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This commit is contained in:
a 2022-03-26 17:26:10 -05:00
parent b85c13a047
commit 066eb8688c
1 changed files with 0 additions and 32 deletions
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32
parallel/parallel.go
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@ -1,9 +1,6 @@
package parallel package parallel
import ( import (
"sync"
"git.tuxpa.in/a/lambda"
) )
var routineCount int = 1 var routineCount int = 1
@ -11,32 +8,3 @@ var routineCount int = 1
func SetRoutineCount(n int) { func SetRoutineCount(n int) {
routineCount = n routineCount = n
} }
func Foldl[T any](xs []T, fx func(T, T) T) T {
spl := lambda.Split(xs, routineCount)
wg := new(sync.WaitGroup)
wg.Add(len(spl))
tmp := make([]T, len(spl))
for i, v := range spl {
go func(ix int, vx []T) {
tmp[ix] = lambda.Foldl(vx, fx)
wg.Done()
}(i, v)
}
wg.Wait()
return lambda.Foldl(tmp, fx)
}
func Foldr[T any](xs []T, fx func(T, T) T) T {
spl := lambda.Split(xs, routineCount)
wg := new(sync.WaitGroup)
wg.Add(len(spl))
tmp := make([]T, len(spl))
for i, v := range spl {
go func(ix int, vx []T) {
tmp[ix] = lambda.Foldr(vx, fx)
wg.Done()
}(i, v)
}
wg.Wait()
return lambda.Foldr(tmp, fx)
}