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package internal
import (
"context"
"log"
"sync"
"time"
)
func execute(state state, config config) state {
limiterCh := make(chan struct{}, config.CheckConcurrency)
inputCh := make(chan namedCheck)
outputCh := make(chan checkResult)
go func() {
for name, check := range config.Checks {
inputCh <- namedCheck{check, name}
}
close(inputCh)
}()
var outputWg sync.WaitGroup
outputWg.Add(1)
go func() {
for checkResult := range outputCh {
state.update(checkResult)
}
outputWg.Done()
}()
var inputWg sync.WaitGroup
inputWg.Add(len(config.Checks))
for check := range inputCh {
go func(check namedCheck) {
limiterCh <- struct{}{}
defer func() {
<-limiterCh
inputWg.Done()
}()
ctx, cancel := context.WithTimeout(context.Background(),
time.Duration(config.CheckTimeoutS)*time.Second)
defer cancel()
outputCh <- check.execute(ctx)
}(check)
}
inputWg.Wait()
log.Println("All checks completed!")
close(outputCh)
outputWg.Wait()
log.Println("All outputs collected!")
return state
}
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