Add boost and cpprestsdk

vendor/cpprestsdk/include/cpprest/details/http_helpers.h

@@ -0,0 +1,48 @@
+/***
+ * Copyright (C) Microsoft. All rights reserved.
+ * Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
+ *
+ * =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
+ *
+ * Implementation Details of the http.h layer of messaging
+ *
+ * Functions and types for interoperating with http.h from modern C++
+ *   This file includes windows definitions and should not be included in a public header
+ *
+ * For the latest on this and related APIs, please see: https://github.com/Microsoft/cpprestsdk
+ *
+ * =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
+ ****/
+#pragma once
+
+#include "cpprest/details/basic_types.h"
+#include "cpprest/http_msg.h"
+
+namespace web
+{
+namespace http
+{
+namespace details
+{
+namespace chunked_encoding
+{
+// Transfer-Encoding: chunked support
+static const size_t additional_encoding_space = 12;
+static const size_t data_offset = additional_encoding_space - 2;
+
+// Add the data necessary for properly sending data with transfer-encoding: chunked.
+//
+// There are up to 12 additional bytes needed for each chunk:
+//
+// The last chunk requires 5 bytes, and is fixed.
+// All other chunks require up to 8 bytes for the length, and four for the two CRLF
+// delimiters.
+//
+_ASYNCRTIMP size_t __cdecl add_chunked_delimiters(_Out_writes_(buffer_size) uint8_t* data,
+                                                  _In_ size_t buffer_size,
+                                                  size_t bytes_read);
+} // namespace chunked_encoding
+
+} // namespace details
+} // namespace http
+} // namespace web