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try to fix mangled new-style atomic timeout guard

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This commit is contained in:
Matthew Flatt 2010-08-14 13:51:50 -06:00
parent 9dda6f5d6b
commit f1ecab0848
1 changed files with 8 additions and 4 deletions
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12
src/racket/src/thread.c
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@ -4565,10 +4565,12 @@ void scheme_end_atomic_can_break(void)
static void wait_until_suspend_ok(int for_stack)
{
if (do_atomic > atomic_timeout_atomic_level) {
if (for_stack && atomic_timeout_auto_suspend) {
/* new-style atomic timeout, where a stack oveflow is ok */
} else {
if (scheme_on_atomic_timeout && atomic_timeout_auto_suspend) {
/* new-style atomic timeout */
if (for_stack) {
/* a stack overflow is ok for the new-style timeout */
return;
} else if (do_atomic > atomic_timeout_atomic_level) {
scheme_log_abort("attempted to wait for suspend in nested atomic mode");
abort();
}
@ -4588,6 +4590,8 @@ Scheme_On_Atomic_Timeout_Proc scheme_set_on_atomic_timeout(Scheme_On_Atomic_Time
if (p) {
atomic_timeout_auto_suspend = 1;
atomic_timeout_atomic_level = do_atomic;
} else {
atomic_timeout_auto_suspend = 0;
}
return old;