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f23a6e1a | 1 | // $Id$ |
2 | ||
c515df4c | 3 | //************************************************************************** |
4 | //* This file is property of and copyright by the * | |
5 | //* ALICE Experiment at CERN, All rights reserved. * | |
6 | //* * | |
7 | //* Primary Authors: Matthias Richter <Matthias.Richter@ift.uib.no> * | |
8 | //* Timm Steinbeck <timm@kip.uni-heidelberg.de> * | |
9 | //* for The ALICE HLT Project. * | |
10 | //* * | |
11 | //* Permission to use, copy, modify and distribute this software and its * | |
12 | //* documentation strictly for non-commercial purposes is hereby granted * | |
13 | //* without fee, provided that the above copyright notice appears in all * | |
14 | //* copies and that both the copyright notice and this permission notice * | |
15 | //* appear in the supporting documentation. The authors make no claims * | |
16 | //* about the suitability of this software for any purpose. It is * | |
17 | //* provided "as is" without express or implied warranty. * | |
18 | //************************************************************************** | |
f23a6e1a | 19 | |
28cd9358 | 20 | /// @file AliHLTComponentHandler.cxx |
21 | /// @author Matthias Richter, Timm Steinbeck | |
22 | /// @date | |
23 | /// @brief Implementation of HLT component handler. | |
24 | /// | |
f23a6e1a | 25 | |
53feaef5 | 26 | //#undef HAVE_DLFCN_H |
27 | #ifdef HAVE_DLFCN_H | |
f23a6e1a | 28 | #include <dlfcn.h> |
53feaef5 | 29 | #else |
30 | //#include <Riostream.h> | |
31 | #include <TSystem.h> | |
32 | #endif //HAVE_DLFCN_H | |
f23a6e1a | 33 | #include "AliHLTComponentHandler.h" |
34 | #include "AliHLTComponent.h" | |
35 | #include "AliHLTDataTypes.h" | |
f3506ea2 | 36 | #include "AliHLTModuleAgent.h" |
5df0cbb9 | 37 | #include "TString.h" |
f23a6e1a | 38 | |
b22e91eb | 39 | /** ROOT macro for the implementation of ROOT specific class methods */ |
f23a6e1a | 40 | ClassImp(AliHLTComponentHandler) |
41 | ||
42 | AliHLTComponentHandler::AliHLTComponentHandler() | |
85869391 | 43 | : |
44 | fComponentList(), | |
45 | fScheduleList(), | |
46 | fLibraryList(), | |
9ce4bf4a | 47 | fEnvironment(), |
620fcee6 | 48 | fOwnedComponents(), |
45c0a780 | 49 | fLibraryMode(kDynamic), |
50 | fRunDesc(kAliHLTVoidRunDesc), | |
51 | fRunType(NULL) | |
f23a6e1a | 52 | { |
70ed7d01 | 53 | // see header file for class documentation |
54 | // or | |
55 | // refer to README to build package | |
56 | // or | |
57 | // visit http://web.ift.uib.no/~kjeks/doc/alice-hlt | |
a3c9b745 | 58 | memset(&fEnvironment, 0, sizeof(AliHLTAnalysisEnvironment)); |
59 | fEnvironment.fStructSize=sizeof(AliHLTAnalysisEnvironment); | |
9ce4bf4a | 60 | AddStandardComponents(); |
f23a6e1a | 61 | } |
62 | ||
a3c9b745 | 63 | AliHLTComponentHandler::AliHLTComponentHandler(AliHLTAnalysisEnvironment* pEnv) |
3cde846d | 64 | : |
298ef463 | 65 | AliHLTLogging(), |
3cde846d | 66 | fComponentList(), |
67 | fScheduleList(), | |
68 | fLibraryList(), | |
69 | fEnvironment(), | |
620fcee6 | 70 | fOwnedComponents(), |
45c0a780 | 71 | fLibraryMode(kDynamic), |
72 | fRunDesc(kAliHLTVoidRunDesc), | |
73 | fRunType(NULL) | |
3cde846d | 74 | { |
c515df4c | 75 | // constructor with environment |
3cde846d | 76 | if (pEnv) { |
a3c9b745 | 77 | memcpy(&fEnvironment, pEnv, sizeof(AliHLTAnalysisEnvironment)); |
fa274626 | 78 | if (pEnv->fLoggingFunc) { |
79 | // the AliHLTLogging::Init method also sets the stream output | |
80 | // and notification handler to AliLog. This should only be done | |
81 | // if the logging environment contains a logging function | |
82 | // for redirection | |
83 | AliHLTLogging::Init(pEnv->fLoggingFunc); | |
84 | } | |
f3506ea2 | 85 | } else { |
a3c9b745 | 86 | memset(&fEnvironment, 0, sizeof(AliHLTAnalysisEnvironment)); |
87 | fEnvironment.fStructSize=sizeof(AliHLTAnalysisEnvironment); | |
f3506ea2 | 88 | } |
89 | //#ifndef __DEBUG | |
90 | //SetLocalLoggingLevel(kHLTLogError); | |
91 | //#else | |
92 | //SetLocalLoggingLevel(kHLTLogInfo); | |
93 | //#endif | |
94 | ||
3cde846d | 95 | AddStandardComponents(); |
96 | } | |
97 | ||
f23a6e1a | 98 | AliHLTComponentHandler::~AliHLTComponentHandler() |
99 | { | |
c515df4c | 100 | // destructor |
55baa954 | 101 | DeactivateAgents(); |
cbd84228 | 102 | DeleteOwnedComponents(); |
a742f6f8 | 103 | UnloadLibraries(); |
45c0a780 | 104 | if (fRunType) delete [] fRunType; |
105 | fRunType=NULL; | |
f23a6e1a | 106 | } |
107 | ||
b005ef92 | 108 | AliHLTComponentHandler* AliHLTComponentHandler::fgpInstance=NULL; |
109 | int AliHLTComponentHandler::fgNofInstances=0; | |
110 | ||
111 | AliHLTComponentHandler* AliHLTComponentHandler::CreateHandler() | |
112 | { | |
c515df4c | 113 | // create global instance of handler |
b005ef92 | 114 | if (!fgpInstance) fgpInstance=new AliHLTComponentHandler; |
115 | fgNofInstances++; | |
116 | return fgpInstance; | |
117 | } | |
118 | ||
119 | int AliHLTComponentHandler::Destroy() | |
120 | { | |
153e7db5 | 121 | // destroy/delete 'this', checks if 'this' pointer is the global instance, |
122 | // reduce the instance counter and delete if there are no instances left | |
123 | // IMPORTANT: the object must be considered self-destroyed after the function | |
b005ef92 | 124 | int nofInstances=0; |
125 | if (fgpInstance==this) { | |
153e7db5 | 126 | nofInstances=--fgNofInstances; |
b005ef92 | 127 | } |
153e7db5 | 128 | if (fgNofInstances==0) fgpInstance=NULL; |
b005ef92 | 129 | if (nofInstances==0) delete this; |
130 | return nofInstances; | |
131 | } | |
132 | ||
fa760045 | 133 | int AliHLTComponentHandler::AnnounceVersion() |
134 | { | |
c515df4c | 135 | // printout for version |
fa760045 | 136 | int iResult=0; |
137 | #ifdef PACKAGE_STRING | |
179be78e | 138 | extern void HLTbaseCompileInfo( const char*& date, const char*& time); |
139 | const char* date=""; | |
140 | const char* time=""; | |
fa760045 | 141 | HLTbaseCompileInfo(date, time); |
142 | if (!date) date="unknown"; | |
143 | if (!time) time="unknown"; | |
b2065764 | 144 | HLTImportant("%s build on %s (%s)", PACKAGE_STRING, date, time); |
fa760045 | 145 | #else |
b2065764 | 146 | HLTImportant("ALICE High Level Trigger build on %s (%s) (embedded AliRoot build)", __DATE__, __TIME__); |
fa760045 | 147 | #endif |
148 | return iResult; | |
149 | } | |
150 | ||
f3506ea2 | 151 | Int_t AliHLTComponentHandler::AddComponent(AliHLTComponent* pSample) |
152 | { | |
c515df4c | 153 | // add and register a component, handler becomes owner |
f3506ea2 | 154 | Int_t iResult=0; |
cbd84228 | 155 | if (pSample==NULL) return -EINVAL; |
f3506ea2 | 156 | if ((iResult=RegisterComponent(pSample))>=0) { |
cbd84228 | 157 | //HLTDebug("sample %s (%p) managed by handler", pSample->GetComponentID(), pSample); |
f3506ea2 | 158 | fOwnedComponents.push_back(pSample); |
159 | } | |
160 | return iResult; | |
161 | } | |
162 | ||
f23a6e1a | 163 | Int_t AliHLTComponentHandler::RegisterComponent(AliHLTComponent* pSample) |
164 | { | |
c515df4c | 165 | // register a component, handler creates clone of sample |
f23a6e1a | 166 | Int_t iResult=0; |
167 | if (pSample) { | |
168 | if (FindComponent(pSample->GetComponentID())==NULL) { | |
169 | iResult=InsertComponent(pSample); | |
170 | if (iResult>=0) { | |
85465857 | 171 | HLTInfo("component %s registered", pSample->GetComponentID()); |
f23a6e1a | 172 | } |
173 | } else { | |
174 | // component already registered | |
fa760045 | 175 | HLTDebug("component %s already registered, skipped", pSample->GetComponentID()); |
f23a6e1a | 176 | iResult=-EEXIST; |
177 | } | |
178 | } else { | |
179 | iResult=-EINVAL; | |
180 | } | |
181 | return iResult; | |
182 | } | |
183 | ||
184 | int AliHLTComponentHandler::DeregisterComponent( const char* componentID ) | |
185 | { | |
c515df4c | 186 | // deregister component |
5df0cbb9 | 187 | |
53feaef5 | 188 | int iResult=0; |
189 | if (componentID) { | |
5df0cbb9 | 190 | HLTWarning("not yet implemented, please notify the developers if you need this function"); |
53feaef5 | 191 | } else { |
192 | iResult=-EINVAL; | |
193 | } | |
194 | return iResult; | |
f23a6e1a | 195 | } |
196 | ||
197 | Int_t AliHLTComponentHandler::ScheduleRegister(AliHLTComponent* pSample) | |
198 | { | |
c515df4c | 199 | // schedule registration |
f23a6e1a | 200 | Int_t iResult=0; |
201 | if (pSample) { | |
202 | fScheduleList.push_back(pSample); | |
203 | } else { | |
204 | iResult=-EINVAL; | |
205 | } | |
206 | return iResult; | |
207 | } | |
208 | ||
9a0ef890 | 209 | int AliHLTComponentHandler::CreateComponent(const char* componentID, void* pEnvParam, int argc, const char** argv, AliHLTComponent*& component) |
210 | { | |
c515df4c | 211 | // create a component |
9a0ef890 | 212 | int iResult=CreateComponent(componentID, component); |
213 | if (iResult>=0 && component) { | |
214 | HLTDebug("component \"%s\" created (%p)", componentID, component); | |
215 | if ((iResult=component->Init(&fEnvironment, pEnvParam, argc, argv))!=0) { | |
216 | HLTError("Initialization of component \"%s\" failed with error %d", componentID, iResult); | |
217 | delete component; | |
218 | component=NULL; | |
219 | } | |
220 | } | |
221 | return iResult; | |
222 | } | |
223 | ||
224 | int AliHLTComponentHandler::CreateComponent(const char* componentID, AliHLTComponent*& component ) | |
f23a6e1a | 225 | { |
c515df4c | 226 | // create a component |
f23a6e1a | 227 | int iResult=0; |
228 | if (componentID) { | |
229 | AliHLTComponent* pSample=FindComponent(componentID); | |
230 | if (pSample!=NULL) { | |
231 | component=pSample->Spawn(); | |
232 | if (component) { | |
85465857 | 233 | HLTDebug("component \"%s\" created (%p)", componentID, component); |
5ec8e281 | 234 | } else { |
85465857 | 235 | HLTError("can not spawn component \"%s\"", componentID); |
5ec8e281 | 236 | iResult=-ENOENT; |
f23a6e1a | 237 | } |
5ec8e281 | 238 | } else { |
85465857 | 239 | HLTWarning("can not find component \"%s\"", componentID); |
5ec8e281 | 240 | iResult=-ENOENT; |
f23a6e1a | 241 | } |
242 | } else { | |
243 | iResult=-EINVAL; | |
244 | } | |
245 | return iResult; | |
246 | } | |
247 | ||
db16520a | 248 | Int_t AliHLTComponentHandler::FindComponentIndex(const char* componentID) |
f23a6e1a | 249 | { |
c515df4c | 250 | // find component by ID in the list and return index |
f23a6e1a | 251 | Int_t iResult=0; |
252 | if (componentID) { | |
7bcd6cad | 253 | AliHLTComponentPList::iterator element=fComponentList.begin(); |
f23a6e1a | 254 | while (element!=fComponentList.end() && iResult>=0) { |
255 | if (strcmp(componentID, (*element)->GetComponentID())==0) { | |
256 | break; | |
257 | } | |
258 | element++; | |
259 | iResult++; | |
260 | } | |
261 | if (element==fComponentList.end()) iResult=-ENOENT; | |
262 | } else { | |
263 | iResult=-EINVAL; | |
264 | } | |
265 | return iResult; | |
266 | } | |
267 | ||
db16520a | 268 | AliHLTComponent* AliHLTComponentHandler::FindComponent(const char* componentID) |
f23a6e1a | 269 | { |
c515df4c | 270 | // find component sample by ID |
f23a6e1a | 271 | AliHLTComponent* pSample=NULL; |
272 | Int_t index=FindComponentIndex(componentID); | |
273 | if (index>=0) { | |
274 | pSample=(AliHLTComponent*)fComponentList.at(index); | |
275 | } | |
276 | return pSample; | |
277 | } | |
278 | ||
279 | Int_t AliHLTComponentHandler::InsertComponent(AliHLTComponent* pSample) | |
280 | { | |
c515df4c | 281 | // insert a component sample in the list |
f23a6e1a | 282 | Int_t iResult=0; |
283 | if (pSample!=NULL) { | |
284 | fComponentList.push_back(pSample); | |
285 | } else { | |
286 | iResult=-EINVAL; | |
287 | } | |
288 | return iResult; | |
289 | } | |
290 | ||
70ed7d01 | 291 | void AliHLTComponentHandler::List() |
292 | { | |
c515df4c | 293 | // print list content |
294 | // TODO: implement Print() | |
7bcd6cad | 295 | AliHLTComponentPList::iterator element=fComponentList.begin(); |
f23a6e1a | 296 | int index=0; |
297 | while (element!=fComponentList.end()) { | |
85465857 | 298 | HLTInfo("%d. %s", index++, (*element++)->GetComponentID()); |
f23a6e1a | 299 | } |
300 | } | |
301 | ||
f3506ea2 | 302 | int AliHLTComponentHandler::HasOutputData( const char* componentID) |
303 | { | |
c515df4c | 304 | // check if a component has output data |
f3506ea2 | 305 | int iResult=0; |
306 | AliHLTComponent* pSample=FindComponent(componentID); | |
307 | if (pSample) { | |
308 | AliHLTComponent::TComponentType ct=AliHLTComponent::kUnknown; | |
309 | ct=pSample->GetComponentType(); | |
310 | iResult=(ct==AliHLTComponent::kSource || ct==AliHLTComponent::kProcessor); | |
311 | } else { | |
312 | iResult=-ENOENT; | |
313 | } | |
314 | return iResult; | |
315 | } | |
316 | ||
a3c9b745 | 317 | void AliHLTComponentHandler::SetEnvironment(AliHLTAnalysisEnvironment* pEnv) |
70ed7d01 | 318 | { |
c515df4c | 319 | // set global environment |
f23a6e1a | 320 | if (pEnv) { |
a3c9b745 | 321 | memset(&fEnvironment, 0, sizeof(AliHLTAnalysisEnvironment)); |
322 | memcpy(&fEnvironment, pEnv, pEnv->fStructSize<sizeof(AliHLTAnalysisEnvironment)?pEnv->fStructSize:sizeof(AliHLTAnalysisEnvironment)); | |
323 | fEnvironment.fStructSize=sizeof(AliHLTAnalysisEnvironment); | |
fa274626 | 324 | if (fEnvironment.fLoggingFunc) { |
325 | // the AliHLTLogging::Init method also sets the stream output | |
326 | // and notification handler to AliLog. This should only be done | |
327 | // if the logging environment contains a logging function | |
328 | // for redirection | |
329 | AliHLTLogging::Init(fEnvironment.fLoggingFunc); | |
330 | } | |
f23a6e1a | 331 | } |
332 | } | |
333 | ||
dba03d72 | 334 | AliHLTComponentHandler::TLibraryMode AliHLTComponentHandler::SetLibraryMode(TLibraryMode mode) |
335 | { | |
c515df4c | 336 | // set library mode |
dba03d72 | 337 | TLibraryMode old=fLibraryMode; |
338 | fLibraryMode=mode; | |
339 | return old; | |
340 | } | |
341 | ||
f3506ea2 | 342 | int AliHLTComponentHandler::LoadLibrary( const char* libraryPath, int bActivateAgents) |
f23a6e1a | 343 | { |
c515df4c | 344 | // load a library |
f23a6e1a | 345 | int iResult=0; |
346 | if (libraryPath) { | |
7dbfa7c9 | 347 | TString libName=libraryPath; |
348 | int slash=-1; | |
349 | while ((slash=libName.Index("/"))>=0) { | |
350 | libName=libName.Remove(0, slash+1); | |
351 | } | |
352 | libName.ReplaceAll(".so",""); | |
f3506ea2 | 353 | |
354 | // set the global component handler for static component registration | |
f23a6e1a | 355 | AliHLTComponent::SetGlobalComponentHandler(this); |
f3506ea2 | 356 | |
c215072c | 357 | AliHLTLibHandle hLib; |
d4a18597 | 358 | AliHLTLibHandle* phSearch=FindLibrary(libraryPath); |
85f0cede | 359 | const char* loadtype=""; |
53feaef5 | 360 | #ifdef HAVE_DLFCN_H |
361 | // use interface to the dynamic linking loader | |
13398559 | 362 | |
363 | // exeption does not help in Root context, the Root exeption | |
364 | // handler always catches the exeption before. Have to find out | |
365 | // how exeptions can be used in Root | |
366 | /*try*/ { | |
f3506ea2 | 367 | hLib.fHandle=dlopen(libraryPath, RTLD_NOW); |
368 | loadtype="dlopen"; | |
369 | } | |
13398559 | 370 | /* |
f3506ea2 | 371 | catch (...) { |
372 | // error message printed further down | |
373 | loadtype="dlopen exeption"; | |
374 | } | |
13398559 | 375 | */ |
53feaef5 | 376 | #else |
377 | // use ROOT dynamic loader | |
c215072c | 378 | // check if the library was already loaded, as Load returns |
379 | // 'failure' if the library was already loaded | |
13398559 | 380 | /*try*/ { |
d4a18597 | 381 | if (phSearch) { |
382 | int* pRootHandle=reinterpret_cast<int*>(phSearch->fHandle); | |
c215072c | 383 | (*pRootHandle)++; |
384 | HLTDebug("instance %d of library %s loaded", (*pRootHandle), libraryPath); | |
5df0cbb9 | 385 | hLib.fHandle=pRootHandle; |
c215072c | 386 | } |
387 | ||
107e2b1c | 388 | if (hLib.fHandle==NULL && gSystem->Load(libraryPath)>=0) { |
c215072c | 389 | int* pRootHandle=new int; |
390 | if (pRootHandle) *pRootHandle=1; | |
5df0cbb9 | 391 | hLib.fHandle=pRootHandle; |
85f0cede | 392 | //HLTDebug("library %s loaded via gSystem", libraryPath); |
53feaef5 | 393 | } |
85f0cede | 394 | loadtype="gSystem"; |
f3506ea2 | 395 | } |
13398559 | 396 | /* |
f3506ea2 | 397 | catch (...) { |
398 | // error message printed further down | |
399 | loadtype="gSystem exeption"; | |
400 | } | |
13398559 | 401 | */ |
53feaef5 | 402 | #endif //HAVE_DLFCN_H |
5df0cbb9 | 403 | if (hLib.fHandle!=NULL) { |
c215072c | 404 | // create TString object to store library path and use pointer as handle |
5df0cbb9 | 405 | hLib.fName=new TString(libraryPath); |
dba03d72 | 406 | hLib.fMode=fLibraryMode; |
c215072c | 407 | fLibraryList.insert(fLibraryList.begin(), hLib); |
d4a18597 | 408 | if (!phSearch) { |
179be78e | 409 | typedef void (*CompileInfo)(const char*& date, const char*& time); |
842fd76a | 410 | CompileInfo fctInfo=(CompileInfo)FindSymbol(libraryPath, "CompileInfo"); |
7dbfa7c9 | 411 | const char* date=""; |
412 | const char* time=""; | |
413 | const char* buildOn=""; | |
842fd76a | 414 | if (fctInfo) { |
7dbfa7c9 | 415 | buildOn=" build on "; |
842fd76a | 416 | (*fctInfo)(date, time); |
417 | if (!date) date="unknown"; | |
418 | if (!time) time="unknown"; | |
842fd76a | 419 | } |
7dbfa7c9 | 420 | HLTImportant("using %s plugin%s%s %s (%s%s)", libraryPath, buildOn, date, time, hLib.fMode==kStatic?"persistent, ":"", loadtype); |
d4a18597 | 421 | } |
f3506ea2 | 422 | |
423 | // static registration of components when library is loaded | |
9ce4bf4a | 424 | iResult=RegisterScheduledComponents(); |
f3506ea2 | 425 | |
f23a6e1a | 426 | } else { |
f3506ea2 | 427 | HLTError("can not load library %s (%s)", libraryPath, loadtype); |
53feaef5 | 428 | #ifdef HAVE_DLFCN_H |
85465857 | 429 | HLTError("dlopen error: %s", dlerror()); |
53feaef5 | 430 | #endif //HAVE_DLFCN_H |
0fe88043 | 431 | #ifdef __APPLE__ |
432 | iResult=-EFTYPE; | |
433 | #else | |
f23a6e1a | 434 | iResult=-ELIBACC; |
0fe88043 | 435 | #endif |
f23a6e1a | 436 | } |
2bbbadd1 | 437 | AliHLTComponent::UnsetGlobalComponentHandler(); |
f3506ea2 | 438 | |
439 | if (iResult>=0) { | |
440 | // alternative dynamic registration by library agents | |
441 | // !!! has to be done after UnsetGlobalComponentHandler | |
7dbfa7c9 | 442 | if (bActivateAgents) ActivateAgents(libName.Data()); |
f3506ea2 | 443 | } |
444 | ||
f23a6e1a | 445 | } else { |
446 | iResult=-EINVAL; | |
447 | } | |
448 | return iResult; | |
449 | } | |
450 | ||
451 | int AliHLTComponentHandler::UnloadLibrary( const char* libraryPath ) | |
452 | { | |
c515df4c | 453 | // unload a library |
f23a6e1a | 454 | int iResult=0; |
53feaef5 | 455 | if (libraryPath) { |
a742f6f8 | 456 | vector<AliHLTLibHandle>::iterator element=fLibraryList.begin(); |
457 | while (element!=fLibraryList.end()) { | |
5df0cbb9 | 458 | TString* pName=reinterpret_cast<TString*>((*element).fName); |
a742f6f8 | 459 | if (pName->CompareTo(libraryPath)==0) { |
460 | UnloadLibrary(*element); | |
461 | fLibraryList.erase(element); | |
462 | break; | |
463 | } | |
464 | element++; | |
465 | } | |
53feaef5 | 466 | } else { |
467 | iResult=-EINVAL; | |
468 | } | |
f23a6e1a | 469 | return iResult; |
470 | } | |
471 | ||
a742f6f8 | 472 | int AliHLTComponentHandler::UnloadLibrary(AliHLTComponentHandler::AliHLTLibHandle &handle) |
f23a6e1a | 473 | { |
c515df4c | 474 | // unload a library |
f23a6e1a | 475 | int iResult=0; |
a742f6f8 | 476 | fgAliLoggingFunc=NULL; |
5df0cbb9 | 477 | TString* pName=reinterpret_cast<TString*>(handle.fName); |
dba03d72 | 478 | if (handle.fMode!=kStatic) { |
53feaef5 | 479 | #ifdef HAVE_DLFCN_H |
13398559 | 480 | // exeption does not help in Root context, the Root exeption |
481 | // handler always catches the exeption before. Have to find out | |
482 | // how exeptions can be used in Root | |
483 | ||
484 | /*try*/ { | |
f3506ea2 | 485 | dlclose(handle.fHandle); |
486 | } | |
13398559 | 487 | /* |
f3506ea2 | 488 | catch (...) { |
489 | HLTError("exeption caught during dlclose of library %s", pName!=NULL?pName->Data():""); | |
490 | } | |
13398559 | 491 | */ |
53feaef5 | 492 | #else |
5df0cbb9 | 493 | int* pCount=reinterpret_cast<int*>(handle.fHandle); |
a742f6f8 | 494 | if (--(*pCount)==0) { |
c215072c | 495 | if (pName) { |
a7222a6d | 496 | /** Matthias 26.04.2007 |
497 | * I spent about a week to investigate a bug which seems to be in ROOT. | |
498 | * Under certain circumstances, TSystem::Unload crashes. The crash occured | |
499 | * for the first time, when libAliHLTUtil was loaded from AliHLTSystem right | |
500 | * after the ComponentHandler was created. It does not occur when dlopen is | |
501 | * used. | |
502 | * It has most likely to do with the garbage collection and automatic | |
503 | * cleanup in ROOT. The crash occurs when ROOT is terminated and before | |
504 | * an instance of AliHLTSystem was created. | |
505 | * root [0] AliHLTSystem gHLT | |
506 | * It does not occur when the instance was created dynamically (but not even | |
507 | * deleted) | |
508 | * root [0] AliHLTSystem* gHLT=new AliHLTSystem | |
509 | * | |
510 | * For that reason, the libraries are not unloaded here, even though there | |
511 | * will be memory leaks. | |
a742f6f8 | 512 | gSystem->Unload(pName->Data()); |
a7222a6d | 513 | */ |
a742f6f8 | 514 | } |
515 | else { | |
516 | HLTError("missing library name, can not unload"); | |
c215072c | 517 | } |
a742f6f8 | 518 | delete pCount; |
519 | } | |
520 | #endif //HAVE_DLFCN_H | |
a742f6f8 | 521 | if (pName) { |
522 | HLTDebug("unload library %s", pName->Data()); | |
a742f6f8 | 523 | } else { |
524 | HLTWarning("missing name for unloaded library"); | |
525 | } | |
dba03d72 | 526 | } |
527 | handle.fName=NULL; | |
528 | handle.fHandle=NULL; | |
529 | if (pName) { | |
530 | delete pName; | |
531 | } | |
a742f6f8 | 532 | pName=NULL; |
533 | return iResult; | |
534 | } | |
535 | ||
536 | int AliHLTComponentHandler::UnloadLibraries() | |
537 | { | |
c515df4c | 538 | // unload all libraries |
a742f6f8 | 539 | int iResult=0; |
540 | vector<AliHLTLibHandle>::iterator element=fLibraryList.begin(); | |
541 | while (element!=fLibraryList.end()) { | |
542 | UnloadLibrary(*element); | |
c215072c | 543 | fLibraryList.erase(element); |
544 | element=fLibraryList.begin(); | |
f23a6e1a | 545 | } |
546 | return iResult; | |
547 | } | |
9ce4bf4a | 548 | |
f331e6c5 | 549 | AliHLTfctVoid AliHLTComponentHandler::FindSymbol(const char* library, const char* symbol) |
85f0cede | 550 | { |
c515df4c | 551 | // find symbol in library |
85f0cede | 552 | AliHLTLibHandle* hLib=FindLibrary(library); |
553 | if (hLib==NULL) return NULL; | |
d93ec7ca | 554 | void (*pFunc)()=NULL; |
85f0cede | 555 | #ifdef HAVE_DLFCN_H |
d93ec7ca | 556 | pFunc=(void (*)())dlsym(hLib->fHandle, symbol); |
85f0cede | 557 | #else |
5df0cbb9 | 558 | TString* name=reinterpret_cast<TString*>(hLib->fName); |
d93ec7ca | 559 | pFunc=(void (*)())gSystem->DynFindSymbol(name->Data(), symbol); |
85f0cede | 560 | #endif |
561 | return pFunc; | |
562 | } | |
563 | ||
564 | AliHLTComponentHandler::AliHLTLibHandle* AliHLTComponentHandler::FindLibrary(const char* library) | |
565 | { | |
c515df4c | 566 | // find a library by name |
85f0cede | 567 | AliHLTLibHandle* hLib=NULL; |
568 | vector<AliHLTLibHandle>::iterator element=fLibraryList.begin(); | |
569 | while (element!=fLibraryList.end()) { | |
5df0cbb9 | 570 | TString* name=reinterpret_cast<TString*>((*element).fName); |
85f0cede | 571 | if (name->CompareTo(library)==0) { |
572 | hLib=&(*element); | |
573 | break; | |
574 | } | |
575 | element++; | |
576 | } | |
577 | return hLib; | |
578 | } | |
579 | ||
9ce4bf4a | 580 | int AliHLTComponentHandler::AddStandardComponents() |
581 | { | |
c515df4c | 582 | // TODO: not quite clear what was the meaning behind this function |
9ce4bf4a | 583 | int iResult=0; |
584 | AliHLTComponent::SetGlobalComponentHandler(this); | |
9ce4bf4a | 585 | AliHLTComponent::UnsetGlobalComponentHandler(); |
586 | iResult=RegisterScheduledComponents(); | |
587 | return iResult; | |
588 | } | |
589 | ||
590 | int AliHLTComponentHandler::RegisterScheduledComponents() | |
591 | { | |
c515df4c | 592 | // register all scheduled components |
9ce4bf4a | 593 | int iResult=0; |
7bcd6cad | 594 | AliHLTComponentPList::iterator element=fScheduleList.begin(); |
9ce4bf4a | 595 | int iLocalResult=0; |
596 | while (element!=fScheduleList.end()) { | |
597 | iLocalResult=RegisterComponent(*element); | |
598 | if (iResult==0) iResult=iLocalResult; | |
599 | fScheduleList.erase(element); | |
600 | element=fScheduleList.begin(); | |
601 | } | |
602 | return iResult; | |
603 | } | |
604 | ||
7dbfa7c9 | 605 | int AliHLTComponentHandler::ActivateAgents(const char* library, const char* blackList) |
f3506ea2 | 606 | { |
c515df4c | 607 | // activate module agents |
7dbfa7c9 | 608 | vector<AliHLTModuleAgent*> agents; |
609 | for (AliHLTModuleAgent* pAgent=AliHLTModuleAgent::GetFirstAgent(); | |
9ebd6403 | 610 | pAgent!=NULL; |
7dbfa7c9 | 611 | pAgent=AliHLTModuleAgent::GetNextAgent()) { |
612 | ||
613 | // check if we found the agent for the specified library | |
614 | if (library) { | |
615 | TString check="libAliHLT"; check+=pAgent->GetModuleId(); | |
616 | if (check.CompareTo(library)==0) { | |
617 | agents.clear(); | |
618 | agents.push_back(pAgent); | |
619 | break; | |
f3506ea2 | 620 | } |
7dbfa7c9 | 621 | } |
622 | ||
623 | // check if the current agent is in the black list | |
624 | if (blackList) { | |
585525d0 | 625 | const char* found=strstr(blackList, pAgent->GetModuleId()); |
7dbfa7c9 | 626 | if (found) { |
627 | found+=strlen(pAgent->GetModuleId()); | |
628 | // skip this agent as it is in the blacklist | |
629 | if (*found==0 or *found==' ') continue; | |
f3506ea2 | 630 | } |
631 | } | |
7dbfa7c9 | 632 | agents.push_back(pAgent); |
633 | } | |
f3506ea2 | 634 | |
7dbfa7c9 | 635 | for (vector<AliHLTModuleAgent*>::iterator element=agents.begin(); |
636 | element!=agents.end(); element++) { | |
637 | (*element)->ActivateComponentHandler(this); | |
f3506ea2 | 638 | } |
7dbfa7c9 | 639 | |
640 | return agents.size(); | |
f3506ea2 | 641 | } |
642 | ||
55baa954 | 643 | int AliHLTComponentHandler::DeactivateAgents() const { |
644 | int ret=0; | |
645 | for (AliHLTModuleAgent* pAgent=AliHLTModuleAgent::GetFirstAgent(); | |
646 | pAgent!=NULL; pAgent=AliHLTModuleAgent::GetNextAgent()) { | |
647 | if(pAgent->GetComponentHandler()==this){ | |
648 | pAgent->ActivateComponentHandler(NULL); | |
649 | ++ret; | |
650 | } | |
651 | } | |
652 | return ret; | |
653 | } | |
654 | ||
cbd84228 | 655 | int AliHLTComponentHandler::DeleteOwnedComponents() |
9ce4bf4a | 656 | { |
c515df4c | 657 | // delete all component samples owned by the handler |
9ce4bf4a | 658 | int iResult=0; |
7bcd6cad | 659 | AliHLTComponentPList::iterator element=fOwnedComponents.begin(); |
f3506ea2 | 660 | while (element!=fOwnedComponents.end()) { |
5df0cbb9 | 661 | //DeregisterComponent((*element)->GetComponentID()); |
13398559 | 662 | // exeption does not help in Root context, the Root exeption |
663 | // handler always catches the exeption before. Have to find out | |
664 | // how exeptions can be used in Root | |
665 | /*try*/ { | |
cbd84228 | 666 | delete *element; |
667 | } | |
13398559 | 668 | /* |
cbd84228 | 669 | catch (...) { |
670 | HLTError("delete managed sample %p", *element); | |
671 | } | |
13398559 | 672 | */ |
f3506ea2 | 673 | fOwnedComponents.erase(element); |
674 | element=fOwnedComponents.begin(); | |
9ce4bf4a | 675 | } |
676 | return iResult; | |
677 | } | |
45c0a780 | 678 | |
679 | int AliHLTComponentHandler::SetRunDescription(const AliHLTRunDesc* desc, const char* runType) | |
680 | { | |
c515df4c | 681 | // set global run description |
45c0a780 | 682 | if (!desc) return -EINVAL; |
683 | if (desc->fStructSize!=sizeof(AliHLTRunDesc)) { | |
684 | HLTError("invalid size of RunDesc struct (%ul)", desc->fStructSize); | |
685 | return -EINVAL; | |
686 | } | |
687 | ||
688 | memcpy(&fRunDesc, desc, sizeof(AliHLTRunDesc)); | |
689 | if (runType) { | |
690 | if (fRunType) delete [] fRunType; | |
691 | fRunType=new char[sizeof(runType)+1]; | |
692 | if (fRunType) { | |
693 | strcpy(fRunType, runType); | |
694 | } | |
695 | } | |
696 | return 0; | |
697 | } |