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Rework HTTP concepts (API Change):

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fix #139, fix #140

* Writer uses write instead of operator()
* Refactor traits to use void_t
* Remove is_ReadableBody, is_WritableBody
* Add has_reader, has_writer, is_Reader, is_Writer
* More friendly compile errors on failed concept checks
This commit is contained in:
Vinnie Falco
2017-07-20 08:12:13 -07:00
parent f110e51dd1
commit 056d6b94c2
15 changed files with 333 additions and 186 deletions
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test/http/write.cpp
+12 -10
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@@ -104,21 +104,22 @@ public:
public:
template<bool isRequest, class Allocator>
explicit
writer(message<isRequest, unsized_body, Allocator> const& msg)
writer(message<isRequest, unsized_body, Allocator> const& msg) noexcept
: body_(msg.body)
{
}
void
init(error_code& ec)
init(error_code& ec) noexcept
{
}
template<class Write>
template<class WriteFunction>
boost::tribool
operator()(resume_context&&, error_code&, Write&& write)
write(resume_context&&, error_code&,
WriteFunction&& wf) noexcept
{
write(boost::asio::buffer(body_));
wf(boost::asio::buffer(body_));
return true;
}
};
@@ -168,13 +169,13 @@ public:
public:
template<bool isRequest, class Allocator>
explicit
writer(message<isRequest, fail_body, Allocator> const& msg)
writer(message<isRequest, fail_body, Allocator> const& msg) noexcept
: body_(msg.body)
{
}
void
init(error_code& ec)
init(error_code& ec) noexcept
{
body_.fc_.fail(ec);
}
@@ -197,9 +198,10 @@ public:
}
};
template<class Write>
template<class WriteFunction>
boost::tribool
operator()(resume_context&& rc, error_code& ec, Write&& write)
write(resume_context&& rc, error_code& ec,
WriteFunction&& wf) noexcept
{
if(body_.fc_.fail(ec))
return false;
@@ -211,7 +213,7 @@ public:
}
if(n_ >= body_.s_.size())
return true;
write(boost::asio::buffer(body_.s_.data() + n_, 1));
wf(boost::asio::buffer(body_.s_.data() + n_, 1));
++n_;
return n_ == body_.s_.size();
}