X-Git-Url: http://g0dil.de/git?a=blobdiff_plain;f=senf%2FPackets%2FPacketParser.cci;h=db3939d8d9b3937d7511f8b51c2eecbbdf6cefce;hb=78a6e233083efa63a9cd0684a92abc64202a9ee7;hp=510c2a61b2b0a6715be48c34c7f6086989e566d8;hpb=601d1f509f5bb24df167a4dd5a20da67a0af9af8;p=senf.git

diff --git a/senf/Packets/PacketParser.cci b/senf/Packets/PacketParser.cci
index 510c2a6..db3939d 100644
--- a/senf/Packets/PacketParser.cci
+++ b/senf/Packets/PacketParser.cci
@@ -49,15 +49,36 @@ prefix_ senf::PacketParserBase::data_iterator senf::PacketParserBase::end()
     return data_->end();
 }
 
+prefix_ senf::PacketParserBase::ParserProtector::ParserProtector(PacketParserBase const * p)
+    : safe_i_( *p), parser_(p)
+{}
+
+prefix_ senf::PacketParserBase::ParserProtector::ParserProtector(ParserProtector const & other_)
+    : safe_i_( *other_.parser_), parser_(other_.parser_)
+{
+    other_.parser_ = 0;
+}
+
+prefix_ senf::PacketParserBase::ParserProtector::~ParserProtector()
+{
+    if (parser_) const_cast<PacketParserBase *>(parser_)->i_ = safe_i_;
+}
+
 // protected members
 
+prefix_ senf::PacketParserBase::ParserProtector senf::PacketParserBase::protect()
+    const
+{
+    return ParserProtector(this);
+}
+
 prefix_ bool senf::PacketParserBase::check(size_type size)
     const
 {
     return size <= size_type(std::distance(i(),end()));
 }
 
-prefix_ void senf::PacketParserBase::validate(size_type size) 
+prefix_ void senf::PacketParserBase::validate(size_type size)
    const
 {
     if (! check(size))
@@ -68,7 +89,7 @@ prefix_ senf::PacketParserBase::PacketParserBase(data_iterator i, state_type s)
     : i_ (i), data_ (s)
 {}
 
-prefix_ senf::PacketParserBase::PacketParserBase(data_iterator i, state_type s, 
+prefix_ senf::PacketParserBase::PacketParserBase(data_iterator i, state_type s,
                                                  size_type size)
     : i_ (i), data_ (s)
 {