/* -*- mode: C; c-file-style: "gnu" -*- */

/* dbus-connection.h DBusConnection object

 *

 * Copyright (C) 2002, 2003  Red Hat Inc.

 * Portion Copyright © 2008 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.

 * Licensed under the Academic Free License version 2.1

 * 

 * 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

 *

 */

#if !defined (DBUS_INSIDE_DBUS_H) && !defined (DBUS_COMPILATION)

#error "Only <dbus/dbus.h> can be included directly, this file may disappear or change contents."

#endif

#ifndef DBUS_CONNECTION_H

#define DBUS_CONNECTION_H

#include <dbus/dbus-errors.h>

#include <dbus/dbus-memory.h>

#include <dbus/dbus-message.h>

#include <dbus/dbus-shared.h>

DBUS_BEGIN_DECLS

/**

 * @addtogroup DBusConnection

 * @{

 */

/* documented in dbus-watch.c */

typedef struct DBusWatch DBusWatch;

/* documented in dbus-timeout.c */

typedef struct DBusTimeout DBusTimeout;

/** Opaque type representing preallocated resources so a message can be sent without further memory allocation. */

typedef struct DBusPreallocatedSend DBusPreallocatedSend;

/** Opaque type representing a method call that has not yet received a reply. */

typedef struct DBusPendingCall DBusPendingCall;

/** Opaque type representing a connection to a remote application and associated incoming/outgoing message queues. */

typedef struct DBusConnection DBusConnection;

/** Set of functions that must be implemented to handle messages sent to a particular object path. */

typedef struct DBusObjectPathVTable DBusObjectPathVTable;

/**

 * Indicates the status of a #DBusWatch.

 */

typedef enum

{

  DBUS_WATCH_READABLE = 1 << 0, /**< As in POLLIN */

  DBUS_WATCH_WRITABLE = 1 << 1, /**< As in POLLOUT */

  DBUS_WATCH_ERROR    = 1 << 2, /**< As in POLLERR (can't watch for

                                 *   this, but can be present in

                                 *   current state passed to

                                 *   dbus_watch_handle()).

                                 */

  DBUS_WATCH_HANGUP   = 1 << 3  /**< As in POLLHUP (can't watch for

                                 *   it, but can be present in current

                                 *   state passed to

                                 *   dbus_watch_handle()).

                                 */

} DBusWatchFlags;

/**

 * Indicates the status of incoming data on a #DBusConnection. This determines whether

 * dbus_connection_dispatch() needs to be called.

 */

typedef enum

{

  DBUS_DISPATCH_DATA_REMAINS,  /**< There is more data to potentially convert to messages. */

  DBUS_DISPATCH_COMPLETE,      /**< All currently available data has been processed. */

  DBUS_DISPATCH_NEED_MEMORY    /**< More memory is needed to continue. */

} DBusDispatchStatus;

/** Called when libdbus needs a new watch to be monitored by the main

 * loop. Returns #FALSE if it lacks enough memory to add the

 * watch. Set by dbus_connection_set_watch_functions() or

 * dbus_server_set_watch_functions().

 */

typedef dbus_bool_t (* DBusAddWatchFunction)       (DBusWatch      *watch,

                                                    void           *data);

/** Called when dbus_watch_get_enabled() may return a different value

 *  than it did before.  Set by dbus_connection_set_watch_functions()

 *  or dbus_server_set_watch_functions().

 */

typedef void        (* DBusWatchToggledFunction)   (DBusWatch      *watch,

                                                    void           *data);

/** Called when libdbus no longer needs a watch to be monitored by the

 * main loop. Set by dbus_connection_set_watch_functions() or

 * dbus_server_set_watch_functions().

 */

typedef void        (* DBusRemoveWatchFunction)    (DBusWatch      *watch,

                                                    void           *data);

/** Called when libdbus needs a new timeout to be monitored by the main

 * loop. Returns #FALSE if it lacks enough memory to add the

 * watch. Set by dbus_connection_set_timeout_functions() or

 * dbus_server_set_timeout_functions().

 */

typedef dbus_bool_t (* DBusAddTimeoutFunction)     (DBusTimeout    *timeout,

                                                    void           *data);

/** Called when dbus_timeout_get_enabled() may return a different

 * value than it did before.

 * Set by dbus_connection_set_timeout_functions() or

 * dbus_server_set_timeout_functions().

 */

typedef void        (* DBusTimeoutToggledFunction) (DBusTimeout    *timeout,

                                                    void           *data);

/** Called when libdbus no longer needs a timeout to be monitored by the

 * main loop. Set by dbus_connection_set_timeout_functions() or

 * dbus_server_set_timeout_functions().

 */

typedef void        (* DBusRemoveTimeoutFunction)  (DBusTimeout    *timeout,

                                                    void           *data);

/** Called when the return value of dbus_connection_get_dispatch_status()

 * may have changed. Set with dbus_connection_set_dispatch_status_function().

 */

typedef void        (* DBusDispatchStatusFunction) (DBusConnection *connection,

                                                    DBusDispatchStatus new_status,

                                                    void           *data);

/**

 * Called when the main loop's thread should be notified that there's now work

 * to do. Set with dbus_connection_set_wakeup_main_function().

 */

typedef void        (* DBusWakeupMainFunction)     (void           *data);

/**

 * Called during authentication on UNIX systems to check whether the given

 * user ID is allowed to connect. Never called on Windows. Set with

 * dbus_connection_set_unix_user_function().

 */ 

typedef dbus_bool_t (* DBusAllowUnixUserFunction)  (DBusConnection *connection,

                                                    unsigned long   uid,

                                                    void           *data);

/**

 * Called when a pending call now has a reply available. Set with

 * dbus_pending_call_set_notify().

 */

typedef void (* DBusPendingCallNotifyFunction) (DBusPendingCall *pending,

                                                void            *user_data);

/**

 * Called when a message needs to be handled. The result indicates whether or

 * not more handlers should be run. Set with dbus_connection_add_filter().

 */

typedef DBusHandlerResult (* DBusHandleMessageFunction) (DBusConnection     *connection,

                                                         DBusMessage        *message,

                                                         void               *user_data);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

DBusConnection*    dbus_connection_open                         (const char                 *address,

                                                                 DBusError                  *error);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

DBusConnection*    dbus_connection_open_private                 (const char                 *address,

                                                                 DBusError                  *error);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

DBusConnection*    dbus_connection_ref                          (DBusConnection             *connection);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void               dbus_connection_unref                        (DBusConnection             *connection);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void               dbus_connection_close                        (DBusConnection             *connection);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t        dbus_connection_get_is_connected             (DBusConnection             *connection);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t        dbus_connection_get_is_authenticated         (DBusConnection             *connection);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void               dbus_connection_set_exit_on_disconnect       (DBusConnection             *connection,

                                                                 dbus_bool_t                 exit_on_disconnect);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void               dbus_connection_flush                        (DBusConnection             *connection);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t        dbus_connection_read_write_dispatch          (DBusConnection             *connection,

                                                                 int                         timeout_milliseconds);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t        dbus_connection_read_write                   (DBusConnection             *connection,

                                                                 int                         timeout_milliseconds);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

DBusMessage*       dbus_connection_borrow_message               (DBusConnection             *connection);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void               dbus_connection_return_message               (DBusConnection             *connection,

                                                                 DBusMessage                *message);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void               dbus_connection_steal_borrowed_message       (DBusConnection             *connection,

                                                                 DBusMessage                *message);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

DBusMessage*       dbus_connection_pop_message                  (DBusConnection             *connection);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

DBusDispatchStatus dbus_connection_get_dispatch_status          (DBusConnection             *connection);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

DBusDispatchStatus dbus_connection_dispatch                     (DBusConnection             *connection);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t        dbus_connection_has_messages_to_send         (DBusConnection *connection);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t        dbus_connection_send                         (DBusConnection             *connection,

                                                                 DBusMessage                *message,

                                                                 dbus_uint32_t              *client_serial);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t        dbus_connection_send_with_reply              (DBusConnection             *connection,

                                                                 DBusMessage                *message,

                                                                 DBusPendingCall           **pending_return,

                                                                 int                         timeout_milliseconds);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

DBusMessage *      dbus_connection_send_with_reply_and_block    (DBusConnection             *connection,

                                                                 DBusMessage                *message,

                                                                 int                         timeout_milliseconds,

                                                                 DBusError                  *error);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t        dbus_connection_set_watch_functions          (DBusConnection             *connection,

                                                                 DBusAddWatchFunction        add_function,

                                                                 DBusRemoveWatchFunction     remove_function,

                                                                 DBusWatchToggledFunction    toggled_function,

                                                                 void                       *data,

                                                                 DBusFreeFunction            free_data_function);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t        dbus_connection_set_timeout_functions        (DBusConnection             *connection,

                                                                 DBusAddTimeoutFunction      add_function,

                                                                 DBusRemoveTimeoutFunction   remove_function,

                                                                 DBusTimeoutToggledFunction  toggled_function,

                                                                 void                       *data,

                                                                 DBusFreeFunction            free_data_function);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void               dbus_connection_set_wakeup_main_function     (DBusConnection             *connection,

                                                                 DBusWakeupMainFunction      wakeup_main_function,

                                                                 void                       *data,

                                                                 DBusFreeFunction            free_data_function);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void               dbus_connection_set_dispatch_status_function (DBusConnection             *connection,

                                                                 DBusDispatchStatusFunction  function,

                                                                 void                       *data,

                                                                 DBusFreeFunction            free_data_function);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t        dbus_connection_get_unix_user                (DBusConnection             *connection,

                                                                 unsigned long              *uid);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t        dbus_connection_get_unix_process_id          (DBusConnection             *connection,

                                                                 unsigned long              *pid);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void               dbus_connection_set_unix_user_function       (DBusConnection             *connection,

                                                                 DBusAllowUnixUserFunction   function,

                                                                 void                       *data,

                                                                 DBusFreeFunction            free_data_function);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void               dbus_connection_set_route_peer_messages      (DBusConnection             *connection,

                                                                 dbus_bool_t                 value);

/* Filters */

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t dbus_connection_add_filter    (DBusConnection            *connection,

                                           DBusHandleMessageFunction  function,

                                           void                      *user_data,

                                           DBusFreeFunction           free_data_function);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void        dbus_connection_remove_filter (DBusConnection            *connection,

                                           DBusHandleMessageFunction  function,

                                           void                      *user_data);

/* Other */

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t dbus_connection_allocate_data_slot (dbus_int32_t     *slot_p);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void        dbus_connection_free_data_slot     (dbus_int32_t     *slot_p);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t dbus_connection_set_data           (DBusConnection   *connection,

                                                dbus_int32_t      slot,

                                                void             *data,

                                                DBusFreeFunction  free_data_func);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void*       dbus_connection_get_data           (DBusConnection   *connection,

                                                dbus_int32_t      slot);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void        dbus_connection_set_change_sigpipe (dbus_bool_t       will_modify_sigpipe); 

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void dbus_connection_set_max_message_size  (DBusConnection *connection,

                                            long            size);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

long dbus_connection_get_max_message_size  (DBusConnection *connection);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void dbus_connection_set_max_received_size (DBusConnection *connection,

                                            long            size);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

long dbus_connection_get_max_received_size (DBusConnection *connection);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

long dbus_connection_get_outgoing_size     (DBusConnection *connection);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

DBusPreallocatedSend* dbus_connection_preallocate_send       (DBusConnection       *connection);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void                  dbus_connection_free_preallocated_send (DBusConnection       *connection,

                                                              DBusPreallocatedSend *preallocated);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void                  dbus_connection_send_preallocated      (DBusConnection       *connection,

                                                              DBusPreallocatedSend *preallocated,

                                                              DBusMessage          *message,

                                                              dbus_uint32_t        *client_serial);

/* Object tree functionality */

/**

 * Called when a #DBusObjectPathVTable is unregistered (or its connection is freed).

 * Found in #DBusObjectPathVTable.

 */

typedef void              (* DBusObjectPathUnregisterFunction) (DBusConnection  *connection,

                                                                void            *user_data);

/**

 * Called when a message is sent to a registered object path. Found in

 * #DBusObjectPathVTable which is registered with dbus_connection_register_object_path()

 * or dbus_connection_register_fallback().

 */

typedef DBusHandlerResult (* DBusObjectPathMessageFunction)    (DBusConnection  *connection,

                                                                DBusMessage     *message,

                                                                void            *user_data);

/**

 * Virtual table that must be implemented to handle a portion of the

 * object path hierarchy. Attach the vtable to a particular path using

 * dbus_connection_register_object_path() or

 * dbus_connection_register_fallback().

 */

struct DBusObjectPathVTable

{

  DBusObjectPathUnregisterFunction   unregister_function; /**< Function to unregister this handler */

  DBusObjectPathMessageFunction      message_function; /**< Function to handle messages */

  void (* dbus_internal_pad1) (void *); /**< Reserved for future expansion */

  void (* dbus_internal_pad2) (void *); /**< Reserved for future expansion */

  void (* dbus_internal_pad3) (void *); /**< Reserved for future expansion */

  void (* dbus_internal_pad4) (void *); /**< Reserved for future expansion */

};

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t dbus_connection_register_object_path   (DBusConnection              *connection,

                                                    const char                  *path,

                                                    const DBusObjectPathVTable  *vtable,

                                                    void                        *user_data);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t dbus_connection_register_fallback      (DBusConnection              *connection,

                                                    const char                  *path,

                                                    const DBusObjectPathVTable  *vtable,

                                                    void                        *user_data);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t dbus_connection_unregister_object_path (DBusConnection              *connection,

                                                    const char                  *path);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t dbus_connection_get_object_path_data   (DBusConnection              *connection,

                                                    const char                  *path,

                                                    void                       **data_p);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t dbus_connection_list_registered        (DBusConnection              *connection,

                                                    const char                  *parent_path,

                                                    char                      ***child_entries);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t dbus_connection_get_unix_fd            (DBusConnection              *connection,

                                                    int                         *fd);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t dbus_connection_get_socket             (DBusConnection              *connection,

                                                    int                         *fd);

/** @} */

/**

 * @addtogroup DBusWatch

 * @{

 */

#ifdef __SYMBIAN32__

IMPORT_C

#endif

int          dbus_watch_get_fd      (DBusWatch        *watch);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

unsigned int dbus_watch_get_flags   (DBusWatch        *watch);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void*        dbus_watch_get_data    (DBusWatch        *watch);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void         dbus_watch_set_data    (DBusWatch        *watch,

                                     void             *data,

                                     DBusFreeFunction  free_data_function);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t  dbus_watch_handle      (DBusWatch        *watch,

                                     unsigned int      flags);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t  dbus_watch_get_enabled (DBusWatch        *watch);

/** @} */

/**

 * @addtogroup DBusTimeout

 * @{

 */

#ifdef __SYMBIAN32__

IMPORT_C

#endif

int         dbus_timeout_get_interval (DBusTimeout      *timeout);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void*       dbus_timeout_get_data     (DBusTimeout      *timeout);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

void        dbus_timeout_set_data     (DBusTimeout      *timeout,

                                       void             *data,

                                       DBusFreeFunction  free_data_function);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t dbus_timeout_handle       (DBusTimeout      *timeout);

#ifdef __SYMBIAN32__

IMPORT_C

#endif

dbus_bool_t dbus_timeout_get_enabled  (DBusTimeout      *timeout);

/** @} */

DBUS_END_DECLS

#endif /* DBUS_CONNECTION_H */