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d098ebd4 | 1 | // $Id$ |
2 | ||
a3c9b745 | 3 | //************************************************************************** |
4 | //* This file is property of and copyright by the ALICE HLT Project * | |
5 | //* ALICE Experiment at CERN, All rights reserved. * | |
6 | //* * | |
7 | //* Primary Authors: Matthias Richter <Matthias.Richter@ift.uib.no> * | |
8 | //* for The ALICE HLT Project. * | |
9 | //* * | |
10 | //* Permission to use, copy, modify and distribute this software and its * | |
11 | //* documentation strictly for non-commercial purposes is hereby granted * | |
12 | //* without fee, provided that the above copyright notice appears in all * | |
13 | //* copies and that both the copyright notice and this permission notice * | |
14 | //* appear in the supporting documentation. The authors make no claims * | |
15 | //* about the suitability of this software for any purpose. It is * | |
16 | //* provided "as is" without express or implied warranty. * | |
17 | //************************************************************************** | |
d098ebd4 | 18 | |
02d01bbf | 19 | /** @file AliHLTExternalInterface.cxx |
d098ebd4 | 20 | @author Matthias Richter, Timm Steinbeck |
21 | @date | |
a3c9b745 | 22 | @brief Pure C interface to the AliRoot HLT analysis framework |
d098ebd4 | 23 | */ |
24 | ||
c043fa2c | 25 | #include "AliHLTExternalInterface.h" |
d098ebd4 | 26 | #include "AliHLTComponentHandler.h" |
27 | #include "AliHLTComponent.h" | |
c043fa2c | 28 | #include "AliHLTSystem.h" |
cc484ed9 | 29 | #include "AliHLTMisc.h" |
c043fa2c | 30 | #include <cerrno> |
ac7de438 | 31 | #include <cstring> |
a3c9b745 | 32 | ///////////////////////////////////////////////////////////////////////////////////// |
33 | // | |
34 | // AliHLT external interface functions | |
35 | // | |
d098ebd4 | 36 | |
a3c9b745 | 37 | static AliHLTComponentHandler *gComponentHandler = NULL; |
38 | static AliHLTRunDesc gRunDesc=kAliHLTVoidRunDesc; | |
39 | static char* gRunType=NULL; | |
d098ebd4 | 40 | |
a3c9b745 | 41 | int AliHLTAnalysisInitSystem( unsigned long version, AliHLTAnalysisEnvironment* externalEnv, unsigned long runNo, const char* runType ) |
d098ebd4 | 42 | { |
a3c9b745 | 43 | if ( gComponentHandler ) { |
44 | return EINPROGRESS; | |
45 | } | |
46 | ||
47 | if (!externalEnv) { | |
48 | return EINVAL; | |
49 | } | |
50 | ||
51 | if (!externalEnv->fStructSize) { | |
52 | return EPERM; | |
53 | } | |
54 | ||
55 | // map the environment structure to the internal structure to | |
56 | // support different versions of the interface | |
57 | AliHLTAnalysisEnvironment mappedEnv; | |
58 | memset(&mappedEnv, 0, sizeof(mappedEnv)); | |
59 | memcpy(&mappedEnv, externalEnv, sizeof(mappedEnv)<externalEnv->fStructSize?sizeof(mappedEnv):externalEnv->fStructSize); | |
60 | mappedEnv.fStructSize=sizeof(mappedEnv); | |
61 | ||
62 | gComponentHandler = new AliHLTComponentHandler(&mappedEnv); | |
63 | if ( !gComponentHandler ) | |
d098ebd4 | 64 | return EFAULT; |
a3c9b745 | 65 | gComponentHandler->InitAliLogTrap(gComponentHandler); |
66 | gComponentHandler->AnnounceVersion(); | |
67 | ||
68 | if (version!=ALIHLT_DATA_TYPES_VERSION && externalEnv->fLoggingFunc) { | |
69 | char message[100]; | |
70 | sprintf(message, "interface definition does not match: internal %d - external %lu", ALIHLT_DATA_TYPES_VERSION, version); | |
71 | externalEnv->fLoggingFunc(externalEnv->fParam, kHLTLogWarning, "AliHLTAnalysisInitSystem", "interface version", message); | |
72 | } | |
73 | ||
74 | gRunDesc.fRunNo=runNo; | |
75 | if (runType && strlen(runType)>0) { | |
76 | gRunType=new char[strlen(runType)+1]; | |
77 | if (gRunType) { | |
78 | strcpy(gRunType, runType); | |
79 | } | |
80 | } | |
cc484ed9 | 81 | |
82 | // the AliRoot dependent code is implemented by the | |
83 | // AliHLTMiscImplementation class in libHLTrec | |
84 | AliHLTMisc::Instance().InitCDB(getenv("ALIHLT_HCDBDIR")); | |
85 | AliHLTMisc::Instance().SetCDBRunNo(gRunDesc.fRunNo); | |
86 | AliHLTMisc::Instance().InitMagneticField(); | |
87 | ||
d098ebd4 | 88 | return 0; |
89 | } | |
90 | ||
a3c9b745 | 91 | int AliHLTAnalysisDeinitSystem() |
d098ebd4 | 92 | { |
a3c9b745 | 93 | if (gComponentHandler) delete gComponentHandler; |
94 | gComponentHandler = NULL; | |
95 | ||
96 | if (gRunType) delete[] gRunType; | |
97 | gRunType=NULL; | |
98 | ||
99 | gRunDesc=kAliHLTVoidRunDesc; | |
100 | ||
d098ebd4 | 101 | return 0; |
102 | } | |
103 | ||
a3c9b745 | 104 | int AliHLTAnalysisLoadLibrary( const char* libraryPath ) |
d098ebd4 | 105 | { |
a3c9b745 | 106 | if ( !gComponentHandler ) |
d098ebd4 | 107 | return ENXIO; |
a3c9b745 | 108 | return gComponentHandler->LoadLibrary( libraryPath ); |
d098ebd4 | 109 | } |
110 | ||
a3c9b745 | 111 | int AliHLTAnalysisUnloadLibrary( const char* /*libraryPath*/ ) |
d098ebd4 | 112 | { |
a3c9b745 | 113 | if ( !gComponentHandler ) |
d098ebd4 | 114 | return ENXIO; |
a3c9b745 | 115 | // Matthias 26.10.2007 |
116 | // Unloading of libraries has to be re-worked. It has been commented out here | |
117 | // since the libraries will be unloaded at the destruction of the component | |
118 | // handler instance anyway. So it has no effect to the operation in PubSub. | |
119 | // With the introduction of the dynamic component registration via module | |
120 | // agents we run into trouble when cleaning up the samples managed by the | |
121 | // component handler. Destruction of the sample objects is done AFTER | |
122 | // unloading of the library and thus the destructor is not present any | |
123 | // more. | |
124 | //return gComponentHandler->UnloadLibrary( libraryPath ); | |
125 | return 0; | |
d098ebd4 | 126 | } |
127 | ||
a3c9b745 | 128 | int AliHLTAnalysisCreateComponent( const char* componentType, void* environParam, int argc, const char** argv, AliHLTComponentHandle* handle, const char* description ) |
d098ebd4 | 129 | { |
a3c9b745 | 130 | if ( !gComponentHandler ) return ENXIO; |
131 | if (!handle) return EINVAL; | |
132 | ||
133 | AliHLTComponent* comp=NULL; | |
cc484ed9 | 134 | |
a3c9b745 | 135 | int ret = gComponentHandler->CreateComponent( componentType, comp); |
136 | if (ret>=0 && comp) { | |
a3c9b745 | 137 | const AliHLTAnalysisEnvironment* comenv=gComponentHandler->GetEnvironment(); |
c528fdc6 | 138 | comp->SetComponentEnvironment(comenv, environParam); |
a3c9b745 | 139 | if (comenv) { |
140 | if (description) { | |
141 | comp->SetComponentDescription(description); | |
142 | } | |
143 | comp->SetRunDescription(&gRunDesc, gRunType); | |
144 | } | |
145 | ret=comp->Init(comenv, environParam, argc, argv); | |
146 | } | |
d098ebd4 | 147 | *handle = reinterpret_cast<AliHLTComponentHandle>( comp ); |
a3c9b745 | 148 | |
d098ebd4 | 149 | return ret; |
150 | } | |
151 | ||
a3c9b745 | 152 | int AliHLTAnalysisDestroyComponent( AliHLTComponentHandle handle ) |
d098ebd4 | 153 | { |
154 | if ( !handle ) | |
a3c9b745 | 155 | return ENOENT; |
d098ebd4 | 156 | |
157 | AliHLTComponent* pComp=reinterpret_cast<AliHLTComponent*>( handle ); | |
158 | pComp->Deinit(); | |
159 | delete pComp; | |
a3c9b745 | 160 | return 0; |
d098ebd4 | 161 | } |
162 | ||
a3c9b745 | 163 | int AliHLTAnalysisProcessEvent( AliHLTComponentHandle handle, const AliHLTComponentEventData* evtData, const AliHLTComponentBlockData* blocks, |
f7561f8d | 164 | AliHLTComponentTriggerData* trigData, AliHLTUInt8_t* outputPtr, |
d098ebd4 | 165 | AliHLTUInt32_t* size, AliHLTUInt32_t* outputBlockCnt, |
f7561f8d | 166 | AliHLTComponentBlockData** outputBlocks, |
167 | AliHLTComponentEventDoneData** edd ) | |
d098ebd4 | 168 | { |
a3c9b745 | 169 | if ( !handle ) return EINVAL; |
d098ebd4 | 170 | AliHLTComponent* comp = reinterpret_cast<AliHLTComponent*>( handle ); |
a3c9b745 | 171 | if (!comp) return ENXIO; |
172 | int ret=comp->ProcessEvent( *evtData, blocks, *trigData, outputPtr, *size, *outputBlockCnt, *outputBlocks, *edd ); | |
173 | ||
174 | // internally, return values <0 are errors, >=0 are success with some | |
175 | // optional return vaue. | |
176 | // externally everthing !=0 is error. This is also according to the | |
177 | // common habit | |
178 | if (ret>0) ret=0; | |
179 | else if (ret<0) ret*=-1; | |
180 | return ret; | |
d098ebd4 | 181 | } |
182 | ||
a3c9b745 | 183 | int AliHLTAnalysisGetOutputDataType( AliHLTComponentHandle handle, AliHLTComponentDataType* dataType ) |
d098ebd4 | 184 | { |
a3c9b745 | 185 | if ( !handle ) return EINVAL; |
d098ebd4 | 186 | AliHLTComponent* comp = reinterpret_cast<AliHLTComponent*>( handle ); |
a3c9b745 | 187 | if (!comp) return ENXIO; |
d098ebd4 | 188 | *dataType = comp->GetOutputDataType(); |
189 | return 0; | |
190 | } | |
191 | ||
a3c9b745 | 192 | int AliHLTAnalysisGetOutputSize( AliHLTComponentHandle handle, unsigned long* constEventBase, unsigned long* constBlockBase, double* inputBlockMultiplier ) |
d098ebd4 | 193 | { |
a3c9b745 | 194 | if ( !handle ) return EINVAL; |
d098ebd4 | 195 | AliHLTComponent* comp = reinterpret_cast<AliHLTComponent*>( handle ); |
a3c9b745 | 196 | if (!comp) return ENXIO; |
197 | // TODO: extend component interface | |
e35ac21a | 198 | if (constBlockBase) *constBlockBase=0; |
199 | comp->GetOutputDataSize( *constEventBase, *inputBlockMultiplier ); | |
d098ebd4 | 200 | return 0; |
201 | } | |
c043fa2c | 202 | |
a3c9b745 | 203 | struct AliHLTAnalysisInterfaceCall { |
204 | const char* fSignature; | |
205 | void* fCall; | |
206 | }; | |
207 | ||
208 | AliHLTAnalysisInterfaceCall gSignatures[]={ | |
209 | //int AliHLTAnalysisInitSystem( unsigned long version, AliHLTAnalysisEnvironment* externalEnv, unsigned long runNo, const char* runType ) | |
210 | {"int AliHLTAnalysisInitSystem(unsigned long,AliHLTAnalysisEnvironment*,unsigned long,const char*)", (void*)AliHLTAnalysisInitSystem}, | |
211 | ||
212 | //int AliHLTAnalysisDeinitSystem() | |
213 | {"int AliHLTAnalysisDeinitSystem()", (void*)AliHLTAnalysisDeinitSystem}, | |
214 | ||
215 | //int AliHLTAnalysisLoadLibrary( const char* libraryPath ) | |
216 | {"int AliHLTAnalysisLoadLibrary(const char*)", (void*)AliHLTAnalysisLoadLibrary}, | |
217 | ||
218 | //int AliHLTAnalysisUnloadLibrary( const char* /*libraryPath*/ ) | |
219 | {"int AliHLTAnalysisUnloadLibrary(const char*)", (void*)AliHLTAnalysisUnloadLibrary}, | |
220 | ||
221 | //int AliHLTAnalysisCreateComponent( const char* componentType, void* environParam, int argc, const char** argv, AliHLTComponentHandle* handle, const char* description ) | |
222 | {"int AliHLTAnalysisCreateComponent(const char*,void*,int,const char**,AliHLTComponentHandle*,const char*)", (void*)AliHLTAnalysisCreateComponent}, | |
223 | ||
224 | //int AliHLTAnalysisDestroyComponent( AliHLTComponentHandle handle ) | |
225 | {"int AliHLTAnalysisDestroyComponent(AliHLTComponentHandle)", (void*)AliHLTAnalysisDestroyComponent}, | |
226 | ||
227 | //int AliHLTAnalysisProcessEvent( AliHLTComponentHandle handle, const AliHLTComponentEventData* evtData, const AliHLTComponentBlockData* blocks, AliHLTComponentTriggerData* trigData, AliHLTUInt8_t* outputPtr, AliHLTUInt32_t* size, AliHLTUInt32_t* outputBlockCnt, AliHLTComponentBlockData** outputBlocks, AliHLTComponentEventDoneData** edd ) | |
228 | {"int AliHLTAnalysisProcessEvent(AliHLTComponentHandle,const AliHLTComponentEventData*,const AliHLTComponentBlockData*,AliHLTComponentTriggerData*,AliHLTUInt8_t*,AliHLTUInt32_t*,AliHLTUInt32_t*,AliHLTComponentBlockData**,AliHLTComponentEventDoneData**)", (void*)AliHLTAnalysisProcessEvent}, | |
229 | ||
230 | //int AliHLTAnalysisGetOutputDataType( AliHLTComponentHandle handle, AliHLTComponentDataType* dataType ) | |
231 | {"int AliHLTAnalysisGetOutputDataType(AliHLTComponentHandle,AliHLTComponentDataType*)", (void*)AliHLTAnalysisGetOutputDataType}, | |
232 | ||
233 | //int AliHLTAnalysisGetOutputSize( AliHLTComponentHandle handle, unsigned long* constEventBase, unsigned long* constBlockBase, double* inputBlockMultiplier ) | |
234 | {"int AliHLTAnalysisGetOutputSize(AliHLTComponentHandle,unsigned long*,unsigned long*,double*)", (void*)AliHLTAnalysisGetOutputSize}, | |
235 | ||
236 | {NULL, NULL} | |
237 | }; | |
238 | ||
239 | void* AliHLTAnalysisGetInterfaceCall(const char* signature) | |
240 | { | |
241 | if (!signature) return NULL; | |
242 | for (int i=0; gSignatures[i].fSignature!=NULL; i++) { | |
243 | if (strcmp(gSignatures[i].fSignature, signature)==0) { | |
244 | return gSignatures[i].fCall; | |
245 | } | |
246 | } | |
247 | return NULL; | |
248 | } | |
249 | ||
250 | ///////////////////////////////////////////////////////////////////////////////////// | |
251 | // | |
252 | // AliHLTSystem interface functions | |
253 | // | |
c043fa2c | 254 | |
255 | int AliHLTSystemSetOptions(AliHLTSystem* pInstance, const char* options) | |
256 | { | |
257 | int iResult=0; | |
258 | if (pInstance) { | |
259 | AliHLTSystem* pSystem=reinterpret_cast<AliHLTSystem*>(pInstance); | |
260 | if (pSystem) { | |
261 | iResult=pSystem->ScanOptions(options); | |
262 | } else { | |
263 | iResult=-EFAULT; | |
264 | } | |
265 | } else { | |
266 | iResult=-EINVAL; | |
267 | } | |
268 | return iResult; | |
269 | } | |
c5123824 | 270 | |
271 | int AliHLTSystemProcessHLTOUT(AliHLTSystem* pInstance, AliHLTOUT* pHLTOUT, AliESDEvent* esd) | |
272 | { | |
273 | int iResult=0; | |
274 | if (pInstance) { | |
275 | AliHLTSystem* pSystem=reinterpret_cast<AliHLTSystem*>(pInstance); | |
276 | if (pSystem) { | |
277 | iResult=pSystem->ProcessHLTOUT(pHLTOUT, esd); | |
278 | } else { | |
279 | iResult=-EFAULT; | |
280 | } | |
281 | } else { | |
282 | iResult=-EINVAL; | |
283 | } | |
284 | return iResult; | |
285 | } |