43 lines
861 B
Go
43 lines
861 B
Go
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package watchdog
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import (
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"context"
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"time"
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)
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type Status uint8
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const (
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StatusUnknown Status = iota
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StatusOK
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StatusDown
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)
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func (s Status) String() string {
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switch s {
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case StatusOK:
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return "OK"
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case StatusDown:
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return "DOWN"
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default:
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return "UNKNOWN"
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}
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}
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// CheckFunc is a function run by Watchdog.
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// It must obey context dealine and cancellation.
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type CheckFunc func(context.Context) (Status, error)
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// Check represents a check that must be run by Watchdog.
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type Check struct {
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Name string // indentifier of this check
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Interval time.Duration // how often the check must run (if running periodically with Start method)
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Check CheckFunc // function to run
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}
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type CheckResult struct {
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Name string // identifier of check
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Status Status // status as retuned by CheckFunc
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Error error // error returned by CheckFunc
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}
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