Functions | |
DBusConnection * | dbus_bus_get (DBusBusType type, DBusError *error) |
Connects to a bus daemon and registers the client with it. | |
dbus_bool_t | dbus_bus_register (DBusConnection *connection, DBusError *error) |
Registers a connection with the bus. | |
dbus_bool_t | dbus_bus_set_unique_name (DBusConnection *connection, const char *unique_name) |
Sets the unique name of the connection. | |
const char * | dbus_bus_get_unique_name (DBusConnection *connection) |
Gets the unique name of the connection. | |
unsigned long | dbus_bus_get_unix_user (DBusConnection *connection, const char *name, DBusError *error) |
Asks the bus to return the uid of the named connection. | |
int | dbus_bus_request_name (DBusConnection *connection, const char *name, unsigned int flags, DBusError *error) |
Asks the bus to assign the given name to this connection by invoking the RequestName method on the bus. | |
dbus_bool_t | dbus_bus_name_has_owner (DBusConnection *connection, const char *name, DBusError *error) |
Checks whether a certain name has an owner. | |
dbus_bool_t | dbus_bus_start_service_by_name (DBusConnection *connection, const char *name, dbus_uint32_t flags, dbus_uint32_t *result, DBusError *error) |
Starts a service that will request ownership of the given name. | |
void | dbus_bus_add_match (DBusConnection *connection, const char *rule, DBusError *error) |
Adds a match rule to match messages going through the message bus. | |
void | dbus_bus_remove_match (DBusConnection *connection, const char *rule, DBusError *error) |
Removes a previously-added match rule "by value" (the most recently-added identical rule gets removed). |
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Adds a match rule to match messages going through the message bus. The "rule" argument is the string form of a match rule. If you pass NULL for the error, this function will not block; the match thus won't be added until you flush the connection, and if there's an error adding the match (only possible error is lack of resources in the bus), you won't find out about it. If you pass non-NULL for the error this function will block until it gets a reply. Normal API conventions would have the function return a boolean value indicating whether the error was set, but that would require blocking always to determine the return value.
Definition at line 936 of file dbus-bus.c. References dbus_message_append_args(), dbus_message_new_method_call(), dbus_message_unref(), and NULL. |
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Connects to a bus daemon and registers the client with it. If a connection to the bus already exists, then that connection is returned. Caller owns a reference to the bus.
Definition at line 324 of file dbus-bus.c. References _dbus_assert, _DBUS_LOCK, _DBUS_UNLOCK, dbus_bus_register(), dbus_connection_close(), dbus_connection_open(), dbus_connection_ref(), dbus_connection_set_exit_on_disconnect(), dbus_connection_unref(), dbus_set_error(), BusData::is_well_known, N_BUS_TYPES, NULL, and TRUE. Referenced by dbus_g_bus_get(). |
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Gets the unique name of the connection. Only possible after the connection has been registered with the message bus. The name remains valid for the duration of the connection and should not be freed by the caller.
Definition at line 536 of file dbus-bus.c. References NULL, and BusData::unique_name. |
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Asks the bus to return the uid of the named connection.
Definition at line 559 of file dbus-bus.c. References dbus_connection_send_with_reply_and_block(), dbus_message_append_args(), dbus_message_get_args(), dbus_message_new_method_call(), dbus_message_unref(), dbus_set_error_from_message(), and NULL. |
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Checks whether a certain name has an owner.
Definition at line 762 of file dbus-bus.c. References dbus_connection_send_with_reply_and_block(), dbus_message_append_args(), dbus_message_get_args(), dbus_message_new_method_call(), dbus_message_unref(), FALSE, and NULL. |
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Registers a connection with the bus. This must be the first thing an application does when connecting to the message bus. If registration succeeds, the unique name will be set, and can be obtained using dbus_bus_get_unique_name().
Definition at line 424 of file dbus-bus.c. References _dbus_strdup(), _dbus_warn(), dbus_connection_send_with_reply_and_block(), dbus_message_get_args(), dbus_message_new_method_call(), dbus_message_unref(), dbus_set_error_from_message(), FALSE, NULL, TRUE, and BusData::unique_name. Referenced by dbus_bus_get(). |
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Removes a previously-added match rule "by value" (the most recently-added identical rule gets removed). The "rule" argument is the string form of a match rule. If you pass NULL for the error, this function will not block; otherwise it will. See detailed explanation in docs for dbus_bus_add_match().
Definition at line 982 of file dbus-bus.c. References dbus_message_append_args(), dbus_message_new_method_call(), dbus_message_unref(), and NULL. |
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Asks the bus to assign the given name to this connection by invoking the RequestName method on the bus. This method is fully documented in the D-BUS specification. For quick reference, the flags and result codes are discussed here, but the specification is the canonical version of this information. The DBUS_NAME_FLAG_PROHIBIT_REPLACEMENT flag indicates that if the name is successfully requested, other applications will not be able to take over the name. i.e. the name's owner (the application calling this function) must let go of the name, it will not lose it involuntarily. The DBUS_NAME_FLAG_REPLACE_EXISTING flag indicates that the caller would like to take over the name from the current owner. If the current name owner used DBUS_NAME_FLAG_PROHIBIT_REPLACEMENT then this flag indicates that the caller would like to be placed in the queue to own the name when the current owner lets go. If no flags are given, an application will receive the requested name only if the name is currently unowned; and it will give up the name if another application asks to take it over using DBUS_NAME_FLAG_REPLACE_EXISTING. This function returns a result code. The possible result codes are as follows. DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER means that the name had no existing owner, and the caller is now the primary owner; or that the name had an owner, and the caller specified DBUS_NAME_FLAG_REPLACE_EXISTING, and the current owner did not specify DBUS_NAME_FLAG_PROHIBIT_REPLACEMENT. DBUS_REQUEST_NAME_REPLY_IN_QUEUE happens only if the current owner specified DBUS_NAME_FLAG_PROHIBIT_REPLACEMENT and the caller specified DBUS_NAME_FLAG_REPLACE_EXISTING. In this case the caller ends up in a queue to own the name after the current owner gives it up. DBUS_REQUEST_NAME_REPLY_EXISTS happens if the name has an owner already and DBUS_NAME_FLAG_REPLACE_EXISTING was not specified. DBUS_REQUEST_NAME_REPLY_ALREADY_OWNER happens if an application requests a name it already owns. When a service represents an application, say "text editor," then it should specify DBUS_NAME_FLAG_PROHIBIT_REPLACEMENT if it wants the first editor started to be the user's editor vs. the last one started. Then any editor that can be the user's editor should specify DBUS_NAME_FLAG_REPLACE_EXISTING to either take over (last-started-wins) or be queued up (first-started-wins) according to whether DBUS_NAME_FLAG_PROHIBIT_REPLACEMENT was given.
Definition at line 687 of file dbus-bus.c. References dbus_connection_send_with_reply_and_block(), dbus_message_append_args(), dbus_message_get_args(), dbus_message_new_method_call(), dbus_message_unref(), dbus_set_error_from_message(), and NULL. |
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Sets the unique name of the connection. Can only be used if you registered with the bus manually (i.e. if you did not call dbus_bus_register()). Can only be called once per connection.
Definition at line 507 of file dbus-bus.c. References _dbus_assert, _dbus_strdup(), FALSE, NULL, and BusData::unique_name. |
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Starts a service that will request ownership of the given name. The returned result will be one of be one of DBUS_START_REPLY_SUCCESS or DBUS_START_REPLY_ALREADY_RUNNING if successful. Pass NULL if you don't care about the result. The flags parameter is for future expansion, currently you should specify 0.
Definition at line 832 of file dbus-bus.c. References dbus_connection_send_with_reply_and_block(), dbus_message_append_args(), dbus_message_get_args(), dbus_message_new_method_call(), dbus_message_unref(), dbus_set_error_from_message(), FALSE, NULL, and TRUE. |