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make SWI exec safer

This commit is contained in:
Vitor Santos Costa 2013-02-06 00:17:09 +00:00
parent b34be4360b
commit 9f49512497
1 changed files with 3 additions and 0 deletions
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3
library/dialect/swi/fli/swi.c
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@ -2314,6 +2314,7 @@ X_API int PL_next_solution(qid_t qi)
}
qi->state = 1;
if (result == 0) {
YAP_LeaveGoal(FALSE, &qi->h);
qi->open = 0;
}
return result;
@ -2343,9 +2344,11 @@ X_API void PL_close_query(qid_t qi)
X_API int PL_call_predicate(module_t ctx, int flags, predicate_t p, term_t t0)
{
fid_t f = PL_open_foreign_frame();
qid_t qi = PL_open_query(ctx, flags, p, t0);
int ret = PL_next_solution(qi);
PL_cut_query(qi);
PL_close_foreign_frame(f);
return ret;
}