slightly improve the speed reading the manufacturers list

2 files changed, 214 insertions, 29 deletions

diff --git a/libopie2/opienet/omanufacturerdb.cpp b/libopie2/opienet/omanufacturerdb.cpp
index 595633d..f61270b 100644
--- a/libopie2/opienet/omanufacturerdb.cpp
+++ b/libopie2/opienet/omanufacturerdb.cpp
@@ -79,25 +79,34 @@ OManufacturerDB::OManufacturerDB()
     {
         odebug << "OManufacturerDB: found manufacturer list in " << filename << oendl;
         QTextStream s( &file );
         QString addr;
         QString manu;
         QString extManu;
+        #ifdef OPIE_IMPROVE_GUI_LATENCY
+        int counter = 0;
+        #endif
         while (!s.atEnd())
         {
             s >> addr;
             s >> manu;
             s >> extManu;
 
             manufacturers.insert( addr, manu );
             manufacturersExt.insert( addr, extManu );
-            odebug << "OmanufacturerDB: parse '" << addr << "' as '" << manu << "' (" << extManu << ")" << oendl;
+            // odebug << "OmanufacturerDB: parse '" << addr << "' as '" << manu << "' (" << extManu << ")" << oendl;
             #ifdef OPIE_IMPROVE_GUI_LATENCY
-            if ( qApp ) qApp->processEvents();
+            counter++;
+            if ( counter == 50 )
+            {
+                qApp->processEvents();
+                counter = 0;
+            }
             #endif
         }
+        odebug << "OManufacturerDB: manufacturer list completed." << oendl;
     }
 }
 
 
 OManufacturerDB::~OManufacturerDB()
 {
diff --git a/libopie2/tools/regen.py b/libopie2/tools/regen.py
index 3779896..89385e1 100755
--- a/libopie2/tools/regen.py
+++ b/libopie2/tools/regen.py
@@ -1,29 +1,34 @@
 #!/usr/bin/env python
 
-#
-# regenerate ioctl_table.h
-#
+"""Regenerate C++ mapping classes"""
 
-import sys
-import os
-result = os.popen( 'find /usr/include -name "*.h" |xargs grep -h SIOC|grep 0x' ).readlines()
+#---------------------------------------------------------------------------#
+#                                                                           #
+#---------------------------------------------------------------------------#
+
+def regenDebugMapper( basename ):
+    """
+    Debug Mapper - maps ioctl numbers to names, e.g. 0x4x5a -> SIOCGIWNAME
+    """
+
+    result = os.popen( 'find /usr/include -name "*.h" |xargs grep -h SIOC|grep 0x' ).readlines()
 
-try:
-    tablehfile = file( sys.argv[1]+".h", "w" )
-except:
-    tablehfile = sys.stdout
+    try:
+        tablehfile = file( basename+".h", "w" )
+    except:
+        tablehfile = sys.stdout
 
-try:
-    tablecfile = file( sys.argv[1]+".cpp", "w" )
-except:
-    tablecfile = sys.stdout
+    try:
+        tablecfile = file( basename+".cpp", "w" )
+    except:
+        tablecfile = sys.stdout
 
-print >>tablehfile,"""
+    print >>tablehfile,"""
 /*
- * debug value mapper - generated by regen.py - (C) Michael 'Mickey' Lauer <mickey@vanille.de>
+ * debug value mapper - generated by %s - (C) Michael 'Mickey' Lauer <mickey@vanille.de>
  */
 
 #ifndef DEBUGMAPPER_H
 #define DEBUGMAPPER_H
 
 #include <qstring.h>
@@ -40,38 +45,38 @@ class DebugMapper
     const QString& map( int value ) const;
   private:
     IntStringMap _map;
 };
 
 #endif
-"""
+""" % sys.argv[0]
 
-print >>tablecfile,"""
+    print >>tablecfile,"""
 /*
- * debug value mapper - generated by regen.py - (C) Michael 'Mickey' Lauer <mickey@vanille.de>
+ * debug value mapper - generated by %s - (C) Michael 'Mickey' Lauer <mickey@vanille.de>
  */
 
 #include <opie2/odebug.h>
 
 #include "%s"
 
 DebugMapper::DebugMapper()
 {
     odebug << "DebugMapper::DebugMapper()" << oendl;
 
-""" % (tablehfile.name)
+""" % ( sys.argv[0], tablehfile.name )
 
-for line in result:
-    l = line.split()
-    if not l[0].startswith( "#define" ) or not l[2].startswith( "0x" ):
-        print >>sys.stderr, "can't parse line: %s" % l
-        continue
-    print >>tablecfile, "    _map.insert( %s, new QString(\"%s\") );" % ( l[2], l[1] )
+    for line in result:
+        l = line.split()
+        if not l[0].startswith( "#define" ) or not l[2].startswith( "0x" ):
+            print >>sys.stderr, "can't parse line: %s" % l
+            continue
+        print >>tablecfile, "    _map.insert( %s, new QString(\"%s\") );" % ( l[2], l[1] )
 
 
-print >>tablecfile,"""
+    print >>tablecfile,"""
 };
 
 
 DebugMapper::~DebugMapper()
 {
     odebug << "DebugMapper::~DebugMapper()" << oendl;
@@ -91,6 +96,177 @@ const QString& DebugMapper::map( int value ) const
     {
         return *result;
     }
 }
 
 """
+
+#---------------------------------------------------------------------------#
+#                                                                           #
+#---------------------------------------------------------------------------#
+
+def regenManufacturerDB( basename ):
+
+    try:
+        h = file( basename+".h", "w" )
+    except:
+        h = sys.stdout
+
+    try:
+        cpp = file( basename+".cpp", "w" )
+    except:
+        cpp = sys.stdout
+
+    print >>h,"""
+#ifndef OMANUFACTURERDB_H
+#define OMANUFACTURERDB_H
+
+#include <qmap.h>
+
+/**
+ * @brief A Ethernet card vendor database.
+ *
+ * This class encapsulates the lookup of Ethernet vendor given a
+ * certain Mac Address. Only the first three bytes define the vendor.
+ */
+class OManufacturerDB
+{
+  public:
+    /**
+     * @returns the one-and-only @ref OManufacturerDB instance.
+     */
+    static OManufacturerDB* instance();
+    /**
+     * @returns the short manufacturer string given a @a macaddr.
+     */
+    const QString& lookup( const QString& macaddr ) const;
+    /**
+     * @returns the enhanced manufacturer string given a @a macaddr.
+     */
+    const QString& lookupExt( const QString& macaddr ) const;
+
+  protected:
+    OManufacturerDB();
+    virtual ~OManufacturerDB();
+
+  private:
+    QMap<QString, QString> manufacturers;
+    QMap<QString, QString> manufacturersExt;
+    static OManufacturerDB* _instance;
+};
+
+#endif
+"""
+
+    print >>cpp,"""
+#include "%s.h"
+
+/* OPIE CORE */
+#include <opie2/odebug.h>
+
+/* QT */
+#include <qapplication.h>
+#include <qstring.h>
+
+#define OPIE_IMPROVE_GUI_LATENCY 1
+
+OManufacturerDB* OManufacturerDB::_instance = 0;
+
+OManufacturerDB* OManufacturerDB::instance()
+{
+    if ( !OManufacturerDB::_instance )
+    {
+        odebug << "OManufacturerDB::instance(): creating OManufacturerDB..." << oendl;
+       _instance = new OManufacturerDB();
+    }
+    return _instance;
+}
+
+
+OManufacturerDB::OManufacturerDB()
+{
+""" % basename
+
+    count = 0
+    for line in sys.stdin:
+        if line[0] == "#":  # skip comments
+            continue
+        #print line.strip()
+        entries = line.strip().split()
+        #print "number of entries =", len( entries )
+        #print entries
+        if len( entries ) < 2:
+            continue
+        elif len( entries ) == 2:
+            count += 1
+            print "2-line detected."
+            print >>cpp, '    manufacturers.insert( "%s", "%s" );' % ( entries[0], entries[1] )
+            print >>cpp, '    manufacturersExt.insert( "%s", "%s" );' % ( entries[0], entries[1] )
+        elif len( entries ) > 2:
+            count += 1
+            print "3-line detected."
+            print >>cpp, '    manufacturers.insert( "%s", "%s" );' % ( entries[0], entries[1] )
+            print >>cpp, '    manufacturersExt.insert( "%s", "%s" );' % ( entries[0], "_".join( entries[3:] ) )
+        else:
+            assert( false )
+        if not (count % 1000):
+            print >>cpp,"""
+#ifdef OPIE_IMPROVE_GUI_LATENCY
+    if (qApp) qApp->processEvents();
+#endif
+"""
+    print "successfully parsed", count, "manufacturer lines"
+    print >>cpp,"""
+}
+
+
+OManufacturerDB::~OManufacturerDB()
+{
+}
+
+
+const QString& OManufacturerDB::lookup( const QString& macaddr ) const
+{
+    return manufacturers[macaddr.upper().left(8)];
+}
+
+
+const QString& OManufacturerDB::lookupExt( const QString& macaddr ) const
+{
+    QMap<QString,QString>::ConstIterator it = manufacturersExt.find( macaddr.upper().left(8) );
+    return it == manufacturersExt.end() ? lookup( macaddr ) : *it;
+}
+"""
+
+#---------------------------------------------------------------------------#
+#                                                                           #
+#---------------------------------------------------------------------------#
+
+#---------------------------------------------------------------------------#
+#                                                                           #
+#---------------------------------------------------------------------------#
+
+#---------------------------------------------------------------------------#
+#                                                                           #
+#---------------------------------------------------------------------------#
+
+import sys
+import os
+import copy
+
+if __name__ == "__main__":
+    if len( sys.argv ) != 3:
+        print """
+Usage: %s <table> <basename>
+
+Available tables: %s
+""" % ( sys.argv[0], [ str(k)[5:] for k in copy.copy( locals() ) if k.startswith( "regen" ) ] )
+        sys.exit( -1 )
+
+    try:
+        func = locals()["regen%s" % sys.argv[1]]
+    except KeyError:
+        print "Table '%s' unknown." % sys.argv[1]
+        sys.exit( -1 )
+    else:
+        func( sys.argv[2] )
+        sys.exit( 0 )
\ No newline at end of file