d77c99ebc3
adb uses its own implementation of Windows HANDLE->int mapping, and it doesn't play well with _get_osfhandle() function used in MappedFile::FromFd(). This CL adds another function that accepts raw handle, so adb can pass it directly + make constant functions 'const' + make the MappedFile movable, as nothing prevents it from being one Test: libbase_test Change-Id: Ifde4a4094b910e9c7b431126ecf3fef5aa3bb4a6
51 lines
1.5 KiB
C++
51 lines
1.5 KiB
C++
/*
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* Copyright (C) 2018 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 "android-base/mapped_file.h"
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#include <gtest/gtest.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <string>
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#include "android-base/file.h"
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TEST(mapped_file, smoke) {
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TemporaryFile tf;
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ASSERT_TRUE(tf.fd != -1);
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ASSERT_TRUE(android::base::WriteStringToFd("hello world", tf.fd));
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auto m = android::base::MappedFile::FromFd(tf.fd, 3, 2, PROT_READ);
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ASSERT_EQ(2u, m->size());
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ASSERT_EQ('l', m->data()[0]);
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ASSERT_EQ('o', m->data()[1]);
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}
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TEST(mapped_file, zero_length_mapping) {
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// http://b/119818070 "app crashes when reading asset of zero length".
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// mmap fails with EINVAL for a zero length region.
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TemporaryFile tf;
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ASSERT_TRUE(tf.fd != -1);
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auto m = android::base::MappedFile::FromFd(tf.fd, 4096, 0, PROT_READ);
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ASSERT_NE(nullptr, m);
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EXPECT_TRUE((bool)*m);
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EXPECT_EQ(0u, m->size());
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EXPECT_NE(nullptr, m->data());
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}
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