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Constants ¶
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Variables ¶
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Functions ¶
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Types ¶
type AnySPile ¶
type AnySPile struct {
// contains filtered or unexported fields
}
AnySPile is a hybrid container for a lazily and concurrently populated growing-only slice of items (of type `[]interface{}`) which may be traversed in parallel to it's growth.
Usage for a pile `p`:
p := MakeAnySPile(128, 32)
Have it grow concurrently using multiple:
var item []interface{} = something
p.Pile(item)
in as many go routines as You may seem fit.
In parallel, You may either traverse `p` in parallel right away:
for item, ok := p.Iter(); ok; item, ok = p.Next() { ... do sth with item ... }
Here p.Iter() starts a new transversal with the first item (if any), and p.Next() keeps traverses the AnySPile.
or traverse blocking / awaiting close first:
for item := range <-p.Done() { ... do sth with item ... }
or use the result when available:
r, p := <-p.Done(), nil
Hint: here we get the result in `r` and at the same time discard / deallocate / forget the pile `p` itself.
Note: The traversal is *not* intended to be concurrency safe! Thus: You may call `Pile` concurrently to Your traversal, but use of either `Done` or `Iter` and `Next` *must* be confined to a single go routine (thread).
func MakeAnySPile ¶
MakeAnySPile returns a (pointer to a) fresh pile of items (of type `[]interface{}`) with size as initial capacity and with buff as initial leeway, allowing as many Pile's to execute non-blocking before respective Done or Next's.
func (*AnySPile) Close ¶
Close - call once when everything has been piled.
Close intentionally implements io.Closer ¶
Note: After Close(), any Close(...) will panic and any Pile(...) will panic and any Done() or Next() will return immediately: no eventual blocking, that is.
func (*AnySPile) Done ¶
func (d *AnySPile) Done() (done <-chan [][]interface{})
Done returns a channel which emits the result (as slice of AnyS) once the pile is closed.
Users of Done() *must not* iterate (via Iter() Next()...) before the done-channel is closed!
Done is a convenience - useful iff You do not like/need to start any traversal before the pile is fully populated. Once the pile is closed, Done() will signal in constant time.
Note: Upon signalling, the pile is reset to it's tip, so You may traverse it (via Next) right away. Usage for a pile `p`: Traverse blocking / awaiting close first:
for item := range <-p.Done() { ... do sth with item ... }
or use the result when available
r, p := <-p.Done(), nil
while discaring the pile itself.
func (*AnySPile) Iter ¶
Iter puts the pile iterator back to the beginning and returns the first `Next()`, iff any. Usage for a pile `p`:
for item, ok := p.Iter(); ok; item, ok = p.Next() { ... do sth with item ... }
type Pile ¶
type Pile struct {
// contains filtered or unexported fields
}
Pile is a hybrid container for a lazily and concurrently populated growing-only slice of items (of type `interface{}`) which may be traversed in parallel to it's growth.
Usage for a pile `p`:
p := MakePile(128, 32)
Have it grow concurrently using multiple:
var item interface{} = something
p.Pile(item)
in as many go routines as You may seem fit.
In parallel, You may either traverse `p` in parallel right away:
for item, ok := p.Iter(); ok; item, ok = p.Next() { ... do sth with item ... }
Here p.Iter() starts a new transversal with the first item (if any), and p.Next() keeps traverses the Pile.
or traverse blocking / awaiting close first:
for item := range <-p.Done() { ... do sth with item ... }
or use the result when available:
r, p := <-p.Done(), nil
Hint: here we get the result in `r` and at the same time discard / deallocate / forget the pile `p` itself.
Note: The traversal is *not* intended to be concurrency safe! Thus: You may call `Pile` concurrently to Your traversal, but use of either `Done` or `Iter` and `Next` *must* be confined to a single go routine (thread).
func MakePile ¶
MakePile returns a (pointer to a) fresh pile of items (of type `interface{}`) with size as initial capacity and with buff as initial leeway, allowing as many Pile's to execute non-blocking before respective Done or Next's.
func (*Pile) Close ¶
Close - call once when everything has been piled.
Close intentionally implements io.Closer ¶
Note: After Close(), any Close(...) will panic and any Pile(...) will panic and any Done() or Next() will return immediately: no eventual blocking, that is.
func (*Pile) Done ¶
func (d *Pile) Done() (done <-chan []interface{})
Done returns a channel which emits the result (as slice of ) once the pile is closed.
Users of Done() *must not* iterate (via Iter() Next()...) before the done-channel is closed!
Done is a convenience - useful iff You do not like/need to start any traversal before the pile is fully populated. Once the pile is closed, Done() will signal in constant time.
Note: Upon signalling, the pile is reset to it's tip, so You may traverse it (via Next) right away. Usage for a pile `p`: Traverse blocking / awaiting close first:
for item := range <-p.Done() { ... do sth with item ... }
or use the result when available
r, p := <-p.Done(), nil
while discaring the pile itself.
func (*Pile) Iter ¶
Iter puts the pile iterator back to the beginning and returns the first `Next()`, iff any. Usage for a pile `p`:
for item, ok := p.Iter(); ok; item, ok = p.Next() { ... do sth with item ... }
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