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with a threaded guile, lock weak sets and tables during a fork

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* libguile/weak-set.c (make_weak_set):
* libguile/weak-table.c (make_weak_table): If we have a threaded Guile,
* keep a weak set (table) of weak sets (tables).  Use this and the
  pthread_atfork mechanism to lock and unlock weak sets and weak tables
  during a fork().

* libguile/weak-set.h (scm_weak_set_prehistory): New internal API.
* libguile/init.c: Add call to scm_weak_set_prehistory().
This commit is contained in:
Andy Wingo 2012-02-17 11:47:52 +01:00
parent 58565208bd
commit f609480611
4 changed files with 194 additions and 28 deletions
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libguile/init.c
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@ -383,6 +383,7 @@ scm_i_init_guile (void *base)
scm_storage_prehistory ();
scm_threads_prehistory (base); /* requires storage_prehistory */
scm_weak_set_prehistory (); /* requires storage_prehistory */
scm_weak_table_prehistory (); /* requires storage_prehistory */
#ifdef GUILE_DEBUG_MALLOC
scm_debug_malloc_prehistory ();