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/* Copyright (C) 1999-2008 Henry Cejtin, Matthew Fluet, Suresh
* Jagannathan, and Stephen Weeks.
* Copyright (C) 1997-2000 NEC Research Institute.
*
* MLton is released under a BSD-style license.
* See the file MLton-LICENSE for details.
*/
void GC_share (GC_state s, pointer object) {
size_t bytesExamined;
size_t bytesHashConsed;
enter (s); /* update stack in heap, in case it is reached */
if (DEBUG_SHARE)
fprintf (stderr, "GC_share "FMTPTR"\n", (uintptr_t)object);
if (DEBUG_SHARE or s->controls.messages)
s->lastMajorStatistics.bytesHashConsed = 0;
// Don't hash cons during the first round of marking.
bytesExamined = dfsMarkByMode (s, object, MARK_MODE, FALSE, FALSE);
s->objectHashTable = allocHashTable (s);
// Hash cons during the second round of (un)marking.
dfsMarkByMode (s, object, UNMARK_MODE, TRUE, FALSE);
freeHashTable (s->objectHashTable);
bytesHashConsed = s->lastMajorStatistics.bytesHashConsed;
s->cumulativeStatistics.bytesHashConsed += bytesHashConsed;
if (DEBUG_SHARE or s->controls.messages)
printBytesHashConsedMessage (bytesHashConsed, bytesExamined);
leave (s);
}
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