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-rw-r--r--test/syscalls/linux/preadv2.cc279
1 files changed, 0 insertions, 279 deletions
diff --git a/test/syscalls/linux/preadv2.cc b/test/syscalls/linux/preadv2.cc
deleted file mode 100644
index aac960130..000000000
--- a/test/syscalls/linux/preadv2.cc
+++ /dev/null
@@ -1,279 +0,0 @@
-// Copyright 2018 The gVisor Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include <fcntl.h>
-#include <sys/syscall.h>
-#include <sys/types.h>
-#include <sys/uio.h>
-
-#include <string>
-#include <vector>
-
-#include "gtest/gtest.h"
-#include "gtest/gtest.h"
-#include "absl/memory/memory.h"
-#include "test/syscalls/linux/file_base.h"
-#include "test/util/file_descriptor.h"
-#include "test/util/temp_path.h"
-#include "test/util/test_util.h"
-
-namespace gvisor {
-namespace testing {
-
-namespace {
-
-#ifndef SYS_preadv2
-#if defined(__x86_64__)
-#define SYS_preadv2 327
-#else
-#error "Unknown architecture"
-#endif
-#endif // SYS_preadv2
-
-#ifndef RWF_HIPRI
-#define RWF_HIPRI 0x1
-#endif // RWF_HIPRI
-
-constexpr int kBufSize = 1024;
-
-std::string SetContent() {
- std::string content;
- for (int i = 0; i < kBufSize; i++) {
- content += static_cast<char>((i % 10) + '0');
- }
- return content;
-}
-
-ssize_t preadv2(unsigned long fd, const struct iovec* iov, unsigned long iovcnt,
- off_t offset, unsigned long flags) {
- // syscall on preadv2 does some weird things (see man syscall and search
- // preadv2), so we insert a 0 to word align the flags argument on native.
- return syscall(SYS_preadv2, fd, iov, iovcnt, offset, 0, flags);
-}
-
-// This test is the base case where we call preadv (no offset, no flags).
-TEST(Preadv2Test, TestBaseCall) {
- SKIP_IF(preadv2(-1, nullptr, 0, 0, 0) < 0 && errno == ENOSYS);
-
- std::string content = SetContent();
-
- const TempPath file = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFileWith(
- GetAbsoluteTestTmpdir(), content, TempPath::kDefaultFileMode));
- const FileDescriptor fd =
- ASSERT_NO_ERRNO_AND_VALUE(Open(file.path(), O_RDONLY));
-
- std::vector<char> buf(kBufSize);
- struct iovec iov[2];
- iov[0].iov_base = buf.data();
- iov[0].iov_len = buf.size() / 2;
- iov[1].iov_base = static_cast<char*>(iov[0].iov_base) + (content.size() / 2);
- iov[1].iov_len = content.size() / 2;
-
- EXPECT_THAT(preadv2(fd.get(), iov, /*iovcnt*/ 2, /*offset=*/0, /*flags=*/0),
- SyscallSucceedsWithValue(kBufSize));
-
- EXPECT_EQ(content, std::string(buf.data(), buf.size()));
-}
-
-// This test is where we call preadv with an offset and no flags.
-TEST(Preadv2Test, TestValidPositiveOffset) {
- SKIP_IF(preadv2(-1, nullptr, 0, 0, 0) < 0 && errno == ENOSYS);
-
- std::string content = SetContent();
- const std::string prefix = "0";
-
- const TempPath file = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFileWith(
- GetAbsoluteTestTmpdir(), prefix + content, TempPath::kDefaultFileMode));
- const FileDescriptor fd =
- ASSERT_NO_ERRNO_AND_VALUE(Open(file.path(), O_RDONLY));
-
- std::vector<char> buf(kBufSize, '0');
- struct iovec iov;
- iov.iov_base = buf.data();
- iov.iov_len = buf.size();
-
- EXPECT_THAT(preadv2(fd.get(), &iov, /*iovcnt=*/1, /*offset=*/prefix.size(),
- /*flags=*/0),
- SyscallSucceedsWithValue(kBufSize));
-
- EXPECT_THAT(lseek(fd.get(), 0, SEEK_CUR), SyscallSucceedsWithValue(0));
-
- EXPECT_EQ(content, std::string(buf.data(), buf.size()));
-}
-
-// This test is the base case where we call readv by using -1 as the offset. The
-// read should use the file offset, so the test increments it by one prior to
-// calling preadv2.
-TEST(Preadv2Test, TestNegativeOneOffset) {
- SKIP_IF(preadv2(-1, nullptr, 0, 0, 0) < 0 && errno == ENOSYS);
-
- std::string content = SetContent();
- const std::string prefix = "231";
-
- const TempPath file = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFileWith(
- GetAbsoluteTestTmpdir(), prefix + content, TempPath::kDefaultFileMode));
- const FileDescriptor fd =
- ASSERT_NO_ERRNO_AND_VALUE(Open(file.path(), O_RDONLY));
-
- ASSERT_THAT(lseek(fd.get(), prefix.size(), SEEK_SET),
- SyscallSucceedsWithValue(prefix.size()));
-
- std::vector<char> buf(kBufSize, '0');
- struct iovec iov;
- iov.iov_base = buf.data();
- iov.iov_len = buf.size();
-
- EXPECT_THAT(preadv2(fd.get(), &iov, /*iovcnt=*/1, /*offset=*/-1, /*flags=*/0),
- SyscallSucceedsWithValue(kBufSize));
-
- EXPECT_THAT(lseek(fd.get(), 0, SEEK_CUR),
- SyscallSucceedsWithValue(prefix.size() + buf.size()));
-
- EXPECT_EQ(content, std::string(buf.data(), buf.size()));
-}
-
-// preadv2 requires if the RWF_HIPRI flag is passed, the fd must be opened with
-// O_DIRECT. This test implements a correct call with the RWF_HIPRI flag.
-TEST(Preadv2Test, TestCallWithRWF_HIPRI) {
- SKIP_IF(preadv2(-1, nullptr, 0, 0, 0) < 0 && errno == ENOSYS);
-
- std::string content = SetContent();
-
- const TempPath file = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFileWith(
- GetAbsoluteTestTmpdir(), content, TempPath::kDefaultFileMode));
- const FileDescriptor fd =
- ASSERT_NO_ERRNO_AND_VALUE(Open(file.path(), O_RDONLY));
-
- EXPECT_THAT(fsync(fd.get()), SyscallSucceeds());
-
- std::vector<char> buf(kBufSize, '0');
- struct iovec iov;
- iov.iov_base = buf.data();
- iov.iov_len = buf.size();
-
- EXPECT_THAT(
- preadv2(fd.get(), &iov, /*iovcnt=*/1, /*offset=*/0, /*flags=*/RWF_HIPRI),
- SyscallSucceedsWithValue(kBufSize));
-
- EXPECT_THAT(lseek(fd.get(), 0, SEEK_CUR), SyscallSucceedsWithValue(0));
-
- EXPECT_EQ(content, std::string(buf.data(), buf.size()));
-}
-// This test calls preadv2 with an invalid flag.
-TEST(Preadv2Test, TestInvalidFlag) {
- SKIP_IF(preadv2(-1, nullptr, 0, 0, 0) < 0 && errno == ENOSYS);
-
- const TempPath file = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFileWith(
- GetAbsoluteTestTmpdir(), "", TempPath::kDefaultFileMode));
- const FileDescriptor fd =
- ASSERT_NO_ERRNO_AND_VALUE(Open(file.path(), O_RDONLY | O_DIRECT));
-
- std::vector<char> buf(kBufSize, '0');
- struct iovec iov;
- iov.iov_base = buf.data();
- iov.iov_len = buf.size();
-
- EXPECT_THAT(preadv2(fd.get(), &iov, /*iovcnt=*/1,
- /*offset=*/0, /*flags=*/0xF0),
- SyscallFailsWithErrno(EOPNOTSUPP));
-}
-
-// This test calls preadv2 with an invalid offset.
-TEST(Preadv2Test, TestInvalidOffset) {
- SKIP_IF(preadv2(-1, nullptr, 0, 0, 0) < 0 && errno == ENOSYS);
-
- const TempPath file = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFileWith(
- GetAbsoluteTestTmpdir(), "", TempPath::kDefaultFileMode));
- const FileDescriptor fd =
- ASSERT_NO_ERRNO_AND_VALUE(Open(file.path(), O_RDONLY | O_DIRECT));
-
- auto iov = absl::make_unique<struct iovec[]>(1);
- iov[0].iov_base = nullptr;
- iov[0].iov_len = 0;
-
- EXPECT_THAT(preadv2(fd.get(), iov.get(), /*iovcnt=*/1, /*offset=*/-8,
- /*flags=*/RWF_HIPRI),
- SyscallFailsWithErrno(EINVAL));
-}
-
-// This test calls preadv with a file set O_WRONLY.
-TEST(Preadv2Test, TestUnreadableFile) {
- SKIP_IF(preadv2(-1, nullptr, 0, 0, 0) < 0 && errno == ENOSYS);
-
- const TempPath file = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFileWith(
- GetAbsoluteTestTmpdir(), "", TempPath::kDefaultFileMode));
- const FileDescriptor fd =
- ASSERT_NO_ERRNO_AND_VALUE(Open(file.path(), O_WRONLY));
-
- auto iov = absl::make_unique<struct iovec[]>(1);
- iov[0].iov_base = nullptr;
- iov[0].iov_len = 0;
-
- EXPECT_THAT(preadv2(fd.get(), iov.get(), /*iovcnt=*/1,
- /*offset=*/0, /*flags=*/0),
- SyscallFailsWithErrno(EBADF));
-}
-
-// Calling preadv2 with a non-negative offset calls preadv. Calling preadv with
-// an unseekable file is not allowed. A pipe is used for an unseekable file.
-TEST(Preadv2Test, TestUnseekableFileInvalid) {
- SKIP_IF(preadv2(-1, nullptr, 0, 0, 0) < 0 && errno == ENOSYS);
-
- int pipe_fds[2];
-
- ASSERT_THAT(pipe(pipe_fds), SyscallSucceeds());
-
- auto iov = absl::make_unique<struct iovec[]>(1);
- iov[0].iov_base = nullptr;
- iov[0].iov_len = 0;
-
- EXPECT_THAT(preadv2(pipe_fds[0], iov.get(), /*iovcnt=*/1,
- /*offset=*/2, /*flags=*/0),
- SyscallFailsWithErrno(ESPIPE));
-
- EXPECT_THAT(close(pipe_fds[0]), SyscallSucceeds());
- EXPECT_THAT(close(pipe_fds[1]), SyscallSucceeds());
-}
-
-TEST(Preadv2Test, TestUnseekableFileValid) {
- SKIP_IF(preadv2(-1, nullptr, 0, 0, 0) < 0 && errno == ENOSYS);
-
- int pipe_fds[2];
-
- ASSERT_THAT(pipe(pipe_fds), SyscallSucceeds());
-
- std::vector<char> content(32, 'X');
-
- EXPECT_THAT(write(pipe_fds[1], content.data(), content.size()),
- SyscallSucceedsWithValue(content.size()));
-
- std::vector<char> buf(content.size());
- auto iov = absl::make_unique<struct iovec[]>(1);
- iov[0].iov_base = buf.data();
- iov[0].iov_len = buf.size();
-
- EXPECT_THAT(preadv2(pipe_fds[0], iov.get(), /*iovcnt=*/1,
- /*offset=*/static_cast<off_t>(-1), /*flags=*/0),
- SyscallSucceedsWithValue(buf.size()));
-
- EXPECT_EQ(content, buf);
-
- EXPECT_THAT(close(pipe_fds[0]), SyscallSucceeds());
- EXPECT_THAT(close(pipe_fds[1]), SyscallSucceeds());
-}
-
-} // namespace
-
-} // namespace testing
-} // namespace gvisor
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