| Commit message (Expand) | Author | Age | Files | Lines |
|---|
| * | Fix finalizer resuscitation causing excessive GC...* libguile/finalizers.c (async_gc_finalizer):
(scm_i_register_async_gc_callback): Replace "weak gc callback"
mechanism with "async gc callback" mechanism. Very similar but the
new API is designed to be called a bounded number of times, to avoid
running afoul of libgc heuristics.
* libguile/weak-list.h: New internal header.
* libguile/Makefile.am (noinst_HEADERS): Add weak-list.h.
* libguile/weak-set.c (vacuum_all_weak_sets):
(scm_c_make_weak_set, scm_init_weak_set):
* libguile/weak-table.c (vacuum_all_weak_tables):
(scm_c_make_weak_table, scm_init_weak_table): Arrange to vacuum all
weak sets from a single async GC callback, and likewise for weak
tables.
Thanks to Ludovic Courtès for tracking this bug down!
| Andy Wingo | 2017-03-13 | 1 | -4/+4 |
| * | Add interface to disable automatic finalization...* libguile/finalizers.h:
* libguile/finalizers.c (run_finalizers_async_thunk)
(finalization_thread_proc): Call the new scm_run_finalizers helper.
(scm_i_finalizer_pre_fork): Only spawn the thread if automatic
finalization is enabled.
(scm_set_automatic_finalization_enabled, scm_run_finalizers): New
functions.
(scm_init_finalizers, scm_init_finalizer_thread): Only set a finalizer
notifier if automatic finalization is enabled.
* doc/ref/libguile-smobs.texi (Garbage Collecting Smobs): Add discussion
of concurrency.
* doc/ref/api-smobs.texi (Smobs): Document new functions.
| Andy Wingo | 2014-04-17 | 1 | -1/+4 |
| * | consolidate scm_i_register_weak_gc_callback, update weak-set to fit...* libguile/finalizers.h:
* libguile/finalizers.c (scm_i_register_weak_gc_callback): New internal
helper, from weak-set.c.
Relative to the previous weak-set.c version, prefer the
finalizer-based implementation. Fix bug regarding confusion between
scm_before_gc_c_hook and scm_after_gc_hook. Fix bug regarding
referencing weak values outside of the alloc lock.
* libguile/weak-set.c (GC_move_disappearing_link): New stub.
GC_move_disappearing_link is only available in libgc 7.3.
(move_weak_entry): Use the new stub instead of ifdeffery.
(resize_set): Now that we run finalizers from a separate thread or
async, we can keep the lock while reallocating the set vector.
(do_vacuum_weak_set): For the same reason, always lock the set.
Remove implementation of scm_c_register_weak_gc_callback in preference
of the new copy in finalizers.c.
(scm_c_make_weak_set): Use the new scm_i_register_weak_gc_callback.
| Andy Wingo | 2013-01-20 | 1 | -1/+6 |
| * | run finalizers asynchronously (in asyncs and/or pthreads)...* libguile/finalizers.c: New excitement! We'll be running finalizers in
threads, if that's available. If it's not available, during early
boot, we can run finalizers in asyncs. This will make it safer to
allocate while holding a mutex.
* libguile/posix.c (scm_fork): Shut down the finalizer thread before
forking.
* libguile/init.c (scm_i_init_guile): Init the async finalizer mechanism
during boot and, if available, initialialize the finalizer thread at
the very end.
* libguile/gc.c (scm_storage_prehistory): Tell libgc we'll be finalizing
on demand.
(scm_gc): Explicitly run finalizers here. If you're calling this
function, you probably want synchronous GC.
| Andy Wingo | 2012-02-24 | 1 | -0/+3 |
| * | add scm_i_set_finalizer, scm_i_add_finalizer, scm_i_add_resuscitator...* libguile/finalizers.h:
* libguile/finalizers.c: New files.
* libguile.h:
* libguile/Makefile.am: Add to build.
| Andy Wingo | 2012-02-19 | 1 | -0/+39 |
