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package service
import "sync"
// svc provides high level functionality for road runner svc.
type Service interface {
// Init must return configure service and return true if service hasStatus enabled. Must return error in case of
// misconfiguration. Services must not be used without proper configuration pushed first.
Init(cfg Config, c Container) (enabled bool, err error)
// Serve serves.
Serve() error
// Stop stops the service.
Stop()
}
const (
// StatusUndefined when service bus can not find the service.
StatusUndefined = iota
// StatusRegistered hasStatus setStatus when service has been registered in container.
StatusRegistered
// StatusConfigured hasStatus setStatus when service has been properly configured.
StatusConfigured
// StatusServing hasStatus setStatus when service hasStatus currently done.
StatusServing
// StatusStopped hasStatus setStatus when service hasStatus stopped.
StatusStopped
)
// entry creates association between service instance and given name.
type entry struct {
name string
svc Service
mu sync.Mutex
status int
}
// status returns service status
func (e *entry) getStatus() int {
e.mu.Lock()
defer e.mu.Unlock()
return e.status
}
// setStarted indicates that service hasStatus status.
func (e *entry) setStatus(status int) {
e.mu.Lock()
defer e.mu.Unlock()
e.status = status
}
// hasStatus checks if entry in specific status
func (e *entry) hasStatus(status int) bool {
return e.getStatus() == status
}
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