7c4beee9f9
Migrate to tmpfile and fileno for temp file operations. These calls are supported on MinGW, and the temp files are automatically cleaned up. A Windows variant of ashmem-host is needed to support CursorWindows on host Windows. In Windows, it is not possible to unlink an open file, so the nlink check in ashmem_validate_stat must be made Unix-only. Test: SQLiteDatabaseTest in Google3 Test: libcutils_test_static on Windows Bug: 317884162 Change-Id: I7fc0f1f49406b01549b7f4d7e138cb3e4d79be72
63 lines
2 KiB
C++
63 lines
2 KiB
C++
/*
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* Copyright (C) 2024 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <gtest/gtest.h>
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#include <unistd.h>
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#include <android-base/mapped_file.h>
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#include <android-base/unique_fd.h>
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#include <cutils/ashmem.h>
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/*
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* Tests in AshmemBaseTest are designed to run on Android as well as host
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* platforms (Linux, Mac, Windows).
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*/
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#if defined(_WIN32)
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static inline size_t getpagesize() {
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return 4096;
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}
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#endif
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using android::base::unique_fd;
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TEST(AshmemBaseTest, BasicTest) {
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const size_t size = getpagesize();
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std::vector<uint8_t> data(size);
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std::generate(data.begin(), data.end(), [n = 0]() mutable { return n++ & 0xFF; });
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unique_fd fd = unique_fd(ashmem_create_region(nullptr, size));
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ASSERT_TRUE(fd >= 0);
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ASSERT_TRUE(ashmem_valid(fd));
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ASSERT_EQ(size, static_cast<size_t>(ashmem_get_size_region(fd)));
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std::unique_ptr<android::base::MappedFile> mapped =
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android::base::MappedFile::FromFd(fd, 0, size, PROT_READ | PROT_WRITE);
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EXPECT_TRUE(mapped.get() != nullptr);
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void* region1 = mapped->data();
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EXPECT_TRUE(region1 != nullptr);
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memcpy(region1, data.data(), size);
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ASSERT_EQ(0, memcmp(region1, data.data(), size));
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std::unique_ptr<android::base::MappedFile> mapped2 =
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android::base::MappedFile::FromFd(fd, 0, size, PROT_READ | PROT_WRITE);
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EXPECT_TRUE(mapped2.get() != nullptr);
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void* region2 = mapped2->data();
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EXPECT_TRUE(region2 != nullptr);
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ASSERT_EQ(0, memcmp(region2, data.data(), size));
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}
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