Matt Birkholz [Sat, 16 Jan 2016 21:13:08 +0000 (14:13 -0700)]
src/planetarium/geometry.scm (3d-~=): Misplaced paren.
Matt Birkholz [Sun, 17 Jan 2016 19:18:05 +0000 (12:18 -0700)]
Merge branch 'master' into Gtk.
Matt Birkholz [Sat, 16 Jan 2016 20:56:18 +0000 (13:56 -0700)]
Add open-unix-server-socket and unix-server-connection-accept...
...and close-unix-server-socket.
Matt Birkholz [Sun, 17 Jan 2016 00:47:51 +0000 (17:47 -0700)]
Add MONITOR-WORLD Edwin command displaying an animated world-report.
Matt Birkholz [Sat, 16 Jan 2016 19:45:15 +0000 (12:45 -0700)]
Add a WORLD-REPORT procedure to write a state-of-the-world report...
...showing the current time, heap free, recent GC statistics, and the
known threads.
Matt Birkholz [Sat, 16 Jan 2016 21:56:39 +0000 (14:56 -0700)]
Add crude thread time accounting.
Matt Birkholz [Fri, 15 Jan 2016 00:55:40 +0000 (17:55 -0700)]
src/runtime/savres.scm (disk-save): Save time world was restored.
Matt Birkholz [Fri, 15 Jan 2016 00:53:59 +0000 (17:53 -0700)]
src/runtime/output.scm (write-strings-in-paragraph): Add.
Matt Birkholz [Sun, 17 Jan 2016 18:49:04 +0000 (11:49 -0700)]
src/runtime/gcnote.scm (gc-statistic->string): Abbreviate...
...to keep each line under 80 columns (at least at first).
Joe Marshall [Sun, 17 Jan 2016 01:20:27 +0000 (17:20 -0800)]
Typos.
Joe Marshall [Sat, 16 Jan 2016 23:53:58 +0000 (15:53 -0800)]
Don't blow out the stack in STREAM->LIST.
Joe Marshall [Sat, 16 Jan 2016 23:51:23 +0000 (15:51 -0800)]
Don't add table to rehash population until an entry is created.
jmarshall [Sat, 16 Jan 2016 04:50:27 +0000 (20:50 -0800)]
Add STREAM-LAST and STREAM-TRUNCATE. Fixed a typo.
Matt Birkholz [Fri, 8 Jan 2016 19:51:58 +0000 (12:51 -0700)]
terrain: Fix glx-viewport-draw method.
Remove redundant (now incorrect) call to with-glx-widget (i.e.
glXMakeCurrent). GL no longer allows recursive locking.
Fix %trace to use outf-error instead of generic IO. The latter may
suspend-current-thread during a callback.
Punt glColorMaterial and much frobbage (e.g. setting params to their
defaults) copied from examples. Minimize differences between
draw-colored and draw-shaded.
Matt Birkholz [Fri, 8 Jan 2016 18:59:31 +0000 (11:59 -0700)]
gl: glx:swap-buffers already does a gl:flush.
Matt Birkholz [Tue, 5 Jan 2016 23:40:12 +0000 (16:40 -0700)]
Merge branch 'master' into Gtk.
Matt Birkholz [Tue, 5 Jan 2016 23:15:11 +0000 (16:15 -0700)]
Return 0 from OS_test_select_* ONLY if there are no pending...
...interrupts or subprocess status changes.
Matt Birkholz [Tue, 5 Jan 2016 23:11:41 +0000 (16:11 -0700)]
Add foreach_async_signal and an ASYNC flag for signal descriptors.
glibio.c uses this to set up its signal forwarder.
Matt Birkholz [Tue, 5 Jan 2016 23:09:04 +0000 (16:09 -0700)]
Do not randomize the FPU control word in x87_read_environment.
Looks like a typo: eax not replaced by rdi.
Matt Birkholz [Tue, 5 Jan 2016 23:07:22 +0000 (16:07 -0700)]
Do not initialize the floating-point environment in x86-64 assembly.
The floating-point environment is managed (and needs to be
initialized) by libc.
Matt Birkholz [Tue, 5 Jan 2016 22:55:59 +0000 (15:55 -0700)]
Do not initialize the floating-point environment in i386 assembly.
The floating-point environment is managed (and needs to be
initialized) by libc.
Matt Birkholz [Tue, 5 Jan 2016 22:46:24 +0000 (15:46 -0700)]
Add interrupts_p and OS_select_registry_entry for glib/glibio.c.
Matt Birkholz [Tue, 5 Jan 2016 22:40:55 +0000 (15:40 -0700)]
Add an ignore_status_change parameter to OS_pause for SMP-IDLE.
OS_pause previously returned immediately if there were pending
interrupts OR subprocess status changes, as required by a blocking
test-select-registry primitive. That made it useless to the SMP-IDLE
primitive, which spins in the idle loop until the io-waiter (or a
timer interrupt handler) gets around to syncing subprocess statuses.
It will spin too after getting a SIGCHLD until statuses are synced.
Matt Birkholz [Tue, 5 Jan 2016 22:05:05 +0000 (15:05 -0700)]
Remove last diff from master in runtime/.
The predicate sexpr in master works only because (fix:= 0 #f).
Replace the generic arithmetic (= (or #f 0) 0) only to remove the last
diff with master in runtime/.
Matt Birkholz [Tue, 5 Jan 2016 21:59:55 +0000 (14:59 -0700)]
Remove extra call to maybe-signal-io-thread-events in yield-current-
This must have snuck in with a large merge.
Matt Birkholz [Tue, 5 Jan 2016 21:55:08 +0000 (14:55 -0700)]
Remove unused load-option/suppress-loading-message?.
Reduce runtime/ diffs between this branch and master.
Matt Birkholz [Tue, 5 Jan 2016 21:43:33 +0000 (14:43 -0700)]
Remove obsolete nonblocking/subprocess-wait.
Reduce runtime/ diffs between this branch and master.
Matt Birkholz [Tue, 5 Jan 2016 21:21:34 +0000 (14:21 -0700)]
Remove (stash) debugging %traces in runtime/.
Reduce runtime/ diffs between this branch and master.
Matt Birkholz [Tue, 5 Jan 2016 18:45:39 +0000 (11:45 -0700)]
Punt without-preemption; use without-interrupts during callouts.
Using without-preemption in (runtime ffi) causes timer interrupts to
be ignored -- COMPLETELY ignored in the glxgears demo's animation
loop. It is probably no more helpful in with-obarray-lock(?).
Matt Birkholz [Tue, 5 Jan 2016 09:46:36 +0000 (02:46 -0700)]
Punt without-preemption; use without-interrupts during callouts.
Its use in (runtime ffi) causes timer interrupts to be ignored --
completely ignored in the glxgears demo's animation loop. It is
probably no more helpful in with-obarray-lock(?).
Matt Birkholz [Mon, 4 Jan 2016 08:40:08 +0000 (01:40 -0700)]
gtk: Get with Gtk+ v3.16; punt widget colors; use GtkCssProviders.
Eliminate or replace calls to deprecated Gtk+ functions. Punt gtk-
widget-parse-color, gtk-widget-bg-color, etc. Add gtk-widget-set-
name, gtk-widget-get-style-context, gtk-style-context-add-provider,
<gtk-css-provider>, etc.
Matt Birkholz [Tue, 15 Dec 2015 20:12:06 +0000 (13:12 -0700)]
gtk: Port GtkScrolledView and GtkPanedView to Gtk+ 3.10.8.
Matt Birkholz [Tue, 15 Dec 2015 19:58:57 +0000 (12:58 -0700)]
gtk: Port GtkScrolledView and GtkPanedView to Gtk+ 3.14.13.
Matt Birkholz [Fri, 11 Dec 2015 18:49:48 +0000 (11:49 -0700)]
gtk: No need to frob subprocess-wait anymore.
Hook/subprocess-wait is gone. The default subprocess-wait is now
nonblocking/subprocess-wait.
Matt Birkholz [Mon, 7 Dec 2015 19:31:08 +0000 (12:31 -0700)]
glib: Use g_free to free a *GError allocated with g_try_malloc0.
Matt Birkholz [Tue, 15 Dec 2015 01:02:07 +0000 (18:02 -0700)]
gtk: Port GtkScrolledView and GtkPanedView to Gtk+ 3.16.7.
Attempt to pick from multiple implementations per the Gtk+ version.
Matt Birkholz [Thu, 3 Dec 2015 22:45:28 +0000 (15:45 -0700)]
gtk: Remove deprecated enums.
Matt Birkholz [Mon, 4 Jan 2016 02:21:56 +0000 (19:21 -0700)]
Merge branch 'master' into Gtk.
Matt Birkholz [Sun, 3 Jan 2016 21:41:54 +0000 (14:41 -0700)]
Update copyright years.
Matt Birkholz [Sun, 3 Jan 2016 21:29:09 +0000 (14:29 -0700)]
dist/update-copyright.scm: Translate last-copyright-year.
Matt Birkholz [Sun, 3 Jan 2016 21:27:57 +0000 (14:27 -0700)]
dist/update-copyright.scm: Update files in place.
Start with a clean working tree and you can `git reset --hard HEAD'
when the translation goes badly.
Matt Birkholz [Fri, 11 Dec 2015 17:28:50 +0000 (10:28 -0700)]
Note last-statistic early in signal-gc-events.
The signaled thread events may run whenever, perhaps after
last-statistic is changed. Ensure all the thread events get the same
statistic -- the last-statistic when the events were sent.
Matt Birkholz [Fri, 11 Dec 2015 17:25:06 +0000 (10:25 -0700)]
edwin: Eliminate redundant thread event when setting run-light.
Using inferior-thread-output! in wait-for-input's thread event signals
another thread event unnecessarily. The new inferior-thread-run-
light! just sets the flags.
Matt Birkholz [Fri, 11 Dec 2015 17:16:50 +0000 (10:16 -0700)]
Eliminate multiple trigger-gc-deamons!.
The GC notification in GC events reveals that the after-gc interrupt
handler can run multiple times after one GC. This seems to happen
when a timer interrupt occurs during trigger-gc-daemons!. Thread
switching leads to re-signaling. (Was it assumed interrupt handlers
would not allow thread switching?)
This new interrupt handler is applied with interrupt-mask NOT
/timer-ok and allows timer interrupts only after clearing the after-gc
bit. A substitute mechanism prevents "us from getting into a loop
just running the daemons."
Matt Birkholz [Wed, 9 Dec 2015 22:53:45 +0000 (15:53 -0700)]
Add clock time (HH:MM) to GC notifications.
This makes it easier to see if a long running program is GCing more than
infrequently.
Matt Birkholz [Tue, 15 Dec 2015 04:49:47 +0000 (21:49 -0700)]
edwin: Add a timeout parameter to the peek-no-hang input operations.
Factor the busy loop out and name it keyboard-peek-busy-no-hang. Use
it in the peek-no-hang input operations to implement the timeout.
Matt Birkholz [Tue, 18 Aug 2015 00:19:15 +0000 (17:19 -0700)]
Add register-gc-event, deregister-gc-event, registered-gc-event.
Punt the hook/record-statistic! fluid. With-gc-notification now uses
dynamic-wind to register and deregister a GC thread event for the
current thread.
Do not use ANY fluid state (e.g. nearest-cmdl/port) during a GC. Use
the console-i/o-port in hook/gc-start and hook/gc-finish. GCs can
happen in the thread system when there is no current thread.
The fluid state IS defined during the GC thread events. At the start
of such events, signal a REPL abort if the heap is low.
Matt Birkholz [Tue, 21 Jul 2015 01:11:42 +0000 (18:11 -0700)]
Replace subprocess status ticks with thread events.
Without without-interrupts, ticks do not work. It is possible to
block even though a subprocess has changed state between the last
observation of the global status tick and the suspend. Passing the
observed tick to suspend-current-thread would allow it to check for
new ticks in the atomic section wherein it decides if the thread
should suspend, but replacing without-interrupts with with-thread-
events-blocked suggests a cleaner solution: subprocess thread events.
The new procedures register-subprocess-event and deregister-
subprocess-event are now used by Edwin. ANY main loop managing
subprocesses AND IO should be using register-subprocess-event along
with with-thread-events-blocked and suspend-current-thread to reliably
block for either in an SMPing world.
Block-on-io-descriptor now uses with-thread-events-blocked instead of
without-interrupts but it does NOT use register-subprocess-event AND
WILL NOT UNBLOCK WHEN A SUBPROCESS CHANGES STATUS.
Unfortunately this breaks Edwin on OS2 and Win32 where it is now
possible for Edwin to block for keyboard input without noticing that a
subprocess has exited. Edwin's main loop in these worlds needs to be
updated to use a "suspend loop" and register-subprocess-event even
though they do not actually multi-process.
Subprocess-wait now uses a suspend loop like the one in block-on-io-
descriptor rather than blocking for the rest of the thread's timeslice
in the process-wait primitive. Synchronous subprocess management now
uses this procedure instead of the curious subprocess-wait*, the only
remaining procedure using ticks.
Thus SUBPROCESS-GLOBAL-STATUS-TICK and SUBPROCESS-STATUS-TICK are
eliminated.
Matt Birkholz [Sat, 27 Jun 2015 22:24:45 +0000 (15:24 -0700)]
Reimplement permanently-register-io-thread-event for SMPability.
Remove permanent tentries (waiting thread entries) from
io-registrations. Replace them with an event wrapper that loops,
re-registering after the wrapped event finishes. The loop assumes IO
is being consumed during the event. If not, it may spin forever.
Remove the notion of registering for the "front" of the queue too.
The X graphics device must take care to de-register its IO event
before closing the display, else the thread system may apply test-
select-registry to a closed descriptor.
Matt Birkholz [Wed, 9 Dec 2015 21:27:57 +0000 (14:27 -0700)]
edwin: Fix inferior threads' wait-for-input.
Set the run-light BEFORE setting inferior-thread-changes?. Edwin may
accept-thread-output and clear the flag before it handles the thread
event (which will set the run-light, but not -changes?).
Matt Birkholz [Sun, 5 Jul 2015 16:21:17 +0000 (09:21 -0700)]
Do NOT use permanently-register-io-thread-event in Edwin.
Edwin does not consume the IO in the thread event. This worked in a
uni-processing world where another thread could consume the IO in
round-robin fashion, but in an SMPing world there is no way to know
when it is appropriate to signal another event. In a naive
implementation (without special handling of these events), an idle
processor would spin, queuing MANY "IO ready" events to one thread
until another thread consumed the IO.
Edwin's X11 and console display types now block for IO on multiple
descriptors, the X or tty descriptor PLUS the subprocess output
descriptors. They no longer use permanent IO thread events to handle
the latter.
Edwin's remaining uses of permanently-register-io-thread-event are in
single-threaded OS2 and Win32 worlds. The runtime's only uses are in
the OS2 and X11 graphics devices where the IO *is* consumed during the
event.
Matt Birkholz [Thu, 26 Nov 2015 05:38:20 +0000 (22:38 -0700)]
doc/user-manual: Unix Installation: minor edits.
Fix gdbm plugin instructions; there is no configure script in src/gdbm/.
Matt Birkholz [Thu, 26 Nov 2015 05:37:00 +0000 (22:37 -0700)]
svm: finish-cross-compilation of everything using a large heap.
Matt Birkholz [Thu, 26 Nov 2015 05:33:35 +0000 (22:33 -0700)]
Update versions to 9.2.1.
Taylor R Campbell [Sun, 27 Dec 2015 00:01:53 +0000 (00:01 +0000)]
Don't let mime decoding errors crash imail.
Taylor R Campbell [Sun, 27 Dec 2015 00:00:29 +0000 (00:00 +0000)]
Automate the mime codec tests. Still need work.
Taylor R Campbell [Sat, 26 Dec 2015 23:57:51 +0000 (23:57 +0000)]
Make all mime decoders signal a common condition type.
Taylor R Campbell [Tue, 27 Oct 2015 13:51:59 +0000 (13:51 +0000)]
Document REFERENCE-BARRIER.
Matt Birkholz [Thu, 3 Sep 2015 20:17:46 +0000 (13:17 -0700)]
ffi: Fix callouts that return a struct or union.
I missed a hunk while porting Peter Feigl <craven@gmx.net>'s patch to
commit
cf1e855.
Matt Birkholz [Wed, 19 Aug 2015 01:00:50 +0000 (18:00 -0700)]
Use without-interruption and more locking(!) in gcfinal.scm.
Prepare the GC daemon to run concurrently with other threads; lock each
finalizer while it is cleaned in run-gc-finalizers.
Add without-interruption to add-to-, remove-from-, remove-all-from-,
with--lock, and make-gc-finalized-object, NOT to search- or -elements.
Reset-gc-finalizers also lost its without-interrupts, but it is an
after-restore event already executed without-interrupts.
Matt Birkholz [Tue, 23 Jun 2015 18:01:26 +0000 (11:01 -0700)]
Remove without-interrupts from runtime/process.scm.
Serial access to a subprocess is the responsibility of the user. Thus
subprocess-i/o-port and close-subprocess-i/o do not need without-
interrupts to implement it.
Closing a port twice should not signal an error, so subprocess-delete
and close-subprocess-i/o do not need even without-interruption.
However they should close the port before clearing the subprocess
slot, else an abort could drop the port and it's channels may not be
closed for an arbitrarily long time.
Status sync could miss changes and subprocess-i/o-port and
make-subprocess could drop a subprocess or port if aborted mid-stride.
They now use without-interruption.
Matt Birkholz [Fri, 10 Jul 2015 19:03:02 +0000 (12:03 -0700)]
Remove without-interrupts from runtime/os2graph.scm.
Matt Birkholz [Fri, 19 Jun 2015 20:22:48 +0000 (13:22 -0700)]
Remove without-interrupts from runtime/x11graph.scm.
Replaced it with without-interruption. Presumably the desire was to
keep the permanently registered IO thread event from interrupting
itself.
Matt Birkholz [Fri, 19 Jun 2015 17:51:15 +0000 (10:51 -0700)]
Remove without-interrupts from runtime/random.scm.
Use a mutex to serialize access to the default random state. Serial
access to other random states is still the responsibility of the user.
Matt Birkholz [Fri, 19 Jun 2015 20:04:04 +0000 (13:04 -0700)]
Remove without-interrupts from runtime/queue.scm.
Add make-serial-queue and use it in runtime globals: the event
distributors, GC daemons and REPLs. Note that the "safe" queue
operations, when applied to non-serializing queues in SMPing worlds,
are NOT thread-safe. This only happens in LIAR, SWAT, Edwin, X11
Graphics and OS2 Graphics -- single-threaded applications.
Matt Birkholz [Wed, 1 Jul 2015 14:34:59 +0000 (07:34 -0700)]
Serialize access to the population-of-1d-tables.
Allow create-thread to be run by multiple threads concurrently while
still accessing the population-of-1d-tables serially.
Matt Birkholz [Sun, 12 Jul 2015 23:47:14 +0000 (16:47 -0700)]
Remove without-interrupts from runtime/intrpt.scm.
It was only used in the internal install procedure where an "atomic"
updated was described. Punted that and assumed the procedure is not
run in multiple threads concurrently. It should be called only during
the single-threaded cold load or in a careful developer's REPL(?).
Matt Birkholz [Mon, 13 Jul 2015 22:57:03 +0000 (15:57 -0700)]
Remove without-interrupts from runtime/io.scm.
Channel-read and channel-write used without-interrupts for atomicity,
to avoid calling primitives with a channel another thread has closed.
The resulting errors may have been expensive to handle, but the cheap
technique of calling without-interrupts is ineffective in SMPing
worlds. Assuming most channels are used by one thread and will not
encounter these errors, just punt the calls to without-interrupts.
Serialize modifications to the channel table (esp. channel-close) via
the open-channels gc finalizer's atomic section and the new
with-gc-finalizer-lock procedure.
Remove tty-input-channel and tty-output-channel from general use.
They are only used in a cold load initialize-package! procedure and an
after-restore reset-console procedure. They are not fit for general
use, creating a new channel object each time they are called, only the
newest one of which is returned by descriptor->channel. Assume these
procedures are only used in single threaded fashion.
In open-pty-master, directory-channel-open and make-select-registry,
replace without-interrupts with without-interruption to avoid dropping
a channel or registry because of an inopportune abort. GC finalizers
like open-channels and open-directories (and select-registry-
finalizer) are already serializing.
Do NOT export channel-descriptor-for-select to the () package. Assume
select registries and their result vectors are used ONLY internally,
in single threaded fashion, by the thread system. Punt the
unnecessary and now useless calls to without-interrupts.
In dld-load-file and dld-unload-file, serialize access to the
dld-handles via dld-handles-mutex.
Matt Birkholz [Tue, 23 Jun 2015 23:01:51 +0000 (16:01 -0700)]
Remove without-interrupts from runtime/infutl.scm.
Without-interrupts was used to make atomic accesses to the
uncompressed-files cache and the wrappers-with-memoized-debugging-info
population. To replace it, a serial population is used and the
uncompressed-files cache is punted. The latter is hopefully
unnecessary on modern machinery.
Matt Birkholz [Thu, 18 Jun 2015 19:23:48 +0000 (12:23 -0700)]
Remove without-interrupts from runtime/hashtb.scm.
Serial access to particular hash tables is (now?) the responsibility
of the user -- all access, not just modifications (because of lazy
rehashing). Serial access to the list of all address hash tables is
now the responsiblity of a serial population.
Most calls to with-table-locked! (aka without-interrupts) are now
calls to without-interruption (to postpone inopportune aborts).
Matt Birkholz [Thu, 18 Jun 2015 19:56:42 +0000 (12:56 -0700)]
Remove with-absolutely-no-interrupts from runtime/hash.scm.
Use a thread mutex to serialize access. Simplify an ancient
implementation by using the new datum weak and key weak hash table
types. Initialize the package AFTER (runtime hash-table).
Matt Birkholz [Mon, 13 Jul 2015 00:23:52 +0000 (17:23 -0700)]
Remove without-interrupts from runtime/global.scm.
Clean-obarray runs as a secondary-gc-deamon and thus, in SMPing
worlds, it may run in parallel with other threads on other processors.
A number of primitives and compiler utilities modify the obarray so an
SMPing microcode will use a pthread mutex to serialize access to it.
Clean-obarray now uses a new procedure, with-obarray-lock, that uses
new primitives to participate in the serialization.
Matt Birkholz [Fri, 19 Jun 2015 17:31:37 +0000 (10:31 -0700)]
Remove without-interrupts from runtime/generic.scm.
Serial access to particular generic functions is still the
responsibility of the user. Serial access to the
generic-procedure-records table is now ensured by a thread mutex.
Matt Birkholz [Thu, 18 Jun 2015 18:24:43 +0000 (11:24 -0700)]
Remove without-interrupts from runtime/geneqht.scm.
Serial access to a particular table is still the responsibility of the
user (e.g. SOS procedures?), but the list of all address hash tables
is now a serial population.
Matt Birkholz [Thu, 18 Jun 2015 18:22:42 +0000 (11:22 -0700)]
Add make-serial-population.
Also add empty-population! and for-each-inhabitant.
Do not export the /unsafe procedures even to (runtime); require that
they be explicitly imported (specifically exported?). Use the /unsafe
procedures in (runtime 1d-property) and (runtime thread) package
initializations to avoid trying to lock the population-of-populations
too early in the cold load.
Matt Birkholz [Mon, 13 Jul 2015 22:54:49 +0000 (15:54 -0700)]
Remove without-interrupts from runtime/gcfinal.scm.
Serialize access to the list of gc finalizers and to each finalizer.
Matt Birkholz [Mon, 6 Jul 2015 00:58:03 +0000 (17:58 -0700)]
Initialize the thread system early in the cold load.
Thus with-thread-mutex-lock can be used during initialization of most
packages. Avoid using the global set-interrupt-enables! binding in
dynamic-wind because it is now called so early.
This anticipates removing without-interrupts from gcfinal.scm and thus
calling with-thread-mutex-lock during make-gc-finalizer, e.g. during
the initialization of the (runtime string) package.
Matt Birkholz [Tue, 23 Jun 2015 18:42:13 +0000 (11:42 -0700)]
Remove with-absolutely-no-interrupts from runtime/gc.scm.
Default/purify and default/gc-flip modified the constant-space-queue
under the cover of with-absolutely-no-interrupts, which is no longer
atomic. Serializing these procedures is a trick because the latter is
invoked by the GC interrupt. (Thus ABSOLUTELY no interrupts were
allowed?)
But there is no need for default/gc-flip to remove items from the
queue. Flush-purification-queue! will know that its queue is "empty"
when its head is in constant space. Thus the interrupt no longer
modifies the queue, and the queuing process is serialized in the usual
way.
Since primitive-purify cannot fail for lack of space, ancient error
signals and retry loops are also eliminated.
Matt Birkholz [Wed, 17 Jun 2015 03:03:56 +0000 (20:03 -0700)]
Define make-thread-mutex early.
Global data structures like event-distributors and gc-daemon queues
need to serialize operations and could use thread mutexes except that
they are naturally created early in the cold load, before the thread
system is loaded. So the mutex data structure is defined (withOUT
define-structure syntax) in a new file: runtime/thread-low.scm. The
rest of thread.scm must be loaded after record.scm.
This breaks the circularity where thread system initialization
requires population and 1d-table operations which are serialized by
the thread system.
Matt Birkholz [Wed, 17 Jun 2015 02:35:31 +0000 (19:35 -0700)]
Remove without-interrupts from runtime/sfile.scm.
Serialize access to the files-to-delete element of the fixed-objects
vector.
Matt Birkholz [Wed, 17 Jun 2015 02:34:03 +0000 (19:34 -0700)]
Remove without-interrupts from runtime/rgxcmp.scm.
Add a mutex to each of the memoization caches.
Matt Birkholz [Tue, 14 Jul 2015 01:35:18 +0000 (18:35 -0700)]
Remove without-interrupts from runtime/ffi.scm.
Modifications to the registered-callbacks vector and the malloced
aliens list are now serialized by mutexes. Call-alien now uses
without-preemption during a callout (and its callbacks).
Matt Birkholz [Fri, 10 Jul 2015 02:30:06 +0000 (19:30 -0700)]
Add without-preemption.
Matt Birkholz [Wed, 17 Jun 2015 02:21:46 +0000 (19:21 -0700)]
Remove without-interrupts from runtime/string.scm.
It was only used to postpone aborts that would drop an external string
descriptor. The interrupt mask manipulation in %string-head! only
postpones a GC flip while the local heap is edited.
Matt Birkholz [Wed, 17 Jun 2015 02:21:19 +0000 (19:21 -0700)]
Remove without-interrupts from runtime/rbtree.scm.
It was only used to postpone aborts that would leave data structures
inconsistent.
Matt Birkholz [Wed, 17 Jun 2015 02:20:31 +0000 (19:20 -0700)]
Unalias with-absolutely-no-interrupts in runtime/prgcop.scm.
It is not atomic in multiprocessing worlds. The alias "atomically" is
no longer appropriate.
Matt Birkholz [Wed, 17 Jun 2015 02:18:21 +0000 (19:18 -0700)]
Remove without-interrupts from runtime/parser-buffer.scm.
It was only used to postpone aborts that would leave data structures
inconsistent.
Matt Birkholz [Wed, 17 Jun 2015 02:16:21 +0000 (19:16 -0700)]
Remove without-interrupts from runtime/gencache.scm.
It was only used to postpone aborts that would leave data structures
inconsistent. Access to these caches needs to be serial.
Matt Birkholz [Wed, 17 Jun 2015 02:15:57 +0000 (19:15 -0700)]
Remove without-interrupts from runtime/gdbm.scm.
It was only used to postpone aborts that would leak gdbfs.
Matt Birkholz [Wed, 17 Jun 2015 02:15:05 +0000 (19:15 -0700)]
Remove without-interrupts from runtime/crypto.scm.
It was only used to postpone aborts that would leak mhash contexts.
Matt Birkholz [Wed, 17 Jun 2015 02:13:46 +0000 (19:13 -0700)]
Remove without-interrupts from runtime/condvar.scm.
Multi-threaded access to the chain of waiters is already adequately
serialized by the condition-variable.lock. Without-interrupts was
only intended to postpone aborts that would leave a doubly-linked
chain without a complete pair of links.
Matt Birkholz [Sun, 12 Jul 2015 22:18:25 +0000 (15:18 -0700)]
Add without-interruption, to replace without-interrupts.
Without-interruption will replace without-interrupts wherever
exclusivity is not thought to be needed -- just uninterruptibility.
Without-interrupts is deprecated because it is broken in multi-
processing worlds where it cannot provide exclusive access to the heap
as it does in uniprocessing worlds.
Matt Birkholz [Sun, 12 Jul 2015 22:10:53 +0000 (15:10 -0700)]
mhash: Prepare the GC daemon to run concurrently with other threads.
Matt Birkholz [Thu, 23 Jul 2015 16:21:01 +0000 (09:21 -0700)]
gdbm: Prepare the GC daemon to run concurrently with other threads.
Matt Birkholz [Sun, 12 Jul 2015 22:42:00 +0000 (15:42 -0700)]
Add with-thread-mutex-try-lock.
Matt Birkholz [Sat, 11 Jul 2015 00:26:23 +0000 (17:26 -0700)]
Look for IO in yield-current-thread.
Matt Birkholz [Sat, 11 Jul 2015 19:32:52 +0000 (12:32 -0700)]
Add type-checking to thread-dead?.
Matt Birkholz [Wed, 17 Jun 2015 01:56:30 +0000 (18:56 -0700)]
debug.c (print_string): Summarize long strings.
Matt Birkholz [Sat, 6 Jun 2015 00:51:33 +0000 (17:51 -0700)]
Mark with-thread-events-blocked stack frames with the symbol.
These frames can then be recognized in Debug_Stack_Trace output.
Matt Birkholz [Wed, 1 Jul 2015 15:03:48 +0000 (08:03 -0700)]
Punt unused variable slots and mention of dangerous bindings.