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// 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 <stdio.h>
#include <sys/syscall.h>
#include <unistd.h>
#include <string>
#include "gtest/gtest.h"
#include "test/util/temp_path.h"
#include "test/util/test_util.h"
namespace gvisor {
namespace testing {
namespace {
TEST(SyncTest, SyncEverything) {
ASSERT_THAT(syscall(SYS_sync), SyscallSucceeds());
}
TEST(SyncTest, SyncFileSytem) {
int fd;
auto f = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFile());
ASSERT_THAT(fd = open(f.path().c_str(), O_RDONLY), SyscallSucceeds());
EXPECT_THAT(syncfs(fd), SyscallSucceeds());
EXPECT_THAT(close(fd), SyscallSucceeds());
}
TEST(SyncTest, SyncFromPipe) {
int pipes[2];
EXPECT_THAT(pipe(pipes), SyscallSucceeds());
EXPECT_THAT(syncfs(pipes[0]), SyscallSucceeds());
EXPECT_THAT(syncfs(pipes[1]), SyscallSucceeds());
EXPECT_THAT(close(pipes[0]), SyscallSucceeds());
EXPECT_THAT(close(pipes[1]), SyscallSucceeds());
}
TEST(SyncTest, CannotSyncFileSystemAtBadFd) {
EXPECT_THAT(syncfs(-1), SyscallFailsWithErrno(EBADF));
}
TEST(SyncTest, CannotSyncFileSystemAtOpathFD) {
SKIP_IF(IsRunningWithVFS1());
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_PATH));
EXPECT_THAT(syncfs(fd.get()), SyscallFailsWithErrno(EBADF));
}
} // namespace
} // namespace testing
} // namespace gvisor
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