skia2/tests/ArenaAllocTest.cpp
Herb Derby 593cb94d1c Fix reset and deleting behavior.
* Reset the Arena state.
* Call all the dtors before deleting the blocks.

Change-Id: I6d90463966ac7bf9f0a4fda229f67d508c86bebb
Reviewed-on: https://skia-review.googlesource.com/7308
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Herb Derby <herb@google.com>
2017-01-19 20:34:36 +00:00

163 lines
4.4 KiB
C++

/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Test.h"
#include "SkArenaAlloc.h"
namespace {
static int created, destroyed;
struct Foo {
Foo() : x(-2), y(-3.0f) { created++; }
Foo(int X, float Y) : x(X), y(Y) { created++; }
~Foo() { destroyed++; }
int x;
float y;
};
struct Big {
Big() {}
uint32_t array[128];
};
struct Node {
Node(Node* n) : next(n) { created++; }
~Node() {
destroyed++;
if (next) {
next->~Node();
}
}
Node *next;
};
struct Start {
~Start() {
if (start) {
start->~Node();
}
}
Node* start;
};
}
struct WithDtor {
~WithDtor() { }
};
DEF_TEST(ArenaAlloc, r) {
{
created = 0;
destroyed = 0;
SkArenaAlloc arena{nullptr, 0};
REPORTER_ASSERT(r, *arena.make<int>(3) == 3);
Foo* foo = arena.make<Foo>(3, 4.0f);
REPORTER_ASSERT(r, foo->x == 3);
REPORTER_ASSERT(r, foo->y == 4.0f);
REPORTER_ASSERT(r, created == 1);
REPORTER_ASSERT(r, destroyed == 0);
arena.makeArrayDefault<int>(10);
int* zeroed = arena.makeArray<int>(10);
for (int i = 0; i < 10; i++) {
REPORTER_ASSERT(r, zeroed[i] == 0);
}
Foo* fooArray = arena.makeArrayDefault<Foo>(10);
REPORTER_ASSERT(r, fooArray[3].x == -2);
REPORTER_ASSERT(r, fooArray[4].y == -3.0f);
REPORTER_ASSERT(r, created == 11);
REPORTER_ASSERT(r, destroyed == 0);
arena.make<typename std::aligned_storage<10,8>::type>();
}
REPORTER_ASSERT(r, created == 11);
REPORTER_ASSERT(r, destroyed == 11);
{
created = 0;
destroyed = 0;
char block[64];
SkArenaAlloc arena{block};
REPORTER_ASSERT(r, *arena.make<int>(3) == 3);
Foo* foo = arena.make<Foo>(3, 4.0f);
REPORTER_ASSERT(r, foo->x == 3);
REPORTER_ASSERT(r, foo->y == 4.0f);
REPORTER_ASSERT(r, created == 1);
REPORTER_ASSERT(r, destroyed == 0);
arena.makeArrayDefault<int>(10);
int* zeroed = arena.makeArray<int>(10);
for (int i = 0; i < 10; i++) {
REPORTER_ASSERT(r, zeroed[i] == 0);
}
Foo* fooArray = arena.makeArrayDefault<Foo>(10);
REPORTER_ASSERT(r, fooArray[3].x == -2);
REPORTER_ASSERT(r, fooArray[4].y == -3.0f);
REPORTER_ASSERT(r, created == 11);
REPORTER_ASSERT(r, destroyed == 0);
arena.make<typename std::aligned_storage<10,8>::type>();
}
REPORTER_ASSERT(r, created == 11);
REPORTER_ASSERT(r, destroyed == 11);
{
created = 0;
destroyed = 0;
std::unique_ptr<char[]> block{new char[1024]};
SkArenaAlloc arena{block.get(), 1024};
REPORTER_ASSERT(r, *arena.make<int>(3) == 3);
Foo* foo = arena.make<Foo>(3, 4.0f);
REPORTER_ASSERT(r, foo->x == 3);
REPORTER_ASSERT(r, foo->y == 4.0f);
REPORTER_ASSERT(r, created == 1);
REPORTER_ASSERT(r, destroyed == 0);
arena.makeArrayDefault<int>(10);
int* zeroed = arena.makeArray<int>(10);
for (int i = 0; i < 10; i++) {
REPORTER_ASSERT(r, zeroed[i] == 0);
}
Foo* fooArray = arena.makeArrayDefault<Foo>(10);
REPORTER_ASSERT(r, fooArray[3].x == -2);
REPORTER_ASSERT(r, fooArray[4].y == -3.0f);
REPORTER_ASSERT(r, created == 11);
REPORTER_ASSERT(r, destroyed == 0);
arena.make<typename std::aligned_storage<10,8>::type>();
}
REPORTER_ASSERT(r, created == 11);
REPORTER_ASSERT(r, destroyed == 11);
{
char storage[64];
SkArenaAlloc arena{storage};
arena.makeArrayDefault<char>(256);
arena.reset();
arena.reset();
}
{
created = 0;
destroyed = 0;
char storage[64];
SkArenaAlloc arena{storage};
Start start;
Node* current = nullptr;
for (int i = 0; i < 128; i++) {
uint64_t* temp = arena.makeArrayDefault<uint64_t>(sizeof(Node) / sizeof(Node*));
current = new (temp)Node(current);
}
start.start = current;
}
REPORTER_ASSERT(r, created == 128);
REPORTER_ASSERT(r, destroyed == 128);
}