35 lines
1.2 KiB
Go
35 lines
1.2 KiB
Go
package devices
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import (
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"log"
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"time"
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)
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var cpuFuncs []func(map[string]int, time.Duration, bool) map[string]error
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// RegisterCPU adds a new CPU device to the CPU widget. labels returns the
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// names of the devices; they should be as short as possible, and the indexes
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// of the returned slice should align with the values returned by the percents
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// function. The percents function should return the percent CPU usage of the
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// device(s), sliced over the time duration supplied. If the bool argument to
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// percents is true, it is expected that the return slice
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//
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// labels may be called once and the value cached. This means the number of
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// cores should not change dynamically.
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func RegisterCPU(f func(map[string]int, time.Duration, bool) map[string]error) {
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cpuFuncs = append(cpuFuncs, f)
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}
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// CPUPercent calculates the percentage of cpu used either per CPU or combined.
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// Returns one value per cpu, or a single value if percpu is set to false.
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func UpdateCPU(cpus map[string]int, interval time.Duration, logical bool) {
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for _, f := range cpuFuncs {
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errs := f(cpus, interval, logical)
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if errs != nil {
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for k, e := range errs {
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log.Printf("%s: %s", k, e)
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}
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}
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}
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}
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