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finish sorted queue

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cubixle
2024-02-22 20:41:15 +00:00
parent 6da7c0a89a
commit 927d03dddd
2 changed files with 30 additions and 12 deletions
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31
sorted_queue/main.go
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@@ -1,6 +1,9 @@
package queue package queue
import "sync" import (
"log"
"sync"
)
type Item struct { type Item struct {
ID string ID string
@@ -36,16 +39,22 @@ func (q *queue) Put(r *Item) bool {
q.queue = append(q.queue, r) q.queue = append(q.queue, r)
if len(q.queue) > 0 { qu := q.queue
// sort the queue i := 1
for i := len(q.queue); i > 0; i-- { for i < len(qu) {
if q.queue[i].Priority > q.queue[i-1].Priority { j := i
q.queue[i] = q.queue[i-1] for j >= 1 && qu[j].Priority > qu[j-1].Priority {
q.queue[i-1] = q.queue[i] tmp := qu[j-1]
} qu[j-1] = qu[j]
qu[j] = tmp
j--
} }
i++
} }
q.queue = qu
return true return true
} }
@@ -67,3 +76,9 @@ func (q *queue) GetNext() *Item {
return r return r
} }
func (q *queue) Display() {
for _, i := range q.queue {
log.Println(i)
}
}

11
sorted_queue/main_test.go
View File

@@ -18,15 +18,18 @@ func TestQueue(t *testing.T) {
t.Fatal("didn't get a item") t.Fatal("didn't get a item")
} }
if v.ID != "bbb" { if v.ID != "bbb" {
t.Fatal("id wasn't what we expected") t.Fatalf("id wasn't what we expected bbb, got %s", v.ID)
} }
v = q.GetNext()
if v.ID != "aaa" { if v.ID != "aaa" {
t.Fatal("id wasn't what we expected") t.Fatalf("id wasn't what we expected aaa, got %s", v.ID)
} }
v = q.GetNext()
if v.ID != "ccc" { if v.ID != "ccc" {
t.Fatal("id wasn't what we expected") t.Fatalf("id wasn't what we expected ccc, got %s", v.ID)
} }
v = q.GetNext()
if v.ID != "ddd" { if v.ID != "ddd" {
t.Fatal("id wasn't what we expected") t.Fatalf("id wasn't what we expected ddd, got %s", v.ID)
} }
} }