httpd: new output plugin to replace "shout"

Let's get rid of the "shout" plugin, and the awfully complicated
icecast daemon setup!  MPD can do better if it's doing the HTTP server
stuff on its own.  This new plugin has several advantages:

- easier to set up - only one daemon, no password settings, no mount
  settings
- MPD controls the encoder and thus already knows the packet
  boundaries - icecast has to parse them
- MPD doesn't bother to encode data while nobody is listening

This implementation is very experimental (no header parsing, ignores
request URI, no icy-metadata, ...).  It should be able to suport
several encoders in parallel in the future (with different bit rates,
different codec, ...), to make MPD the perfect streaming server.  Once
MPD gets multi-player support, we can even mount several different
radio stations on one server.

1 files changed, 65 insertions, 0 deletions

diff --git a/src/output/httpd_client.h b/src/output/httpd_client.h
new file mode 100644
index 000000000..56a0203a3
--- /dev/null
+++ b/src/output/httpd_client.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2003-2009 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program 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.
+ *
+ * This program 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 more 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_OUTPUT_HTTPD_CLIENT_H
+#define MPD_OUTPUT_HTTPD_CLIENT_H
+
+#include <glib.h>
+
+#include <stdbool.h>
+
+struct httpd_client;
+struct httpd_output;
+struct page;
+
+/**
+ * Creates a new #httpd_client object
+ *
+ * @param httpd the HTTP output device
+ * @param fd the socket file descriptor
+ */
+struct httpd_client *
+httpd_client_new(struct httpd_output *httpd, int fd);
+
+/**
+ * Frees memory and resources allocated by the #httpd_client object.
+ * This does not remove it from the #httpd_output object.
+ */
+void
+httpd_client_free(struct httpd_client *client);
+
+/**
+ * Returns the total size of this client's page queue.
+ */
+size_t
+httpd_client_queue_size(const struct httpd_client *client);
+
+/**
+ * Clears the page queue.
+ */
+void
+httpd_client_cancel(const struct httpd_client *client);
+
+/**
+ * Appends a page to the client's queue.
+ */
+void
+httpd_client_send(struct httpd_client *client, struct page *page);
+
+#endif