source: trunk/FACT++/src/StateMachineDim.h@ 15658

Last change on this file since 15658 was 14565, checked in by tbretz, 12 years ago
Avoid copy of data when an event is handled... it is copied anyway.
File size: 2.8 KB
Line 
1#ifndef FACT_StateMachineDim
2#define FACT_StateMachineDim
3
4// ***************************************************************************
5/**
6 @class DimLog
7
8 @brief Ensures that the MessageDimTX is initialized before errors could be redirected to it
9
10**/
11// ***************************************************************************
12#include "MessageDim.h" // MessageDimTX
13
14class DimLog
15{
16 friend class StateMachineDim;
17
18 MessageDimTX fLog;
19 DimLog(std::ostream &out, const std::string &name) : fLog(name, out) { }
20};
21
22// ***************************************************************************
23/**
24 @class DimStart
25
26 @brief Ensures calling DimServer::start() in its constructor and DimServer::stop() in its destructor
27
28**/
29// ***************************************************************************
30#include "DimErrorRedirecter.h"
31
32class DimStart : public DimErrorRedirecter
33{
34protected:
35 DimStart(const std::string &name, MessageImp &imp) : DimErrorRedirecter(imp)
36 {
37 DimClient::setNoDataCopy();
38 if (!name.empty())
39 {
40 DimServer::start(name.c_str());
41 sleep(1);
42 }
43 }
44 ~DimStart()
45 {
46 DimServer::stop();
47 }
48};
49
50// ***************************************************************************
51/**
52 @class StateMachineDim
53
54 @brief Class for a state machine implementation within a DIM network
55
56**/
57// ***************************************************************************
58#include "StateMachine.h" // StateMachien
59
60class StateMachineDim : public DimCommandHandler, public DimInfoHandler, public DimLog, public DimStart, public StateMachineImp
61{
62private:
63 static const int fVersion; /// Version number
64
65 DimDescribedService fDescriptionStates; /// DimService propagating the state descriptions
66 DimDescribedService fSrvState; /// DimService offering fCurrentState
67// DimService fSrvVersion; /// DimService offering fVersion
68
69 void exitHandler(int code); /// Overwritten DimCommand::exitHandler.
70 void commandHandler(); /// Overwritten DimCommand::commandHandler
71 void infoHandler(); /// Overwritten DimInfo::infoHandler
72
73 EventImp *CreateEvent(const std::string &name, const std::string &fmt);
74 EventImp *CreateService(const std::string &name);
75
76protected:
77 /// This is an internal function to do some action in case of
78 /// a state change, like updating the corresponding service.
79 std::string SetCurrentState(int state, const char *txt="", const std::string &cmd="");
80
81 void Lock();
82 void UnLock();
83
84public:
85 StateMachineDim(std::ostream &out=std::cout, const std::string &name="DEFAULT");
86
87 /// Redirect our own logging to fLog
88 int Write(const Time &time, const std::string &txt, int qos=kMessage);
89
90 bool AddStateName(const int state, const std::string &name, const std::string &doc="");
91};
92
93#endif
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