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progress_reporter_manager.go
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/
progress_reporter_manager.go
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package internal
import (
"context"
"sort"
"strings"
"sync"
"github.com/onsi/ginkgo/v2/types"
)
type ProgressReporterManager struct {
lock *sync.Mutex
progressReporters map[int]func() string
prCounter int
}
func NewProgressReporterManager() *ProgressReporterManager {
return &ProgressReporterManager{
progressReporters: map[int]func() string{},
lock: &sync.Mutex{},
}
}
func (prm *ProgressReporterManager) AttachProgressReporter(reporter func() string) func() {
prm.lock.Lock()
defer prm.lock.Unlock()
prm.prCounter += 1
prCounter := prm.prCounter
prm.progressReporters[prCounter] = reporter
return func() {
prm.lock.Lock()
defer prm.lock.Unlock()
delete(prm.progressReporters, prCounter)
}
}
func (prm *ProgressReporterManager) QueryProgressReporters(ctx context.Context, failer *Failer) []string {
prm.lock.Lock()
keys := []int{}
for key := range prm.progressReporters {
keys = append(keys, key)
}
sort.Ints(keys)
reporters := []func() string{}
for _, key := range keys {
reporters = append(reporters, prm.progressReporters[key])
}
prm.lock.Unlock()
if len(reporters) == 0 {
return nil
}
out := []string{}
for _, reporter := range reporters {
reportC := make(chan string, 1)
go func() {
defer func() {
e := recover()
if e != nil {
failer.Panic(types.NewCodeLocationWithStackTrace(1), e)
reportC <- "failed to query attached progress reporter"
}
}()
reportC <- reporter()
}()
var report string
select {
case report = <-reportC:
case <-ctx.Done():
return out
}
if strings.TrimSpace(report) != "" {
out = append(out, report)
}
}
return out
}