2002-11-24 Havoc Pennington <hp@pobox.com>

        * test/echo-client.c, test/echo-server.c: cheesy test
	clients.

	* configure.in (AC_CHECK_FUNCS): check for writev

	* dbus/dbus-message.c (_dbus_message_get_network_data): new
	function

	* dbus/dbus-list.c (_dbus_list_foreach): new function

	* dbus/dbus-internals.c (_dbus_verbose): new function

	* dbus/dbus-server.c, dbus/dbus-server.h: public object
	representing a server that listens for connections.

	* dbus/.cvsignore: create

	* dbus/dbus-errors.h, dbus/dbus-errors.c:
	public API for reporting errors

	* dbus/dbus-connection.h, dbus/dbus-connection.c:
	public object representing a connection that
	sends/receives messages. (Same object used for
	both client and server.)

	* dbus/dbus-transport.h, dbus/dbus-transport.c:
	Basic abstraction for different kinds of stream
	that we might read/write messages from.

1 files changed, 299 insertions, 0 deletions

diff --git a/dbus/dbus-server.c b/dbus/dbus-server.c
new file mode 100644
index 00000000..c4b36bd6
--- /dev/null
+++ b/dbus/dbus-server.c
@@ -0,0 +1,299 @@
+/* -*- mode: C; c-file-style: "gnu" -*- */
+/* dbus-server.c DBusServer object
+ *
+ * Copyright (C) 2002  Red Hat Inc.
+ *
+ * Licensed under the Academic Free License version 1.2
+ * 
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+#include "dbus-server.h"
+#include "dbus-server-unix.h"
+
+/**
+ * @defgroup DBusServer DBusServer
+ * @ingroup  DBus
+ * @brief Server that listens for new connections.
+ *
+ * Types and functions related to DBusServer.
+ * A DBusServer represents a server that other applications
+ * can connect to. Each connection from another application
+ * is represented by a DBusConnection.
+ */
+
+/**
+ * @defgroup DBusServerInternals DBusServer implementation details
+ * @ingroup  DBusInternals
+ * @brief Implementation details of DBusServer
+ *
+ * @{
+ */
+
+/**
+ * Initializes the members of the DBusServer base class.
+ * Chained up to by subclass constructors.
+ *
+ * @param server the server.
+ * @param vtable the vtable for the subclass.
+ * @returns #TRUE on success.
+ */
+dbus_bool_t
+_dbus_server_init_base (DBusServer             *server,
+                        const DBusServerVTable *vtable)
+{
+  server->vtable = vtable;
+  server->refcount = 1;
+
+  server->watches = _dbus_watch_list_new ();
+  if (server->watches == NULL)
+    return FALSE;
+
+  return TRUE;
+}
+
+/**
+ * Finalizes the members of the DBusServer base class.
+ * Chained up to by subclass finalizers.
+ *
+ * @param server the server.
+ */
+void
+_dbus_server_finalize_base (DBusServer *server)
+{
+  dbus_server_set_new_connection_function (server, NULL, NULL, NULL);
+
+  if (!server->disconnected)
+    dbus_server_disconnect (server);
+
+  _dbus_watch_list_free (server->watches);
+}
+
+/**
+ * Adds a watch for this server, chaining out to application-provided
+ * watch handlers.
+ *
+ * @param server the server.
+ * @param watch the watch to add.
+ */
+dbus_bool_t
+_dbus_server_add_watch (DBusServer *server,
+                        DBusWatch  *watch)
+{
+  return _dbus_watch_list_add_watch (server->watches, watch);
+}
+
+/**
+ * Removes a watch previously added with _dbus_server_remove_watch().
+ *
+ * @param server the server.
+ * @param watch the watch to remove.
+ */
+void
+_dbus_server_remove_watch  (DBusServer *server,
+                            DBusWatch  *watch)
+{
+  _dbus_watch_list_remove_watch (server->watches, watch);
+}
+
+
+/** @} */
+
+/**
+ * @addtogroup DBusServer
+ *
+ * @{
+ */
+
+
+/**
+ * @typedef DBusServer
+ *
+ * An opaque object representing a server that listens for
+ * connections from other applications. Each time a connection
+ * is made, a new DBusConnection is created and made available
+ * via an application-provided DBusNewConnectionFunction.
+ * The DBusNewConnectionFunction is provided with
+ * dbus_server_set_new_connection_function().
+ * 
+ */
+
+/**
+ * Listens for new connections on the given address.
+ * Returns #NULL if listening fails for any reason.
+ * Otherwise returns a new #DBusServer.
+ * dbus_server_set_new_connection_function() and
+ * dbus_server_set_watch_functions() should be called
+ * immediately to render the server fully functional.
+ *
+ * @param address the address of this server.
+ * @param result location to store rationale for failure.
+ * @returns a new DBusServer, or #NULL on failure.
+ * 
+ */
+DBusServer*
+dbus_server_listen (const char     *address,
+                    DBusResultCode *result)
+{
+  DBusServer *server;
+
+  /* For now just pretend the address is a unix domain socket path */
+  server = _dbus_server_new_for_domain_socket (address, result);
+  
+  return server;
+}
+
+/**
+ * Increments the reference count of a DBusServer.
+ *
+ * @param server the server.
+ */
+void
+dbus_server_ref (DBusServer *server)
+{
+  server->refcount += 1;
+}
+
+/**
+ * Decrements the reference count of a DBusServer.  Finalizes the
+ * server if the reference count reaches zero. The server connection
+ * will be closed as with dbus_server_disconnect() when the server is
+ * finalized.
+ *
+ * @param server the server.
+ */
+void
+dbus_server_unref (DBusServer *server)
+{
+  _dbus_assert (server != NULL);
+  _dbus_assert (server->refcount > 0);
+
+  server->refcount -= 1;
+  if (server->refcount == 0)
+    {
+      _dbus_assert (server->vtable->finalize != NULL);
+      
+      (* server->vtable->finalize) (server);
+    }
+}
+
+/**
+ * Releases the server's address and stops listening for
+ * new clients. If called more than once, only the first
+ * call has an effect. Does not modify the server's
+ * reference count.
+ * 
+ * @param server the server.
+ */
+void
+dbus_server_disconnect (DBusServer *server)
+{
+  _dbus_assert (server->vtable->disconnect != NULL);
+
+  if (server->disconnected)
+    return;
+  
+  (* server->vtable->disconnect) (server);
+  server->disconnected = TRUE;
+}
+
+/**
+ * Returns #TRUE if the server is still listening for new connections.
+ *
+ * @param server the server.
+ */
+dbus_bool_t
+dbus_server_get_is_connected (DBusServer *server)
+{
+  return !server->disconnected;
+}
+
+/**
+ * Sets a function to be used for handling new connections.  The given
+ * function is passed each new connection as the connection is
+ * created. If the new connection function increments the connection's
+ * reference count, the connection will stay alive. Otherwise, the
+ * connection will be unreferenced and closed.
+ *
+ * @param server the server.
+ * @param function a function to handle new connections.
+ * @param data data to pass to the new connection handler.
+ * @param free_data_function function to free the data.
+ */
+void
+dbus_server_set_new_connection_function (DBusServer                *server,
+                                         DBusNewConnectionFunction  function,
+                                         void                      *data,
+                                         DBusFreeFunction           free_data_function)
+{
+  if (server->new_connection_free_data_function != NULL)
+    (* server->new_connection_free_data_function) (server->new_connection_data);
+  
+  server->new_connection_function = function;
+  server->new_connection_data = data;
+  server->new_connection_free_data_function = free_data_function;
+}
+
+/**
+ * Sets the watch functions for the connection. These functions are
+ * responsible for making the application's main loop aware of file
+ * descriptors that need to be monitored for events.
+ *
+ * This function behaves exactly like dbus_connection_set_watch_functions();
+ * see the documentation for that routine.
+ *
+ * @param server the server.
+ * @param add_function function to begin monitoring a new descriptor.
+ * @param remove_function function to stop monitoring a descriptor.
+ * @param data data to pass to add_function and remove_function.
+ * @param free_data_function function to be called to free the data.
+ */
+void
+dbus_server_set_watch_functions (DBusServer              *server,
+                                 DBusAddWatchFunction     add_function,
+                                 DBusRemoveWatchFunction  remove_function,
+                                 void                    *data,
+                                 DBusFreeFunction         free_data_function)
+{
+  _dbus_watch_list_set_functions (server->watches,
+                                  add_function,
+                                  remove_function,
+                                  data,
+                                  free_data_function);
+}
+
+/**
+ * Called to notify the server when a previously-added watch
+ * is ready for reading or writing, or has an exception such
+ * as a hangup.
+ *
+ * @param server the server.
+ * @param watch the watch.
+ * @param condition the current condition of the file descriptors being watched.
+ */
+void
+dbus_server_handle_watch (DBusServer              *server,
+                          DBusWatch               *watch,
+                          unsigned int             condition)
+{
+  _dbus_assert (server->vtable->handle_watch != NULL);
+
+  _dbus_watch_sanitize_condition (watch, &condition);
+  
+  (* server->vtable->handle_watch) (server, watch, condition);
+}
+
+/** @} */
+