diogo/yap-6.3
Archived
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

some nice extra predicatesy

Browse Source 
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@2273 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
This commit is contained in:
vsc
2008-06-11 11:08:25 +00:00
parent c1f9fc9bcf
commit 02565ae625
2 changed files with 169 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

121
C/arrays.c
View File

@@ -692,6 +692,95 @@ ResizeStaticArray(StaticArrayEntry *pp, Int dim)
WRITE_UNLOCK(pp->ArRWLock);
}
static void
ClearStaticArray(StaticArrayEntry *pp)
{
statarray_elements old_v = pp->ValueOfVE;
static_array_types type = pp->ArrayType;
Int dim = - pp->ArrayEArity, i;
/* change official size */
if (pp->ArrayEArity >= 0){
return;
}
WRITE_LOCK(pp->ArRWLock);
switch(type) {
case array_of_ints:
memset((void *)pp->ValueOfVE.ints,0,sizeof(int)*dim);
break;
case array_of_chars:
memset((void *)pp->ValueOfVE.chars,0,sizeof(char)*dim);
break;
case array_of_uchars:
memset((void *)pp->ValueOfVE.uchars,0,sizeof(unsigned char)*dim);
break;
case array_of_doubles:
memset((void *)pp->ValueOfVE.floats,0,sizeof(double)*dim);
break;
case array_of_ptrs:
memset((void *)pp->ValueOfVE.ptrs,0,sizeof(void *)*dim);
break;
case array_of_atoms:
for (i = 0; i< dim; i++)
pp->ValueOfVE.atoms[i] = TermNil;
break;
case array_of_dbrefs:
for (i = 0; i < dim; i++) {
Term t0 = pp->ValueOfVE.dbrefs[i];
if (t0 != 0L) {
DBRef ptr = DBRefOfTerm(t0);
if (ptr->Flags & LogUpdMask) {
LogUpdClause *lup = (LogUpdClause *)ptr;
LOCK(lup->ClLock);
lup->ClRefCount--;
if (lup->ClRefCount == 0 &&
(lup->ClFlags & ErasedMask) &&
!(lup->ClFlags & InUseMask)) {
UNLOCK(lup->ClLock);
Yap_ErLogUpdCl(lup);
} else {
UNLOCK(lup->ClLock);
}
} else {
ptr->NOfRefsTo--;
if (ptr->NOfRefsTo == 0 &&
(ptr->Flags & ErasedMask) &&
!(ptr->Flags & InUseMask)) {
Yap_ErDBE(ptr);
}
}
}
pp->ValueOfVE.dbrefs[i] = 0L;
}
break;
case array_of_terms:
for (i = 0; i < dim; i++) {
DBTerm *ref = pp->ValueOfVE.terms[i];
if (ref != NULL) {
Yap_ReleaseTermFromDB(ref);
}
pp->ValueOfVE.terms[i] = NULL;
}
break;
case array_of_nb_terms:
for (i = 0; i < dim; i++) {
Term told = pp->ValueOfVE.lterms[i].tstore;
CELL *livep = &(pp->ValueOfVE.lterms[i].tlive);
RESET_VARIABLE(livep);
/* recover space */
if (IsApplTerm(told)) {
Yap_ReleaseTermFromDB((DBTerm *)RepAppl(told));
}
pp->ValueOfVE.lterms[i].tstore = old_v.lterms[i].tstore;
}
break;
}
WRITE_UNLOCK(pp->ArRWLock);
}
/* create an array (?Name, + Size) */
static Int
p_create_array(void)
@@ -1008,6 +1097,37 @@ p_resize_static_array(void)
}
}
/* resize a static array (+Name, + Size, +Props) */
/* does not work for mmap arrays yet */
static Int
p_clear_static_array(void)
{
Term t = Deref(ARG1);
if (IsVarTerm(t)) {
Yap_Error(INSTANTIATION_ERROR,t,"clear a static array");
return FALSE;
}
else if (IsAtomTerm(t)) {
/* resize a named array */
Atom a = AtomOfTerm(t);
StaticArrayEntry *pp = RepStaticArrayProp(RepAtom(a)->PropsOfAE);
while (!EndOfPAEntr(pp) && pp->KindOfPE != ArrayProperty)
pp = RepStaticArrayProp(pp->NextOfPE);
if (EndOfPAEntr(pp) || pp->ValueOfVE.ints == NULL) {
Yap_Error(PERMISSION_ERROR_RESIZE_ARRAY,t,"clear a static array");
return FALSE;
} else {
ClearStaticArray(pp);
return TRUE;
}
} else {
Yap_Error(TYPE_ERROR_ATOM,t,"clear a static array");
return FALSE;
}
}
/* Close a named array (+Name) */
static Int
p_close_static_array(void)
@@ -2368,6 +2488,7 @@ Yap_InitArrayPreds(void)
Yap_InitCPred("dynamic_update_array", 3, p_assign_dynamic, SafePredFlag);
Yap_InitCPred("add_to_array_element", 4, p_add_to_array_element, SafePredFlag);
Yap_InitCPred("array_element", 3, p_access_array, 0);
Yap_InitCPred("reset_static_array", 1, p_clear_static_array, SafePredFlag);
Yap_InitCPred("close_static_array", 1, p_close_static_array, SafePredFlag);
Yap_InitCPred("$sync_mmapped_arrays", 0, p_sync_mmapped_arrays, SafePredFlag|HiddenPredFlag);
Yap_InitCPred("$compile_array_refs", 0, p_compile_array_refs, SafePredFlag|HiddenPredFlag);