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47 lines
1.4 KiB
47 lines
1.4 KiB
/* |
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* Copyright (C) 2016 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 "chre/platform/system_time.h" |
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#include <cerrno> |
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#include <cstring> |
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#include <ctime> |
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#include "chre/platform/assert.h" |
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#include "chre/platform/log.h" |
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namespace chre { |
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Nanoseconds SystemTime::getMonotonicTime() { |
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struct timespec timeNow; |
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if (clock_gettime(CLOCK_MONOTONIC, &timeNow)) { |
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CHRE_ASSERT_LOG(false, "Failed to obtain time with error: %s", |
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strerror(errno)); |
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return Nanoseconds(UINT64_MAX); |
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} |
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// The C++11 spec guarantees that tv_sec and tv_nsec only have values >= 0 and |
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// [0, 999999999]. It is safe to static cast these to their unsigned |
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// counterpart. |
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return Seconds(static_cast<uint64_t>(timeNow.tv_sec)) |
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+ Nanoseconds(static_cast<uint64_t>(timeNow.tv_nsec)); |
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} |
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int64_t SystemTime::getEstimatedHostTimeOffset() { |
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return 0; |
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} |
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} // namespace chre
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