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AMQFrame contains a boost::variant of AMQHeaderBody,AMQContentBody,
AMQHeatbeatBody, and MethodHolder. A variant is basically a type-safe
union, it can allocate any of the types in-place.
MethodHolder contains a Blob, a less sophisticated kind of variant,
which can contain any of the concrete method body types.
Using variants for all the method types causes outrageous compile
times and bloated library symbol names. Blob lacks some of the finer
features of variant and needs help from generated code. For now both
are hidden to the rest of the code base behind AMQFrame and MethodBody
classes so if/when we decide to settle on just one "variant" type
solution we can do so.
This commit touches nearly 100 files, mostly converting method
signatures with shared_ptr<FooBody> to FooBody* or FooBody&, and
converting stored shared_ptr<AMQBody> to AMQFrame and
share_ptr<AMQMethodBody> to MethodHolder.
There is one outstanding client memory leak, which I will fix in my next commit.
git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk/qpid@566822 13f79535-47bb-0310-9956-ffa450edef68
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