koda@google.com
9fc1ca4536
R=iposva@google.com Review URL: https://codereview.chromium.org//648473002 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@41043 260f80e4-7a28-3924-810f-c04153c831b5
80 lines
2.6 KiB
C++
80 lines
2.6 KiB
C++
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
|
|
// for details. All rights reserved. Use of this source code is governed by a
|
|
// BSD-style license that can be found in the LICENSE file.
|
|
|
|
#include "platform/assert.h"
|
|
#include "vm/unit_test.h"
|
|
#include "vm/virtual_memory.h"
|
|
|
|
namespace dart {
|
|
|
|
UNIT_TEST_CASE(AllocateVirtualMemory) {
|
|
const intptr_t kVirtualMemoryBlockSize = 64 * KB;
|
|
VirtualMemory* vm = VirtualMemory::Reserve(kVirtualMemoryBlockSize);
|
|
EXPECT(vm != NULL);
|
|
EXPECT(vm->address() != NULL);
|
|
EXPECT_EQ(kVirtualMemoryBlockSize, vm->size());
|
|
EXPECT_EQ(vm->start(), reinterpret_cast<uword>(vm->address()));
|
|
EXPECT_EQ(vm->start() + kVirtualMemoryBlockSize, vm->end());
|
|
EXPECT(vm->Contains(vm->start()));
|
|
EXPECT(vm->Contains(vm->start() + 1));
|
|
EXPECT(vm->Contains(vm->start() + kVirtualMemoryBlockSize - 1));
|
|
EXPECT(vm->Contains(vm->start() + (kVirtualMemoryBlockSize / 2)));
|
|
EXPECT(!vm->Contains(vm->start() - 1));
|
|
EXPECT(!vm->Contains(vm->end()));
|
|
EXPECT(!vm->Contains(vm->end() + 1));
|
|
EXPECT(!vm->Contains(0));
|
|
EXPECT(!vm->Contains(static_cast<uword>(-1)));
|
|
|
|
vm->Commit(false);
|
|
char* buf = reinterpret_cast<char*>(vm->address());
|
|
buf[0] = 'a';
|
|
buf[1] = 'c';
|
|
buf[2] = '/';
|
|
buf[3] = 'd';
|
|
buf[4] = 'c';
|
|
buf[5] = 0;
|
|
EXPECT_STREQ("ac/dc", buf);
|
|
|
|
delete vm;
|
|
}
|
|
|
|
|
|
UNIT_TEST_CASE(FreeVirtualMemory) {
|
|
// Reservations should always be handed back to OS upon destruction.
|
|
const intptr_t kVirtualMemoryBlockSize = 10 * MB;
|
|
const intptr_t kIterations = 900; // Enough to exhaust 32-bit address space.
|
|
for (intptr_t i = 0; i < kIterations; ++i) {
|
|
VirtualMemory* vm = VirtualMemory::Reserve(kVirtualMemoryBlockSize);
|
|
vm->Commit(false);
|
|
delete vm;
|
|
}
|
|
// Check that truncation does not introduce leaks.
|
|
for (intptr_t i = 0; i < kIterations; ++i) {
|
|
VirtualMemory* vm = VirtualMemory::Reserve(kVirtualMemoryBlockSize);
|
|
vm->Commit(false);
|
|
vm->Truncate(kVirtualMemoryBlockSize / 2, true);
|
|
delete vm;
|
|
}
|
|
for (intptr_t i = 0; i < kIterations; ++i) {
|
|
VirtualMemory* vm = VirtualMemory::Reserve(kVirtualMemoryBlockSize);
|
|
vm->Commit(true);
|
|
vm->Truncate(kVirtualMemoryBlockSize / 2, false);
|
|
delete vm;
|
|
}
|
|
for (intptr_t i = 0; i < kIterations; ++i) {
|
|
VirtualMemory* vm = VirtualMemory::Reserve(kVirtualMemoryBlockSize);
|
|
vm->Commit(true);
|
|
vm->Truncate(0, true);
|
|
delete vm;
|
|
}
|
|
for (intptr_t i = 0; i < kIterations; ++i) {
|
|
VirtualMemory* vm = VirtualMemory::Reserve(kVirtualMemoryBlockSize);
|
|
vm->Commit(false);
|
|
vm->Truncate(0, false);
|
|
delete vm;
|
|
}
|
|
}
|
|
|
|
} // namespace dart
|