75 lines
2.1 KiB
C++
75 lines
2.1 KiB
C++
// 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.
|
|
|
|
#ifndef GVISOR_TEST_UTIL_TIMER_UTIL_H_
|
|
#define GVISOR_TEST_UTIL_TIMER_UTIL_H_
|
|
|
|
#include <errno.h>
|
|
#include <sys/time.h>
|
|
|
|
#include <functional>
|
|
|
|
#include "gmock/gmock.h"
|
|
#include "absl/time/time.h"
|
|
#include "test/util/cleanup.h"
|
|
#include "test/util/logging.h"
|
|
#include "test/util/posix_error.h"
|
|
#include "test/util/test_util.h"
|
|
|
|
namespace gvisor {
|
|
namespace testing {
|
|
|
|
// MonotonicTimer is a simple timer that uses a monotonic clock.
|
|
class MonotonicTimer {
|
|
public:
|
|
MonotonicTimer() {}
|
|
absl::Duration Duration() {
|
|
struct timespec ts;
|
|
TEST_CHECK(clock_gettime(CLOCK_MONOTONIC, &ts) == 0);
|
|
return absl::TimeFromTimespec(ts) - start_;
|
|
}
|
|
|
|
void Start() {
|
|
struct timespec ts;
|
|
TEST_CHECK(clock_gettime(CLOCK_MONOTONIC, &ts) == 0);
|
|
start_ = absl::TimeFromTimespec(ts);
|
|
}
|
|
|
|
protected:
|
|
absl::Time start_;
|
|
};
|
|
|
|
// Sets the given itimer and returns a cleanup function that restores the
|
|
// previous itimer when it goes out of scope.
|
|
inline PosixErrorOr<Cleanup> ScopedItimer(int which,
|
|
struct itimerval const& new_value) {
|
|
struct itimerval old_value;
|
|
int rc = setitimer(which, &new_value, &old_value);
|
|
MaybeSave();
|
|
if (rc < 0) {
|
|
return PosixError(errno, "setitimer failed");
|
|
}
|
|
return Cleanup(std::function<void(void)>([which, old_value] {
|
|
EXPECT_THAT(setitimer(which, &old_value, nullptr), SyscallSucceeds());
|
|
}));
|
|
}
|
|
|
|
// Returns the current time.
|
|
absl::Time Now(clockid_t id);
|
|
|
|
} // namespace testing
|
|
} // namespace gvisor
|
|
|
|
#endif // GVISOR_TEST_UTIL_TIMER_UTIL_H_
|