fix audio clock restore, provide XMLNode::property (string) and speed up the property methods by not scanning the map twice. sorry about the recompile

git-svn-id: svn://localhost/ardour2/trunk@1286 d708f5d6-7413-0410-9779-e7cbd77b26cf

2 files changed, 20 insertions, 3 deletions

diff --git a/libs/pbd/pbd/xml++.h b/libs/pbd/pbd/xml++.h
index 70e231e717..bf26a6f685 100644
--- a/libs/pbd/pbd/xml++.h
+++ b/libs/pbd/pbd/xml++.h
@@ -95,8 +95,11 @@ public:
 
   const XMLPropertyList & properties() const { return _proplist; };
   XMLProperty *property(const char * );
+  XMLProperty *property(const std::string&);
   const XMLProperty *property(const char * n) const
 	{ return ((XMLNode *) this)->property(n); };
+  const XMLProperty *property(const std::string& ns) const
+	{ return ((XMLNode *) this)->property(ns); };
   XMLProperty *add_property(const char *, const string &);
   XMLProperty *add_property(const char *, const char * = "");
 
diff --git a/libs/pbd/xml++.cc b/libs/pbd/xml++.cc
index 8d783d59f2..5507f658e9 100644
--- a/libs/pbd/xml++.cc
+++ b/libs/pbd/xml++.cc
@@ -289,11 +289,25 @@ XMLProperty *
 XMLNode::property(const char * n)
 {
 	string ns(n);
-	if (_propmap.find(ns) == _propmap.end()) {
-		return 0;
+	map<string,XMLProperty*>::iterator iter;
+
+	if ((iter = _propmap.find(ns)) != _propmap.end()) {
+		return iter->second;
+	}
+
+	return 0;
+}
+
+XMLProperty *
+XMLNode::property(const string & ns)
+{
+	map<string,XMLProperty*>::iterator iter;
+
+	if ((iter = _propmap.find(ns)) != _propmap.end()) {
+		return iter->second;
 	}
 	
-	return _propmap[ns];
+	return 0;
 }
 
 XMLProperty *