[SCM] Hurd branch, rbraun/select_timeout_pthread, created. hurd-release-0-2-3481-gbe6e5b8

[Richard Braun]

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The branch, rbraun/select_timeout_pthread has been created
        at  be6e5b86bdb9055b01ab929cb6b6eec49521ef93 (commit)

- Log -----------------------------------------------------------------
commit be6e5b86bdb9055b01ab929cb6b6eec49521ef93
Author: Richard Braun <address@hidden>
Date:   Sun Feb 10 21:11:46 2013 +0100

    Selectively compile io_select{,_timeout} as a routine
    
    Now that servers implement the select timeout, there is no need for a
    waittime MIG parameter. In order to make client calls asynchronous,
    io_select and io_select_timeout should be simple routines. But in order
    to minimize changes in the server code, it would be better to keep them
    as routines. A new build macro, _HURD_IO_SELECT_ROUTINE, allows choosing
    how these RPCs are compiled by MIG.
    
    * Makeconf (CPPFLAGS): Add -D_HURD_IO_SELECT_ROUTINE.
    * hurd/io.defs (io_select_timeout): Declare as a routine if
    _HURD_IO_SELECT_ROUTINE is defined, or a simpleroutine otherwise.
    (io_select): Likewise. In addition, remove the waittime timeout parameter.

commit 1d391c682b05a988b523a94e41e6d21a56d66fa8
Author: Richard Braun <address@hidden>
Date:   Sat Feb 9 15:06:43 2013 +0100

    Add io_select_timeout to the io interface
    
    This change fixes a problem that can occur with non-blocking (and also
    blocking for very short times) select/poll calls. The problem occurs
    because the timeout is implemented at the client side. For a
    non-blocking call, this means that (depending on the code path taken in
    the C library) the client could get a timeout without a full RPC
    round-trip to the server. Moving the implementation of the timeout to
    the servers guarantees a full round-trip, and correct results for
    non-blocking calls.
    
    A new type, time_data_t, is introduced as well. Except for the integer
    widths, its internal format matches the standard struct timespec.
    
    This change depends on the availability of the recently added
    pthread_hurd_cond_timedwait_np function in libpthread.
    
    * boot/boot.c (io_select_common): New static function.
    (S_io_select): Use io_select_common.
    (S_io_select_timeout): New function which makes use of io_select_common.
    * console-client/kbd-repeat.c (repeater_select): Add a timeout parameter.
    * console-client/pc-mouse.c (repeater_select): Likewise.
    * console-client/trans.c (io_select_common): New static function.
    (netfs_S_io_select): Use io_select_common.
    (netfs_S_io_select_timeout): New function which makes use of
    io_select_common.
    * console-client/trans.h (struct consnode): Add a timeout parameter.
    * hurd/hurd_types.defs (time_data_t): New type.
    * hurd/hurd_types.h (struct time_data) (time_data_t): Likewise.
    * hurd/io.defs (io_select_timeout): New MIG routine.
    * libdiskfs/io-select.c (diskfs_S_io_select_timeout): New function.
    * libnetfs/io-select.c (netfs_S_io_select_timeout): Likewise.
    * libpipe/pipe.c (pipe_pair_select): Add a timeout parameter.
    * libpipe/pipe.h (pipe_select_readable): Likewise.
    (pipe_select_writable): Likewise.
    (pipe_pair_select): Likewise.
    * libpipe/pq.h: Include <hurd/hurd_types.h>.
    * libtrivfs/io-select.c (trivfs_S_io_select_timeout): New function.
    * pfinet/glue-include/linux/sched.h: Include <errno.h>.
    (interruptible_sleep_on): Function removed, replaced with ...
    (interruptible_sleep_on_timeout): New function.
    (schedule): Update to use interruptible_sleep_on_timeout.
    (schedule_timeout): Likewise.
    * pfinet/io-ops.c (io_select_common): New static function.
    (S_io_select): Use io_select_common.
    (S_io_select_timeout): New function which makes use of io_select_common.
    * pfinet/tunnel.c (io_select_common): New static function.
    (trivfs_S_io_select): Use io_select_common.
    (trivfs_S_io_select_timeout): New function which makes use of
    io_select_common.
    * pflocal/connq.c (connq_listen): Replace noblock with a timeout
    parameter.
    * pflocal/connq.h: Include <hurd/hurd_types.h>.
    (connq_listen): Update declaration to replace noblock with a timeout
    parameter.
    * pflocal/io.c (io_select_common): New static function.
    (S_io_select): Use io_select_common.
    (S_io_select_timeout): New function which makes use of io_select_common.
    * pflocal/socket.c (S_socket_accept): Update call to connq_listen to
    match new declaration.
    * storeio/io.c (trivfs_S_io_select_timeout): New function.
    * term/ptyio.c (pty_io_select): Add a timeout parameter.
    * term/term.h (pty_io_select): Likewise.
    * term/users.c (io_select_common): New static function.
    (trivfs_S_io_select): Use io_select_common.
    (trivfs_S_io_select_timeout): New function which makes use of
    io_select_common.
    * trans/fifo.c (io_select_common): New static function.
    (trivfs_S_io_select): Use io_select_common.
    (trivfs_S_io_select_timeout): New function which makes use of
    io_select_common.
    * trans/firmlink.c (trivfs_S_io_select_timeout): New function.
    * trans/new-fifo.c (io_select_common): New static function.
    (trivfs_S_io_select): Use io_select_common.
    (trivfs_S_io_select_timeout): New function which makes use of
    io_select_common.
    * trans/null.c (trivfs_S_io_select_timeout): New function.
    * trans/streamio.c (io_select_common): New static function.
    (trivfs_S_io_select): Use io_select_common.
    (trivfs_S_io_select_timeout): New function which makes use of
    io_select_common.

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