1 | // |
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2 | // SharedLibrary_VMS.cpp |
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3 | // |
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4 | // $Id: //poco/1.3/Foundation/src/SharedLibrary_VMS.cpp#1 $ |
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5 | // |
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6 | // Library: Foundation |
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7 | // Package: SharedLibrary |
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8 | // Module: SharedLibrary |
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9 | // |
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10 | // Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH. |
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11 | // and Contributors. |
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12 | // |
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13 | // Permission is hereby granted, free of charge, to any person or organization |
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14 | // obtaining a copy of the software and accompanying documentation covered by |
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15 | // this license (the "Software") to use, reproduce, display, distribute, |
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16 | // execute, and transmit the Software, and to prepare derivative works of the |
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17 | // Software, and to permit third-parties to whom the Software is furnished to |
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18 | // do so, all subject to the following: |
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19 | // |
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20 | // The copyright notices in the Software and this entire statement, including |
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21 | // the above license grant, this restriction and the following disclaimer, |
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22 | // must be included in all copies of the Software, in whole or in part, and |
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23 | // all derivative works of the Software, unless such copies or derivative |
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24 | // works are solely in the form of machine-executable object code generated by |
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25 | // a source language processor. |
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26 | // |
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27 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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28 | // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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29 | // FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT |
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30 | // SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE |
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31 | // FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE, |
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32 | // ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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33 | // DEALINGS IN THE SOFTWARE. |
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34 | // |
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35 | |
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36 | |
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37 | #include <Poco/SharedLibrary_VMS.h> |
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38 | #include <Poco/Path.h> |
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39 | #include <lib$routines.h> |
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40 | #include <libdef.h> |
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41 | #include <descrip.h> |
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42 | #include <chfdef.h> |
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43 | #include <libfisdef.h> |
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44 | |
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45 | |
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46 | namespace Poco { |
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47 | |
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48 | |
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49 | FastMutex SharedLibraryImpl::_mutex; |
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50 | |
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51 | |
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52 | SharedLibraryImpl::SharedLibraryImpl() |
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53 | { |
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54 | } |
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55 | |
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56 | |
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57 | SharedLibraryImpl::~SharedLibraryImpl() |
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58 | { |
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59 | } |
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60 | |
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61 | |
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62 | void SharedLibraryImpl::loadImpl(const std::string& path) |
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63 | { |
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64 | FastMutex::ScopedLock lock(_mutex); |
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65 | |
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66 | if (!_path.empty()) throw LibraryAlreadyLoadedException(path); |
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67 | _path = path; |
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68 | } |
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69 | |
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70 | |
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71 | void SharedLibraryImpl::unloadImpl() |
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72 | { |
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73 | _path.clear(); |
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74 | } |
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75 | |
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76 | |
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77 | bool SharedLibraryImpl::isLoadedImpl() const |
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78 | { |
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79 | return !_path.empty(); |
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80 | } |
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81 | |
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82 | |
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83 | void* SharedLibraryImpl::findSymbolImpl(const std::string& name) |
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84 | { |
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85 | FastMutex::ScopedLock lock(_mutex); |
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86 | |
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87 | if (_path.empty()) return NULL; |
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88 | |
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89 | Path p(_path); |
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90 | std::string filename = p.getBaseName(); |
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91 | std::string ext = p.getExtension(); |
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92 | std::string imageSpec = p.makeParent().toString(); |
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93 | if (!imageSpec.empty() && !ext.empty()) |
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94 | { |
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95 | imageSpec.append("."); |
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96 | imageSpec.append(ext); |
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97 | } |
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98 | int value = 0; |
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99 | long flags = LIB$M_FIS_MIXEDCASE; |
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100 | POCO_DESCRIPTOR_STRING(filenameDsc, filename); |
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101 | POCO_DESCRIPTOR_STRING(symbolDsc, name); |
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102 | POCO_DESCRIPTOR_STRING(imageSpecDsc, imageSpec); |
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103 | |
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104 | try |
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105 | { |
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106 | // lib$find_image_symbol only accepts 32-bit pointers |
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107 | #pragma pointer_size save |
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108 | #pragma pointer_size 32 |
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109 | lib$find_image_symbol(&filenameDsc, &symbolDsc, &value, imageSpec.empty() ? 0 : &imageSpecDsc, flags); |
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110 | #pragma pointer_size restore |
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111 | } |
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112 | catch (struct chf$signal_array& sigarr) |
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113 | { |
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114 | unsigned sig = sigarr.chf$is_sig_name; |
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115 | unsigned act = LIB$_ACTIMAGE; |
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116 | if (lib$match_cond(&sig, &act)) |
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117 | throw LibraryLoadException(_path); |
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118 | } |
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119 | return (void*) value; |
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120 | } |
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121 | |
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122 | |
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123 | const std::string& SharedLibraryImpl::getPathImpl() const |
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124 | { |
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125 | return _path; |
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126 | } |
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127 | |
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128 | |
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129 | std::string SharedLibraryImpl::suffixImpl() |
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130 | { |
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131 | #if defined(_DEBUG) |
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132 | return "d.exe"; |
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133 | #else |
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134 | return ".exe"; |
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135 | #endif |
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136 | } |
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137 | |
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138 | |
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139 | } // namespace Poco |
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