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f23a6e1a | 1 | // $Id$ |
2 | ||
3 | /************************************************************************** | |
4 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
5 | * * | |
6 | * Authors: Matthias Richter <Matthias.Richter@ift.uib.no> * | |
7 | * Timm Steinbeck <timm@kip.uni-heidelberg.de> * | |
f23a6e1a | 8 | * for The ALICE Off-line 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 | ||
b22e91eb | 19 | /** @file AliHLTComponentHandler.cxx |
20 | @author Matthias Richter, Timm Steinbeck | |
21 | @date | |
22 | @brief Implementation of HLT component handler. */ | |
f23a6e1a | 23 | |
0c0c9d99 | 24 | #if __GNUC__>= 3 |
f23a6e1a | 25 | using namespace std; |
26 | #endif | |
27 | ||
f23a6e1a | 28 | #include <dlfcn.h> |
85869391 | 29 | #include "AliHLTStdIncludes.h" |
f23a6e1a | 30 | #include "AliHLTComponentHandler.h" |
31 | #include "AliHLTComponent.h" | |
32 | #include "AliHLTDataTypes.h" | |
33 | #include "AliHLTSystem.h" | |
34 | ||
b22e91eb | 35 | /** ROOT macro for the implementation of ROOT specific class methods */ |
f23a6e1a | 36 | ClassImp(AliHLTComponentHandler) |
37 | ||
38 | AliHLTComponentHandler::AliHLTComponentHandler() | |
85869391 | 39 | : |
40 | fComponentList(), | |
41 | fScheduleList(), | |
42 | fLibraryList(), | |
43 | fEnvironment() | |
f23a6e1a | 44 | { |
85869391 | 45 | memset(&fEnvironment, 0, sizeof(AliHLTComponentEnvironment)); |
f23a6e1a | 46 | } |
47 | ||
f23a6e1a | 48 | AliHLTComponentHandler::~AliHLTComponentHandler() |
49 | { | |
50 | UnloadLibraries(); | |
51 | } | |
52 | ||
53 | Int_t AliHLTComponentHandler::RegisterComponent(AliHLTComponent* pSample) | |
54 | { | |
55 | Int_t iResult=0; | |
56 | if (pSample) { | |
57 | if (FindComponent(pSample->GetComponentID())==NULL) { | |
58 | iResult=InsertComponent(pSample); | |
59 | if (iResult>=0) { | |
85465857 | 60 | HLTInfo("component %s registered", pSample->GetComponentID()); |
f23a6e1a | 61 | } |
62 | } else { | |
63 | // component already registered | |
85465857 | 64 | HLTInfo("component %s already registered, skipped", pSample->GetComponentID()); |
f23a6e1a | 65 | iResult=-EEXIST; |
66 | } | |
67 | } else { | |
68 | iResult=-EINVAL; | |
69 | } | |
70 | return iResult; | |
71 | } | |
72 | ||
73 | int AliHLTComponentHandler::DeregisterComponent( const char* componentID ) | |
74 | { | |
75 | return 0; | |
76 | } | |
77 | ||
78 | Int_t AliHLTComponentHandler::ScheduleRegister(AliHLTComponent* pSample) | |
79 | { | |
80 | Int_t iResult=0; | |
81 | if (pSample) { | |
82 | fScheduleList.push_back(pSample); | |
83 | } else { | |
84 | iResult=-EINVAL; | |
85 | } | |
86 | return iResult; | |
87 | } | |
88 | ||
b22e91eb | 89 | int AliHLTComponentHandler::CreateComponent(const char* componentID, void* environ_param, int argc, const char** argv, AliHLTComponent*& component ) |
f23a6e1a | 90 | { |
91 | int iResult=0; | |
92 | if (componentID) { | |
93 | AliHLTComponent* pSample=FindComponent(componentID); | |
94 | if (pSample!=NULL) { | |
95 | component=pSample->Spawn(); | |
96 | if (component) { | |
85465857 | 97 | HLTDebug("component \"%s\" created (%p)", componentID, component); |
f23a6e1a | 98 | component->Init(&fEnvironment, environ_param, argc, argv); |
5ec8e281 | 99 | } else { |
85465857 | 100 | HLTError("can not spawn component \"%s\"", componentID); |
5ec8e281 | 101 | iResult=-ENOENT; |
f23a6e1a | 102 | } |
5ec8e281 | 103 | } else { |
85465857 | 104 | HLTWarning("can not find component \"%s\"", componentID); |
5ec8e281 | 105 | iResult=-ENOENT; |
f23a6e1a | 106 | } |
107 | } else { | |
108 | iResult=-EINVAL; | |
109 | } | |
110 | return iResult; | |
111 | } | |
112 | ||
113 | Int_t AliHLTComponentHandler::FindComponentIndex(const Char_t* componentID) | |
114 | { | |
115 | Int_t iResult=0; | |
116 | if (componentID) { | |
117 | vector<AliHLTComponent*>::iterator element=fComponentList.begin(); | |
118 | while (element!=fComponentList.end() && iResult>=0) { | |
119 | if (strcmp(componentID, (*element)->GetComponentID())==0) { | |
120 | break; | |
121 | } | |
122 | element++; | |
123 | iResult++; | |
124 | } | |
125 | if (element==fComponentList.end()) iResult=-ENOENT; | |
126 | } else { | |
127 | iResult=-EINVAL; | |
128 | } | |
129 | return iResult; | |
130 | } | |
131 | ||
132 | AliHLTComponent* AliHLTComponentHandler::FindComponent(const Char_t* componentID) | |
133 | { | |
134 | AliHLTComponent* pSample=NULL; | |
135 | Int_t index=FindComponentIndex(componentID); | |
136 | if (index>=0) { | |
137 | pSample=(AliHLTComponent*)fComponentList.at(index); | |
138 | } | |
139 | return pSample; | |
140 | } | |
141 | ||
142 | Int_t AliHLTComponentHandler::InsertComponent(AliHLTComponent* pSample) | |
143 | { | |
144 | Int_t iResult=0; | |
145 | if (pSample!=NULL) { | |
146 | fComponentList.push_back(pSample); | |
147 | } else { | |
148 | iResult=-EINVAL; | |
149 | } | |
150 | return iResult; | |
151 | } | |
152 | ||
153 | void AliHLTComponentHandler::List() { | |
154 | vector<AliHLTComponent*>::iterator element=fComponentList.begin(); | |
155 | int index=0; | |
156 | while (element!=fComponentList.end()) { | |
85465857 | 157 | HLTInfo("%d. %s", index++, (*element++)->GetComponentID()); |
f23a6e1a | 158 | } |
159 | } | |
160 | ||
161 | void AliHLTComponentHandler::SetEnvironment(AliHLTComponentEnvironment* pEnv) { | |
162 | if (pEnv) { | |
163 | memcpy(&fEnvironment, pEnv, sizeof(AliHLTComponentEnvironment)); | |
bb16cc41 | 164 | AliHLTLogging::Init(fEnvironment.fLoggingFunc); |
f23a6e1a | 165 | } |
166 | } | |
167 | ||
168 | int AliHLTComponentHandler::LoadLibrary( const char* libraryPath ) | |
169 | { | |
170 | int iResult=0; | |
171 | if (libraryPath) { | |
172 | AliHLTComponent::SetGlobalComponentHandler(this); | |
173 | AliHLTLibHandle hLib=dlopen(libraryPath, RTLD_NOW); | |
174 | if (hLib) { | |
175 | AliHLTComponent::UnsetGlobalComponentHandler(); | |
85465857 | 176 | HLTDebug("library %s loaded", libraryPath); |
f23a6e1a | 177 | fLibraryList.push_back(hLib); |
178 | vector<AliHLTComponent*>::iterator element=fScheduleList.begin(); | |
179 | int iSize=fScheduleList.size(); | |
180 | int iLocalResult=0; | |
181 | while (iSize-- > 0) { | |
182 | element=fScheduleList.begin(); | |
183 | iLocalResult=RegisterComponent(*element); | |
184 | if (iResult==0) iResult=iLocalResult; | |
185 | fScheduleList.erase(element); | |
186 | } | |
187 | } else { | |
85465857 | 188 | HLTError("can not load library %s", libraryPath); |
189 | HLTError("dlopen error: %s", dlerror()); | |
f23a6e1a | 190 | iResult=-ELIBACC; |
191 | } | |
192 | } else { | |
193 | iResult=-EINVAL; | |
194 | } | |
195 | return iResult; | |
196 | } | |
197 | ||
198 | int AliHLTComponentHandler::UnloadLibrary( const char* libraryPath ) | |
199 | { | |
200 | int iResult=0; | |
201 | return iResult; | |
202 | } | |
203 | ||
204 | int AliHLTComponentHandler::UnloadLibraries() | |
205 | { | |
206 | int iResult=0; | |
207 | vector<AliHLTLibHandle>::iterator element=fLibraryList.begin(); | |
208 | while (element!=fLibraryList.end()) { | |
209 | dlclose(*element); | |
210 | element++; | |
211 | } | |
212 | return iResult; | |
213 | } |