1 files changed, 176 insertions, 0 deletions
diff --git a/src/intersim/config_utils.cpp b/src/intersim/config_utils.cpp
new file mode 100644
index 0000000..a62ea05
--- /dev/null
+++ b/src/intersim/config_utils.cpp
@@ -0,0 +1,176 @@
+#include "booksim.hpp"
+#include <iostream>
+#include <stdlib.h>
+#include <cstring>
+
+#include "config_utils.hpp"
+
+Configuration *Configuration::theConfig = 0;
+
+Configuration::Configuration( )
+{
+   theConfig = this;
+   _config_file = 0;
+}
+
+void Configuration::AddStrField( const string &field, const string &value )
+{
+   _str_map[field] = strdup( value.c_str( ) );
+}
+
+void Configuration::Assign( const string &field, const string &value )
+{
+   map<string,char *>::const_iterator match;
+
+   match = _str_map.find( field );
+   if ( match != _str_map.end( ) ) {
+      free( _str_map[field] );
+      _str_map[field] = strdup( value.c_str( ) );
+   } else {
+      string errmsg = "Unknown field ";
+      errmsg += field;
+
+      ParseError( errmsg, 0 );
+   }
+}
+
+void Configuration::Assign( const string &field, unsigned int value )
+{
+   map<string,unsigned int>::const_iterator match;
+
+   match = _int_map.find( field );
+   if ( match != _int_map.end( ) ) {
+      _int_map[field] = value;
+   } else {
+      string errmsg = "Unknown field ";
+      errmsg += field;
+
+      ParseError( errmsg, 0 );
+   }
+}
+
+void Configuration::Assign( const string &field, double value )
+{
+   map<string,double>::const_iterator match;
+
+   match = _float_map.find( field );
+   if ( match != _float_map.end( ) ) {
+      _float_map[field] = value;
+   } else {
+      string errmsg = "Unknown field ";
+      errmsg += field;
+
+      ParseError( errmsg, 0 );
+   }
+}
+
+void Configuration::GetStr( const string &field, string &value, const string &def ) const
+{
+   map<string,char *>::const_iterator match;
+
+   match = _str_map.find( field );
+   if ( match != _str_map.end( ) ) {
+      value = match->second;
+   } else {
+      value = def;
+   }
+}
+
+unsigned int Configuration::GetInt( const string &field, unsigned int def ) const
+{
+   map<string,unsigned int>::const_iterator match;
+   unsigned int r = def;
+
+   match = _int_map.find( field );
+   if ( match != _int_map.end( ) ) {
+      r = match->second;
+   }
+
+   return r;
+}
+
+double Configuration::GetFloat( const string &field, double def ) const
+{  
+   map<string,double>::const_iterator match;
+   double r = def;
+
+   match = _float_map.find( field );
+   if ( match != _float_map.end( ) ) {
+      r = match->second;
+   }
+
+   return r;
+}
+
+void Configuration::Parse( const string& filename )
+{
+   if ( ( _config_file = fopen( filename.c_str( ), "r" ) ) == 0 ) {
+      cerr << "Could not open configuration file " << filename << endl;
+      exit( -1 );
+   }
+
+   configparse( );
+
+   fclose( _config_file );
+   _config_file = 0;
+}
+
+void Configuration::Parse( const char* filename )
+{
+   if ( ( _config_file = fopen( filename , "r" ) ) == 0 ) {
+      cerr << "Could not open configuration file " << filename << endl;
+      exit( -1 );
+   }
+
+   configparse( );
+
+   fclose( _config_file );
+   _config_file = 0;
+}
+
+
+int Configuration::Input( char *line, int max_size )
+{
+   int length = 0;
+
+   if ( _config_file ) {
+      length = fread( line, 1, max_size, _config_file );
+   }
+
+   return length;
+}
+
+void Configuration::ParseError( const string &msg, unsigned int lineno ) const
+{
+   if ( lineno ) {
+      cerr << "Parse error on line " << lineno << " : " << msg << endl;
+   } else {
+      cerr << "Parse error : " << msg << endl;
+   }
+
+   exit( -1 );
+}
+
+Configuration *Configuration::GetTheConfig( )
+{
+   return theConfig;
+}
+
+//============================================================
+
+int config_input( char *line, int max_size )
+{
+   return Configuration::GetTheConfig( )->Input( line, max_size );
+}
+
+bool ParseArgs( Configuration *cf, int argc, char **argv )
+{
+   bool rc = false;
+
+   if ( argc > 1 ) {
+      cf->Parse( argv[1] );
+      rc = true;
+   }
+
+   return rc;
+}