http: changing transaction API to inline req and res structures

This is a step towards simplifying this API and ultimately simplifying
the HTTP callback API used for the server side.

1 files changed, 57 insertions, 0 deletions

diff --git a/src/supplemental/http/http_msg.h b/src/supplemental/http/http_msg.h
new file mode 100644
index 00000000..7d9e7dcf
--- /dev/null
+++ b/src/supplemental/http/http_msg.h
@@ -0,0 +1,57 @@
+//
+// Copyright 2025 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_SUPPLEMENTAL_HTTP_HTTP_MSG
+#define NNG_SUPPLEMENTAL_HTTP_HTTP_MSG
+
+#include "core/defs.h"
+#include "core/list.h"
+
+// Note that as we parse headers, the rule is that if a header is already
+// present, then we can append it to the existing header, separated by
+// a comma.  From experience, for example, Firefox uses a Connection:
+// header with two values, "keepalive", and "upgrade".
+typedef struct http_header {
+	char         *name;
+	char         *value;
+	nni_list_node node;
+} http_header;
+
+typedef struct nni_http_entity {
+	char  *data;
+	size_t size; // allocated/expected size
+	size_t len;  // current length
+	bool   own;  // if true, data is "ours", and should be freed
+} nni_http_entity;
+
+struct nng_http_req {
+	nni_list        hdrs;
+	nni_http_entity data;
+	char            meth[32];
+	char           *uri;
+	const char     *vers;
+	char           *buf;
+	size_t          bufsz;
+	bool            parsed;
+};
+
+struct nng_http_res {
+	nni_list        hdrs;
+	nni_http_entity data;
+	uint16_t        code;
+	char           *rsn;
+	const char     *vers;
+	char           *buf;
+	size_t          bufsz;
+	bool            parsed;
+	bool            iserr;
+};
+
+#endif