84 lines
1.6 KiB
Go
84 lines
1.6 KiB
Go
package parallel
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import (
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"sync"
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"git.tuxpa.in/a/lambda"
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)
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func Map[T any](xs []T, fx func(T) T, n ...int) []T {
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rc := routineCount
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if len(n) > 0 {
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rc = n[0]
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}
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spl := lambda.Split(xs, rc)
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wg := new(sync.WaitGroup)
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wg.Add(len(spl))
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for i, v := range spl {
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go func(ix int, vx []T) {
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spl[ix] = lambda.Map(vx, fx)
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wg.Done()
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}(i, v)
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}
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wg.Wait()
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return lambda.Flatten(spl)
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}
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func MapV[T, V any](xs []T, fx func(T) V, n ...int) []V {
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rc := routineCount
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if len(n) > 0 {
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rc = n[0]
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}
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spl := lambda.Split(xs, rc)
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wg := new(sync.WaitGroup)
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wg.Add(len(spl))
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tmp := make([][]V, len(spl))
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for i, v := range spl {
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go func(ix int, vx []T) {
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tmp[ix] = lambda.MapV(vx, fx)
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wg.Done()
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}(i, v)
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}
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wg.Wait()
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return lambda.Flatten(tmp)
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}
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func MapError[T any](xs []T, fx func(T) (T, error), n ...int) ([]T, []error) {
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rc := routineCount
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if len(n) > 0 {
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rc = n[0]
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}
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spl := lambda.Split(xs, rc)
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wg := new(sync.WaitGroup)
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wg.Add(len(spl))
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tmp := make([][]error, len(spl))
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for i, v := range spl {
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go func(ix int, vx []T) {
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spl[ix], tmp[ix] = lambda.MapError(vx, fx)
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wg.Done()
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}(i, v)
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}
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wg.Wait()
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return lambda.Flatten(spl), lambda.Flatten(tmp)
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}
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func MapErrorV[T, V any](xs []T, fx func(T) (V, error), n ...int) ([]V, []error) {
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rc := routineCount
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if len(n) > 0 {
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rc = n[0]
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}
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spl := lambda.Split(xs, rc)
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wg := new(sync.WaitGroup)
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wg.Add(len(spl))
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tmp := make([][]V, len(spl))
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tmp2 := make([][]error, len(spl))
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for i, v := range spl {
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go func(ix int, vx []T) {
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tmp[ix], tmp2[ix] = lambda.MapErrorV(vx, fx)
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wg.Done()
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}(i, v)
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}
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wg.Wait()
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return lambda.Flatten(tmp), lambda.Flatten(tmp2)
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}
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