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58 lines
1.7 KiB
C++
58 lines
1.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "chrome/common/ipc_message.h"
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#include "chrome/common/ipc_message_utils.h"
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#include "gtest/gtest.h"
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#include "mozilla/RandomNum.h"
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#include "mozilla/ipc/RawShmem.h"
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namespace mozilla::ipc {
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static bool SerializeAndDeserialize(UnsafeSharedMemoryHandle&& aIn,
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UnsafeSharedMemoryHandle* aOut) {
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IPC::Message msg(MSG_ROUTING_NONE, 0);
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{
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IPC::MessageWriter writer(msg);
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IPC::WriteParam(&writer, std::move(aIn));
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}
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IPC::MessageReader reader(msg);
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return IPC::ReadParam(&reader, aOut);
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}
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void TestUnsafeSharedMemoryHandle(size_t aSize) {
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auto maybeHandle = UnsafeSharedMemoryHandle::CreateAndMap(aSize);
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ASSERT_TRUE(maybeHandle);
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auto [handle, mapping] = maybeHandle.extract();
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EXPECT_EQ(mapping.Size(), aSize);
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auto inBytes = mapping.Bytes();
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for (size_t i = 0; i < aSize; ++i) {
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inBytes[i] = static_cast<uint8_t>(i % 255);
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}
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UnsafeSharedMemoryHandle out;
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ASSERT_TRUE(SerializeAndDeserialize(std::move(handle), &out));
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auto mapping2 = WritableSharedMemoryMapping::Open(std::move(out)).value();
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EXPECT_EQ(mapping2.Size(), aSize);
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auto outBytes = mapping2.Bytes();
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for (size_t i = 0; i < aSize; ++i) {
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EXPECT_EQ(outBytes[i], static_cast<uint8_t>(i % 255));
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}
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}
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TEST(UnsafeSharedMemoryHandle, Empty)
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{ TestUnsafeSharedMemoryHandle(0); }
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TEST(UnsafeSharedMemoryHandle, SmallSize)
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{ TestUnsafeSharedMemoryHandle(2048); }
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} // namespace mozilla::ipc
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