This removes SYSVSIGNALS as we're always and only using POSIX
signals now.
Some platform differences have been papered over. We used to
only ignore SIGPIPE when using BSD signals, but we now ignore
it all the time.
While the SIGFPE code will now compile, it hasn't been updated
to work on modern OSes fully yet as it will need to enable
the correct FP exceptions.
* Remove F_SETSIG call from Linux on X11 display.
Presumably, this was added to be like the `I_SETSIG` call on Solaris.
But it is the only `F_SETSIG` done on Linux and there isn't an
equivalent on the other platforms that we support as it is a GNU
extension.
Also, `F_SETSIG` with an argument of `0`, as here, means to send
the `SIGIO` signal, which is what is done by default.
From the man page:
F_SETSIG (int)
Set the signal sent when input or output becomes possible
to the value given in arg. A value of zero means to send
the default SIGIO signal. Any other value (including SIGIO)
is the signal to send instead, and in this case additional
info is available to the signal handler if installed with
SA_SIGINFO.
By using F_SETSIG with a nonzero value, and setting
SA_SIGINFO for the signal handler (see sigaction(2)),
extra information about I/O events is passed to the
handler in a siginfo_t structure. If the si_code field
indicates the source is SI_SIGIO, the si_fd field gives
the file descriptor associated with the event. Otherwise,
there is no indication which file descriptors are
pending, and you should use the usual mechanisms
(select(2), poll(2), read(2) with O_NONBLOCK set etc.)
to determine which file descriptors are available for I/O.
We aren't setting a non-zero value and we aren't establishing signal
handlers via `sigaction` with `SA_SIGINFO` set, so this shouldn't
be doing anything important for us.
* Stop setting _GNU_SOURCE for GNU libc extensions.
We were previously doing this to get access to the
`F_SETSIG` flag for `fcntl`, but this isn't being
used any longer.
This removes some usages of the SYSVONLY flag and lets us assume
the existence of `killpg`. It also updates a bit of code to accurately
populate the `pgrp` variable using `tcgetpgrp` rather than an ioctl.
This changes from `FASYNC` to `O_ASYNC`, `FNDELAY` to `O_NONBLOCK`,
and `O_NDELAY` to `O_NONBLOCK`. These are the modern names.
`O_NONBLOCK` is part of the POSIX standard. However, `O_ASYNC` is
specific to Linux and BSD. It is not available on Solaris, where
we still need to use `FASYNC`. Also, the behavior of having I/O
trigger a `SIGIO` signal is not in POSIX, since the `SIGIO` signal
is not in POSIX. Instead, it is only the behavior of having `SIGURG`
being signalled for out of band data that is specified.
We also takes this opportunity to collapse some multi-line calls
to get the flags, store it into a temp, and then set them, to
just doing it in one line, skipping the stored temporary value.
We also change one instance of `65535 - FNDELAY` to `~O_NONBLOCK`.
Closesinterlisp/medley#85.
In the past, we didn't use `gettimeofday()` on all non-DOS platforms
because it wasn't available, so we had to fall back to `time()`.
Those days are long gone and we have `gettimeofday()` on all non-DOS
platforms.
This also removes some code that used `times()` when it used `time()`.
This leaves us using `getrusage()` on all non-DOS platforms. This,
much like `gettimeofday()`, is now available everywhere. Not all of
the fields used here are guaranteed by POSIX, but the ones used
here shouldn't be an issue for now.
When `FLTINT` is defined (which is currently only on SunOS), if
`OS5` was not defined, then it tried to use `ieee_handler` which
doesn't exist on Linux and friends. If we were to enable `FLTINT`
on more platforms, then we'd want to always be using more modern
signal handling and not `ieee_handler`.
* Remove static char *id = from all source files.
The same information is included in a comment in each source file.
* Remove unused template file 'id'
* FD_ISSET requires that the fd being tested is >= 0, so unset fd -1 causes trouble.
* Remove code to enable X I/O signal generation from xinit.c
If the I/O signals are enabled before the signal handler has
been set up, the default action on receipt of a SIGPOLL or SIGIO
will be that the program exits. For now, turn the signals off,
as they aren't necessary and may not even be an improvement.
* Ensure fds are declared as signed and initialized (to -1)
The global fds may be accessed from the signal handler before any
particular device has been opened. Ensure that the fds are initialized
statically and that the value is distinguishable from all valid descriptors.
modified: initdsp.c
modified: initkbd.c
modified: keyevent.c
modified: osmsg.c
modified: rs232c.c
modified: timer.c
modified: tty.c
We don't want to modify emulation code yet as ISC support included
a number of other things, including some i386 code that isn't used
on other platforms, but is still useful as a reference.
This also removes support for the DEC3100 keyboard, but leaves a
constant behind for it as I'm not sure about re-numbering.
[NBriggs: keyboard type numbers are stored within all sysouts. Do not renumber supported keyboards, do not reuse previously used keyboard numbers]
This removes code related to HP9000, HPTIMERBUG, and HPUX defines.
It leaves KB_HP9000 for now as I'm not sure about renumbering
those constants.
This should not impact any of the core emulation code.
Use tzset() and the timezone variable to more robustly detect the timezone.
This will also allow a user to set the TZ environment variable to override system timezone settings.
modified: src/timer.c
* Docker compatibility: makefile and headers
- _GNU_SOURCE required for F_SETSIG
* Remove duplicate makeright.sh script
* Update some includes that don't exist on modern Linux (termio.h); Clang in Docker
has trouble resolving them automatically
This also involves removing unnecessary forward declarations, inserting
includes for all cross-file function references, making some definitions
static if they are not otherwise used, correcting errors that were exposed
by having correct prototypes.
new file: inc/allocmdsdefs.h
new file: inc/arith2defs.h
new file: inc/arith3defs.h
new file: inc/arith4defs.h
new file: inc/array2defs.h
new file: inc/array3defs.h
new file: inc/array4defs.h
new file: inc/array5defs.h
new file: inc/array6defs.h
new file: inc/arraydefs.h
new file: inc/bbtsubdefs.h
new file: inc/bindefs.h
new file: inc/bindsdefs.h
new file: inc/bitbltdefs.h
new file: inc/bltdefs.h
new file: inc/byteswapdefs.h
new file: inc/car-cdrdefs.h
new file: inc/chardevdefs.h
new file: inc/commondefs.h
new file: inc/conspagedefs.h
new file: inc/dbgtooldefs.h
new file: inc/dirdefs.h
new file: inc/drawdefs.h
new file: inc/dskdefs.h
new file: inc/dspifdefs.h
new file: inc/dspsubrsdefs.h
new file: inc/eqfdefs.h
new file: inc/etherdefs.h
new file: inc/findkeydefs.h
new file: inc/fpdefs.h
new file: inc/fvardefs.h
new file: inc/gc2defs.h
new file: inc/gcarraydefs.h
new file: inc/gccodedefs.h
new file: inc/gcdefs.h
new file: inc/gcfinaldefs.h
new file: inc/gchtfinddefs.h
new file: inc/gcmain3defs.h
new file: inc/gcoflowdefs.h
new file: inc/gcrcelldefs.h
new file: inc/gcrdefs.h
new file: inc/gcscandefs.h
new file: inc/gvar2defs.h
new file: inc/hacksdefs.h
new file: inc/hardrtndefs.h
new file: inc/inetdefs.h
new file: inc/initdspdefs.h
new file: inc/initkbddefs.h
new file: inc/initsoutdefs.h
modified: inc/inlineC.h
new file: inc/intcalldefs.h
new file: inc/kbdsubrsdefs.h
new file: inc/keyeventdefs.h
new file: inc/keylibdefs.h
new file: inc/kprintdefs.h
new file: inc/ldsoutdefs.h
new file: inc/lineblt8defs.h
new file: inc/lisp2cdefs.h
modified: inc/lispemul.h
new file: inc/llcolordefs.h
new file: inc/llstkdefs.h
modified: inc/lnk-inlineC.h
new file: inc/loopsopsdefs.h
new file: inc/lowlev1defs.h
new file: inc/lowlev2defs.h
new file: inc/lsthandldefs.h
new file: inc/maindefs.h
new file: inc/misc7defs.h
new file: inc/miscndefs.h
new file: inc/mkatomdefs.h
new file: inc/mkcelldefs.h
new file: inc/mvsdefs.h
new file: inc/osmsgdefs.h
new file: inc/perrnodefs.h
new file: inc/returndefs.h
new file: inc/rpcdefs.h
new file: inc/rplconsdefs.h
new file: inc/shiftdefs.h
new file: inc/storagedefs.h
new file: inc/subr0374defs.h
new file: inc/subrdefs.h
new file: inc/sxhashdefs.h
new file: inc/testtooldefs.h
new file: inc/timerdefs.h
new file: inc/typeofdefs.h
new file: inc/ubf1defs.h
new file: inc/ubf2defs.h
new file: inc/ubf3defs.h
new file: inc/ufsdefs.h
new file: inc/unixcommdefs.h
new file: inc/unwinddefs.h
new file: inc/uraiddefs.h
new file: inc/usrsubrdefs.h
new file: inc/uutilsdefs.h
new file: inc/vars3defs.h
new file: inc/vmemsavedefs.h
new file: inc/xbbtdefs.h
new file: inc/xcdefs.h
new file: inc/xcursordefs.h
new file: inc/xinitdefs.h
new file: inc/xlspwindefs.h
new file: inc/xmkicondefs.h
new file: inc/xrdoptdefs.h
new file: inc/xscrolldefs.h
new file: inc/xwinmandefs.h
new file: inc/z2defs.h
modified: src/allocmds.c
modified: src/arith2.c
modified: src/arith3.c
modified: src/arith4.c
modified: src/array.c
modified: src/array2.c
modified: src/array3.c
modified: src/array4.c
modified: src/array5.c
modified: src/array6.c
modified: src/bbtsub.c
modified: src/bin.c
modified: src/binds.c
modified: src/bitblt.c
modified: src/blt.c
modified: src/byteswap.c
modified: src/car-cdr.c
modified: src/chardev.c
modified: src/common.c
modified: src/conspage.c
modified: src/dbgtool.c
modified: src/dir.c
modified: src/draw.c
modified: src/dsk.c
modified: src/dspif.c
modified: src/dspsubrs.c
modified: src/eqf.c
modified: src/ether.c
modified: src/findkey.c
modified: src/foreign.c
modified: src/fp.c
modified: src/fvar.c
modified: src/gc.c
modified: src/gc2.c
modified: src/gcarray.c
modified: src/gccode.c
modified: src/gcfinal.c
modified: src/gchtfind.c
modified: src/gcmain3.c
modified: src/gcoflow.c
modified: src/gcr.c
modified: src/gcrcell.c
modified: src/gcscan.c
modified: src/gvar2.c
modified: src/hacks.c
modified: src/hardrtn.c
modified: src/inet.c
modified: src/initdsp.c
modified: src/initkbd.c
modified: src/initsout.c
modified: src/intcall.c
modified: src/kbdsubrs.c
modified: src/keyevent.c
modified: src/keylib.c
modified: src/kprint.c
modified: src/ldsout.c
modified: src/lineblt8.c
modified: src/lisp2c.c
modified: src/llcolor.c
modified: src/llstk.c
modified: src/loopsops.c
modified: src/lowlev1.c
modified: src/lowlev2.c
modified: src/lsthandl.c
modified: src/main.c
modified: src/misc7.c
modified: src/miscn.c
modified: src/mkatom.c
modified: src/mkcell.c
modified: src/mvs.c
modified: src/osmsg.c
modified: src/perrno.c
modified: src/return.c
modified: src/rpc.c
modified: src/rplcons.c
modified: src/setsout.c
modified: src/shift.c
modified: src/storage.c
modified: src/subr.c
modified: src/subr0374.c
modified: src/sxhash.c
modified: src/testtool.c
modified: src/timer.c
modified: src/truecolor.c
modified: src/tstsout.c
modified: src/typeof.c
modified: src/ubf1.c
modified: src/ubf2.c
modified: src/ubf3.c
modified: src/ufn.c
modified: src/ufs.c
modified: src/unixcomm.c
modified: src/unwind.c
modified: src/uraid.c
modified: src/usrsubr.c
modified: src/uutils.c
modified: src/vars3.c
modified: src/vmemsave.c
modified: src/xbbt.c
modified: src/xc.c
modified: src/xcursor.c
modified: src/xinit.c
modified: src/xlspwin.c
modified: src/xmkicon.c
modified: src/xrdopt.c
modified: src/xscroll.c
modified: src/xwinman.c
modified: src/z2.c
Add makefile for Linux on x86_64 platforms
Remove include <stropts.h> for Linux as modern systems have dropped this
Adjust code to account for fcntl() vs ioctl() for generating signals on X I/O
Adjust includes for time related include files for modern Linux systems
modified: bin/makefile-linux.386-x
new file: bin/makefile-linux.x86_64-x
modified: inc/version.h
modified: src/mkvdate.c
modified: src/timer.c
