|
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 the License "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: |
|
15 * |
|
16 */ |
|
17 // D_FTRACE.CPP |
|
18 // |
|
19 // |
|
20 // |
|
21 #include "plat_priv.h" |
|
22 #include <kernel/kernel.h> |
|
23 |
|
24 #include "f32trace.h" |
|
25 |
|
26 #define __DLOGICAL_CHANNEL_BASE__ |
|
27 |
|
28 #ifdef __DLOGICAL_CHANNEL_BASE__ |
|
29 DMutex* TheTraceMutex = NULL; |
|
30 _LIT(KLitTraceMutexName, "FTRACE_MUTEX"); |
|
31 #else |
|
32 TDynamicDfcQue* gDfcQ; |
|
33 const TInt KDFTraceThreadPriority = 27; |
|
34 _LIT(KDFTraceThread,"DFTraceThread"); |
|
35 #endif |
|
36 |
|
37 const TInt KMajorVersionNumber=1; |
|
38 const TInt KMinorVersionNumber=0; |
|
39 const TInt KBuildVersionNumber=0; |
|
40 |
|
41 |
|
42 class DLddFactoryFTrace : public DLogicalDevice |
|
43 { |
|
44 public: |
|
45 DLddFactoryFTrace(); |
|
46 virtual ~DLddFactoryFTrace(); |
|
47 virtual TInt Install(); |
|
48 virtual void GetCaps(TDes8 &aDes) const; |
|
49 virtual TInt Create(DLogicalChannelBase*& aChannel); //overriding pure virtual |
|
50 }; |
|
51 |
|
52 #ifdef __DLOGICAL_CHANNEL_BASE__ |
|
53 class DLddFTrace : public DLogicalChannelBase |
|
54 #else |
|
55 class DLddFTrace : public DLogicalChannel |
|
56 #endif |
|
57 { |
|
58 public: |
|
59 DLddFTrace(); |
|
60 ~DLddFTrace(); |
|
61 protected: |
|
62 virtual TInt DoCreate(TInt aUnit, const TDesC8* anInfo, const TVersion& aVer); |
|
63 |
|
64 #ifdef __DLOGICAL_CHANNEL_BASE__ |
|
65 virtual TInt Request(TInt aReqNo, TAny* a1, TAny* a2); |
|
66 #else |
|
67 virtual void HandleMsg(class TMessageBase *); |
|
68 #endif |
|
69 |
|
70 private: |
|
71 void DoCancel(TInt aReqNo); |
|
72 TInt DoRequest(TInt aReqNo, TRequestStatus* aStatus, TAny* a1, TAny* a2); |
|
73 TInt DoControl(TInt aFunction, TAny* a1, TAny* a2); |
|
74 |
|
75 private: |
|
76 DThread* iClient; |
|
77 }; |
|
78 |
|
79 DECLARE_STANDARD_LDD() |
|
80 { |
|
81 #ifdef __DLOGICAL_CHANNEL_BASE__ |
|
82 TInt r = Kern::MutexCreate(TheTraceMutex, KLitTraceMutexName, KMutexOrdNone); |
|
83 if (r != KErrNone) |
|
84 return NULL; |
|
85 #endif |
|
86 |
|
87 return new DLddFactoryFTrace; |
|
88 } |
|
89 |
|
90 DLddFactoryFTrace::DLddFactoryFTrace() |
|
91 { |
|
92 |
|
93 iParseMask=KDeviceAllowUnit; // Pass stack number as unit |
|
94 iUnitsMask=0xffffffff; |
|
95 iVersion=TVersion(KMajorVersionNumber,KMinorVersionNumber,KBuildVersionNumber); |
|
96 } |
|
97 |
|
98 TInt DLddFactoryFTrace::Create(DLogicalChannelBase*& aChannel) |
|
99 { |
|
100 aChannel=new DLddFTrace; |
|
101 return aChannel ? KErrNone : KErrNoMemory; |
|
102 } |
|
103 |
|
104 TInt DLddFactoryFTrace::Install() |
|
105 { |
|
106 #ifndef __DLOGICAL_CHANNEL_BASE__ |
|
107 // Allocate a kernel thread to run the DFC |
|
108 TInt r = Kern::DynamicDfcQCreate(gDfcQ, KDFTraceThreadPriority, KDFTraceThread); |
|
109 if (r != KErrNone) |
|
110 return r; |
|
111 #endif |
|
112 |
|
113 TPtrC name=_L("FTrace"); |
|
114 return(SetName(&name)); |
|
115 } |
|
116 |
|
117 void DLddFactoryFTrace::GetCaps(TDes8& /*aDes*/) const |
|
118 { |
|
119 } |
|
120 |
|
121 DLddFactoryFTrace::~DLddFactoryFTrace() |
|
122 { |
|
123 #ifndef __DLOGICAL_CHANNEL_BASE__ |
|
124 if (gDfcQ) |
|
125 gDfcQ->Destroy(); |
|
126 #endif |
|
127 } |
|
128 |
|
129 DLddFTrace::DLddFTrace() |
|
130 { |
|
131 iClient=&Kern::CurrentThread(); |
|
132 ((DObject*)iClient)->Open(); // can't fail since thread is running |
|
133 } |
|
134 |
|
135 DLddFTrace::~DLddFTrace() |
|
136 { |
|
137 Kern::SafeClose((DObject*&)iClient,NULL); |
|
138 } |
|
139 |
|
140 TInt DLddFTrace::DoCreate(TInt /*aUnit*/, const TDesC8* /*aInfo*/, const TVersion& aVer) |
|
141 { |
|
142 |
|
143 if (!Kern::QueryVersionSupported(TVersion(KMajorVersionNumber,KMinorVersionNumber,KBuildVersionNumber),aVer)) |
|
144 return(KErrNotSupported); |
|
145 |
|
146 #ifndef __DLOGICAL_CHANNEL_BASE__ |
|
147 SetDfcQ(gDfcQ); |
|
148 iMsgQ.Receive(); |
|
149 #endif |
|
150 |
|
151 return(KErrNone); |
|
152 } |
|
153 |
|
154 void DLddFTrace::DoCancel(TInt /*aReqNo*/) |
|
155 { |
|
156 } |
|
157 |
|
158 #ifdef __DLOGICAL_CHANNEL_BASE__ |
|
159 TInt DLddFTrace::Request(TInt aReqNo, TAny* a1, TAny* a2) |
|
160 { |
|
161 NKern::ThreadEnterCS(); |
|
162 Kern::MutexWait(*TheTraceMutex); |
|
163 TInt r = DoControl(aReqNo, a1, a2); |
|
164 Kern::MutexSignal(*TheTraceMutex); |
|
165 NKern::ThreadLeaveCS(); |
|
166 |
|
167 return r; |
|
168 } |
|
169 |
|
170 #else |
|
171 |
|
172 void DLddFTrace::HandleMsg(TMessageBase* aMsg) |
|
173 { |
|
174 TThreadMessage& m=*(TThreadMessage*)aMsg; |
|
175 TInt id=m.iValue; |
|
176 |
|
177 if (id==(TInt)ECloseMsg) |
|
178 { |
|
179 m.Complete(KErrNone, EFalse); |
|
180 return; |
|
181 } |
|
182 else if (id==KMaxTInt) |
|
183 { |
|
184 // DoCancel |
|
185 m.Complete(KErrNone,ETrue); |
|
186 return; |
|
187 } |
|
188 |
|
189 if (id<0) |
|
190 { |
|
191 // DoRequest |
|
192 TRequestStatus* pS=(TRequestStatus*)m.Ptr0(); |
|
193 |
|
194 // WDP FIXME change this to use the Kern::RequestComplete() API which doesn't take a thread pointer |
|
195 // when this becomes available |
|
196 Kern::RequestComplete(iClient, pS, KErrNotSupported); |
|
197 m.Complete(KErrNotSupported, ETrue); |
|
198 } |
|
199 else |
|
200 { |
|
201 // DoControl |
|
202 TInt r=DoControl(id, m.Ptr0(), m.Ptr1()); |
|
203 m.Complete(r,ETrue); |
|
204 } |
|
205 } |
|
206 #endif // __DLOGICAL_CHANNEL_BASE__ |
|
207 |
|
208 const TUint KTraceBufferSize = 4096; |
|
209 TUint8 gTraceBuffer[KTraceBufferSize]; |
|
210 |
|
211 |
|
212 |
|
213 #define MIN(a,b) ((a) < (b) ? (a) : (b)) |
|
214 |
|
215 TInt DLddFTrace::DoControl(TInt aFunction, TAny* a1, TAny* a2) |
|
216 // |
|
217 // Mostly requests (but some kernel server async ones) |
|
218 // |
|
219 { |
|
220 TInt r=KErrNotSupported; |
|
221 switch (aFunction) |
|
222 { |
|
223 case RFTrace::ETraceMultiple: |
|
224 { |
|
225 typedef struct { |
|
226 TClassification iCategory; |
|
227 TUint8 iPadding1[sizeof(TUint) - sizeof(TClassification)]; |
|
228 |
|
229 TFormatId iFormatId; |
|
230 TUint8 iPadding2[sizeof(TUint) - sizeof(TFormatId)]; |
|
231 |
|
232 TUint32 iUid; |
|
233 TInt iDescriptorCount; |
|
234 } TraceArgs; |
|
235 |
|
236 TraceArgs args={0}; |
|
237 |
|
238 #ifdef __DLOGICAL_CHANNEL_BASE__ |
|
239 XTRAP(r, XT_DEFAULT, kumemget32(&args, a1, sizeof(args))); |
|
240 if (r != KErrNone) |
|
241 return r; |
|
242 #else |
|
243 r = Kern::ThreadRawRead(iClient, a1, &args, sizeof(args)); |
|
244 if (r != KErrNone) |
|
245 return r; |
|
246 #endif |
|
247 |
|
248 |
|
249 // current descriptor - MUST be either a TPtr8 or a TBuf8<4> |
|
250 TUint32 desc[2] = {0, 0}; |
|
251 TUint32& desLength = desc[0]; |
|
252 |
|
253 TUint offset = 0; |
|
254 |
|
255 *((TUint*) (gTraceBuffer+offset)) = args.iFormatId; |
|
256 offset+= sizeof(TUint); |
|
257 |
|
258 TDesC8* des = (TDesC8*) ((TUint8*) a2); |
|
259 const TInt desSize = sizeof(TPtrC8); |
|
260 for (TInt n=0; n< args.iDescriptorCount; n++, des = (TDesC8*) (((TUint8*) des) + desSize) ) |
|
261 { |
|
262 |
|
263 #ifdef __DLOGICAL_CHANNEL_BASE__ |
|
264 XTRAP(r, XT_DEFAULT, kumemget32(desc, des, sizeof(desc))); |
|
265 #else |
|
266 r = Kern::ThreadRawRead(iClient, des, desc, sizeof(desc)); |
|
267 if (r != KErrNone) |
|
268 return r; |
|
269 #endif |
|
270 TUint32 desType = desLength >> KShiftDesType; |
|
271 desLength &= (TUint) (KMaskDesLength); |
|
272 if (desType == EPtrC) |
|
273 { |
|
274 *((TUint*) (gTraceBuffer+offset)) = desLength; |
|
275 desLength = (desLength+3)&~3; |
|
276 offset+= sizeof(TUint); |
|
277 } |
|
278 else if (desType == EBufC) |
|
279 { |
|
280 *((TUint*) (gTraceBuffer+offset)) = desc[1]; |
|
281 offset+= sizeof(TUint); |
|
282 if (desLength > 4) |
|
283 return KErrArgument; |
|
284 desLength = 0; |
|
285 continue; |
|
286 } |
|
287 else |
|
288 return KErrArgument; |
|
289 |
|
290 TUint len = MIN(KTraceBufferSize - offset, desLength); |
|
291 #ifdef __DLOGICAL_CHANNEL_BASE__ |
|
292 XTRAP(r, XT_DEFAULT, kumemget(gTraceBuffer+offset, (const TUint8*) desc[1], len)); |
|
293 #else |
|
294 TPtr8 dest(gTraceBuffer+offset, len, len); |
|
295 r = Kern::ThreadDesRead(iClient, des, dest, 0, KChunkShiftBy0); |
|
296 if (r != KErrNone) |
|
297 return r; |
|
298 #endif |
|
299 offset+= len; |
|
300 |
|
301 } |
|
302 |
|
303 BTrace::OutFilteredBig |
|
304 (BTRACE_HEADER_C(8,args.iCategory, 0), args.iUid, gTraceBuffer, offset); |
|
305 |
|
306 r=KErrNone; |
|
307 break; |
|
308 } |
|
309 } |
|
310 return(r); |
|
311 } |
|
312 |