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fix scheduler bug

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where the particular combination of events seems not
 to have been possible until the extra delim-cont
 for try-atomic hook was added
This commit is contained in:
Matthew Flatt 2011-01-02 09:22:14 -07:00
parent 7eb3e8c28a
commit dbd8faee1b
1 changed files with 5 additions and 2 deletions
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7
src/racket/src/sema.c
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@ -644,8 +644,11 @@ int scheme_wait_semas_chs(int n, Scheme_Object **o, int just_try, Syncing *synci
if (semas[i]->value) {
if ((semas[i]->value > 0) && (!syncing || !syncing->reposts || !syncing->reposts[i]))
--semas[i]->value;
if (syncing && syncing->accepts && syncing->accepts[i])
scheme_accept_sync(syncing, i);
if (syncing) {
syncing->result = i + 1;
if (syncing->accepts && syncing->accepts[i])
scheme_accept_sync(syncing, i);
}
break;
}
} else if (semas[i]->so.type == scheme_never_evt_type) {