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package internal
import (
"fmt"
"sync/atomic"
"github.com/spiral/roadrunner/v2/pkg/states"
)
// State represents WorkerProcess status and updated time.
type State interface {
fmt.Stringer
// Value returns WorkerState value
Value() int64
// Set sets the WorkerState
Set(value int64)
// NumJobs shows how many times WorkerProcess was invoked
NumExecs() uint64
// IsActive returns true if WorkerProcess not Inactive or Stopped
IsActive() bool
// RegisterExec using to registering php executions
RegisterExec()
// SetLastUsed sets worker last used time
SetLastUsed(lu uint64)
// LastUsed return worker last used time
LastUsed() uint64
}
type WorkerState struct {
value int64
numExecs uint64
// to be lightweight, use UnixNano
lastUsed uint64
}
// Thread safe
func NewWorkerState(value int64) *WorkerState {
return &WorkerState{value: value}
}
// String returns current WorkerState as string.
func (s *WorkerState) String() string {
switch s.Value() {
case states.StateInactive:
return "inactive"
case states.StateReady:
return "ready"
case states.StateWorking:
return "working"
case states.StateInvalid:
return "invalid"
case states.StateStopped:
return "stopped"
case states.StateErrored:
return "errored"
}
return "undefined"
}
// NumExecs returns number of registered WorkerProcess execs.
func (s *WorkerState) NumExecs() uint64 {
return atomic.LoadUint64(&s.numExecs)
}
// Value WorkerState returns WorkerState value
func (s *WorkerState) Value() int64 {
return atomic.LoadInt64(&s.value)
}
// IsActive returns true if WorkerProcess not Inactive or Stopped
func (s *WorkerState) IsActive() bool {
val := s.Value()
return val == states.StateWorking || val == states.StateReady
}
// change WorkerState value (status)
func (s *WorkerState) Set(value int64) {
atomic.StoreInt64(&s.value, value)
}
// register new execution atomically
func (s *WorkerState) RegisterExec() {
atomic.AddUint64(&s.numExecs, 1)
}
// Update last used time
func (s *WorkerState) SetLastUsed(lu uint64) {
atomic.StoreUint64(&s.lastUsed, lu)
}
func (s *WorkerState) LastUsed() uint64 {
return atomic.LoadUint64(&s.lastUsed)
}
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