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38 lines
1.0 KiB
Go
38 lines
1.0 KiB
Go
// Copyright 2018 psgo authors
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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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// Package host extracts data from the host, such as the system's boot time or
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// the tick rate of the system clock.
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package host
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/*
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#include <unistd.h>
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*/
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import "C"
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var (
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// cache host queries to redundant calculations
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clockTicks *int64
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bootTime *int64
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)
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// ClockTicks returns sysconf(SC_CLK_TCK).
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func ClockTicks() (int64, error) {
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if clockTicks == nil {
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ticks := int64(C.sysconf(C._SC_CLK_TCK))
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clockTicks = &ticks
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}
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return *clockTicks, nil
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}
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