1 using System;
2 using System.Collections;
3 using cmsx.machine;
4
5 namespace cmsx.kernel
6 {
7 public class Kernel
8 {
9 static Kernel() : instance(new Kernel())
10 {
11 }
12 public static nothrow Kernel& Instance()
13 {
14 return *instance;
15 }
16 private nothrow Kernel() : machine(GetMachine()), sessionTable(GetSessionTable()), processTable(GetProcessTable()), baseDebugger(), debugger(&baseDebugger), consoleDriver(null),
17 kernelEvent(OsCreateEvent()), kernelIdleEvent(OsCreateEvent()), booting(false), waiting(false)
18 {
19 SetIdle();
20 SetKernelShutdownFunc(StopKernelThreads);
21 RetrieveHostName();
22 }
23 public ~Kernel()
24 {
25 OsCloseEvent(kernelEvent);
26 OsCloseEvent(kernelIdleEvent);
27 }
28 public nothrow void SetUser(const string& user_)
29 {
30 user = user_;
31 }
32 public inline nothrow const string& User() const
33 {
34 return user;
35 }
36 public inline nothrow const string& Host() const
37 {
38 return host;
39 }
40 public void Init()
41 {
42 DefaultInitializeMemoryTable(machine, memoryTable);
43 memoryTable.addressSpaceNumber = kernelAddressSpaceNumber;
44 }
45 public inline nothrow Machine& GetMachine()
46 {
47 return machine;
48 }
49 public inline nothrow SessionTable& GetSessionTable()
50 {
51 return sessionTable;
52 }
53 public inline nothrow ProcessTable& GetProcessTable()
54 {
55 return processTable;
56 }
57 public inline nothrow MemoryTable& GetMemoryTable()
58 {
59 return memoryTable;
60 }
61 public nothrow void SetProgramFileName(const string& programFileName_)
62 {
63 programFileName = programFileName_;
64 }
65 public nothrow void SetProgramArguments(const List<string>& programArguments_)
66 {
67 programArguments = programArguments_;
68 }
69 public nothrow const string& GetProgramFileName() const
70 {
71 return programFileName;
72 }
73 public nothrow const List<string>& GetProgramArguments() const
74 {
75 return programArguments;
76 }
77 public nothrow void SetProgramPID(int pid)
78 {
79 programPID = pid;
80 }
81 public nothrow int GetProgramPID()
82 {
83 return programPID;
84 }
85 public inline nothrow Debugger* GetDebugger()
86 {
87 return debugger;
88 }
89 public inline nothrow void SetDebugger(Debugger* debugger_)
90 {
91 debugger = debugger_;
92 }
93 public inline nothrow bool HasUserDebugger() const
94 {
95 return debugger != &baseDebugger;
96 }
97 public nothrow void SetExecutable(cmsx.object.ExecutableFile* executable_)
98 {
99 executable.Reset(executable_);
100 }
101 public nothrow cmsx.object.ExecutableFile* Executable() const
102 {
103 return executable.Get();
104 }
105 public nothrow GlobalFileTable& FileTable()
106 {
107 return globalFileTable;
108 }
109 public nothrow void SetCurrentSession(Session* currentSession_)
110 {
111 currentSession = currentSession_;
112 }
113 public nothrow Session* CurrentSession() const
114 {
115 return currentSession;
116 }
117 public nothrow ConsoleDriver* GetConsoleDriver()
118 {
119 return consoleDriver;
120 }
121 public nothrow void SetConsoleDriver(ConsoleDriver* consoleDriver_)
122 {
123 consoleDriver = consoleDriver_;
124 }
125 public nothrow void SetBooting()
126 {
127 booting = true;
128 }
129 public nothrow void ResetBooting()
130 {
131 booting = false;
132 }
133 public inline nothrow bool Booting() const
134 {
135 return booting;
136 }
137 public void SetIdle()
138 {
139 OsSetEvent(kernelIdleEvent);
140 }
141 public void WaitIdle()
142 {
143 OsWaitEvent(kernelIdleEvent);
144 }
145 public void SetKernelEvent()
146 {
147 OsSetEvent(kernelEvent);
148 }
149 public void WaitKernelEvent()
150 {
151 OsWaitEvent(kernelEvent);
152 }
153 public nothrow bool Waiting() const
154 {
155 return waiting;
156 }
157 public nothrow void SetWaiting()
158 {
159 waiting = true;
160 }
161 public nothrow void ResetWaiting()
162 {
163 waiting = false;
164 }
165 private nothrow void RetrieveHostName()
166 {
167 int n = OsGetMaxComputerNameLength();
168 UniquePtr<char> computerNameBuf(cast<char*>(RtMemAlloc(n + 1)));
169 if (OsGetComputerName(computerNameBuf.Get(), n + 1))
170 {
171 host = computerNameBuf.Get();
172 }
173 else
174 {
175 host = "computer";
176 }
177 }
178 private static UniquePtr<Kernel> instance;
179 private Machine& machine;
180 private SessionTable& sessionTable;
181 private ProcessTable& processTable;
182 private MemoryTable memoryTable;
183 private string programFileName;
184 private List<string> programArguments;
185 private int programPID;
186 private Debugger baseDebugger;
187 private Debugger* debugger;
188 private UniquePtr<cmsx.object.ExecutableFile> executable;
189 private GlobalFileTable globalFileTable;
190 private Session* currentSession;
191 private ConsoleDriver* consoleDriver;
192 private void* kernelEvent;
193 private void* kernelIdleEvent;
194 private string user;
195 private string host;
196 private bool booting;
197 private bool waiting;
198 }
199
200 public void StopKernelThreads()
201 {
202 GetDiskDriver().Stop();
203 GetConsoleDriver().Stop();
204 GetKernel().SetKernelEvent();
205 }
206 }