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annotate host/libcdl/interface.cxx @ 76:435cced73e2f ecos-v1_3_1-release

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eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
author jlarmour
date Tue, 28 Mar 2000 14:10:45 +0000
parents
children 6736c52df507
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435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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1 //{{{ Banner
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2
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3 //============================================================================
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4 //
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5 // interface.cxx
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6 //
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7 // Implementation of the CdlInterface class
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8 //
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9 //============================================================================
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10 //####COPYRIGHTBEGIN####
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11 //
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12 // ----------------------------------------------------------------------------
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13 // Copyright (C) 1999, 2000 Red Hat, Inc.
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14 //
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15 // This file is part of the eCos host tools.
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16 //
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17 // This program is free software; you can redistribute it and/or modify it
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18 // under the terms of the GNU General Public License as published by the Free
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19 // Software Foundation; either version 2 of the License, or (at your option)
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20 // any later version.
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21 //
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22 // This program is distributed in the hope that it will be useful, but WITHOUT
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23 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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24 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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25 // more details.
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26 //
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27 // You should have received a copy of the GNU General Public License along with
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28 // this program; if not, write to the Free Software Foundation, Inc.,
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29 // 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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30 //
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31 // ----------------------------------------------------------------------------
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32 //
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33 //####COPYRIGHTEND####
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34 //============================================================================
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35 //#####DESCRIPTIONBEGIN####
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36 //
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37 // Author(s): bartv
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38 // Contact(s): bartv
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39 // Date: 1999/03/01
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40 // Version: 0.02
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41 //
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42 //####DESCRIPTIONEND####
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43 //============================================================================
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44
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45 //}}}
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46 //{{{ #include's
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47
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48 // ----------------------------------------------------------------------------
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49 #include "cdlconfig.h"
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50
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51 // Get the infrastructure types, assertions, tracing and similar
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52 // facilities.
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53 #include <cyg/infra/cyg_ass.h>
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54 #include <cyg/infra/cyg_trac.h>
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55
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56 // <cdlcore.hxx> defines everything implemented in this module.
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57 // It implicitly supplies <string>, <vector> and <map> because
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58 // the class definitions rely on these headers.
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59 #include <cdlcore.hxx>
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60
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61 //}}}
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62
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63 //{{{ Statics
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64
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65 // ----------------------------------------------------------------------------
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66 CYGDBG_DEFINE_MEMLEAK_COUNTER(CdlInterfaceBody);
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67
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68 //}}}
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69 //{{{ Constructor
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70
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71 // ----------------------------------------------------------------------------
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72 CdlInterfaceBody::CdlInterfaceBody(std::string name_arg, bool generated_arg)
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73 : CdlNodeBody(name_arg),
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74 CdlUserVisibleBody(),
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75 CdlValuableBody(CdlValueFlavor_Data),
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76 CdlParentableBody(),
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77 CdlBuildableBody(),
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78 CdlDefinableBody()
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79 {
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80 CYG_REPORT_FUNCNAME("CdlInterfaceBody:: constructor");
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81 CYG_REPORT_FUNCARG1XV(this);
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82
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83 generated = generated_arg;
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84 cdlinterfacebody_cookie = CdlInterfaceBody_Magic;
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85 CYGDBG_MEMLEAK_CONSTRUCTOR();
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86
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87 CYG_POSTCONDITION_THISC();
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88 CYG_REPORT_RETURN();
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89 }
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90
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91 //}}}
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92 //{{{ Destructor
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93
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94 // ----------------------------------------------------------------------------
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95 CdlInterfaceBody::~CdlInterfaceBody()
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96 {
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97 CYG_REPORT_FUNCNAME("CdlInterfaceBody:: destructor");
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98 CYG_REPORT_FUNCARG1XV(this);
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99 CYG_PRECONDITION_THISC();
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100
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101 cdlinterfacebody_cookie = CdlInterfaceBody_Invalid;
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102 CYGDBG_MEMLEAK_DESTRUCTOR();
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103
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104 CYG_REPORT_RETURN();
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105 }
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106
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107 //}}}
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108 //{{{ parse_interface()
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109
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110 // ----------------------------------------------------------------------------
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111 // Parsing an interface definition. This is basically the same as parsing
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112 // an option, component, or package.
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113
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114 int
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115 CdlInterfaceBody::parse_interface(CdlInterpreter interp, int argc, char** argv)
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116 {
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117 CYG_REPORT_FUNCNAMETYPE("CdlInterface::parse_interface", "result %d");
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118 CYG_REPORT_FUNCARG1("argc %d", argc);
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119 CYG_PRECONDITION_CLASSC(interp);
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120
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121 const char* diag_argv0 = CdlParse::get_tcl_cmd_name(argv[0]);
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122
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123 CdlLoadable loadable = interp->get_loadable();
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124 CdlContainer parent = interp->get_container();
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125 CdlToplevel toplevel = interp->get_toplevel();
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126 std::string filename = interp->get_filename();
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127 CYG_ASSERT_CLASSC(loadable); // There should always be a loadable during parsing
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128 CYG_ASSERT_CLASSC(parent);
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129 CYG_ASSERT_CLASSC(toplevel);
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130 CYG_ASSERTC("" != filename);
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131
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132 // The new interface should be created and added to the loadable.
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133 // early on. If there is a parsing error it will get cleaned up
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134 // automatically as a consequence of the loadable destructor.
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135 // However it is necessary to validate the name first. Errors
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136 // should be reported via CdlParse::report_error(), which
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137 // may result in an exception.
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138 CdlInterface new_interface = 0;
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139 bool ok = true;
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140 int result = TCL_OK;
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141 try {
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142
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143 // Currently there are no command-line options. This may change in future.
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144 if (3 != argc) {
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145 CdlParse::report_error(interp, std::string("Incorrect number of arguments to ") + diag_argv0 +
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146 "\n Expecting name and properties list.");
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147 ok = false;
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148 } else if (!Tcl_CommandComplete(argv[2])) {
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149 CdlParse::report_error(interp, std::string("Invalid property list for cdl_interface ") + argv[1]);
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150 ok = false;
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151 } else if (0 != toplevel->lookup(argv[1])) {
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152 // FIXME: interfaces can be generated implicitly because of an
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153 // unresolved implements property. This code should look for
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154 // an existing auto-generated interface object and replace it
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155 // if necessary.
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156 CdlParse::report_error(interp, std::string("Interface ") + argv[1] + " cannot be loaded.\n" +
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157 " The name is already in use.");
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158 ok = false;
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159 } else {
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160 new_interface = new CdlInterfaceBody(argv[1], false);
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161 toplevel->add_node(loadable, parent, new_interface);
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162 }
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163
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164 if (!ok) {
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165 // Just because this component cannot be created, that is no
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166 // reason to abort the whole parsing process.
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167 CYG_REPORT_RETVAL(TCL_OK);
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168 return TCL_OK;
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169 }
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170 } catch(std::bad_alloc e) {
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171 interp->set_result(CdlParse::get_diagnostic_prefix(interp) + "Out of memory.");
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172 result = TCL_ERROR;
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173 } catch(CdlParseException e) {
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174 interp->set_result(e.get_message());
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175 result = TCL_ERROR;
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176 } catch(...) {
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177 interp->set_result(CdlParse::get_diagnostic_prefix(interp) + "internal error, unexpected C++ exception.");
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178 result = TCL_ERROR;
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179 }
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180 if (TCL_OK != result) {
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181 CYG_REPORT_RETVAL(result);
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182 return result;
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183 }
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184
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185 // At this stage new_interface has been created and added to the
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186 // hierarchy. The main work now is to add the properties.
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187
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188 // Push the option as the current node early on. This aids
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189 // diagnostics.
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190 CdlNode old_node = interp->push_node(new_interface);
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191
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192 // Declare these outside the scope of the try statement, to allow
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193 // goto calls for the error handling.
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194 std::string tcl_result;
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195 std::vector<CdlInterpreterCommandEntry> new_commands;
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196 std::vector<CdlInterpreterCommandEntry>* old_commands = 0;
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197 static CdlInterpreterCommandEntry commands[] =
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198 {
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199 CdlInterpreterCommandEntry("", 0)
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200 };
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201 int i;
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202
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203 // All parsing errors may result in an exception, under the control of
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204 // application code. This exception must not pass through the Tcl interpreter.
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205 try {
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206
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207 for (i = 0; 0 != commands[i].command; i++) {
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208 new_commands.push_back(commands[i]);
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209 }
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210 CdlDefinableBody::add_property_parsers(new_commands);
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211 CdlBuildableBody::add_property_parsers(new_commands);
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212 CdlParentableBody::add_property_parsers(new_commands);
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213 CdlValuableBody::add_property_parsers(new_commands);
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214 CdlUserVisibleBody::add_property_parsers(new_commands);
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215 CdlNodeBody::add_property_parsers(new_commands);
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216
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217 // Now evaluate the body. If an error occurs then typically
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218 // this will be reported via CdlParse::report_error(),
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219 // but any exceptions will have been intercepted and
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220 // turned into a Tcl error.
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221 old_commands = interp->push_commands(new_commands);
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222 result = interp->eval(argv[2], tcl_result);
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223 interp->pop_commands(old_commands);
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224
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225 if (TCL_OK == result) {
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226 // Even if there were errors, they were not fatal. There may
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227 // now be a number of properties for this option, and some
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228 // validation should take place. Start with the base classes.
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229 new_interface->CdlNodeBody::check_properties(interp);
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230 new_interface->CdlUserVisibleBody::check_properties(interp);
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231 new_interface->CdlValuableBody::check_properties(interp);
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232 new_interface->CdlParentableBody::check_properties(interp);
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233 new_interface->CdlBuildableBody::check_properties(interp);
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234 new_interface->CdlDefinableBody::check_properties(interp);
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235
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236 // A few properties do not make sense for interfaces.
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237 // Start with the value-related ones. Interfaces always
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238 // have the flavor Data.
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239 if (new_interface->has_property(CdlPropertyId_Flavor)) {
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240 CdlParse::report_error(interp, "An interface should not have a `flavor' property.");
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241 }
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242 // Interfaces cannot be modified directly by the user, so
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243 // there is no point in entry_proc, check_proc, dialog or
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244 // wizard
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245 if (new_interface->has_property(CdlPropertyId_EntryProc)) {
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246 CdlParse::report_error(interp, "An interface should not have an `entry_proc' property.");
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247 }
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248 if (new_interface->has_property(CdlPropertyId_CheckProc)) {
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249 CdlParse::report_error(interp, "An interface should not have a `check_proc' property.");
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250 }
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251 if (new_interface->has_property(CdlPropertyId_Dialog)) {
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252 CdlParse::report_error(interp, "An interface should not have a `dialog' property.");
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253 }
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254 if (new_interface->has_property(CdlPropertyId_Wizard)) {
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255 CdlParse::report_error(interp, "An interface should not have a `wizard' property.");
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256 }
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257 // Calculated does not make sense, an interface is implicitly calculated
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258 // Nor does default_value.
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259 if (new_interface->has_property(CdlPropertyId_Calculated)) {
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260 CdlParse::report_error(interp, "An interface should not have a `calculated' property.");
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261 }
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262 if (new_interface->has_property(CdlPropertyId_DefaultValue)) {
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263 CdlParse::report_error(interp, "An interface should not have a `default_value' property.");
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264 }
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265 // active_if might make sense, as a way of controlling
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266 // whether or not a #define will be generated.
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267
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268 // legal_values, requires and implements are all sensible
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269 // properties for an interface.
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270
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271 // group may or may not make sense, allow it for now.
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272
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273 // For the uservisible base class, allow all of display,
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274 // doc and description. At worst these are harmless
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275
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276 // For the parentable base class, allow parent. Again this
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277 // is harmless.
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278
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279 // Also allow all of the definable and buildable
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280 // properties.
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281 }
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282 } catch (std::bad_alloc e) {
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283 // Errors at this stage should be reported via Tcl, not via C++.
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284 // However there is no point in continuing with the parsing operation,
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285 // just give up.
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286 interp->set_result(CdlParse::get_diagnostic_prefix(interp) + "Out of memory.");
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287 result = TCL_ERROR;
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288 } catch (CdlParseException e) {
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289 interp->set_result(e.get_message());
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290 result = TCL_ERROR;
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291 } catch(...) {
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292 interp->set_result(CdlParse::get_diagnostic_prefix(interp) + "internal error, unexpected C++ exception.");
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293 result = TCL_ERROR;
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294 }
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295
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296 // Restore the interpreter to its prior state.
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297 interp->pop_node(old_node);
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298 if (0 != old_commands) {
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299 interp->pop_commands(old_commands);
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300 }
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301
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302 CYG_REPORT_RETVAL(result);
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303 return result;
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304 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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305
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306 //}}}
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307 //{{{ Persistence support
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308
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309 // ----------------------------------------------------------------------------
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310
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311 void
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312 CdlInterfaceBody::initialize_savefile_support(CdlToplevel toplevel)
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313 {
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314 CYG_REPORT_FUNCNAME("CdlInterface::initialize_savefile_support");
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315
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316 toplevel->add_savefile_command("cdl_interface", 0, &savefile_interface_command);
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317 CdlValuableBody::initialize_savefile_support(toplevel, "cdl_interface");
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318
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319 CYG_REPORT_RETURN();
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320 }
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321
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322 void
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323 CdlInterfaceBody::save(CdlInterpreter interp, Tcl_Channel chan, int indentation, bool minimal)
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324 throw(CdlInputOutputException, std::bad_alloc)
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325 {
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326 CYG_REPORT_FUNCNAME("CdlInterface::save");
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327 CYG_REPORT_FUNCARG5XV(this, interp, chan, indentation, minimal);
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328 CYG_PRECONDITION_THISC();
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329 CYG_PRECONDITION_CLASSC(interp);
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330
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331 // Interfaces contain only calculated data, so for a minimal save
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332 // there is no point in storing any of the data.
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333 if (!minimal || this->has_additional_savefile_information()) {
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334 // Start with the UserVisible data, which will result in a suitable set
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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335 // of comments before the package definition itself.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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336 this->CdlUserVisibleBody::save(interp, chan, indentation, minimal);
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337
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338 // Now output the line "cdl_interface <name> {"
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339 // The name is guaranteed to be a valid C preprocessor symbol, so it
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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340 // is not going to need any quoting.
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341 std::string data = std::string(indentation, ' ') + "cdl_interface " + get_name() + " {\n";
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342
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343 // Start with details of everything that implements this interface.
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344 if (!minimal) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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345 const std::vector<CdlReferrer>& referrers = this->get_referrers();
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346 std::vector<CdlReferrer>::const_iterator ref_i;
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347 for (ref_i = referrers.begin(); ref_i != referrers.end(); ref_i++) {
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348 CdlNode node = ref_i->get_source();
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349 CdlProperty prop = ref_i->get_source_property();
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350
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351 CdlValuable valuable = dynamic_cast<CdlValuable>(node);
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352 if ((0 != valuable) && (CdlPropertyId_Implements == prop->get_property_name())) {
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353 data += std::string(indentation, ' ') + " # Implemented by " + valuable->get_name() + ", " +
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354 (valuable->is_active() ? "active" : "inactive") + ", " +
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355 (valuable->is_enabled() ? "enabled" : "disabled") + '\n';
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356 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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357 }
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358 }
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359 interp->write_data(chan, data);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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360
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361 // Deal with the value
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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362 this->CdlValuableBody::save(interp, chan, indentation + 4, false, minimal);
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363
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364 // Close the cdl_interface body. A blank line is added here.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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365 data = "};\n\n";
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366 interp->write_data(chan, data);
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367 }
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368
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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369 CYG_REPORT_RETURN();
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370 }
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371
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372 int
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373 CdlInterfaceBody::savefile_interface_command(CdlInterpreter interp, int argc, char** argv)
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374 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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375 CYG_REPORT_FUNCNAMETYPE("CdlInterface::savefile_interface_command", "result %d");
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376 CYG_PRECONDITION_CLASSC(interp);
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377
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378 int result = TCL_OK;
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diff changeset
379 CdlToplevel toplevel = interp->get_toplevel();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
380 CYG_ASSERT_CLASSC(toplevel);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
381
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
382 std::vector<CdlInterpreterCommandEntry> subcommands;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
383 std::vector<CdlInterpreterCommandEntry>* toplevel_commands = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
384 CdlNode old_node = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
385
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
386 try {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
387
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
388 if (3 != argc) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
389 CdlParse::report_error(interp, "Invalid cdl_interface command in savefile, expecting two arguments.");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
390 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
391
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
392 CdlNode current_node = toplevel->lookup(argv[1]);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
393 if (0 == current_node) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
394 // FIXME: save value in limbo
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
395 CdlParse::report_error(interp,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
396 std::string("The savefile contains a cdl_interface command for an unknown interface `")
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
397 + argv[1] + "'");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
398 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
399 toplevel->get_savefile_subcommands("cdl_interface", subcommands);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
400 toplevel_commands = interp->push_commands(subcommands);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
401 old_node = interp->push_node(current_node);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
402
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
403 std::string tcl_result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
404 result = interp->eval(argv[2], tcl_result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
405
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
406 interp->pop_commands(toplevel_commands);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
407 toplevel_commands = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
408 interp->pop_node(old_node);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
409 old_node = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
410 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
411 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
412 } catch(...) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
413 if (0 != old_node) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
414 interp->pop_node(old_node);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
415 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
416 if (0 != toplevel_commands) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
417 interp->pop_commands(toplevel_commands);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
418 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
419 throw;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
420 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
421
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
422 CYG_REPORT_RETVAL(result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
423 return result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
424 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
425
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
426 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
427 //{{{ check_this()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
428
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
429 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
430
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
431 bool
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
432 CdlInterfaceBody::check_this(cyg_assert_class_zeal zeal) const
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
433 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
434 if (CdlInterfaceBody_Magic != cdlinterfacebody_cookie) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
435 return false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
436 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
437 CYGDBG_MEMLEAK_CHECKTHIS();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
438 return CdlNodeBody::check_this(zeal) &&
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
439 CdlUserVisibleBody::check_this(zeal) &&
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
440 CdlValuableBody::check_this(zeal) &&
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
441 CdlParentableBody::check_this(zeal) &&
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
442 CdlBuildableBody::check_this(zeal) &&
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
443 CdlDefinableBody::check_this(zeal);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
444 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
445
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
446 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
447 //{{{ recalculate()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
448
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
449 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
450 // There has been a change in the configuration which may affect the value
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
451 // of an interface. This can happen for a variety of reasons. For simplicity
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
452 // the entire value is just recalculated, with no attempt at optimisation.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
453 // This may have to change in future.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
454
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
455 void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
456 CdlInterfaceBody::recalculate(CdlTransaction transaction)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
457 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
458 CYG_REPORT_FUNCNAME("CdlInterface::recalculate");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
459
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
460 const CdlValue& old_value = transaction->get_whole_value(this);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
461
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
462 cdl_int count = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
463 std::vector<CdlValuable> implementers;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
464 std::vector<CdlValuable>::const_iterator valuable_i;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
465 this->get_implementers(implementers);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
466 for (valuable_i = implementers.begin(); valuable_i != implementers.end(); valuable_i++) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
467 if (transaction->is_active(*valuable_i)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
468 const CdlValue& implementer_value = transaction->get_whole_value(*valuable_i);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
469 if (implementer_value.is_enabled()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
470 count++;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
471 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
472 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
473 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
474 if (count != old_value.get_integer_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
475 CdlValue new_value = old_value;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
476 new_value.set_integer_value(count, CdlValueSource_Default);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
477 transaction->set_whole_value(this, old_value, new_value);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
478 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
479
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
480 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
481 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
482
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
483 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
484 //{{{ misc
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
485
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
486 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
487
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
488 bool
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
489 CdlInterfaceBody::is_modifiable() const
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
490 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
491 CYG_REPORT_FUNCNAME("CdlInterface::is_modifiable (false)");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
492 CYG_PRECONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
493 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
494 return false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
495 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
496
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
497 std::string
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
498 CdlInterfaceBody::get_class_name() const
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
499 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
500 CYG_REPORT_FUNCNAME("CdlInterface::get_class_name");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
501 CYG_PRECONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
502 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
503 return "interface";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
504 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
505
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
506 void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
507 CdlInterfaceBody::get_implementers(std::vector<CdlValuable>& implementers) const
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
508 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
509 CYG_REPORT_FUNCNAME("CdlInterface::get_implementers");
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510 CYG_PRECONDITION_THISC();
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511
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512 const std::vector<CdlReferrer>& referrers = this->get_referrers();
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513 std::vector<CdlReferrer>::const_iterator ref_i;
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514 for (ref_i = referrers.begin(); ref_i != referrers.end(); ref_i++) {
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515 CdlNode node = ref_i->get_source();
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516 CdlProperty prop = ref_i->get_source_property();
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517
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518 CdlValuable valuable = dynamic_cast<CdlValuable>(node);
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519 if ((0 != valuable) && (CdlPropertyId_Implements == prop->get_property_name())) {
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520 implementers.push_back(valuable);
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521 }
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522 }
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523
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524 CYG_REPORT_RETURN();
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525 }
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526
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527 // Interfaces are somewhat peculiar, in that they can be defined implicitly
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528 // simply by occurring in an "implements" property, or explicitly inside
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529 // a CDL script. Worse, they can switch between these two states when
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530 // loadables are added or removed.
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531
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532 bool
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533 CdlInterfaceBody::was_generated() const
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534 {
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535 CYG_REPORT_FUNCNAMETYPE("CdlInterface::was_generated", "result %d");
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536 CYG_REPORT_FUNCARG1XV(this);
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537 CYG_PRECONDITION_THISC();
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538
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539 bool result = this->generated;
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540 CYG_REPORT_RETVAL(result);
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541 return result;
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542 }
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543
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544 //}}}