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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> * | |
8 | * Artur Szostak <artursz@iafrica.com> * | |
9 | * for The ALICE Off-line 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 | **************************************************************************/ | |
19 | ||
20 | /////////////////////////////////////////////////////////////////////////////// | |
21 | // // | |
22 | // handler class for HLT analysis components // | |
23 | // // | |
24 | /////////////////////////////////////////////////////////////////////////////// | |
25 | ||
0c0c9d99 | 26 | #if __GNUC__>= 3 |
f23a6e1a | 27 | using namespace std; |
28 | #endif | |
29 | ||
a5854ddd | 30 | #include <cerrno> |
31 | #include <string> | |
f23a6e1a | 32 | #include <dlfcn.h> |
33 | #include "AliL3StandardIncludes.h" | |
34 | #include "AliHLTComponentHandler.h" | |
35 | #include "AliHLTComponent.h" | |
36 | #include "AliHLTDataTypes.h" | |
37 | #include "AliHLTSystem.h" | |
38 | ||
39 | ClassImp(AliHLTComponentHandler) | |
40 | ||
41 | AliHLTComponentHandler::AliHLTComponentHandler() | |
42 | { | |
43 | } | |
44 | ||
45 | ||
46 | AliHLTComponentHandler::~AliHLTComponentHandler() | |
47 | { | |
48 | UnloadLibraries(); | |
49 | } | |
50 | ||
51 | Int_t AliHLTComponentHandler::RegisterComponent(AliHLTComponent* pSample) | |
52 | { | |
53 | Int_t iResult=0; | |
54 | if (pSample) { | |
55 | if (FindComponent(pSample->GetComponentID())==NULL) { | |
56 | iResult=InsertComponent(pSample); | |
57 | if (iResult>=0) { | |
85465857 | 58 | HLTInfo("component %s registered", pSample->GetComponentID()); |
f23a6e1a | 59 | } |
60 | } else { | |
61 | // component already registered | |
85465857 | 62 | HLTInfo("component %s already registered, skipped", pSample->GetComponentID()); |
f23a6e1a | 63 | iResult=-EEXIST; |
64 | } | |
65 | } else { | |
66 | iResult=-EINVAL; | |
67 | } | |
68 | return iResult; | |
69 | } | |
70 | ||
71 | int AliHLTComponentHandler::DeregisterComponent( const char* componentID ) | |
72 | { | |
73 | return 0; | |
74 | } | |
75 | ||
76 | Int_t AliHLTComponentHandler::ScheduleRegister(AliHLTComponent* pSample) | |
77 | { | |
78 | Int_t iResult=0; | |
79 | if (pSample) { | |
80 | fScheduleList.push_back(pSample); | |
81 | } else { | |
82 | iResult=-EINVAL; | |
83 | } | |
84 | return iResult; | |
85 | } | |
86 | ||
87 | int AliHLTComponentHandler::CreateComponent(const Char_t* componentID, void* environ_param, int argc, const char** argv, AliHLTComponent*& component ) | |
88 | { | |
89 | int iResult=0; | |
90 | if (componentID) { | |
91 | AliHLTComponent* pSample=FindComponent(componentID); | |
92 | if (pSample!=NULL) { | |
93 | component=pSample->Spawn(); | |
94 | if (component) { | |
85465857 | 95 | HLTDebug("component \"%s\" created (%p)", componentID, component); |
f23a6e1a | 96 | component->Init(&fEnvironment, environ_param, argc, argv); |
5ec8e281 | 97 | } else { |
85465857 | 98 | HLTError("can not spawn component \"%s\"", componentID); |
5ec8e281 | 99 | iResult=-ENOENT; |
f23a6e1a | 100 | } |
5ec8e281 | 101 | } else { |
85465857 | 102 | HLTWarning("can not find component \"%s\"", componentID); |
5ec8e281 | 103 | iResult=-ENOENT; |
f23a6e1a | 104 | } |
105 | } else { | |
106 | iResult=-EINVAL; | |
107 | } | |
108 | return iResult; | |
109 | } | |
110 | ||
111 | Int_t AliHLTComponentHandler::FindComponentIndex(const Char_t* componentID) | |
112 | { | |
113 | Int_t iResult=0; | |
114 | if (componentID) { | |
115 | vector<AliHLTComponent*>::iterator element=fComponentList.begin(); | |
116 | while (element!=fComponentList.end() && iResult>=0) { | |
117 | if (strcmp(componentID, (*element)->GetComponentID())==0) { | |
118 | break; | |
119 | } | |
120 | element++; | |
121 | iResult++; | |
122 | } | |
123 | if (element==fComponentList.end()) iResult=-ENOENT; | |
124 | } else { | |
125 | iResult=-EINVAL; | |
126 | } | |
127 | return iResult; | |
128 | } | |
129 | ||
130 | AliHLTComponent* AliHLTComponentHandler::FindComponent(const Char_t* componentID) | |
131 | { | |
132 | AliHLTComponent* pSample=NULL; | |
133 | Int_t index=FindComponentIndex(componentID); | |
134 | if (index>=0) { | |
135 | pSample=(AliHLTComponent*)fComponentList.at(index); | |
136 | } | |
137 | return pSample; | |
138 | } | |
139 | ||
140 | Int_t AliHLTComponentHandler::InsertComponent(AliHLTComponent* pSample) | |
141 | { | |
142 | Int_t iResult=0; | |
143 | if (pSample!=NULL) { | |
144 | fComponentList.push_back(pSample); | |
145 | } else { | |
146 | iResult=-EINVAL; | |
147 | } | |
148 | return iResult; | |
149 | } | |
150 | ||
151 | void AliHLTComponentHandler::List() { | |
152 | vector<AliHLTComponent*>::iterator element=fComponentList.begin(); | |
153 | int index=0; | |
154 | while (element!=fComponentList.end()) { | |
85465857 | 155 | HLTInfo("%d. %s", index++, (*element++)->GetComponentID()); |
f23a6e1a | 156 | } |
157 | } | |
158 | ||
159 | void AliHLTComponentHandler::SetEnvironment(AliHLTComponentEnvironment* pEnv) { | |
160 | if (pEnv) { | |
161 | memcpy(&fEnvironment, pEnv, sizeof(AliHLTComponentEnvironment)); | |
bb16cc41 | 162 | AliHLTLogging::Init(fEnvironment.fLoggingFunc); |
f23a6e1a | 163 | } |
164 | } | |
165 | ||
166 | int AliHLTComponentHandler::LoadLibrary( const char* libraryPath ) | |
167 | { | |
168 | int iResult=0; | |
169 | if (libraryPath) { | |
170 | AliHLTComponent::SetGlobalComponentHandler(this); | |
171 | AliHLTLibHandle hLib=dlopen(libraryPath, RTLD_NOW); | |
172 | if (hLib) { | |
173 | AliHLTComponent::UnsetGlobalComponentHandler(); | |
85465857 | 174 | HLTDebug("library %s loaded", libraryPath); |
f23a6e1a | 175 | fLibraryList.push_back(hLib); |
176 | vector<AliHLTComponent*>::iterator element=fScheduleList.begin(); | |
177 | int iSize=fScheduleList.size(); | |
178 | int iLocalResult=0; | |
179 | while (iSize-- > 0) { | |
180 | element=fScheduleList.begin(); | |
181 | iLocalResult=RegisterComponent(*element); | |
182 | if (iResult==0) iResult=iLocalResult; | |
183 | fScheduleList.erase(element); | |
184 | } | |
185 | } else { | |
85465857 | 186 | HLTError("can not load library %s", libraryPath); |
187 | HLTError("dlopen error: %s", dlerror()); | |
f23a6e1a | 188 | iResult=-ELIBACC; |
189 | } | |
190 | } else { | |
191 | iResult=-EINVAL; | |
192 | } | |
193 | return iResult; | |
194 | } | |
195 | ||
196 | int AliHLTComponentHandler::UnloadLibrary( const char* libraryPath ) | |
197 | { | |
198 | int iResult=0; | |
199 | return iResult; | |
200 | } | |
201 | ||
202 | int AliHLTComponentHandler::UnloadLibraries() | |
203 | { | |
204 | int iResult=0; | |
205 | vector<AliHLTLibHandle>::iterator element=fLibraryList.begin(); | |
206 | while (element!=fLibraryList.end()) { | |
207 | dlclose(*element); | |
208 | element++; | |
209 | } | |
210 | return iResult; | |
211 | } |