From 1d31f66fcc9601db06f5fbdd158c16bc3180f0fd Mon Sep 17 00:00:00 2001
From: Gordon Sim <gsim@apache.org>
Date: Wed, 7 Nov 2007 20:55:35 +0000
Subject: Fix for QPID-639: c++ now includes sizes for all structs (enabled the
 same in python & java)

git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk@592895 13f79535-47bb-0310-9956-ffa450edef68
---
 qpid/cpp/rubygen/templates/structs.rb              | 61 +++++++++++++++++++---
 qpid/cpp/src/qpid/framing/AMQHeaderBody.cpp        |  2 +-
 qpid/cpp/src/qpid/framing/AMQHeaderBody.h          | 19 +++++--
 qpid/cpp/src/qpid/framing/StructHelper.h           |  4 +-
 .../qpidity/transport/codec/AbstractDecoder.java   |  2 +-
 .../qpidity/transport/codec/AbstractEncoder.java   |  2 +-
 qpid/python/qpid/codec.py                          |  4 +-
 7 files changed, 77 insertions(+), 17 deletions(-)

diff --git a/qpid/cpp/rubygen/templates/structs.rb b/qpid/cpp/rubygen/templates/structs.rb
index d67a8925c4..edbadb01f6 100644
--- a/qpid/cpp/rubygen/templates/structs.rb
+++ b/qpid/cpp/rubygen/templates/structs.rb
@@ -260,7 +260,7 @@ EOS
         genl "}"
       end
       genl "bool #{s.cppname}::has#{f.name.caps}() const { return flags & #{flag_mask(s, i)}; }"
-      genl "void #{s.cppname}::clear#{f.name.caps}() { flags &= ~#{flag_mask(s, i)}; }"
+      genl "void #{s.cppname}::clear#{f.name.caps}Flag() { flags &= ~#{flag_mask(s, i)}; }"
     end
     genl ""
   end
@@ -275,9 +275,11 @@ EOS
     if (f.cpptype.name == "FieldTable")
       genl "#{f.cpptype.name}& get#{f.name.caps}();"
     end
-    #extra 'accessors' for packed fields:
-    genl "bool has#{f.name.caps}() const;";
-    genl "void clear#{f.name.caps}();";
+    if (f.domain.type_ != "bit")
+      #extra 'accessors' for packed fields:
+      genl "bool has#{f.name.caps}() const;"
+      genl "void clear#{f.name.caps}Flag();"
+    end
   end
 
   def define_accessors(f)
@@ -370,7 +372,10 @@ EOS
   gen <<EOS
     void encode(Buffer&) const;
     void decode(Buffer&, uint32_t=0);
+    void encodeStructBody(Buffer&) const;
+    void decodeStructBody(Buffer&, uint32_t=0);
     uint32_t size() const;
+    uint32_t bodySize() const;
     void print(std::ostream& out) const;
 }; /* class #{classname} */
 
@@ -394,7 +399,7 @@ EOS
         define_packed_accessors(s)
       end
       gen <<EOS
-void #{classname}::encode(Buffer& #{buffer}) const
+void #{classname}::encodeStructBody(Buffer& #{buffer}) const
 {
 EOS
       if (execution_header?(s))
@@ -409,7 +414,24 @@ EOS
       gen <<EOS
 }
 
-void #{classname}::decode(Buffer& #{buffer}, uint32_t /*size*/)
+void #{classname}::encode(Buffer& buffer) const
+{
+EOS
+      indent {
+        if (s.kind_of? AmqpStruct)
+          if (s.type_)
+            genl "buffer.put#{s.size.caps}(bodySize() + 2/*typecode*/);" if s.size
+            genl "buffer.putShort(TYPE);" 
+          else
+            genl "buffer.put#{s.size.caps}(size());" if s.size
+          end
+        end
+        genl "encodeStructBody(buffer);"
+      }
+      gen <<EOS
+}
+
+void #{classname}::decodeStructBody(Buffer& #{buffer}, uint32_t /*size*/)
 {
 EOS
       if (execution_header?(s))
@@ -424,7 +446,20 @@ EOS
       gen <<EOS
 }
 
-uint32_t #{classname}::size() const
+void #{classname}::decode(Buffer& buffer, uint32_t /*size*/)
+{
+EOS
+      indent {
+        if (s.kind_of? AmqpStruct)
+          genl "buffer.get#{s.size.caps}();" if s.size
+          genl "if (TYPE != buffer.getShort()) throw InternalErrorException(\"Bad type code for struct\");" if s.type_
+        end
+        genl "decodeStructBody(buffer);"
+      }
+      gen <<EOS
+}
+
+uint32_t #{classname}::bodySize() const
 {
     uint32_t total = 0;
 EOS
@@ -441,6 +476,18 @@ EOS
     return total;
 }
 
+uint32_t #{classname}::size() const
+{
+    uint32_t total = bodySize();
+EOS
+        if (s.kind_of? AmqpStruct)
+          genl "total += #{SizeMap[s.size]}/*size field*/;" if s.size
+          genl "total += 2/*typecode*/;" if s.type_
+        end
+      gen <<EOS
+    return total;
+}
+
 void #{classname}::print(std::ostream& out) const
 {
     out << "{#{classname}: ";
diff --git a/qpid/cpp/src/qpid/framing/AMQHeaderBody.cpp b/qpid/cpp/src/qpid/framing/AMQHeaderBody.cpp
index 7083709fde..93568f5f46 100644
--- a/qpid/cpp/src/qpid/framing/AMQHeaderBody.cpp
+++ b/qpid/cpp/src/qpid/framing/AMQHeaderBody.cpp
@@ -29,7 +29,7 @@ qpid::framing::AMQHeaderBody::~AMQHeaderBody() {}
 uint32_t qpid::framing::AMQHeaderBody::size() const{
     CalculateSize visitor;
     for_each(properties.begin(), properties.end(), boost::apply_visitor(visitor));
-    return visitor.totalSize() + (properties.size() * (2/*type codes*/ + 4/*size*/));
+    return visitor.totalSize();
 }
 
 void qpid::framing::AMQHeaderBody::encode(Buffer& buffer) const {
diff --git a/qpid/cpp/src/qpid/framing/AMQHeaderBody.h b/qpid/cpp/src/qpid/framing/AMQHeaderBody.h
index 76bd60559e..9fd99bd2d9 100644
--- a/qpid/cpp/src/qpid/framing/AMQHeaderBody.h
+++ b/qpid/cpp/src/qpid/framing/AMQHeaderBody.h
@@ -41,8 +41,13 @@ class AMQHeaderBody :  public AMQBody
 
     PropertyList properties;
 
+    void decode(BasicHeaderProperties s, Buffer& b, uint32_t size) {
+        s.decode(b, size);
+        properties.push_back(s);
+    }
+
     template <class T> void decode(T t, Buffer& b, uint32_t size) {
-        t.decode(b, size);
+        t.decodeStructBody(b, size);
         properties.push_back(t);
     }
 
@@ -52,10 +57,14 @@ class AMQHeaderBody :  public AMQBody
         Encode(Buffer& b) : buffer(b) {}
 
         template <class T> void operator()(T& t) const {
-            buffer.putLong(t.size() + 2/*typecode*/);
-            buffer.putShort(T::TYPE);
             t.encode(buffer);
         }
+
+        void operator()(const BasicHeaderProperties& s) const {
+            buffer.putLong(s.size() + 2/*typecode*/);
+            buffer.putShort(BasicHeaderProperties::TYPE);           
+            s.encode(buffer);
+        }
     };
 
     class CalculateSize : public boost::static_visitor<> {
@@ -67,6 +76,10 @@ class AMQHeaderBody :  public AMQBody
             size += t.size();
         }
 
+        void operator()(const BasicHeaderProperties& s) {
+            size += s.size() + 2/*typecode*/ + 4/*size field*/;
+        }
+
         uint32_t totalSize() { 
             return size; 
         }        
diff --git a/qpid/cpp/src/qpid/framing/StructHelper.h b/qpid/cpp/src/qpid/framing/StructHelper.h
index 7fc1d2e22b..ad6ba89906 100644
--- a/qpid/cpp/src/qpid/framing/StructHelper.h
+++ b/qpid/cpp/src/qpid/framing/StructHelper.h
@@ -38,14 +38,14 @@ public:
         data.resize(size);
         Buffer wbuffer(const_cast<char*>(data.data()), size);
         wbuffer.putShort(T::TYPE);
-        t.encode(wbuffer);
+        t.encodeStructBody(wbuffer);
     }
 
     template <class T> void decode(T& t, const std::string& data) {
         Buffer rbuffer(const_cast<char*>(data.data()), data.length());
         uint16_t type = rbuffer.getShort();
         if (type == T::TYPE) {
-            t.decode(rbuffer);
+            t.decodeStructBody(rbuffer);
         } else {
             throw Exception("Type code does not match");
         }
diff --git a/qpid/java/common/src/main/java/org/apache/qpidity/transport/codec/AbstractDecoder.java b/qpid/java/common/src/main/java/org/apache/qpidity/transport/codec/AbstractDecoder.java
index e7c1e9b65a..ae67483a23 100644
--- a/qpid/java/common/src/main/java/org/apache/qpidity/transport/codec/AbstractDecoder.java
+++ b/qpid/java/common/src/main/java/org/apache/qpidity/transport/codec/AbstractDecoder.java
@@ -186,7 +186,7 @@ abstract class AbstractDecoder implements Decoder
     {
         Struct st = Struct.create(type);
         int width = st.getSizeWidth();
-        if (false && width > 0)
+        if (width > 0)
         {
             long size = readSize(width);
             if (size == 0)
diff --git a/qpid/java/common/src/main/java/org/apache/qpidity/transport/codec/AbstractEncoder.java b/qpid/java/common/src/main/java/org/apache/qpidity/transport/codec/AbstractEncoder.java
index 2c16b28e51..c2dd205d66 100644
--- a/qpid/java/common/src/main/java/org/apache/qpidity/transport/codec/AbstractEncoder.java
+++ b/qpid/java/common/src/main/java/org/apache/qpidity/transport/codec/AbstractEncoder.java
@@ -223,7 +223,7 @@ abstract class AbstractEncoder implements Encoder
         }
 
         int width = s.getSizeWidth();
-        if (false && width > 0)
+        if (width > 0)
         {
             if (empty)
             {
diff --git a/qpid/python/qpid/codec.py b/qpid/python/qpid/codec.py
index 6399ad2a5d..a3663773a9 100644
--- a/qpid/python/qpid/codec.py
+++ b/qpid/python/qpid/codec.py
@@ -434,7 +434,7 @@ class Codec:
       raise ValueError("invalid width: %s" % width)
 
   def encode_struct(self, type, s):
-    if False and type.size:
+    if type.size:
       enc = StringIO()
       codec = Codec(enc, self.spec)
       codec.encode_struct_body(type, s)
@@ -446,7 +446,7 @@ class Codec:
       self.encode_struct_body(type, s)
 
   def decode_struct(self, type):
-    if False and type.size:
+    if type.size:
       size = self.dec_num(type.size)
       if size == 0:
         return None
-- 
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