30 lines
1.2 KiB
C
30 lines
1.2 KiB
C
/******************************************************************************
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*
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* Copyright (C) 2015 Google, Inc.
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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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******************************************************************************/
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#pragma once
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#include <stdint.h>
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// Get the OS boot time in milliseconds.
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//
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// NOTE: The return value will rollover every 49.7 days,
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// hence it cannot be used for absolute time comparison.
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// Relative time comparison using 32-bits integers such
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// as (t2_u32 - t1_u32 < delta_u32) should work as expected as long
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// as there is no multiple rollover between t2_u32 and t1_u32.
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uint32_t time_get_os_boottime_ms(void);
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