The I/O helpers for DBus are based on |RawDBusConnection|'s |Send*| and
|Watch| methods. Moving them out of this class will make them available
to other modules.
The class template |ScopedFreePtrTrais| has been removed. This patch
updates |RawDBusConnection| to not refer to it any longer. Instead, the
provided helper method |empty| is implemented directly.
This patch removes the constant BLUEZ_DBUS_BASE_IFC from the file
RawDBusconnection.cpp. The constant is specific to BlueZ, and that's
where it's located now.
DBusWatcher is a helper for RawDBusConnection. This patch moves
both classes into the same file. Calling RawDBusConnection::Watch
installs a DBusWatcher for the connection.
This patch removes the internal tasks from the implementation of
RawDBusConnection. All calls to RawDBusConnection are invoked on
the I/O thread, so the sender tasks only impose an overhead.
This patch converts DBusWatcher to run on the I/O thread. When a
caller starts DBus, StartDBus creates a new connection and adds
it to the I/O thread's poll loop. DBusWatchers are created and
removed automatically by the DBus libary.
The I/O thread provides all features of the DBus thread. So most
of the existing code has been removed or rewritten. The former
includes the control socket and the DBus thread, the latter is in
the DBusWatcher code.
Using a private DBus connection gives each of its users, such as
Bluetooth, its own connection to the DBus server. This simplifies
the use of DBusWatch structures and ensures that all resources of
a connection are free'd when the connection gets closed.
This patch adds methods for sending DBus messages to the class
RawDBusConnection. There are 3 types of interfaces.
- Send Sends a message over DBus. No error checking or
handling of replies is performed. These methods
do not block the sending thread.
- SendWithReply Sends a message over DBus and runs a call-back
function for the reply. This should be the default
case for most scenarios. These methods do not
block the sending thread.
- SendWithError Sends a message over DBus and waits for the reply
or an error. This interface has only been added for
some existing code that can safely block the sending
thread. Don't use it in new code.
These 3 types of interfaces represent what is currently used of the
existing send functions in DBusUtils. When all users have been converted
to the new methods, the interfaces in DBusUtils can be removed.
We intent to run the DBus thread's EventLoop function as separate
nsRunnable, but the function also contains code for initializing
sockets that are used for internal communication.
With this patch the socket initialization has been moved to the
setup function. This reduces the EventLoop function to plain event
handling.
