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* threads.c (scm_i_thread_invalidate_freelists): New

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function.

* gc.c (scm_igc): Call scm_i_thread_invalidate_freelists.
This commit is contained in:
Mikael Djurfeldt 2002-12-10 16:09:37 +00:00
parent 8c3300070b
commit b0dc3d710a
4 changed files with 25 additions and 8 deletions
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9
libguile/ChangeLog
View file

@ -1,3 +1,12 @@
2002-12-10 Mikael Djurfeldt <mdj@kvast.blakulla.net>
* threads.c (scm_i_thread_invalidate_freelists): New
function.
* gc.c (scm_igc): Call scm_i_thread_invalidate_freelists.
* modules.c (scm_export): Inserted a return statement.
2002-12-10 Han-Wen Nienhuys <hanwen@cs.uu.nl>
* modules.c (scm_export): new function

2
libguile/gc.c
View file

@ -570,6 +570,8 @@ scm_igc (const char *what)
++scm_gc_heap_lock;
scm_i_thread_invalidate_freelists ();
/*
Let's finish the sweep. The conservative GC might point into the
garbage, and marking that would create a mess.

21
libguile/threads.c
View file

@ -1158,7 +1158,6 @@ scm_c_thread_exited_p (SCM thread)
static scm_t_cond wake_up_cond;
int scm_i_thread_go_to_sleep;
static scm_thread *gc_thread;
static scm_t_mutex gc_section_mutex;
static scm_thread *gc_section_owner;
static int gc_section_count = 0;
@ -1177,21 +1176,30 @@ scm_i_thread_put_to_sleep ()
if (SCM_CAR (threads) != cur_thread)
{
scm_thread *t = SCM_THREAD_DATA (SCM_CAR (threads));
t->clear_freelists_p = 1;
scm_i_plugin_mutex_lock (&t->heap_mutex);
}
gc_thread = suspend ();
scm_i_thread_go_to_sleep = 0;
}
}
void
scm_i_thread_invalidate_freelists ()
{
SCM threads = all_threads;
for (; !SCM_NULLP (threads); threads = SCM_CDR (threads))
if (SCM_CAR (threads) != cur_thread)
{
scm_thread *t = SCM_THREAD_DATA (SCM_CAR (threads));
t->clear_freelists_p = 1;
}
}
void
scm_i_thread_wake_up ()
{
if (threads_initialized_p && gc_section_count == 1)
{
SCM threads = all_threads;
resume (gc_thread);
scm_i_plugin_cond_broadcast (&wake_up_cond);
for (; !SCM_NULLP (threads); threads = SCM_CDR (threads))
if (SCM_CAR (threads) != cur_thread)
@ -1208,11 +1216,8 @@ scm_i_thread_sleep_for_gc ()
{
scm_thread *t;
t = suspend ();
*SCM_FREELIST_LOC (scm_i_freelist) = SCM_EOL;
*SCM_FREELIST_LOC (scm_i_freelist2) = SCM_EOL;
scm_i_plugin_cond_wait (&wake_up_cond, &t->heap_mutex);
t->clear_freelists_p = 0;
t->top = NULL; /* resume (t); but don't clear freelists */
resume (t);
}
/* The mother of all recursive critical sections */

1
libguile/threads.h
View file

@ -182,6 +182,7 @@ extern int scm_i_thread_go_to_sleep;
void scm_i_thread_put_to_sleep (void);
void scm_i_thread_wake_up (void);
void scm_i_thread_invalidate_freelists (void);
void scm_i_thread_sleep_for_gc (void);
void scm_threads_prehistory (void);
void scm_threads_init_first_thread (void);