Fix some annoying DBusString API and fix all affected code.
* dbus/dbus-string.c (_dbus_string_init): get rid of annoying
max_length argument
(_dbus_string_get_data): change to return string instead of using
an out param
(_dbus_string_get_const_data): ditto
(_dbus_string_get_data_len): ditto
(_dbus_string_get_const_data_len): ditto
* dbus/dbus-transport-unix.c (_dbus_transport_new_for_domain_socket)
(_dbus_transport_new_for_tcp_socket): these didn't need the "server"
argument since they are always client side
* dbus/dbus-server.c (dbus_server_get_address): new function
* bus/main.c (main): take the configuration file as an argument.
* test/data/valid-config-files/debug-allow-all.conf: new file to
use with dispatch.c tests for example
* bus/test-main.c (main): require test data dir
* bus/bus.c (bus_context_new): change this to take a
configuration file name as argument
* doc/config-file.txt (Elements): add <servicedir>
* bus/system.conf, bus/session.conf: new files
* dbus/dbus-bus.c (dbus_bus_get): look for system bus on
well-known socket if none set
* configure.in: create system.conf and session.conf
* bus/test.c (bus_test_flush_bus): remove the sleep from here,
I think it may have just been superstition. Not sure.
* dbus/dbus-string.c (_dbus_string_base64_decode): catch some OOM
failures that were not being handled.
* dbus/dbus-auth.c (process_auth): fix a memleak in OOM handling
* dbus/dbus-memory.c: add ability to set number of mallocs in a
row that will fail on out-of-memory.
* dbus/dbus-internals.c (_dbus_test_oom_handling): convenience
function for testing out-of-memory handling.
* bus/config-loader-expat.c (memsuite): don't wrap the dbus
allocation functions, they do map exactly to the expat ones.
* throughout - add more _DBUS_ASSERT_ERROR_IS_CLEAR
* configure.in: add --with-xml option to specify XML library,
right now only libxml is supported.
* bus/config-loader-libxml.c, config-parser.c: sync some minor
nonworking code between home and work, still just stubs
* dbus/dbus-sysdeps.c (_dbus_set_fd_nonblocking): move to this
file
* dbus/dbus-errors.c (dbus_set_error, dbus_set_error_const): allow
NULL argument for "message" if the error is a well-known one,
fill in a generic message in this case.
* dbus/dbus-errors.h (DBusResultCode): Kill DBusResultCode in
favor of DBusError
* bus/test.c (bus_test_flush_bus): add
* bus/policy.c (bus_policy_test): test code stub
* bus/dispatch.c: (bus_dispatch):
Refetch the service name since it may have been reallocated
when dbus_message_set_sender was called.
* dbus/dbus-sysdeps.c: (_dbus_accept):
Add address and address length variables and use them to stop
valgrind from complaining.
* dbus/dbus-watch.c (_dbus_watch_new): handle failure to malloc
the watch
* dbus/dbus-server-debug-pipe.c (_dbus_transport_debug_pipe_new):
add some missing dbus_set_result
* bus/dispatch.c (bus_dispatch_add_connection): handle failure to
alloc the DBusMessageHandler
* dbus/dbus-transport.c (_dbus_transport_disconnect): don't ref
the transport here, since we call this from the finalizer; it
resulted in a double-finalize.
* dbus/dbus-transport.c (_dbus_transport_disconnect): fix a bug
where we tried to use transport->connection that was NULL,
happened when transport was disconnected early on due to OOM
* bus/*.c: adapt to handle OOM for watches/timeouts
* dbus/dbus-transport-unix.c: port to handle OOM during
watch handling
* dbus/dbus-auth.c (_dbus_auth_get_unused_bytes): return a
reference to unused bytes instead of a copy
* dbus/dbus-server.c (dbus_server_handle_watch): return FALSE for
out of memory
* dbus/dbus-connection.c (dbus_connection_handle_watch): return
FALSE on OOM
* dbus/dbus-timeout.c (dbus_timeout_handle): return FALSE for out
of memory
* dbus/dbus-bus.c (ensure_bus_data): handle failure to set
connection data
* dbus/dbus-memory.c (_dbus_initialize_malloc_debug): support
DBUS_MALLOC_BACKTRACES to print trace when failing an alloc
* dbus/dbus-string.c (_dbus_string_validate_utf8): oops, unbreak
this. always run the test suite before commit...
* bus/*: adapt to DBusConnection API changes
* glib/dbus-gmain.c: adapt to DBusConnection API changes,
requires renaming stuff to avoid dbus_connection_dispatch name
conflict.
* dbus/dbus-transport.c (_dbus_transport_queue_messages): new
function
* dbus/dbus-message.c (_dbus_message_loader_queue_messages):
separate from _dbus_message_loader_return_buffer()
* dbus/dbus-connection.c (dbus_connection_get_n_messages): remove
this, because it's now always broken to use; the number of
messages in queue vs. the number still buffered by the message
loader is undefined/meaningless. Should use
dbus_connection_get_dispatch_state().
(dbus_connection_dispatch): rename from
dbus_connection_dispatch_message
Oops - test code was only testing failure of around 30 of the
mallocs in the test path, but it turns out there are 500+
mallocs. I believe this was due to misguided linking setup such
that there was one copy of dbus_malloc etc. in the daemon and one
in the shared lib, and only daemon mallocs were tested. In any
case, the test case now tests all 500+ mallocs, and doesn't pass
yet, though there are lots of fixes in this patch.
* dbus/dbus-connection.c (dbus_connection_dispatch_message): fix
this so that it doesn't need to allocate memory, since it
has no way of indicating failure due to OOM (and would be
annoying if it did).
* dbus/dbus-list.c (_dbus_list_pop_first_link): new function
* bus/Makefile.am: rearrange to create two self-contained
libraries, to avoid having libraries with overlapping symbols.
that was resulting in weirdness, e.g. I'm pretty sure there
were two copies of global static variables.
* dbus/dbus-internals.c: move the malloc debug stuff to
dbus-memory.c
* dbus/dbus-list.c (free_link): free list mempool if it becomes
empty.
* dbus/dbus-memory.c (_dbus_disable_mem_pools): new function
* dbus/dbus-address.c (dbus_parse_address): free list nodes
on failure.
* bus/dispatch.c (bus_dispatch_add_connection): free
message_handler_slot when no longer using it, so
memory leak checkers are happy for the test suite.
* dbus/dbus-server-debug-pipe.c (debug_finalize): free server name
* bus/bus.c (new_connection_callback): disconnect in here if
bus_connections_setup_connection fails.
* bus/connection.c (bus_connections_unref): fix to free the
connections
(bus_connections_setup_connection): if this fails, don't
disconnect the connection, just be sure there are no side
effects.
* dbus/dbus-string.c (undo_alignment): unbreak this
* dbus/dbus-auth.c (_dbus_auth_unref): free some stuff we were
leaking
(_dbus_auth_new): fix the order in which we free strings
on OOM failure
* bus/connection.c (bus_connection_disconnected): fix to
not send ServiceDeleted multiple times in case of memory
allocation failure
* dbus/dbus-bus.c (dbus_bus_get_base_service): new function to
get the base service name
(dbus_bus_register_client): don't return base service name,
instead store it on the DBusConnection and have an accessor
function for it.
(dbus_bus_register_client): rename dbus_bus_register()
* bus/dispatch.c (check_hello_message): verify that other
connections on the bus also got the correct results, not
just the one sending hello
Make it pass the Hello handling test including all OOM codepaths.
Now to do other messages...
* bus/services.c (bus_service_remove_owner): fix crash when
removing owner from an empty list of owners
(bus_registry_ensure): don't leave service in the list of
a connection's owned services if we fail to put the service
in the hash table.
* bus/connection.c (bus_connection_preallocate_oom_error): set
error flag on the OOM error.
* dbus/dbus-connection.c (_dbus_connection_new_for_transport):
handle _dbus_transport_set_connection failure
* dbus/dbus-transport-unix.c (_dbus_transport_new_for_fd): modify
to create watches up front and simply enable/disable them as
needed.
(unix_connection_set): this can now fail on OOM
* dbus/dbus-timeout.c, dbus/dbus-watch.c: add concept
of enabling/disabling a watch or timeout.
* bus/loop.c (bus_loop_iterate): don't touch disabled
watches/timeouts
* glib/dbus-gmain.c: adapt to enable/disable watches and timeouts
* bus/dispatch.c (bus_dispatch_test): OK, now finally actually
write useful test code, after all that futzing around ;-)
Test does not yet pass because we can't handle OOM in
_dbus_transport_messages_pending (basically,
dbus_connection_preallocate_send() does not prealloc the write
watch). To fix this, I think we need to add new stuff to
set_watch_functions, namely a SetEnabled function so we can alloc
the watch earlier, then enable it later.
* dbus/Makefile.am (libdbus_convenience_la_SOURCES): move
dbus-memory.c to the convenience lib
* bus/test.c: rename some static functions to keep them clearly
distinct from stuff in connection.c. Handle client disconnection.
* bus/dispatch.c (bus_dispatch_test): do test using debug-pipe
transport, tests more of the real codepath. Set up clients
with bus_setup_debug_client.
* bus/test.c (bus_setup_debug_client): function to set up debug
"clients" on the main loop
* dbus/dbus-transport.c (_dbus_transport_open): add debug-pipe
support
* dbus/dbus-server.c (dbus_server_listen): add debug-pipe
server type
* dbus/dbus-server-debug.c: support a debug server based on pipes
* dbus/dbus-sysdeps.c (_dbus_full_duplex_pipe): new function
(_dbus_close): new function
* configure.in: check for socketpair
* dbus/dbus-memory.c: add a "detect buffer overwrites on free"
cheesy hack
* dbus/dbus-transport-debug.c: rework this a good bit to be
less complicated. hopefully still works.
* dbus/dbus-server-debug.c (handle_new_client): remove timeout
manually
* glib/dbus-gmain.c (timeout_handler): don't remove timeout
after running it
* dbus/dbus-message.c (dbus_message_copy): rename from
dbus_message_new_from_message, fix it up to copy
all the message fields, add test case
* bus/dispatch.c (bus_dispatch_test): add some more test code,
not quite passing yet
* dbus/dbus-timeout.c (_dbus_timeout_list_set_functions): handle
out of memory
* dbus/dbus-watch.c (_dbus_watch_list_set_functions): handle out
of memory
* dbus/dbus-connection.h: Make AddWatchFunction and
AddTimeoutFunction return a bool so they can fail on out-of-memory
* bus/bus.c (bus_context_new): set up timeout handlers
* bus/connection.c (bus_connections_setup_connection): set up
timeout handlers
* glib/dbus-gmain.c: adapt to the fact that set_functions stuff
can fail
* bus/bus.c (bus_context_new): adapt to changes
* bus/connection.c: adapt to changes
* test/watch.c: adapt to DBusWatch changes
* bus/dispatch.c (bus_dispatch_test): started adding this but
didn't finish
Throughout: purge global variables, introduce BusActivation,
BusConnections, BusRegistry, etc. objects instead.
* bus/bus.h, bus/bus.c: introduce BusContext as a global
message bus object
* test/Makefile.am (TEST_BINARIES): disable bus-test for now,
going to redo this a bit differently I think
Mega-patch that gets the message bus daemon initially handling
out-of-memory. Work still needed. Also lots of random
moving stuff to DBusError instead of ResultCode.
* dbus/dbus-list.c (_dbus_list_length_is_one): new function
* dbus/dbus-connection.c
(dbus_connection_send_with_reply_and_block): use DBusError
* dbus/dbus-bus.c: adapt to API changes, make it use DBusError not
DBusResultCode
* dbus/dbus-connection.c (dbus_connection_send): drop the result
code here, as the only failure possible is OOM.
* bus/connection.c (bus_connection_disconnect):
rename bus_connection_disconnected as it's a notification only
* bus/driver.c (bus_driver_handle_acquire_service): don't free
"name" on get_args failure, should be done by get_args;
don't disconnect client for bad args, just return an error.
(bus_driver_handle_service_exists): ditto
* bus/services.c (bus_services_list): NULL-terminate returned array
* bus/driver.c (bus_driver_send_service_lost)
(bus_driver_send_service_acquired): send messages from driver to a
specific client to the client's unique name, not to the broadcast
service.
* dbus/dbus-message.c (decode_header_data): reject messages that
contain no name field
(_dbus_message_get_client_serial): rename to
dbus_message_get_serial and make public
(_dbus_message_set_serial): rename from set_client_serial
(_dbus_message_set_reply_serial): make public
(_dbus_message_get_reply_serial): make public
* bus/connection.c (bus_connection_foreach): allow stopping
iteration by returning FALSE from foreach function.
* dbus/dbus-connection.c (dbus_connection_send_preallocated)
(dbus_connection_free_preallocated_send)
(dbus_connection_preallocate_send): new API for sending a message
without possibility of malloc failure.
(dbus_connection_send_message): rename to just
dbus_connection_send (and same for whole function family)
* dbus/dbus-errors.c (dbus_error_free): make this reinit the error
* dbus/dbus-sysdeps.c (_dbus_exit): new function
* bus/activation.c: handle/return errors
* dbus/dbus-errors.h: add more DBUS_ERROR #define
* dbus/dbus-sysdeps.c (_dbus_directory_open) (_dbus_file_get_contents)
(_dbus_directory_get_next_file): use DBusError instead of DBusResultCode
(_dbus_result_from_errno): move to this file
* bus/dispatch.c: (bus_dispatch_message_handler):
* dbus/dbus-errors.h:
Return an error if someone tries to send a message to a service
that doesn't exist.
* dbus/dbus-threads.c:
* dbus/dbus-threads.h:
Add condvars. Remove static mutext from API.
Implement static mutexes by initializing them from threads_init.
* glib/dbus-gthread.c:
* qt/dbus-qthread.cpp:
Update with the thread api changes.
* dbus/dbus-list.c:
* dbus/dbus-list.h:
Turn StaticMutex into normal mutex + init function.
Export new functions _dbus_list_alloc_link, _dbus_list_free_link,
_dbus_list_append_link, _dbus_list_prepend_link
* dbus/dbus-sysdeps.c:
* dbus/dbus-sysdeps.h:
New type dbus_atomic_t, and new functions _dbus_atomic_inc,
_dbus_atomic_dec. Only slow fallback implementation at the moment.
* dbus/dbus-protocol.h:
Add DBUS_MESSAGE_LOCAL_DISCONNECT define
* dbus/dbus-message.c:
Make ref/unref atomic.
Fix some docs.
* dbus/dbus-connection-internal.h:
* dbus/dbus-connection.c:
* dbus/dbus-connection.h:
Make threadsafe.
Change _peek to _borrow,_return & _steal_borrowed.
Change disconnect callback to event.
Make dbus_connection_dispatch_messages reentrant.
* dbus/dbus-transport.c:
Don't ref the connection on calls to the transport
implementation.
* dbus/dbus-message-handler.c:
Make threadsafe.
* glib/dbus-gmain.c:
Don't use peek_message anymore
* test/Makefile.am:
* test/debug-thread.c:
* test/debug-thread.h:
Simple thread implementation that asserts() on deadlocks in
single-threaded code.
* test/bus-test.c:
(main) Call debug_threads_init.
* test/watch.c:
Use disconnect message instead of disconnect callback.
* bus/connection.c:
* bus/connection.h:
Don't call dbus_connection_set_disconnect_function. Instead export
bus_connection_disconnect.
* bus/dispatch.c:
Call bus_connection_disconnect when we get a disconnected message.
* bus/dispatch.c: (bus_dispatch_message_handler):
Dispatch messages sent to services.
* bus/driver.c: (bus_driver_send_service_deleted),
(bus_driver_send_service_created), (bus_driver_send_service_lost),
(bus_driver_send_service_acquired):
Add helper functions for sending service related messages.
(bus_driver_send_welcome_message):
Send HELLO_REPLY instead of WELCOME.
(bus_driver_handle_list_services):
Send LIST_SERVICES_REPLY instead of SERVICES.
(bus_driver_handle_own_service),
(bus_driver_handle_service_exists):
New message handlers.
(bus_driver_handle_message):
Invoke new message handlers.
(bus_driver_remove_connection):
Don't remove any services here since that's done automatically
by bus_service_remove_owner now.
* bus/driver.h:
New function signatures.
* bus/services.c: (bus_service_add_owner):
Send ServiceAcquired message if we're the only primary owner.
(bus_service_remove_owner):
Send ServiceAcquired/ServiceLost messages.
(bus_service_set_prohibit_replacement),
(bus_service_get_prohibit_replacement):
Functions for setting prohibit replacement.
(bus_service_has_owner):
New function that checks if a connection is in the owner queue of
a certain service.
* bus/services.h:
Add new function signatures.
* dbus/dbus-list.c: (_dbus_list_test):
Add tests for _dbus_list_remove_last and traversing the list backwards.
* dbus/dbus-list.h:
Fix a typo in _dbus_list_get_prev_link, if we're at the first element we can't
go any further, so return NULL then.
* dbus/dbus-protocol.h:
Add new messages, service flags and service replies.
* bus/Makefile.am:
* bus/connection.c: (connection_disconnect_handler),
(connection_watch_callback), (bus_connection_setup):
* bus/dispatch.c: (send_one_message),
(bus_dispatch_broadcast_message), (bus_dispatch_message_handler),
(bus_dispatch_add_connection), (bus_dispatch_remove_connection):
* bus/dispatch.h:
* bus/driver.c: (bus_driver_send_service_deleted),
(bus_driver_send_service_created), (bus_driver_handle_hello),
(bus_driver_send_welcome_message),
(bus_driver_handle_list_services), (bus_driver_remove_connection),
(bus_driver_handle_message):
* bus/driver.h:
Refactor code, put the message dispatching in its own file. Use
_DBUS_HANDLE_OOM. Also send ServiceDeleted messages when a client
is disconnected.
