[gpsd-commit-watch] [SCM] GPSD branch, master, updated. release-3.11-330-g6ee9556

[Eric S. Raymond]

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- Log -----------------------------------------------------------------
commit 6ee9556f2fea231303a488f07a8b0e0a9f552dc4
Author: Eric S. Raymond <address@hidden>
Date:   Sat Jan 31 15:16:55 2015 -0500

    Back out the attempt to use VTIME.
    
    According to Matthias Drochner at
    http://lists.lysator.liu.se/pipermail/lsh-bugs/2003q4/000151.html:
    
       I thought I'd give lsh a try, just to see how it compares to openssh...
       The client didn't work well on NetBSD, got a message like "unexpected
       EWOULDBLOCK" on each keystroke.
       Looked a bit deeper and found that stdin is set to O_NONBLOCK and
       a raw tty mode with c_cc[VMIN] > 1 and c_cc[VTIME] > 0.
       I'll append a little test program which does the same. I've tried
       it on 3 operating systems (Linux, NetBSD, Digital UNIX), and it
       behaves differently on each:
    
       -on Linux, if a key is pressed, the read returns immediately with
        that one character
       -on NetBSD, the read returns with no data but EWOULDBLOCK
       -on D'UNIX, the poll() doesn't teturn before 4 keypresses are done;
        the read() returns these 4 characters
    
       Indeed, in SUSv2's termios page is a sentence which says that if
       both O_NONBLOCK and VTIME>0 are set, the behaviour is more or less
       undefined.
    
       I've solved my immediate problems by setting VMIN to 1 instead of 4
       in unix_interact.c:do_make_raw(), but VTIME is still pointless,
       so I wouldn't call this a clean solution.
    
    All regression tests pass.

-----------------------------------------------------------------------

Summary of changes:
 driver_evermore.c   |    1 -
 driver_garmin.c     |    3 --
 driver_geostar.c    |    1 -
 driver_italk.c      |    1 -
 driver_navcom.c     |    1 -
 driver_nmea2000.c   |    1 -
 driver_oncore.c     |    1 -
 driver_proto.c      |    2 -
 driver_sirf.c       |    1 -
 driver_superstar2.c |    1 -
 driver_tsip.c       |    1 -
 driver_ubx.c        |    1 -
 driver_zodiac.c     |    1 -
 drivers.c           |   19 --------------
 gpsd.h-tail         |    2 -
 gpsdecode.c         |    2 +-
 libgpsd_core.c      |    3 --
 serial.c            |   69 +++++++++-----------------------------------------
 18 files changed, 14 insertions(+), 97 deletions(-)


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