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7131ea63 | 1 | // $Id$ |
2 | ||
3 | //************************************************************************** | |
2dfe97e6 | 4 | //* This file is property of and copyright by the * |
7131ea63 | 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 | //************************************************************************** | |
18 | ||
2dfe97e6 | 19 | /// @file AliHLTOUTHandlerChain.cxx |
20 | /// @author Matthias Richter | |
21 | /// @date 24.06.2008 | |
22 | /// @brief HLTOUT handler of type kChain. | |
23 | /// | |
7131ea63 | 24 | |
25 | #include "AliHLTOUTHandlerChain.h" | |
26 | #include "AliHLTOUT.h" | |
27 | #include "AliHLTSystem.h" | |
28 | #include "AliHLTOUTTask.h" | |
29 | #include "TString.h" | |
30 | #include "TObjString.h" | |
31 | #include "TObjArray.h" | |
19b5c321 | 32 | #include <cassert> |
7131ea63 | 33 | |
34 | /** ROOT macro for the implementation of ROOT specific class methods */ | |
35 | ClassImp(AliHLTOUTHandlerChain) | |
36 | ||
37 | AliHLTOUTHandlerChain::AliHLTOUTHandlerChain(const char* arguments) | |
38 | : | |
39 | fChains(), | |
40 | fOptions(), | |
41 | fpSystem(NULL), | |
19b5c321 | 42 | fbHaveOutput(false) |
7131ea63 | 43 | { |
2dfe97e6 | 44 | // The handler implements the kChain processing of HLTOUT data. |
45 | // The ids of the chains to be run during processing are provided | |
46 | // as parameter to the constructor. The AliHLTModuleAgent | |
47 | // can just create a new instance and specify the chains in order | |
48 | // to define the HLTOUT handling of type kChain for a certain data | |
49 | // block. The same instance can be returned for multiple data blocks. | |
50 | // The handler will run once on all data blocks. | |
7131ea63 | 51 | if (arguments) { |
52 | TString args=arguments; | |
53 | TObjArray* pTokens=args.Tokenize(" "); | |
54 | if (pTokens) { | |
55 | int iEntries=pTokens->GetEntries(); | |
56 | for (int i=0; i<iEntries; i++) { | |
57 | TString token=(((TObjString*)pTokens->At(i))->GetString()); | |
58 | if (token.Contains("chains=")) { | |
59 | TString param=token.ReplaceAll("chains=", ""); | |
60 | fChains=param.ReplaceAll(",", " "); | |
61 | } else { | |
62 | if (!fOptions.IsNull()) fOptions+=" "; | |
63 | fOptions+=token; | |
64 | } | |
65 | } | |
66 | delete pTokens; | |
67 | } | |
68 | } | |
69 | } | |
70 | ||
71 | AliHLTOUTHandlerChain::~AliHLTOUTHandlerChain() | |
72 | { | |
2dfe97e6 | 73 | // destructor |
7131ea63 | 74 | if (fpSystem) { |
a472be38 | 75 | // TODO: the EOR is currenttly not send because the reconstruction |
76 | // chian is not stopped. Trying it here gives an error, there is | |
77 | // some state mismatch in AliHLTSystem. Probably due to the fact, | |
78 | // that the AliHLTSystem::Reconstruct method is not used | |
79 | // if (!fpSystem->CheckStatus(AliHLTSystem::kError)) { | |
80 | // // send specific 'event' to execute the stop sequence | |
81 | // fpSystem->Reconstruct(0, NULL, NULL); | |
82 | // } | |
7131ea63 | 83 | delete fpSystem; |
84 | } | |
85 | } | |
86 | ||
87 | int AliHLTOUTHandlerChain::ProcessData(AliHLTOUT* pData) | |
88 | { | |
2dfe97e6 | 89 | // data processing function |
7131ea63 | 90 | if (!pData) return -EINVAL; |
91 | int iResult=0; | |
92 | ||
93 | if (CheckStatus(kHandlerError)) { | |
94 | HLTWarning("kChain handler '%s' in error state, skipping processing of associated HLTOUT blocks", fChains.Data()); | |
95 | return -EPERM; | |
96 | } | |
97 | ||
98 | if (!fpSystem && (iResult=InitSystem())<0) { | |
99 | return iResult; | |
100 | } | |
101 | ||
19b5c321 | 102 | if (fpSystem->CheckStatus(AliHLTSystem::kError)) { |
7131ea63 | 103 | HLTWarning("kChain handler '%s': system in error state, skipping processing of associated HLTOUT blocks", fChains.Data()); |
104 | return -EACCES; | |
105 | } | |
106 | ||
107 | // run one event and do not stop the chain | |
108 | { | |
109 | AliHLTOUT::AliHLTOUTGlobalInstanceGuard g(pData); | |
110 | if ((iResult=fpSystem->Run(1,0))>=0) { | |
111 | // sub-collection is going to be reset from the | |
112 | // parent HLTOUT collection | |
19b5c321 | 113 | AliHLTOUTTask* pTask=fpSystem->GetHLTOUTTask(); |
114 | ||
115 | // either have the task or none of the chains controlled by the chain | |
116 | // handler has output | |
117 | assert(pTask || !fbHaveOutput); | |
118 | if (pTask) { | |
119 | AliHLTOUT* pSubCollection=dynamic_cast<AliHLTOUT*>(pTask); | |
7131ea63 | 120 | pSubCollection->Init(); |
f75868b3 | 121 | |
122 | // filter out some data blocks which should not be processed | |
123 | // in the next stage: | |
124 | // 1. we are not interested in the component statistics | |
125 | // produced in the HLTOUT handler chain | |
126 | for (iResult=pSubCollection->SelectFirstDataBlock(); | |
127 | iResult>=0; | |
128 | iResult=pSubCollection->SelectNextDataBlock()) { | |
129 | AliHLTComponentDataType dt=kAliHLTVoidDataType; | |
130 | AliHLTUInt32_t spec=kAliHLTVoidDataSpec; | |
131 | pSubCollection->GetDataBlockDescription(dt, spec); | |
132 | if (dt==kAliHLTDataTypeComponentStatistics) { | |
133 | pSubCollection->MarkDataBlockProcessed(); | |
134 | } | |
135 | } | |
7131ea63 | 136 | pData->AddSubCollection(pSubCollection); |
19b5c321 | 137 | } else if (fbHaveOutput) { |
138 | // this is an error condition since task has been created and should | |
139 | // be available | |
140 | HLTError("can not get instance of HLTOUT task from HLT system %p", fpSystem); | |
141 | } | |
7131ea63 | 142 | } |
143 | } | |
144 | ||
145 | return iResult; | |
146 | } | |
147 | ||
148 | int AliHLTOUTHandlerChain::CreateConfigurations(AliHLTConfigurationHandler* /*handler*/) | |
149 | { | |
150 | //default implementation, nothing to do | |
151 | return 0; | |
152 | } | |
153 | ||
154 | int AliHLTOUTHandlerChain::InitSystem() | |
155 | { | |
2dfe97e6 | 156 | // initialize the AliHLTSystem instance |
7131ea63 | 157 | int iResult=0; |
158 | if (!fpSystem) { | |
159 | // init AliHLTSystem | |
19b5c321 | 160 | TString systemName="kChain_"; systemName+=fChains; |
161 | systemName.ReplaceAll(" ", "_"); | |
162 | fpSystem = new AliHLTSystem(GetGlobalLoggingLevel(), systemName); | |
7131ea63 | 163 | if (fpSystem) { |
164 | if ((iResult=fpSystem->ScanOptions(fOptions.Data()))>=0) { | |
165 | // load configurations if not specified by external macro | |
166 | if (!fOptions.Contains("config=")) | |
f331e6c5 | 167 | iResult=CreateConfigurations(fpSystem->GetConfigurationHandler()); |
7131ea63 | 168 | |
169 | if (iResult>=0) { | |
170 | iResult=fpSystem->BuildTaskList(fChains.Data()); | |
171 | } | |
172 | ||
173 | // add AliHLTOUTTask on top of the configuartions in order to | |
174 | // collect the data | |
19b5c321 | 175 | // remember if task has been created (result>0) |
176 | fbHaveOutput=((iResult=fpSystem->AddHLTOUTTask(fChains.Data()))>0); | |
7131ea63 | 177 | } |
178 | } else { | |
179 | iResult=-ENOMEM; | |
180 | } | |
19b5c321 | 181 | if (iResult<0) { |
7131ea63 | 182 | SetStatusFlag(kHandlerError); |
183 | if (fpSystem) delete fpSystem; fpSystem=NULL; | |
7131ea63 | 184 | } |
185 | } | |
186 | return iResult; | |
187 | } |