mirror of https://github.com/v2fly/v2ray-core.git
94 lines
1.7 KiB
Go
94 lines
1.7 KiB
Go
package stats
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//go:generate errorgen
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import (
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"context"
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"sync"
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"sync/atomic"
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"v2ray.com/core/features/stats"
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)
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// Counter is an implementation of stats.Counter.
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type Counter struct {
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value int64
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}
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// Value implements stats.Counter.
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func (c *Counter) Value() int64 {
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return atomic.LoadInt64(&c.value)
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}
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// Set implements stats.Counter.
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func (c *Counter) Set(newValue int64) int64 {
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return atomic.SwapInt64(&c.value, newValue)
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}
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// Add implements stats.Counter.
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func (c *Counter) Add(delta int64) int64 {
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return atomic.AddInt64(&c.value, delta)
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}
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// Manager is an implementation of stats.Manager.
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type Manager struct {
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access sync.RWMutex
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counters map[string]*Counter
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}
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func NewManager(ctx context.Context, config *Config) (*Manager, error) {
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m := &Manager{
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counters: make(map[string]*Counter),
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}
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return m, nil
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}
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func (*Manager) Type() interface{} {
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return stats.ManagerType()
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}
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func (m *Manager) RegisterCounter(name string) (stats.Counter, error) {
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m.access.Lock()
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defer m.access.Unlock()
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if _, found := m.counters[name]; found {
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return nil, newError("Counter ", name, " already registered.")
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}
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newError("create new counter ", name).AtDebug().WriteToLog()
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c := new(Counter)
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m.counters[name] = c
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return c, nil
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}
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func (m *Manager) GetCounter(name string) stats.Counter {
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m.access.RLock()
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defer m.access.RUnlock()
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if c, found := m.counters[name]; found {
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return c
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}
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return nil
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}
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func (m *Manager) Visit(visitor func(string, stats.Counter) bool) {
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m.access.RLock()
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defer m.access.RUnlock()
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for name, c := range m.counters {
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if !visitor(name, c) {
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break
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}
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}
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}
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// Start implements common.Runnable.
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func (m *Manager) Start() error {
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return nil
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}
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// Close implement common.Closable.
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func (m *Manager) Close() error {
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return nil
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}
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