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* Make seek information part of the xfer metadata, rather than an entirelyMichael Brown2008-01-081-1/+1
| | | | | | | separate xfer method. Add missing .alloc_iob entries to several xfer_interface_operations structures.
* Separate the "is data ready" function of xfer_seek() into anMichael Brown2007-07-081-1/+2
| | | | | xfer_window() function, which can return a scalar rather than a boolean.
* Kill off unused request() method in data-xfer interface.Michael Brown2007-07-081-1/+0Star
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* convert to zallocHolger Lubitz2007-07-061-2/+1Star
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* Modify data-xfer semantics: it is no longer necessary to call one ofMichael Brown2007-05-261-12/+15
| | | | | | | | | request(), seek() or deliver_xxx() in order to start the data flow. Autonomous generators must be genuinely autonomous (having their own process), or otherwise arrange to be called. TCP does this by starting the retry timer immediately. Add some debugging statements.
* Prefix all the open()-family routines with xfer_, to disambiguate themMichael Brown2007-05-181-3/+4
| | | | from the normal POSIX-style open()
* Do not hold self-references. This then avoids the problem of having toMichael Brown2007-05-151-6/+9
| | | | | | | | | ensure that we only drop our self-reference exactly once. To maintain the guarantee that an object won't go out of scope unexpectedly while one of its event handlers is being called, the event-calling functions now automatically obtain and drop extra references.
* Data-transfer interface should now be functionally complete.Michael Brown2007-05-151-0/+68