/*
* Copyright (C) 2009 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Test the indirect reference table implementation.
*/
#include "Dalvik.h"
#include <stdlib.h>
#ifndef NDEBUG
#define DBUG_MSG LOGI
/*
* Basic add/get/delete tests in an unsegmented table.
*/
static bool basicTest()
{
static const int kTableMax = 20;
IndirectRefTable irt;
IndirectRef iref0, iref1, iref2, iref3;
IndirectRef manyRefs[kTableMax];
ClassObject* clazz = dvmFindClass("Ljava/lang/Object;", NULL);
Object* obj0 = dvmAllocObject(clazz, ALLOC_DONT_TRACK);
Object* obj1 = dvmAllocObject(clazz, ALLOC_DONT_TRACK);
Object* obj2 = dvmAllocObject(clazz, ALLOC_DONT_TRACK);
Object* obj3 = dvmAllocObject(clazz, ALLOC_DONT_TRACK);
const u4 cookie = IRT_FIRST_SEGMENT;
bool result = false;
if (!irt.init(kTableMax/2, kTableMax, kIndirectKindGlobal)) {
return false;
}
iref0 = (IndirectRef) 0x11110;
if (irt.remove(cookie, iref0)) {
LOGE("unexpectedly successful removal");
goto bail;
}
/*
* Add three, check, remove in the order in which they were added.
*/
DBUG_MSG("+++ START fifo\n");
iref0 = irt.add(cookie, obj0);
iref1 = irt.add(cookie, obj1);
iref2 = irt.add(cookie, obj2);
if (iref0 == NULL || iref1 == NULL || iref2 == NULL) {
LOGE("trivial add1 failed");
goto bail;
}
if (irt.get(iref0) != obj0 ||
irt.get(iref1) != obj1 ||
irt.get(iref2) != obj2) {
LOGE("objects don't match expected values %p %p %p vs. %p %p %p",
irt.get(iref0), irt.get(iref1), irt.get(iref2),
obj0, obj1, obj2);
goto bail;
} else {
DBUG_MSG("+++ obj1=%p --> iref1=%p\n", obj1, iref1);
}
if (!irt.remove(cookie, iref0) ||
!irt.remove(cookie, iref1) ||
!irt.remove(cookie, iref2))
{
LOGE("fifo deletion failed");
goto bail;
}
/* table should be empty now */
if (irt.capacity() != 0) {
LOGE("fifo del not empty");
goto bail;
}
/* get invalid entry (off the end of the list) */
if (irt.get(iref0) != kInvalidIndirectRefObject) {
LOGE("stale entry get succeeded unexpectedly");
goto bail;
}
/*
* Add three, remove in the opposite order.
*/
DBUG_MSG("+++ START lifo\n");
iref0 = irt.add(cookie, obj0);
iref1 = irt.add(cookie, obj1);
iref2 = irt.add(cookie, obj2);
if (iref0 == NULL || iref1 == NULL || iref2 == NULL) {
LOGE("trivial add2 failed");
goto bail;
}
if (!irt.remove(cookie, iref2) ||
!irt.remove(cookie, iref1) ||
!irt.remove(cookie, iref0))
{
LOGE("lifo deletion failed");
goto bail;
}
/* table should be empty now */
if (irt.capacity() != 0) {
LOGE("lifo del not empty");
goto bail;
}
/*
* Add three, remove middle / middle / bottom / top. (Second attempt
* to remove middle should fail.)
*/
DBUG_MSG("+++ START unorder\n");
iref0 = irt.add(cookie, obj0);
iref1 = irt.add(cookie, obj1);
iref2 = irt.add(cookie, obj2);
if (iref0 == NULL || iref1 == NULL || iref2 == NULL) {
LOGE("trivial add3 failed");
goto bail;
}
if (irt.capacity() != 3) {
LOGE("expected 3 entries, found %d", irt.capacity());
goto bail;
}
if (!irt.remove(cookie, iref1) || irt.remove(cookie, iref1)) {
LOGE("unorder deletion1 failed");
goto bail;
}
/* get invalid entry (from hole) */
if (irt.get(iref1) != kInvalidIndirectRefObject) {
LOGE("hole get succeeded unexpectedly");
goto bail;
}
if (!irt.remove(cookie, iref2) || !irt.remove(cookie, iref0)) {
LOGE("unorder deletion2 failed");
goto bail;
}
/* table should be empty now */
if (irt.capacity() != 0) {
LOGE("unorder del not empty");
goto bail;
}
/*
* Add four entries. Remove #1, add new entry, verify that table size
* is still 4 (i.e. holes are getting filled). Remove #1 and #3, verify
* that we delete one and don't hole-compact the other.
*/
DBUG_MSG("+++ START hole fill\n");
iref0 = irt.add(cookie, obj0);
iref1 = irt.add(cookie, obj1);
iref2 = irt.add(cookie, obj2);
iref3 = irt.add(cookie, obj3);
if (iref0 == NULL || iref1 == NULL || iref2 == NULL || iref3 == NULL) {
LOGE("trivial add4 failed");
goto bail;
}
if (!irt.remove(cookie, iref1)) {
LOGE("remove 1 of 4 failed");
goto bail;
}
iref1 = irt.add(cookie, obj1);
if (irt.capacity() != 4) {
LOGE("hole not filled");
goto bail;
}
if (!irt.remove(cookie, iref1) || !irt.remove(cookie, iref3)) {
LOGE("remove 1/3 failed");
goto bail;
}
if (irt.capacity() != 3) {
LOGE("should be 3 after two deletions");
goto bail;
}
if (!irt.remove(cookie, iref2) || !irt.remove(cookie, iref0)) {
LOGE("remove 2/0 failed");
goto bail;
}
if (irt.capacity() != 0) {
LOGE("not empty after split remove");
goto bail;
}
/*
* Add an entry, remove it, add a new entry, and try to use the original
* iref. They have the same slot number but are for different objects.
* With the extended checks in place, this should fail.
*/
DBUG_MSG("+++ START switched\n");
iref0 = irt.add(cookie, obj0);
irt.remove(cookie, iref0);
iref1 = irt.add(cookie, obj1);
if (irt.remove(cookie, iref0)) {
LOGE("mismatched del succeeded (%p vs %p)", iref0, iref1);
goto bail;
}
if (!irt.remove(cookie, iref1)) {
LOGE("switched del failed");
goto bail;
}
if (irt.capacity() != 0) {
LOGE("switching del not empty");
goto bail;
}
/*
* Same as above, but with the same object. A more rigorous checker
* (e.g. with slot serialization) will catch this.
*/
DBUG_MSG("+++ START switched same object\n");
iref0 = irt.add(cookie, obj0);
irt.remove(cookie, iref0);
iref1 = irt.add(cookie, obj0);
if (iref0 != iref1) {
/* try 0, should not work */
if (irt.remove(cookie, iref0)) {
LOGE("temporal del succeeded (%p vs %p)", iref0, iref1);
goto bail;
}
}
if (!irt.remove(cookie, iref1)) {
LOGE("temporal cleanup failed");
goto bail;
}
if (irt.capacity() != 0) {
LOGE("temporal del not empty");
goto bail;
}
DBUG_MSG("+++ START null lookup\n");
if (irt.get(NULL) != kInvalidIndirectRefObject) {
LOGE("null lookup succeeded");
goto bail;
}
DBUG_MSG("+++ START stale lookup\n");
iref0 = irt.add(cookie, obj0);
irt.remove(cookie, iref0);
if (irt.get(iref0) != kInvalidIndirectRefObject) {
LOGE("stale lookup succeeded");
goto bail;
}
/*
* Test table overflow.
*/
DBUG_MSG("+++ START overflow\n");
int i;
for (i = 0; i < kTableMax; i++) {
manyRefs[i] = irt.add(cookie, obj0);
if (manyRefs[i] == NULL) {
LOGE("Failed adding %d of %d", i, kTableMax);
goto bail;
}
}
if (irt.add(cookie, obj0) != NULL) {
LOGE("Table overflow succeeded");
goto bail;
}
if (irt.capacity() != (size_t)kTableMax) {
LOGE("Expected %d entries, found %d", kTableMax, irt.capacity());
goto bail;
}
irt.dump("table with 20 entries, all filled");
for (i = 0; i < kTableMax-1; i++) {
if (!irt.remove(cookie, manyRefs[i])) {
LOGE("multi-remove failed at %d", i);
goto bail;
}
}
irt.dump("table with 20 entries, 19 of them holes");
/* because of removal order, should have 20 entries, 19 of them holes */
if (irt.capacity() != (size_t)kTableMax) {
LOGE("Expected %d entries (with holes), found %d",
kTableMax, irt.capacity());
goto bail;
}
if (!irt.remove(cookie, manyRefs[kTableMax-1])) {
LOGE("multi-remove final failed");
goto bail;
}
if (irt.capacity() != 0) {
LOGE("multi-del not empty");
goto bail;
}
/* Done */
DBUG_MSG("+++ basic test complete\n");
result = true;
bail:
irt.destroy();
return result;
}
/*
* Some quick tests.
*/
bool dvmTestIndirectRefTable()
{
if (!basicTest()) {
LOGE("IRT basic test failed");
return false;
}
return true;
}
#endif /*NDEBUG*/