Add static fields and message containers

Author: ashtum

include/boost/http_proto.hpp

@@ -38,6 +38,9 @@
 #include <boost/http_proto/serializer.hpp>
 #include <boost/http_proto/sink.hpp>
 #include <boost/http_proto/source.hpp>
+#include <boost/http_proto/static_fields.hpp>
+#include <boost/http_proto/static_request.hpp>
+#include <boost/http_proto/static_response.hpp>
 #include <boost/http_proto/status.hpp>
 #include <boost/http_proto/string_body.hpp>
 #include <boost/http_proto/version.hpp>

include/boost/http_proto/detail/header.hpp

@@ -46,10 +46,12 @@ struct empty
 
 struct header
 {
-    // this field lookup table is
-    // stored at the end of the
-    // allocated buffer, in
-    // reverse order.
+    // +------------+-----------+--------------+------------------------------+
+    // | start-line |  headers  |  free space  |  entry[count-1] ... entry[0] |
+    // +------------+-----------+--------------+------------------------------+
+    // ^            ^           ^                                             ^
+    // buf          buf+prefix  buf+size                                      buf+cap
+
     struct entry
     {
         offset_type np;   // name pos

include/boost/http_proto/detail/impl/workspace.hpp

@@ -30,7 +30,7 @@ struct workspace::any
 };
 
 template<class U>
-struct alignas(alignof(::max_align_t))
+struct alignas(::max_align_t)
     workspace::any_impl : any
 {
     U u;
@@ -117,7 +117,7 @@ push_array(
     std::size_t n,
     T const& t)
 {
-    struct alignas(alignof(::max_align_t))
+    struct alignas(::max_align_t)
         U : any
     {
         std::size_t n_ = 0;

include/boost/http_proto/detail/sv.hpp

@@ -21,7 +21,7 @@ namespace detail {
 namespace string_literals {
 inline
 core::string_view
-operator"" _sv(
+operator""_sv(
     char const* p,
     std::size_t n) noexcept
 {

include/boost/http_proto/fields_base.hpp

@@ -37,43 +37,90 @@ class fields_base
     : public virtual fields_view_base
 {
     detail::header h_;
+    bool static_storage = false;
 
     class op_t;
+    class prefix_op_t
+    {
+        fields_base& self_;
+        offset_type new_prefix_;
+        char* buf_ = nullptr;
+
+    public:
+        prefix_op_t(
+            fields_base& self,
+            std::size_t new_prefix,
+            core::string_view* s0 = nullptr,
+            core::string_view* s1 = nullptr);
+
+        ~prefix_op_t();
+    };
+
     using entry =
         detail::header::entry;
     using table =
         detail::header::table;
 
     friend class fields;
+    template<std::size_t>
+    friend class static_fields;
+    friend class request_base;
     friend class request;
+    template<std::size_t>
+    friend class static_request;
+    friend class response_base;
     friend class response;
+    template<std::size_t>
+    friend class static_response;
     friend class serializer;
     friend class message_base;
     friend struct detail::header;
     friend struct detail::prefix_op;
 
+    BOOST_HTTP_PROTO_DECL
+    explicit
+    fields_base(
+        detail::kind) noexcept;
+
     BOOST_HTTP_PROTO_DECL
     fields_base(
         detail::kind,
-        std::size_t size);
+        char*,
+        std::size_t) noexcept;
 
     BOOST_HTTP_PROTO_DECL
     fields_base(
         detail::kind,
-        std::size_t size,
-        std::size_t max_size);
+        std::size_t);
 
     BOOST_HTTP_PROTO_DECL
-    explicit
     fields_base(
-        detail::kind) noexcept;
+        detail::kind,
+        std::size_t,
+        std::size_t);
 
     BOOST_HTTP_PROTO_DECL
     fields_base(
         detail::kind,
         core::string_view);
 
-    fields_base(detail::header const&);
+    BOOST_HTTP_PROTO_DECL
+    fields_base(
+        detail::kind,
+        char*,
+        std::size_t,
+        core::string_view);
+
+    BOOST_HTTP_PROTO_DECL
+    explicit
+    fields_base(
+        detail::header const&);
+
+    BOOST_HTTP_PROTO_DECL
+    fields_base(
+        detail::header const&,
+        char*,
+        std::size_t);
 
 public:
     /** Destructor

include/boost/http_proto/fields_view.hpp

@@ -24,6 +24,8 @@ class BOOST_SYMBOL_VISIBLE
     : public fields_view_base
 {
     friend class fields;
+    template<std::size_t>
+    friend class static_fields;
 
 #ifndef BOOST_HTTP_PROTO_DOCS
 protected:

include/boost/http_proto/fields_view_base.hpp

@@ -32,13 +32,21 @@ class fields_view_base
     detail::header const* ph_;
 
     friend class fields;
+    template<std::size_t>
+    friend class static_fields;
     friend class fields_base;
     friend class fields_view;
     friend class message_base;
     friend class message_view_base;
+    friend class request_base;
     friend class request;
+    template<std::size_t>
+    friend class static_request;
     friend class request_view;
+    friend class response_base;
     friend class response;
+    template<std::size_t>
+    friend class static_response;
     friend class response_view;
     friend class serializer;
 

include/boost/http_proto/message_base.hpp

@@ -25,8 +25,8 @@ class message_base
     : public fields_base
     , public message_view_base
 {
-    friend class request;
-    friend class response;
+    friend class request_base;
+    friend class response_base;
 
     explicit
     message_base(
@@ -37,6 +37,16 @@ class message_base
     {
     }
 
+    message_base(
+        detail::kind k,
+        char* storage,
+        std::size_t storage_size) noexcept
+        : fields_view_base(&this->fields_base::h_)
+        , fields_base(
+            k, storage, storage_size)
+    {
+    }
+
     message_base(
         detail::kind k,
         std::size_t storage_size)
@@ -67,15 +77,37 @@ class message_base
     {
     }
 
+    message_base(
+        detail::kind k,
+        char* storage,
+        std::size_t storage_size,
+        core::string_view s)
+        : fields_view_base(
+            &this->fields_base::h_)
+        , fields_base(
+            k, storage, storage_size, s)
+    {
+    }
+
     explicit
     message_base(
-        detail::header const& ph) noexcept
+        detail::header const& ph)
         : fields_view_base(
             &this->fields_base::h_)
         , fields_base(ph)
     {
     }
 
+    message_base(
+        detail::header const& ph,
+        char* storage,
+        std::size_t storage_size)
+        : fields_view_base(
+            &this->fields_base::h_)
+        , fields_base(ph, storage, storage_size)
+    {
+    }
+
 public:
     //--------------------------------------------
     //