support thread local IDB

git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@979 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
This commit is contained in:
vsc
2004-02-11 16:09:15 +00:00
parent eec29d7c27
commit e612cb2f84
4 changed files with 68 additions and 30 deletions

View File

@@ -4902,6 +4902,48 @@ Yap_ReleaseTermFromDB(DBTerm *ref)
ReleaseTermFromDB(ref);
}
static Int
p_install_thread_local(void)
{ /* '$is_dynamic'(+P) */
PredEntry *pe;
Term t = Deref(ARG1);
Term t2 = Deref(ARG2);
SMALLUNSGN mod = Yap_LookupModule(t2);
if (IsVarTerm(t)) {
return (FALSE);
}
if (mod == IDB_MODULE) {
pe = find_lu_entry(t);
if (!pe->cs.p_code.NOfClauses) {
if (IsIntegerTerm(t))
pe->PredFlags |= LogUpdatePredFlag|NumberDBPredFlag;
else if (IsAtomTerm(t))
pe->PredFlags |= LogUpdatePredFlag|AtomDBPredFlag;
else
pe->PredFlags |= LogUpdatePredFlag;
}
} else if (IsAtomTerm(t)) {
Atom at = AtomOfTerm(t);
pe = RepPredProp(PredPropByAtom(at, mod));
} else if (IsApplTerm(t)) {
Functor fun = FunctorOfTerm(t);
pe = RepPredProp(PredPropByFunc(fun, mod));
} else {
return FALSE;
}
WRITE_LOCK(pe->PRWLock);
if (pe->PredFlags & (UserCPredFlag|HiddenPredFlag|CArgsPredFlag|SyncPredFlag|TestPredFlag|AsmPredFlag|StandardPredFlag|CPredFlag|SafePredFlag|IndexedPredFlag|BinaryTestPredFlag) ||
pe->cs.p_code.NOfClauses) {
return FALSE;
}
pe->PredFlags |= ThreadLocalPredFlag;
pe->OpcodeOfPred = Yap_opcode(_thread_local);
pe->CodeOfPred = (yamop *)&pe->OpcodeOfPred;
WRITE_UNLOCK(pe->PRWLock);
return TRUE;
}
void
Yap_InitDBPreds(void)
{
@@ -4943,6 +4985,7 @@ Yap_InitDBPreds(void)
Yap_InitCPred("nth_instance", 3, p_nth_instance, SyncPredFlag);
Yap_InitCPred("$nth_instancep", 3, p_nth_instancep, SyncPredFlag);
Yap_InitCPred("$jump_to_next_dynamic_clause", 0, p_jump_to_next_dynamic_clause, SyncPredFlag);
Yap_InitCPred("$install_thread_local", 2, p_install_thread_local, SafePredFlag);
}
void