Stubs for HTTP streaming.

git-svn-id: http://svn.drobilla.net/lad/trunk/ingen@1719 a436a847-0d15-0410-975c-d299462d15a1

3 files changed, 142 insertions, 1 deletions

diff --git a/src/shared/HTTPSender.cpp b/src/shared/HTTPSender.cpp
new file mode 100644
index 00000000..20135b2a
--- /dev/null
+++ b/src/shared/HTTPSender.cpp
@@ -0,0 +1,81 @@
+/* This file is part of Ingen.
+ * Copyright (C) 2008 Dave Robillard <http://drobilla.net>
+ * 
+ * Ingen is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option) any later
+ * version.
+ * 
+ * Ingen is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for details.
+ * 
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "HTTPSender.hpp"
+#include <cassert>
+#include <iostream>
+#include <unistd.h>
+#include <stdarg.h>
+
+using namespace std;
+
+namespace Ingen {
+namespace Shared {
+
+
+HTTPSender::HTTPSender(SoupServer* server, SoupMessage* msg)
+	: _server(server)
+	, _msg(msg)
+{
+	soup_message_headers_set_encoding(msg->response_headers, SOUP_ENCODING_CHUNKED);
+	cout << "Hello?" << endl;
+	send_chunk("hello");
+}
+
+
+HTTPSender::~HTTPSender()
+{
+	cout << "HTTP SENDER EXIT" << endl;
+	soup_message_body_complete(_msg->response_body);
+	soup_server_unpause_message(_server, _msg);
+}
+
+
+void
+HTTPSender::bundle_begin()
+{
+	_send_state = SendingBundle;
+}
+
+
+void
+HTTPSender::bundle_end()
+{
+	assert(_send_state == SendingBundle);
+	soup_message_body_append(_msg->response_body,
+			SOUP_MEMORY_TEMPORARY, _transfer.c_str(), _transfer.length());
+	soup_server_unpause_message(_server, _msg);
+	_transfer = "";
+	_send_state = Immediate;
+}
+
+	
+void
+HTTPSender::send_chunk(const std::string& buf)
+{
+	if (_send_state == Immediate) {
+		soup_message_body_append(_msg->response_body,
+				SOUP_MEMORY_TEMPORARY, buf.c_str(), buf.length());
+		soup_server_unpause_message(_server, _msg);
+	} else {
+		_transfer.append(buf);
+	}
+}
+
+
+} // namespace Shared
+} // namespace Ingen
diff --git a/src/shared/HTTPSender.hpp b/src/shared/HTTPSender.hpp
new file mode 100644
index 00000000..1025c071
--- /dev/null
+++ b/src/shared/HTTPSender.hpp
@@ -0,0 +1,57 @@
+/* This file is part of Ingen.
+ * Copyright (C) 2008 Dave Robillard <http://drobilla.net>
+ * 
+ * Ingen is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option) any later
+ * version.
+ * 
+ * Ingen is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for details.
+ * 
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef HTTPSENDER_H
+#define HTTPSENDER_H
+
+#include <stdint.h>
+#include <string>
+#include <libsoup/soup.h>
+
+namespace Ingen {
+namespace Shared {
+
+class HTTPSender {
+public:
+	HTTPSender(SoupServer* server, SoupMessage* msg);
+	virtual ~HTTPSender();
+
+	// Message bundling
+	void bundle_begin();
+	void bundle_end();
+	
+	// Transfers (loose bundling)
+	void transfer_begin() { bundle_begin(); }
+	void transfer_end()   { bundle_end(); }
+
+protected:
+	void send_chunk(const std::string& buf);
+
+	enum SendState { Immediate, SendingBundle };
+
+	SoupServer*  _server;
+	SoupMessage* _msg;
+	SendState    _send_state;
+	std::string  _transfer;
+};
+
+
+} // namespace Shared
+} // namespace Ingen
+
+#endif // HTTPSENDER_H
+
diff --git a/src/shared/wscript b/src/shared/wscript
index 6a5758a0..a758b8ad 100644
--- a/src/shared/wscript
+++ b/src/shared/wscript
@@ -12,8 +12,11 @@ def build(bld):
 		Store.cpp
 		runtime_paths.cpp
 	'''
-	if bld.env()['HAVE_LIBLO']:
+	if bld.env()['HAVE_LIBLO'] == 1:
 		obj.source += ' OSCSender.cpp '
+	if bld.env()['HAVE_SOUP'] == 1:
+		autowaf.use_lib(bld, obj, 'SOUP')
+		obj.source += ' HTTPSender.cpp '
 	obj.includes = ['.', '../', '../common']
 	obj.name     = 'libingen_shared'
 	obj.target   = 'ingen_shared'