third party headers
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#include <map>
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// In-house headers:
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#include "MICmdData.h"
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#include "MICmdMgrSetCmdDeleteCallback.h"
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#include "MICmnBase.h"
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#include "MIUtilSingletonBase.h"
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// Declarations:
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class CMICmdBase;
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class CMICmnStreamStdout;
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//++
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//============================================================================
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// Details: MI Command Invoker. The Invoker works on the command pattern design.
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// There two main jobs; action command Execute() function, followed by
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// the command's Acknowledge() function. When a command has finished
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// its
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// execute function it returns to the invoker. The invoker then calls
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// the
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// command's Acknowledge() function to do more work, form and give
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// back a MI result. In the meantime the Command Monitor is monitoring
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// the each command doing their Execute() function work so they do not
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// exceed a time limit which if it exceeds informs the command(s) to
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// stop work.
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// The work by the Invoker is carried out in the main thread.
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// The Invoker takes ownership of any commands created which means it
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// is the only object to delete them when a command is finished
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// working.
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// A singleton class.
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//--
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class CMICmdInvoker : public CMICmnBase,
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public CMICmdMgrSetCmdDeleteCallback::ICallback,
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public MI::ISingleton<CMICmdInvoker> {
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friend class MI::ISingleton<CMICmdInvoker>;
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// Class:
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public:
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//++
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// Description: Invoker's interface for commands to implement.
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//--
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class ICmd {
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public:
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virtual bool Acknowledge() = 0;
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virtual bool Execute() = 0;
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virtual bool ParseArgs() = 0;
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virtual void SetCmdData(const SMICmdData &vCmdData) = 0;
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virtual const SMICmdData &GetCmdData() const = 0;
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virtual const CMIUtilString &GetErrorDescription() const = 0;
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virtual void CmdFinishedTellInvoker() const = 0;
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virtual const CMIUtilString &GetMIResultRecord() const = 0;
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virtual const CMIUtilString &GetMIResultRecordExtra() const = 0;
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virtual bool HasMIResultRecordExtra() const = 0;
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/* dtor */ virtual ~ICmd() {}
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};
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// Methods:
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public:
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bool Initialize() override;
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bool Shutdown() override;
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bool CmdExecute(CMICmdBase &vCmd);
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bool CmdExecuteFinished(CMICmdBase &vCmd);
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// Typedefs:
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private:
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typedef std::map<MIuint, CMICmdBase *> MapCmdIdToCmd_t;
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typedef std::pair<MIuint, CMICmdBase *> MapPairCmdIdToCmd_t;
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// Methods:
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private:
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/* ctor */ CMICmdInvoker();
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/* ctor */ CMICmdInvoker(const CMICmdInvoker &);
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void operator=(const CMICmdInvoker &);
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void CmdDeleteAll();
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bool CmdDelete(const MIuint vCmdId, const bool vbYesDeleteCmd = false);
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bool CmdAdd(const CMICmdBase &vCmd);
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bool CmdStdout(const SMICmdData &vCmdData) const;
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void CmdCauseAppExit(const CMICmdBase &vCmd) const;
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// Overridden:
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private:
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// From CMICmnBase
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/* dtor */ ~CMICmdInvoker() override;
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// From CMICmdMgrSetCmdDeleteCallback::ICallback
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void Delete(SMICmdData &vCmd) override;
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// Attributes:
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private:
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MapCmdIdToCmd_t m_mapCmdIdToCmd;
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CMICmnStreamStdout &m_rStreamOut;
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};
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