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package submitqueue
import (
"sync"
"time"
)
// Runner supervises the submit queue and records historical data about it
type Runner struct {
mut sync.Mutex
submitQueue *SubmitQueue
currentlyRunning *time.Time
results []*Result
}
// NewRunner initializes a new runner object
func NewRunner(sq *SubmitQueue) *Runner {
return &Runner{
submitQueue: sq,
results: []*Result{},
}
}
// GetState returns a copy of all the state for the frontend
func (r *Runner) GetState() (SubmitQueue, *time.Time, []*Result) {
r.mut.Lock()
defer r.mut.Unlock()
return *r.submitQueue, r.currentlyRunning, r.results
}
// Trigger starts a new batch job
// TODO: make sure only one batch job is started at the same time
// if a batch job is already started, ignore the newest request
// TODO: be more granular in dry-run mode
func (r *Runner) Trigger(fetchOnly bool) {
r.mut.Lock()
if r.currentlyRunning != nil {
return
}
now := time.Now()
r.currentlyRunning = &now
r.mut.Unlock()
defer func() {
r.mut.Lock()
r.currentlyRunning = nil
r.mut.Unlock()
}()
result := r.submitQueue.Run(fetchOnly)
r.mut.Lock()
// drop tail if size > 10
if len(r.results) > 10 {
r.results = append([]*Result{result}, r.results[:9]...)
} else {
r.results = append([]*Result{result}, r.results...)
}
r.mut.Unlock()
}
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