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      1 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
      2 /* dbus-shared.h  Stuff used by both dbus/dbus.h low-level and C/C++ binding APIs
      3  *
      4  * Copyright (C) 2004 Red Hat, Inc.
      5  *
      6  * Licensed under the Academic Free License version 2.1
      7  *
      8  * This program is free software; you can redistribute it and/or modify
      9  * it under the terms of the GNU General Public License as published by
     10  * the Free Software Foundation; either version 2 of the License, or
     11  * (at your option) any later version.
     12  *
     13  * This program is distributed in the hope that it will be useful,
     14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     16  * GNU General Public License for more details.
     17  *
     18  * You should have received a copy of the GNU General Public License
     19  * along with this program; if not, write to the Free Software
     20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
     21  *
     22  */
     23 
     24 #ifndef DBUS_SHARED_H
     25 #define DBUS_SHARED_H
     26 
     27 /* Don't include anything in here from anywhere else. It's
     28  * intended for use by any random library.
     29  */
     30 
     31 #ifdef  __cplusplus
     32 extern "C" {
     33 #if 0
     34 } /* avoids confusing emacs indentation */
     35 #endif
     36 #endif
     37 
     38 /* Normally docs are in .c files, but there isn't a .c file for this. */
     39 /**
     40  * @defgroup DBusShared Shared constants
     41  * @ingroup  DBus
     42  *
     43  * @brief Shared header included by both libdbus and C/C++ bindings such as the GLib bindings.
     44  *
     45  * Usually a C/C++ binding such as the GLib or Qt binding won't want to include dbus.h in its
     46  * public headers. However, a few constants and macros may be useful to include; those are
     47  * found here and in dbus-protocol.h
     48  *
     49  * @{
     50  */
     51 
     52 
     53 /**
     54  * Well-known bus types. See dbus_bus_get().
     55  */
     56 typedef enum
     57 {
     58   DBUS_BUS_SESSION,    /**< The login session bus */
     59   DBUS_BUS_SYSTEM,     /**< The systemwide bus */
     60   DBUS_BUS_STARTER     /**< The bus that started us, if any */
     61 } DBusBusType;
     62 
     63 /**
     64  * Results that a message handler can return.
     65  */
     66 typedef enum
     67 {
     68   DBUS_HANDLER_RESULT_HANDLED,         /**< Message has had its effect - no need to run more handlers. */
     69   DBUS_HANDLER_RESULT_NOT_YET_HANDLED, /**< Message has not had any effect - see if other handlers want it. */
     70   DBUS_HANDLER_RESULT_NEED_MEMORY      /**< Need more memory in order to return #DBUS_HANDLER_RESULT_HANDLED or #DBUS_HANDLER_RESULT_NOT_YET_HANDLED. Please try again later with more memory. */
     71 } DBusHandlerResult;
     72 
     73 /* Bus names */
     74 
     75 /** The bus name used to talk to the bus itself. */
     76 #define DBUS_SERVICE_DBUS      "org.freedesktop.DBus"
     77 
     78 /* Paths */
     79 /** The object path used to talk to the bus itself. */
     80 #define DBUS_PATH_DBUS  "/org/freedesktop/DBus"
     81 /** The object path used in local/in-process-generated messages. */
     82 #define DBUS_PATH_LOCAL "/org/freedesktop/DBus/Local"
     83 
     84 /* Interfaces, these #define don't do much other than
     85  * catch typos at compile time
     86  */
     87 /** The interface exported by the object with #DBUS_SERVICE_DBUS and #DBUS_PATH_DBUS */
     88 #define DBUS_INTERFACE_DBUS           "org.freedesktop.DBus"
     89 /** The interface supported by introspectable objects */
     90 #define DBUS_INTERFACE_INTROSPECTABLE "org.freedesktop.DBus.Introspectable"
     91 /** The interface supported by objects with properties */
     92 #define DBUS_INTERFACE_PROPERTIES     "org.freedesktop.DBus.Properties"
     93 /** The interface supported by most dbus peers */
     94 #define DBUS_INTERFACE_PEER           "org.freedesktop.DBus.Peer"
     95 
     96 /** This is a special interface whose methods can only be invoked
     97  * by the local implementation (messages from remote apps aren't
     98  * allowed to specify this interface).
     99  */
    100 #define DBUS_INTERFACE_LOCAL "org.freedesktop.DBus.Local"
    101 
    102 /* Owner flags */
    103 #define DBUS_NAME_FLAG_ALLOW_REPLACEMENT 0x1 /**< Allow another service to become the primary owner if requested */
    104 #define DBUS_NAME_FLAG_REPLACE_EXISTING  0x2 /**< Request to replace the current primary owner */
    105 #define DBUS_NAME_FLAG_DO_NOT_QUEUE      0x4 /**< If we can not become the primary owner do not place us in the queue */
    106 
    107 /* Replies to request for a name */
    108 #define DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER  1 /**< Service has become the primary owner of the requested name */
    109 #define DBUS_REQUEST_NAME_REPLY_IN_QUEUE       2 /**< Service could not become the primary owner and has been placed in the queue */
    110 #define DBUS_REQUEST_NAME_REPLY_EXISTS         3 /**< Service is already in the queue */
    111 #define DBUS_REQUEST_NAME_REPLY_ALREADY_OWNER  4 /**< Service is already the primary owner */
    112 
    113 /* Replies to releasing a name */
    114 #define DBUS_RELEASE_NAME_REPLY_RELEASED        1 /**< Service was released from the given name */
    115 #define DBUS_RELEASE_NAME_REPLY_NON_EXISTENT    2 /**< The given name does not exist on the bus */
    116 #define DBUS_RELEASE_NAME_REPLY_NOT_OWNER       3 /**< Service is not an owner of the given name */
    117 
    118 /* Replies to service starts */
    119 #define DBUS_START_REPLY_SUCCESS         1 /**< Service was auto started */
    120 #define DBUS_START_REPLY_ALREADY_RUNNING 2 /**< Service was already running */
    121 
    122 /** @} */
    123 
    124 #ifdef __cplusplus
    125 #if 0
    126 { /* avoids confusing emacs indentation */
    127 #endif
    128 }
    129 #endif
    130 
    131 #endif /* DBUS_SHARED_H */
    132