526 lines
26 KiB
C++
526 lines
26 KiB
C++
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
|
|
/* dbus-connection.h DBusConnection object
|
|
*
|
|
* Copyright (C) 2002, 2003 Red Hat Inc.
|
|
*
|
|
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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-macros.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()).
|
|
*/
|
|
/* Internal to libdbus, there is also _DBUS_WATCH_NVAL in dbus-watch.h */
|
|
} 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 to check whether the given UNIX user
|
|
* ID is allowed to connect, if the client tried to auth as a UNIX
|
|
* user ID. Normally on Windows this would never happen. Set with
|
|
* dbus_connection_set_unix_user_function().
|
|
*/
|
|
typedef dbus_bool_t (* DBusAllowUnixUserFunction) (DBusConnection *connection,
|
|
unsigned long uid,
|
|
void *data);
|
|
|
|
/**
|
|
* Called during authentication to check whether the given Windows user
|
|
* ID is allowed to connect, if the client tried to auth as a Windows
|
|
* user ID. Normally on UNIX this would never happen. Set with
|
|
* dbus_connection_set_windows_user_function().
|
|
*/
|
|
typedef dbus_bool_t (* DBusAllowWindowsUserFunction) (DBusConnection *connection,
|
|
const char *user_sid,
|
|
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);
|
|
DBUS_EXPORT
|
|
DBusConnection* dbus_connection_open (const char *address,
|
|
DBusError *error);
|
|
DBUS_EXPORT
|
|
DBusConnection* dbus_connection_open_private (const char *address,
|
|
DBusError *error);
|
|
DBUS_EXPORT
|
|
DBusConnection* dbus_connection_ref (DBusConnection *connection);
|
|
DBUS_EXPORT
|
|
void dbus_connection_unref (DBusConnection *connection);
|
|
DBUS_EXPORT
|
|
void dbus_connection_close (DBusConnection *connection);
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_connection_get_is_connected (DBusConnection *connection);
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_connection_get_is_authenticated (DBusConnection *connection);
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_connection_get_is_anonymous (DBusConnection *connection);
|
|
DBUS_EXPORT
|
|
char* dbus_connection_get_server_id (DBusConnection *connection);
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_connection_can_send_type (DBusConnection *connection,
|
|
int type);
|
|
|
|
DBUS_EXPORT
|
|
void dbus_connection_set_exit_on_disconnect (DBusConnection *connection,
|
|
dbus_bool_t exit_on_disconnect);
|
|
DBUS_EXPORT
|
|
void dbus_connection_flush (DBusConnection *connection);
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_connection_read_write_dispatch (DBusConnection *connection,
|
|
int timeout_milliseconds);
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_connection_read_write (DBusConnection *connection,
|
|
int timeout_milliseconds);
|
|
DBUS_EXPORT
|
|
DBusMessage* dbus_connection_borrow_message (DBusConnection *connection);
|
|
DBUS_EXPORT
|
|
void dbus_connection_return_message (DBusConnection *connection,
|
|
DBusMessage *message);
|
|
DBUS_EXPORT
|
|
void dbus_connection_steal_borrowed_message (DBusConnection *connection,
|
|
DBusMessage *message);
|
|
DBUS_EXPORT
|
|
DBusMessage* dbus_connection_pop_message (DBusConnection *connection);
|
|
DBUS_EXPORT
|
|
DBusDispatchStatus dbus_connection_get_dispatch_status (DBusConnection *connection);
|
|
DBUS_EXPORT
|
|
DBusDispatchStatus dbus_connection_dispatch (DBusConnection *connection);
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_connection_has_messages_to_send (DBusConnection *connection);
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_connection_send (DBusConnection *connection,
|
|
DBusMessage *message,
|
|
dbus_uint32_t *client_serial);
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_connection_send_with_reply (DBusConnection *connection,
|
|
DBusMessage *message,
|
|
DBusPendingCall **pending_return,
|
|
int timeout_milliseconds);
|
|
DBUS_EXPORT
|
|
DBusMessage * dbus_connection_send_with_reply_and_block (DBusConnection *connection,
|
|
DBusMessage *message,
|
|
int timeout_milliseconds,
|
|
DBusError *error);
|
|
DBUS_EXPORT
|
|
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);
|
|
DBUS_EXPORT
|
|
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);
|
|
DBUS_EXPORT
|
|
void dbus_connection_set_wakeup_main_function (DBusConnection *connection,
|
|
DBusWakeupMainFunction wakeup_main_function,
|
|
void *data,
|
|
DBusFreeFunction free_data_function);
|
|
DBUS_EXPORT
|
|
void dbus_connection_set_dispatch_status_function (DBusConnection *connection,
|
|
DBusDispatchStatusFunction function,
|
|
void *data,
|
|
DBusFreeFunction free_data_function);
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_connection_get_unix_user (DBusConnection *connection,
|
|
unsigned long *uid);
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_connection_get_unix_process_id (DBusConnection *connection,
|
|
unsigned long *pid);
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_connection_get_adt_audit_session_data (DBusConnection *connection,
|
|
void **data,
|
|
dbus_int32_t *data_size);
|
|
DBUS_EXPORT
|
|
void dbus_connection_set_unix_user_function (DBusConnection *connection,
|
|
DBusAllowUnixUserFunction function,
|
|
void *data,
|
|
DBusFreeFunction free_data_function);
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_connection_get_windows_user (DBusConnection *connection,
|
|
char **windows_sid_p);
|
|
DBUS_EXPORT
|
|
void dbus_connection_set_windows_user_function (DBusConnection *connection,
|
|
DBusAllowWindowsUserFunction function,
|
|
void *data,
|
|
DBusFreeFunction free_data_function);
|
|
DBUS_EXPORT
|
|
void dbus_connection_set_allow_anonymous (DBusConnection *connection,
|
|
dbus_bool_t value);
|
|
DBUS_EXPORT
|
|
void dbus_connection_set_route_peer_messages (DBusConnection *connection,
|
|
dbus_bool_t value);
|
|
|
|
|
|
/* Filters */
|
|
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_connection_add_filter (DBusConnection *connection,
|
|
DBusHandleMessageFunction function,
|
|
void *user_data,
|
|
DBusFreeFunction free_data_function);
|
|
DBUS_EXPORT
|
|
void dbus_connection_remove_filter (DBusConnection *connection,
|
|
DBusHandleMessageFunction function,
|
|
void *user_data);
|
|
|
|
|
|
/* Other */
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_connection_allocate_data_slot (dbus_int32_t *slot_p);
|
|
DBUS_EXPORT
|
|
void dbus_connection_free_data_slot (dbus_int32_t *slot_p);
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_connection_set_data (DBusConnection *connection,
|
|
dbus_int32_t slot,
|
|
void *data,
|
|
DBusFreeFunction free_data_func);
|
|
DBUS_EXPORT
|
|
void* dbus_connection_get_data (DBusConnection *connection,
|
|
dbus_int32_t slot);
|
|
|
|
DBUS_EXPORT
|
|
void dbus_connection_set_change_sigpipe (dbus_bool_t will_modify_sigpipe);
|
|
|
|
DBUS_EXPORT
|
|
void dbus_connection_set_max_message_size (DBusConnection *connection,
|
|
long size);
|
|
DBUS_EXPORT
|
|
long dbus_connection_get_max_message_size (DBusConnection *connection);
|
|
DBUS_EXPORT
|
|
void dbus_connection_set_max_received_size (DBusConnection *connection,
|
|
long size);
|
|
DBUS_EXPORT
|
|
long dbus_connection_get_max_received_size (DBusConnection *connection);
|
|
|
|
DBUS_EXPORT
|
|
void dbus_connection_set_max_message_unix_fds (DBusConnection *connection,
|
|
long n);
|
|
DBUS_EXPORT
|
|
long dbus_connection_get_max_message_unix_fds (DBusConnection *connection);
|
|
DBUS_EXPORT
|
|
void dbus_connection_set_max_received_unix_fds(DBusConnection *connection,
|
|
long n);
|
|
DBUS_EXPORT
|
|
long dbus_connection_get_max_received_unix_fds(DBusConnection *connection);
|
|
|
|
DBUS_EXPORT
|
|
long dbus_connection_get_outgoing_size (DBusConnection *connection);
|
|
DBUS_EXPORT
|
|
long dbus_connection_get_outgoing_unix_fds (DBusConnection *connection);
|
|
|
|
DBUS_EXPORT
|
|
DBusPreallocatedSend* dbus_connection_preallocate_send (DBusConnection *connection);
|
|
DBUS_EXPORT
|
|
void dbus_connection_free_preallocated_send (DBusConnection *connection,
|
|
DBusPreallocatedSend *preallocated);
|
|
DBUS_EXPORT
|
|
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 */
|
|
};
|
|
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_connection_try_register_object_path (DBusConnection *connection,
|
|
const char *path,
|
|
const DBusObjectPathVTable *vtable,
|
|
void *user_data,
|
|
DBusError *error);
|
|
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_connection_register_object_path (DBusConnection *connection,
|
|
const char *path,
|
|
const DBusObjectPathVTable *vtable,
|
|
void *user_data);
|
|
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_connection_try_register_fallback (DBusConnection *connection,
|
|
const char *path,
|
|
const DBusObjectPathVTable *vtable,
|
|
void *user_data,
|
|
DBusError *error);
|
|
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_connection_register_fallback (DBusConnection *connection,
|
|
const char *path,
|
|
const DBusObjectPathVTable *vtable,
|
|
void *user_data);
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_connection_unregister_object_path (DBusConnection *connection,
|
|
const char *path);
|
|
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_connection_get_object_path_data (DBusConnection *connection,
|
|
const char *path,
|
|
void **data_p);
|
|
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_connection_list_registered (DBusConnection *connection,
|
|
const char *parent_path,
|
|
char ***child_entries);
|
|
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_connection_get_unix_fd (DBusConnection *connection,
|
|
int *fd);
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_connection_get_socket (DBusConnection *connection,
|
|
int *fd);
|
|
|
|
/**
|
|
* Clear a variable or struct member that contains a #DBusConnection.
|
|
* If it does not contain #NULL, the connection that was previously
|
|
* there is unreferenced with dbus_connection_unref().
|
|
*
|
|
* For example, this function and the similar functions for
|
|
* other reference-counted types can be used in code like this:
|
|
*
|
|
* @code
|
|
* DBusConnection *conn = NULL;
|
|
* struct { ...; DBusMessage *m; ... } *larger_structure = ...;
|
|
*
|
|
* ... code that might set conn or m to be non-NULL ...
|
|
*
|
|
* dbus_clear_connection (&conn);
|
|
* dbus_clear_message (&larger_structure->m);
|
|
* @endcode
|
|
*
|
|
* @param pointer_to_connection A pointer to a variable or struct member.
|
|
* pointer_to_connection must not be #NULL, but *pointer_to_connection
|
|
* may be #NULL.
|
|
*/
|
|
static inline void
|
|
dbus_clear_connection (DBusConnection **pointer_to_connection)
|
|
{
|
|
_dbus_clear_pointer_impl (DBusConnection, pointer_to_connection,
|
|
dbus_connection_unref);
|
|
}
|
|
|
|
/** @} */
|
|
|
|
|
|
/**
|
|
* @addtogroup DBusWatch
|
|
* @{
|
|
*/
|
|
|
|
#ifndef DBUS_DISABLE_DEPRECATED
|
|
DBUS_EXPORT
|
|
DBUS_DEPRECATED int dbus_watch_get_fd (DBusWatch *watch);
|
|
#endif
|
|
|
|
DBUS_EXPORT
|
|
int dbus_watch_get_unix_fd (DBusWatch *watch);
|
|
DBUS_EXPORT
|
|
int dbus_watch_get_socket (DBusWatch *watch);
|
|
DBUS_EXPORT
|
|
unsigned int dbus_watch_get_flags (DBusWatch *watch);
|
|
DBUS_EXPORT
|
|
void* dbus_watch_get_data (DBusWatch *watch);
|
|
DBUS_EXPORT
|
|
void dbus_watch_set_data (DBusWatch *watch,
|
|
void *data,
|
|
DBusFreeFunction free_data_function);
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_watch_handle (DBusWatch *watch,
|
|
unsigned int flags);
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_watch_get_enabled (DBusWatch *watch);
|
|
|
|
/** @} */
|
|
|
|
/**
|
|
* @addtogroup DBusTimeout
|
|
* @{
|
|
*/
|
|
|
|
DBUS_EXPORT
|
|
int dbus_timeout_get_interval (DBusTimeout *timeout);
|
|
DBUS_EXPORT
|
|
void* dbus_timeout_get_data (DBusTimeout *timeout);
|
|
DBUS_EXPORT
|
|
void dbus_timeout_set_data (DBusTimeout *timeout,
|
|
void *data,
|
|
DBusFreeFunction free_data_function);
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_timeout_handle (DBusTimeout *timeout);
|
|
DBUS_EXPORT
|
|
dbus_bool_t dbus_timeout_get_enabled (DBusTimeout *timeout);
|
|
|
|
/** @} */
|
|
|
|
DBUS_END_DECLS
|
|
|
|
#endif /* DBUS_CONNECTION_H */
|