69a2031350
Replace half-assed DYNAMIC-WIND protection of input port by the one
...
Richard Kelsey suggested for Scheme 48.
2002-12-17 13:50:14 +00:00
4c90a345ec
In READ-FORMS, open/close input port in DYNAMIC-WIND before/after
...
thunks.
2002-12-16 11:00:11 +00:00
3a1439a16e
Remove warning message "Warning: dropping ignored channel i/o result"
...
because it can be legitimately triggered by WAIT-FOR-CHANNELS.
2002-12-11 12:40:29 +00:00
6fc80dfb4b
Fix typo: remove double application of MAKE-I/O-COMPLETION-HANDLER.
2002-11-12 13:13:02 +00:00
a1e9e54bbc
Add lookup-external from recent S48 (it's already described in the manual).
2002-11-07 09:43:29 +00:00
17b1a55c8b
+ Factor out pending interrupts into a separate package.
...
+ Let vm-channel-abort clear the pending-i/o interrupt if the queue became empty
2002-09-27 12:44:43 +00:00
5b47488938
Include half-assed implementation of ADD-PENDING-CHANNEL.
2002-09-19 07:08:16 +00:00
d14e638e10
Replace hacked-up VM-CHANNEL-ABORT by a version that's simpler and
...
closer to the original.
2002-09-19 07:07:40 +00:00
9950aa7205
Wrap an additional (lambda a ...) around the application of (terminate-current-thread) in terminate-thread! as the continuation may provide any number of values
2002-09-18 19:16:23 +00:00
d21334de83
Keep separate queues for input and output channels, so the VM doesn't
...
get confused handling events/interrupts.
I despise myself.
2002-09-18 14:56:31 +00:00
5cb76fd27b
Replace call to channel-has-waiter? by channel-check-waiter.
2002-09-17 21:22:41 +00:00
3c07ebb50f
PROTECT-PORT-OP saves the return value of CLOSE so better return (if #f #f) than (values).
2002-09-11 14:38:56 +00:00
024d938e39
Added SRFI 25, 26, 27, 28, 30.
2002-09-11 14:34:58 +00:00
cd9907c68f
Fixed bug in the reference implementation reported by Vladimir Tsichevski on c.l.s..
2002-09-09 08:03:59 +00:00
e3d6f985fc
Put back an accidentally elided ELSE branch in PLACEHOLDER-SET!
2002-09-06 14:11:36 +00:00
854f9d18e1
Removed duplicate definition of S48_ENTER/EXTRACT_BOOLEAN.
2002-09-06 11:57:53 +00:00
1599136ffa
Added map, for-each, member, assoc to srfi-1-interface
2002-09-04 08:23:47 +00:00
33c14d7901
First stab at implementing SELECT/SELECT!:
...
- extend the VM interrupts to distinguish between read and write
events
- add new ADD-PENDING-CHANNEL instruction to the VM
- add WAIT-FOR-CHANNELS procedure to the run-time system
- implement SELECT and SELECT! on top of that in newports.scm
This runs some basic tests, but in general should be considered
largely untested.
Moreover, SELECT/SELECT! never detect any exceptional conditions---the
returned vectors are always empty. This is because the VM doesn't
really track those, and it's unclear whether it would be worth the
effort.
2002-08-20 14:03:01 +00:00
ac343ba970
Replace Martin's implementation of selective blocking by the one in
...
Scheme 48 1.0.1.
Namely, instead of associating a list of queues with every thread, we
associate a single cell, holding the thread. That cell is stored in
thread queues, and once a thread is made runnable again, the cell is
set to #f. The thread-queue accessors ignore cells containing #f.
Implement an experimental OBTAIN-LOCK-MULTIPLE to test the whole
thing.
2002-08-16 14:11:50 +00:00
8f1dfb6935
Ensure that newspace is the space in front when dumping an image the
...
prevent relocation on startup.
2002-08-15 16:35:26 +00:00
4e5b87209d
Added ignore-port-locks? flag to output-port-forcers and use it in
...
flush-all-ports-no-threads.
2002-06-26 11:25:33 +00:00
bbfd094bbd
Queue os-signal events.
2002-06-10 08:46:08 +00:00
aed248d24b
First version of libscsh.
2002-05-16 14:50:46 +00:00
1d35626709
Redo the forking-without-the-threads fix in a way not involving
...
command levels (as there *are* no command levels for things like scsh
-c):
There's now a new asynchronous event, similar to SPAWN, called NARROW.
It spawns off a new scheduler with just one thread (which runs the
thunk provided as an argument to NARROW) and blocks the current one
until the narrowed scheduler finishes.
For this to work, two schedulers need to be in place: the root
scheduler which performs the housekeeping, and another one inside that
which is the one the program uses---otherwise it's the root scheduler
that's blocked, and that means no housekeeping gets done. This is
trivially the case for interactive mode, as the command-levels all
have their own schedulers, but we also need to make sure scsh's entry
point fires up its own initial scheduler.
2002-05-03 13:42:36 +00:00
2a302178e6
Provide names for housekeeping threads for better debugging.
2002-05-03 13:36:15 +00:00
104ed36666
Export PRESERVE-THREAD-FLUIDS from THREAD-FLUIDS.
2002-04-12 14:29:25 +00:00
fe5c9a3783
Cells for thread-env's fluid-cell-{ref,set!}.
2002-04-04 08:45:28 +00:00
ea31d95dbc
All the SRFIs from S48 0.57.
2002-04-04 08:44:49 +00:00
66a5384a98
alt/ from S48 0.57.
2002-04-04 08:36:20 +00:00
ffa5461a39
Added fluid-cell-ref and fluid-cell-set!.
2002-04-04 08:22:20 +00:00
06b68b7c5e
Cells as stob (from S48 0.57).
2002-04-04 08:13:53 +00:00
6f083d7205
Small renamer for clarity.
2002-04-04 08:09:15 +00:00
5aee745efb
New module language from S48 0.57.
2002-04-03 12:17:19 +00:00
b4312d028c
Be even more thorough about releasing port locks after exceptions.
2002-02-28 08:29:04 +00:00
f5d853712b
Remove STEAL-CHANNEL-PORT! which has been unused for a while now and
...
uncomfortably shared code with STEAL-PORT!
2002-02-28 08:28:32 +00:00
12ced00589
Make sure port locks get released after I/O errors.
2002-02-26 14:40:21 +00:00
150031d918
Revive these wonderful debugging tools.
2002-02-12 07:54:22 +00:00
baf1dbbf76
Pass optional arguments from FORK-THREAD to SPAWN.
2002-02-04 11:34:17 +00:00
2b1d8a3d01
Let s48-do-gc return 0 so the PreScheme compiler will emit the correct
...
signature of the function.
2002-02-01 10:25:50 +00:00
7c026ff0b4
Fix external-call-from-callback problem leading to spurious
...
gc-protection-mismatch exceptions.
2002-01-27 20:20:53 +00:00
284d89fe12
Added hook to align cwd and umask for the S48 system.
2001-12-19 09:14:15 +00:00
8bba3a13e1
Adjust top of stack as well.
2001-12-04 13:06:12 +00:00
136e313af7
New implementation of (no-inheritance) thread-local cells and thread
...
fluids.
New implementation of syslog.
Both are to be compatible with what's actually probably going into
Scheme 48.
2001-12-03 15:21:46 +00:00
b5180b35af
Make naming consistent with current Scheme 48:
...
argtype -> argument_type
argnumber -> argument_number
2001-12-03 15:19:48 +00:00
1ed75d8531
Let thread-uid->thread invoke the GC if it encounters multiple threads with the same uid.
2001-11-08 10:24:41 +00:00
405512e0db
Expported the rest of the port-handler accessors.
2001-10-25 07:24:42 +00:00
fe6a9db1e5
Renamed scsh-events to sigevents.
2001-10-18 09:02:52 +00:00
59bd2ab6e4
Peek on char-source-input-ports does not work. Added error message to report this.
2001-10-05 16:25:41 +00:00
9552e7900a
A thread may life in multiple queues.
2001-10-04 11:16:15 +00:00
2e3dd4b65c
Fixed small typo.
2001-09-12 13:42:29 +00:00
sperber