96edbd128f
[PXEXT] Avoid queueing zero-length buffers in posix_io.c
...
read_user() assumes that zero-length buffers don't exist, and optimises
around this.
2008-03-25 21:10:21 +00:00
ee5bdb0d75
[PXEXT] Avoid returning a false EOF when we have an empty buffer queued
2008-03-25 20:29:42 +00:00
f6a8158eed
Make seek information part of the xfer metadata, rather than an entirely
...
separate xfer method.
Add missing .alloc_iob entries to several xfer_interface_operations
structures.
2008-01-08 16:46:55 +00:00
698b5bc887
Fix a minor logical error in posix_io.c
2007-12-07 00:52:48 +00:00
07f84566d5
Make read_user() non-blocking, and add select() call.
2007-08-04 01:22:52 +01:00
b34d4d0449
Separate the "is data ready" function of xfer_seek() into an
...
xfer_window() function, which can return a scalar rather than a
boolean.
2007-07-08 14:11:07 +01:00
ca4c6f9eee
Kill off unused request() method in data-xfer interface.
2007-07-08 02:10:54 +01:00
f77d9469a4
convert to zalloc
2007-07-06 20:19:55 +02:00
95adce0ce1
Add concept of transfer metadata, to be used by UDP in order to
...
implement sendto()/recvfrom() equivalents.
2007-06-11 15:04:39 +01:00
2c569fb240
Allow xfer_open() to take a struct uri as well as a URI string.
2007-06-09 18:20:08 +01:00
10d0a1f8c7
Modify data-xfer semantics: it is no longer necessary to call one of
...
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.
2007-05-26 15:04:36 +00:00
6006bed530
Free I/O buffers when we are finished with them!
2007-05-25 16:01:31 +00:00
54138f28f6
Use list_for_each_entry_safe() when flushing queue.
2007-05-19 22:05:16 +00:00
7d2535779c
Must request data before anything actually happens...
2007-05-18 15:36:11 +00:00
86a948ccbe
Added POSIX-style blocking I/O calls, for use by PXE TFTP API.
2007-05-18 14:19:22 +00:00
Michael Brown