lambda/parallel/map.go

37 lines
659 B
Go

package parallel
import (
"sync"
"git.tuxpa.in/a/lambda"
)
func Map[T any](xs []T, fx func(T) T) []T {
spl := lambda.Split(xs, routineCount)
wg := new(sync.WaitGroup)
wg.Add(len(spl))
for i, v := range spl {
go func(ix int, vx []T) {
spl[ix] = lambda.Map(vx, fx)
wg.Done()
}(i, v)
}
wg.Wait()
return lambda.Flatten(spl)
}
func MapV[T, V any](xs []T, fx func(T) T) []V {
spl := lambda.Split(xs, routineCount)
wg := new(sync.WaitGroup)
wg.Add(len(spl))
tmp := make([][]V, len(spl))
for i, v := range spl {
go func(ix int, vx []T) {
spl[ix] = lambda.Map(vx, fx)
wg.Done()
}(i, v)
}
wg.Wait()
return lambda.Flatten(tmp)
}