[Bluez-devel] Using bluez-libs for non-blocking I/O

["P. Durante" <shackan@gmail.com>]

Hi,
I've been digging the bluez mailing lists and the source code of the
libraries for a while, but couldn't find a solution for my problem yet.
I'm writing a bluetooth library in C++, it wraps the whole bluez-libs
around C++ objects, I'll use it for my project of a GUI-based
bluetooth management tool.
Things have not been though until now, I've layed out the whole class
hierarchy and most class member functions don't do anything but calling
their bluez-counterpart.
Now I wanted to implement an event-driven interface, using libsigc++
to provide a basic callback mechanism (basically, the library gets a
event from the hci device and dispatches it to the originating object
trough the appropriate callback functor) but this is giving me quite
some headaches, I'm going to have a single, separate, thread which
does all the poll()ing stuff, I want to reuse as most of the original
bluez library as possible, but I don't know how to make the existing
hci_send_req() return immediately without waiting for a reply (which,
in case of a asynchronous request, will be handled in the
event-dispatching-thread described above), I don't want to rewrite
hci_send_req() nor any of the many functions which rely on it, which
could be the best solution ?

Another question: the existing kernel modules and the library are able
to handle multiple pending requests at once or am I just wasting my
time trying to do something Bluez wasn't actually designed for ?

thanks in advance,
Paul


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