0024023: Revamp the OCCT Handle -- GC
[occt.git] / src / Plugin / Plugin.cxx
CommitLineData
b311480e 1// Created on: 1997-03-06
2// Created by: Mister rmi
3// Copyright (c) 1997-1999 Matra Datavision
973c2be1 4// Copyright (c) 1999-2014 OPEN CASCADE SAS
b311480e 5//
973c2be1 6// This file is part of Open CASCADE Technology software library.
b311480e 7//
d5f74e42 8// This library is free software; you can redistribute it and/or modify it under
9// the terms of the GNU Lesser General Public License version 2.1 as published
973c2be1 10// by the Free Software Foundation, with special exception defined in the file
11// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12// distribution for complete text of the license and disclaimer of any warranty.
b311480e 13//
973c2be1 14// Alternatively, this file may be used under the terms of Open CASCADE
15// commercial license or contractual agreement.
7fd59977 16
17#include <Plugin.ixx>
18#include <Plugin_MapOfFunctions.hxx>
19#include <OSD_SharedLibrary.hxx>
20#include <Resource_Manager.hxx>
21#include <Plugin_Failure.hxx>
22
23#include <TCollection_AsciiString.hxx>
24
25static Standard_Character tc[1000];
26static Standard_PCharacter thePluginId = tc;
27
28
29//=======================================================================
30//function : Load
31//purpose :
32//=======================================================================
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33Handle(Standard_Transient) Plugin::Load (const Standard_GUID& aGUID,
34 const Standard_Boolean theVerbose)
7fd59977 35{
36
37 aGUID.ToCString(thePluginId);
38 TCollection_AsciiString pid(thePluginId);
39 static Plugin_MapOfFunctions theMapOfFunctions;
40 OSD_Function f;
41
42 if(!theMapOfFunctions.IsBound(pid)) {
43
44 Handle(Resource_Manager) PluginResource = new Resource_Manager("Plugin");
45 TCollection_AsciiString theResource(thePluginId);
46 theResource += ".Location";
47
48 if(!PluginResource->Find(theResource.ToCString())) {
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49 PluginResource = AdditionalPluginMap();
50 if (!PluginResource->Find(theResource.ToCString())) {
51 Standard_SStream aMsg; aMsg << "could not find the resource:";
52 aMsg << theResource.ToCString()<< endl;
53 if (theVerbose)
54 cout << "could not find the resource:"<<theResource.ToCString()<< endl;
55 Plugin_Failure::Raise(aMsg);
56 }
7fd59977 57 }
58
59 TCollection_AsciiString thePluginLibrary("");
60#ifndef WNT
61 thePluginLibrary += "lib";
62#endif
63 thePluginLibrary += PluginResource->Value(theResource.ToCString());
64#ifdef WNT
65 thePluginLibrary += ".dll";
66#elif defined(__APPLE__)
67 thePluginLibrary += ".dylib";
68#elif defined (HPUX) || defined(_hpux)
69 thePluginLibrary += ".sl";
70#else
71 thePluginLibrary += ".so";
72#endif
73 OSD_SharedLibrary theSharedLibrary(thePluginLibrary.ToCString());
74 if(!theSharedLibrary.DlOpen(OSD_RTLD_LAZY)) {
75 TCollection_AsciiString error(theSharedLibrary.DlError());
76 Standard_SStream aMsg; aMsg << "could not open:";
77 aMsg << PluginResource->Value(theResource.ToCString());
78 aMsg << "; reason:";
79 aMsg << error.ToCString();
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80 if (theVerbose)
81 cout << "could not open: " << PluginResource->Value(theResource.ToCString())<< " ; reason: "<< error.ToCString() << endl;
7fd59977 82 Plugin_Failure::Raise(aMsg);
83 }
84 f = theSharedLibrary.DlSymb("PLUGINFACTORY");
85 if( f == NULL ) {
86 TCollection_AsciiString error(theSharedLibrary.DlError());
87 Standard_SStream aMsg; aMsg << "could not find the factory in:";
88 aMsg << PluginResource->Value(theResource.ToCString());
89 aMsg << error.ToCString();
90 Plugin_Failure::Raise(aMsg);
91 }
92 theMapOfFunctions.Bind(pid,f);
93 }
94 else
95 f = theMapOfFunctions(pid);
96
97 Handle(Standard_Transient) (*fp) (const Standard_GUID&) = NULL;
98 fp = (Handle(Standard_Transient) (*)(const Standard_GUID&)) f;
99 Handle(Standard_Transient) theServiceFactory = (*fp) (aGUID);
100 return theServiceFactory;
101
102}
103
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104const Handle(Resource_Manager)& Plugin::AdditionalPluginMap()
105{
106 static Handle(Resource_Manager) aMap;
107 if (aMap.IsNull())
108 aMap = new Resource_Manager ("" /*theName*/, Standard_False /*theVerbose*/);
109 return aMap;
110}