/
routes.go
129 lines (114 loc) · 2.08 KB
/
routes.go
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package sca
import (
"sync"
)
type Rms struct {
Name string
r sync.Map
m sync.Map
}
func (r *Rms) AddRoute(target, via string) {
r.r.Store(target, via)
}
func (r *Rms) GetRoute(target string) (via string) {
if v, ok := r.r.Load(target); ok {
if via, ok = v.(string); ok {
return
}
}
return
}
func (r *Rms) Targets(via string) (names []string) {
f := func(k, v interface{}) bool {
if name, ok := k.(string); ok {
if value, ok := v.(string); ok {
if value == via {
names = append(names, name)
}
}
}
return true
}
r.r.Range(f)
return
}
func (r *Rms) DelRoute(keys ...string) {
for i := range keys {
r.r.Delete(keys[i])
}
}
func (r *Rms) Routes() (routes map[string]string) {
routes = map[string]string{}
f := func(k, v interface{}) bool {
if key, ok := k.(string); ok {
if value, ok := v.(string); ok {
routes[key] = value
}
}
return true
}
r.r.Range(f)
return
}
func (r *Rms) AddMember(name string, node *Node) {
r.m.Store(name, node)
}
func (r *Rms) DelMember(name string) {
r.m.Delete(name)
}
func (r *Rms) GetMember(name string) (node *Node, ok bool) {
v, ok := r.m.Load(name)
if ok {
node, ok = v.(*Node)
}
return
}
func (r *Rms) Members() (names Set) {
names = NewSet()
r.m.Range(func(k, v interface{}) bool {
if name, ok := k.(string); ok {
names.Add(name)
}
return true
})
return
}
func (r *Rms) HasMember() (ok bool) {
r.m.Range(func(k, v interface{}) bool {
ok = true
return false
})
return
}
func (r *Rms) Dispatch(targets Targets) (local bool, ups Targets, vias map[string]Targets) {
vias = map[string]Targets{}
if targets.Local() {
local = true
return
}
if targets.Down() {
local = true
for member := range r.Members() {
vias[member] = targets
}
return
}
for _, target := range targets {
via := r.GetRoute(target)
if via == "" {
if target == r.Name {
local = true
} else {
ups = append(ups, target)
}
} else {
if ss, ok := vias[via]; ok {
ss = append(ss, target)
vias[via] = ss
} else {
vias[via] = []string{target}
}
}
}
return
}