23
|
1 |
/*
|
|
2 |
* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
|
|
3 |
* All rights reserved.
|
|
4 |
* This component and the accompanying materials are made available
|
|
5 |
* under the terms of "Eclipse Public License v1.0"
|
|
6 |
* which accompanies this distribution, and is available
|
|
7 |
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
|
|
8 |
*
|
|
9 |
* Initial Contributors:
|
|
10 |
* Nokia Corporation - initial contribution.
|
|
11 |
*
|
|
12 |
* Contributors:
|
|
13 |
*
|
|
14 |
* Description: Monitoring application for servers restarting & IAD
|
|
15 |
*
|
|
16 |
*/
|
|
17 |
|
|
18 |
|
|
19 |
#include "servermonitor.h"
|
|
20 |
|
|
21 |
_LIT(KStar , "*");
|
|
22 |
_LIT(KExtension, ".exe");
|
|
23 |
_LIT(KSemaphore, "Semaphore");
|
|
24 |
|
|
25 |
// ======== MEMBER FUNCTIONS ========
|
|
26 |
// ---------------------------------------------------------------------------
|
|
27 |
// Constructor.
|
|
28 |
// ---------------------------------------------------------------------------
|
|
29 |
//
|
|
30 |
CServerMonitor* CServerMonitor::NewL( TDesC& aServerName , TUid aServerUid )
|
|
31 |
{
|
|
32 |
CServerMonitor* self = new ( ELeave ) CServerMonitor();
|
|
33 |
CleanupStack::PushL( self );
|
|
34 |
self->ConstructL( aServerName , aServerUid );
|
|
35 |
CleanupStack::Pop( self );
|
|
36 |
|
|
37 |
return self;
|
|
38 |
}
|
|
39 |
|
|
40 |
// ---------------------------------------------------------------------------
|
|
41 |
// C++ constructor.
|
|
42 |
// ---------------------------------------------------------------------------
|
|
43 |
//
|
|
44 |
CServerMonitor::CServerMonitor() :
|
|
45 |
CActive( CActive::EPriorityStandard ), iState(EIdle)
|
|
46 |
{
|
|
47 |
// Add to active scheduler.
|
|
48 |
CActiveScheduler::Add( this );
|
|
49 |
}
|
|
50 |
|
|
51 |
// ---------------------------------------------------------------------------
|
|
52 |
// 2nd phase constructor.
|
|
53 |
// ---------------------------------------------------------------------------
|
|
54 |
//
|
|
55 |
void CServerMonitor::ConstructL( TDesC& aServerName , TUid aServerUid )
|
|
56 |
{
|
|
57 |
|
|
58 |
TFullName name;
|
|
59 |
//Update the member variables
|
|
60 |
iServerName = HBufC::NewL( aServerName.Length() );
|
|
61 |
TPtr servernameptr = iServerName->Des();
|
|
62 |
servernameptr.Copy( aServerName );
|
|
63 |
|
|
64 |
iServerUid.iUid = aServerUid.iUid;
|
|
65 |
// find Harvester Server
|
|
66 |
// Append * to the server name for the findprocess
|
|
67 |
HBufC* servername = HBufC::NewL( iServerName->Length() + 1 );
|
|
68 |
TPtr nameptr = servername->Des();
|
|
69 |
nameptr.Copy( aServerName );
|
|
70 |
nameptr.Append( KStar );
|
|
71 |
|
|
72 |
TFindProcess findProcess( *servername );
|
|
73 |
if ( findProcess.Next(name) == KErrNone )
|
|
74 |
{
|
|
75 |
User::LeaveIfError( iProcess.Open(name) );
|
|
76 |
iState = ERunning;
|
|
77 |
// logon to get termination signal
|
|
78 |
iProcess.Logon(iStatus);
|
|
79 |
SetActive();
|
|
80 |
}
|
|
81 |
else
|
|
82 |
{
|
|
83 |
// start new Harvester
|
|
84 |
StartL();
|
|
85 |
}
|
|
86 |
|
|
87 |
delete servername;
|
|
88 |
|
|
89 |
}
|
|
90 |
|
|
91 |
void CServerMonitor::StartL()
|
|
92 |
{
|
|
93 |
|
|
94 |
// Double check that harvester server is not already running
|
|
95 |
TFullName name;
|
|
96 |
TInt res( KErrNone );
|
|
97 |
// Append * to the server name for the findprocess
|
|
98 |
HBufC* servername = HBufC::NewL( iServerName->Length() + 1 );
|
|
99 |
TPtr servernameptr = servername->Des();
|
|
100 |
servernameptr.Copy( *iServerName );
|
|
101 |
servernameptr.Append( KStar );
|
|
102 |
// find really Harvester Server, using TFindServer to avoid logon a dead process
|
|
103 |
TFindServer findServer( *servername );
|
|
104 |
|
|
105 |
if ( findServer.Next(name) == KErrNone )
|
|
106 |
{
|
|
107 |
TFindProcess findProcess( *servername );
|
|
108 |
if ( findProcess.Next(name) == KErrNone )
|
|
109 |
{
|
|
110 |
iProcess.Close();
|
|
111 |
res = iProcess.Open(name);
|
|
112 |
if ( res != KErrNone )
|
|
113 |
{
|
|
114 |
delete servername;
|
|
115 |
return;
|
|
116 |
}
|
|
117 |
iState = EWaitingRendezvous;
|
|
118 |
SetActive();
|
|
119 |
delete servername;
|
|
120 |
return;
|
|
121 |
}
|
|
122 |
}
|
|
123 |
|
|
124 |
// close the panic process
|
|
125 |
TFindProcess findProcess( *servername );
|
|
126 |
if ( findProcess.Next(name) == KErrNone )
|
|
127 |
{
|
|
128 |
iProcess.Close();
|
|
129 |
}
|
|
130 |
delete servername;
|
|
131 |
servername = NULL;
|
|
132 |
// Create the server process
|
|
133 |
StartServerProcessL();
|
|
134 |
}
|
|
135 |
|
|
136 |
// ---------------------------------------------------------------------------
|
|
137 |
// Destructor
|
|
138 |
// ---------------------------------------------------------------------------
|
|
139 |
//
|
|
140 |
CServerMonitor::~CServerMonitor()
|
|
141 |
{
|
|
142 |
delete iServerName;
|
|
143 |
Cancel();
|
|
144 |
}
|
|
145 |
|
|
146 |
// ---------------------------------------------------------------------------
|
|
147 |
// Active object's request handling.
|
|
148 |
// ---------------------------------------------------------------------------
|
|
149 |
//
|
|
150 |
void CServerMonitor::RunL()
|
|
151 |
{
|
|
152 |
switch (iState)
|
|
153 |
{
|
|
154 |
case EIdle:
|
|
155 |
{
|
|
156 |
break;
|
|
157 |
}
|
|
158 |
|
|
159 |
case EWaitingRendezvous:
|
|
160 |
{
|
|
161 |
iState = ERunning;
|
|
162 |
// logon to get termination signal
|
|
163 |
TRAPD(err,iProcess.Logon(iStatus));
|
|
164 |
if ( err == KErrNone )
|
|
165 |
SetActive();
|
|
166 |
break;
|
|
167 |
}
|
|
168 |
|
|
169 |
case ERunning:
|
|
170 |
{
|
|
171 |
// server died unexpectedly, start it
|
|
172 |
StartL();
|
|
173 |
break;
|
|
174 |
}
|
|
175 |
default:
|
|
176 |
break;
|
|
177 |
|
|
178 |
}
|
|
179 |
|
|
180 |
}
|
|
181 |
|
|
182 |
// ---------------------------------------------------------------------------
|
|
183 |
// Active object's request error handling.
|
|
184 |
// ---------------------------------------------------------------------------
|
|
185 |
//
|
|
186 |
TInt CServerMonitor::RunError( TInt /*aError*/ )
|
|
187 |
{
|
|
188 |
return KErrNone;
|
|
189 |
}
|
|
190 |
|
|
191 |
// ---------------------------------------------------------------------------
|
|
192 |
// Cancel the request.
|
|
193 |
// ---------------------------------------------------------------------------
|
|
194 |
//
|
|
195 |
void CServerMonitor::DoCancel()
|
|
196 |
{
|
|
197 |
iProcess.LogonCancel(iStatus);
|
|
198 |
iProcess.Close();
|
|
199 |
}
|
|
200 |
|
|
201 |
// ---------------------------------------------------------------------------
|
|
202 |
// StartServerProcess
|
|
203 |
// ---------------------------------------------------------------------------
|
|
204 |
//
|
|
205 |
void CServerMonitor::StartServerProcessL()
|
|
206 |
{
|
|
207 |
RSemaphore semaphore;
|
|
208 |
HBufC* semaphorename = HBufC::NewL( iServerName->Length() + 10 );
|
|
209 |
TPtr semptr = semaphorename->Des();
|
|
210 |
semptr.Copy( *iServerName );
|
|
211 |
semptr.Append( KSemaphore );
|
|
212 |
|
|
213 |
TInt result = semaphore.CreateGlobal( *semaphorename, 0 );
|
|
214 |
if (result != KErrNone)
|
|
215 |
{
|
|
216 |
delete semaphorename;
|
|
217 |
return ;
|
|
218 |
}
|
|
219 |
|
|
220 |
TRAP(result, CreateServerProcess());
|
|
221 |
if (result != KErrNone)
|
|
222 |
{
|
|
223 |
return ;
|
|
224 |
}
|
|
225 |
|
|
226 |
semaphore.Wait();
|
|
227 |
semaphore.Close();
|
|
228 |
delete semaphorename;
|
|
229 |
return ;
|
|
230 |
}
|
|
231 |
|
|
232 |
// ---------------------------------------------------------------------------
|
|
233 |
// CreateServerProcess
|
|
234 |
// ---------------------------------------------------------------------------
|
|
235 |
//
|
|
236 |
void CServerMonitor::CreateServerProcess()
|
|
237 |
{
|
|
238 |
TInt result;
|
|
239 |
|
|
240 |
const TUidType serverUid( KNullUid, KNullUid, iServerUid);
|
|
241 |
|
|
242 |
HBufC* servernameext = HBufC::NewL( iServerName->Length() + 4 );
|
|
243 |
TPtr ptr = servernameext->Des();
|
|
244 |
ptr.Copy( *iServerName );
|
|
245 |
ptr.Append( KExtension );
|
|
246 |
//result = iProcess.Create( *iServerName, KNullDesC, serverUid);
|
|
247 |
result = iProcess.Create( *iServerName, KNullDesC);
|
|
248 |
if (result != KErrNone)
|
|
249 |
{
|
|
250 |
delete servernameext;
|
|
251 |
return ;
|
|
252 |
}
|
|
253 |
|
|
254 |
|
|
255 |
// start process and wait until it is constructed
|
|
256 |
iProcess.Rendezvous(iStatus);
|
|
257 |
|
|
258 |
if( iStatus != KRequestPending )
|
|
259 |
{
|
|
260 |
iProcess.Kill( 0 ); // abort startup
|
|
261 |
}
|
|
262 |
else
|
|
263 |
{
|
|
264 |
iProcess.Resume(); // logon OK - start the server
|
|
265 |
iState = EWaitingRendezvous;
|
|
266 |
SetActive();
|
|
267 |
|
|
268 |
}
|
|
269 |
delete servernameext;
|
|
270 |
return ;
|
|
271 |
}
|
|
272 |
|
|
273 |
// ---------------------------------------------------------------------------
|
|
274 |
// CreateServerProcess
|
|
275 |
// ---------------------------------------------------------------------------
|
|
276 |
//
|
|
277 |
void CServerMonitor::ShutdownServer()
|
|
278 |
{
|
|
279 |
HBufC* servername = HBufC16::NewLC( iServerName->Length() + 5 );
|
|
280 |
TPtr servernameptr = servername->Des();
|
|
281 |
servernameptr.Copy( *iServerName );
|
|
282 |
servernameptr.Append( KExtension );
|
|
283 |
servernameptr.Append( KStar );
|
|
284 |
TFindProcess processFinder( *servername );
|
|
285 |
TFullName result;
|
|
286 |
RProcess processHandle;
|
|
287 |
while ( processFinder.Next(result) == KErrNone)
|
|
288 |
{
|
|
289 |
User::LeaveIfError(processHandle.Open ( processFinder, EOwnerThread));
|
|
290 |
processHandle.Kill(KErrNone);
|
|
291 |
processHandle.Close();
|
|
292 |
}
|
|
293 |
CleanupStack::PopAndDestroy( servername );
|
|
294 |
}
|