| 1 | //===-- Unittests for sendfile --------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "src/__support/CPP/string_view.h" |
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| 10 | #include "src/fcntl/open.h" |
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| 11 | #include "src/sys/sendfile/sendfile.h" |
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| 12 | #include "src/unistd/close.h" |
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| 13 | #include "src/unistd/read.h" |
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| 14 | #include "src/unistd/unlink.h" |
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| 15 | #include "src/unistd/write.h" |
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| 16 | #include "test/UnitTest/ErrnoCheckingTest.h" |
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| 17 | #include "test/UnitTest/ErrnoSetterMatcher.h" |
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| 18 | #include "test/UnitTest/Test.h" |
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| 19 | |
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| 20 | #include "hdr/fcntl_macros.h" |
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| 21 | #include <sys/stat.h> |
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| 22 | |
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| 23 | using namespace LIBC_NAMESPACE::testing::ErrnoSetterMatcher; |
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| 24 | using LlvmLibcSendfileTest = LIBC_NAMESPACE::testing::ErrnoCheckingTest; |
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| 25 | namespace cpp = LIBC_NAMESPACE::cpp; |
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| 26 | |
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| 27 | TEST_F(LlvmLibcSendfileTest, CreateAndTransfer) { |
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| 28 | // The test strategy is to |
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| 29 | // 1. Create a temporary file with known data. |
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| 30 | // 2. Use sendfile to copy it to another file. |
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| 31 | // 3. Make sure that the data was actually copied. |
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| 32 | // 4. Clean up the temporary files. |
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| 33 | constexpr const char *IN_FILE = "testdata/sendfile_in.test" ; |
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| 34 | constexpr const char *OUT_FILE = "testdata/sendfile_out.test" ; |
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| 35 | const char IN_DATA[] = "sendfile test" ; |
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| 36 | constexpr ssize_t IN_SIZE = ssize_t(sizeof(IN_DATA)); |
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| 37 | |
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| 38 | int in_fd = LIBC_NAMESPACE::open(IN_FILE, O_CREAT | O_WRONLY, S_IRWXU); |
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| 39 | ASSERT_GT(in_fd, 0); |
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| 40 | ASSERT_ERRNO_SUCCESS(); |
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| 41 | ASSERT_EQ(LIBC_NAMESPACE::write(in_fd, IN_DATA, IN_SIZE), IN_SIZE); |
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| 42 | ASSERT_THAT(LIBC_NAMESPACE::close(in_fd), Succeeds(0)); |
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| 43 | |
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| 44 | in_fd = LIBC_NAMESPACE::open(IN_FILE, O_RDONLY); |
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| 45 | ASSERT_GT(in_fd, 0); |
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| 46 | ASSERT_ERRNO_SUCCESS(); |
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| 47 | int out_fd = LIBC_NAMESPACE::open(OUT_FILE, O_CREAT | O_WRONLY, S_IRWXU); |
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| 48 | ASSERT_GT(out_fd, 0); |
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| 49 | ASSERT_ERRNO_SUCCESS(); |
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| 50 | ssize_t size = LIBC_NAMESPACE::sendfile(in_fd, out_fd, nullptr, IN_SIZE); |
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| 51 | ASSERT_EQ(size, IN_SIZE); |
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| 52 | ASSERT_THAT(LIBC_NAMESPACE::close(in_fd), Succeeds(0)); |
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| 53 | ASSERT_THAT(LIBC_NAMESPACE::close(out_fd), Succeeds(0)); |
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| 54 | |
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| 55 | out_fd = LIBC_NAMESPACE::open(OUT_FILE, O_RDONLY); |
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| 56 | ASSERT_GT(out_fd, 0); |
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| 57 | ASSERT_ERRNO_SUCCESS(); |
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| 58 | char buf[IN_SIZE]; |
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| 59 | ASSERT_EQ(IN_SIZE, LIBC_NAMESPACE::read(out_fd, buf, IN_SIZE)); |
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| 60 | ASSERT_EQ(cpp::string_view(buf), cpp::string_view(IN_DATA)); |
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| 61 | |
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| 62 | ASSERT_THAT(LIBC_NAMESPACE::unlink(IN_FILE), Succeeds(0)); |
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| 63 | ASSERT_THAT(LIBC_NAMESPACE::unlink(OUT_FILE), Succeeds(0)); |
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| 64 | } |
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| 65 | |
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