1 /* 2 * libwebsockets - small server side websockets and web server implementation 3 * 4 * Copyright (C) 2010 - 2019 Andy Green <andy@warmcat.com> 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to 8 * deal in the Software without restriction, including without limitation the 9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 10 * sell copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 22 * IN THE SOFTWARE. 23 * 24 * must be included manually as 25 * 26 * #include <libwebsockets/lws-dbus.h> 27 * 28 * if dbus apis needed 29 */ 30 31 #if !defined(__LWS_DBUS_H__) 32 #define __LWS_DBUS_H__ 33 34 #include <dbus/dbus.h> 35 36 /* helper type to simplify implementing methods as individual functions */ 37 typedef DBusHandlerResult (*lws_dbus_message_handler)(DBusConnection *conn, 38 DBusMessage *message, DBusMessage **reply, void *d); 39 40 struct lws_dbus_ctx; 41 typedef void (*lws_dbus_closing_t)(struct lws_dbus_ctx *ctx); 42 43 struct lws_dbus_ctx { 44 struct lws_dll2_owner owner; /* dbusserver ctx: HEAD of accepted list */ 45 struct lws_dll2 next; /* dbusserver ctx: HEAD of accepted list */ 46 struct lws_vhost *vh; /* the vhost we logically bind to in lws */ 47 int tsi; /* the lws thread service index (0 if only one service 48 thread as is the default */ 49 DBusConnection *conn; 50 DBusServer *dbs; 51 DBusWatch *w[4]; 52 DBusPendingCall *pc; 53 54 char hup; 55 char timeouts; 56 57 /* cb_closing callback will be called after the connection and this 58 * related ctx struct have effectively gone out of scope. 59 * 60 * The callback should close and clean up the connection and free the 61 * ctx. 62 */ 63 lws_dbus_closing_t cb_closing; 64 }; 65 66 /** 67 * lws_dbus_connection_setup() - bind dbus connection object to lws event loop 68 * 69 * \param ctx: additional information about the connection 70 * \param conn: the DBusConnection object to bind 71 * 72 * This configures a DBusConnection object to use lws for watchers and timeout 73 * operations. 74 */ 75 LWS_VISIBLE LWS_EXTERN int 76 lws_dbus_connection_setup(struct lws_dbus_ctx *ctx, DBusConnection *conn, 77 lws_dbus_closing_t cb_closing); 78 79 /** 80 * lws_dbus_server_listen() - bind dbus connection object to lws event loop 81 * 82 * \param ctx: additional information about the connection 83 * \param ads: the DBUS address to listen on, eg, "unix:abstract=mysocket" 84 * \param err: a DBusError object to take any extra error information 85 * \param new_conn: a callback function to prepare new accepted connections 86 * 87 * This creates a DBusServer and binds it to the lws event loop, and your 88 * callback to accept new connections. 89 */ 90 LWS_VISIBLE LWS_EXTERN DBusServer * 91 lws_dbus_server_listen(struct lws_dbus_ctx *ctx, const char *ads, 92 DBusError *err, DBusNewConnectionFunction new_conn); 93 94 #endif 95