94 lines
1.5 KiB
Go
94 lines
1.5 KiB
Go
package client
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import (
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"sync"
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"sync/atomic"
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"time"
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)
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type requestState struct {
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id uint64
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method string
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params []interface{}
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result interface{}
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clientError *Error
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doneChan chan *requestState
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canceled atomic.Value
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}
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func (rs *requestState) done() {
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select {
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case rs.doneChan <- rs:
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default:
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}
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}
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func (rs *requestState) cancel() {
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rs.canceled.Store(true)
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}
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func (rs *requestState) isCanceled() bool {
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v := rs.canceled.Load()
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if nil == v {
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return false
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}
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vv := v.(bool)
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return vv
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}
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func (rs *requestState) setError(err error) {
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rs.clientError = newError(rs.method, rs.params, err)
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}
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var requestStatePool sync.Pool
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func retainRequestState() *requestState {
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v := requestStatePool.Get()
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if v == nil {
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return &requestState{}
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}
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return v.(*requestState)
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}
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func releaseRequestState(rs *requestState) {
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rs.id = 0
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rs.method = ""
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rs.params = nil
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rs.result = nil
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rs.clientError = nil
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rs.doneChan = nil
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rs.canceled.Store(false)
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requestStatePool.Put(rs)
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}
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var timerPool sync.Pool
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func retainTimer(timeout time.Duration) *time.Timer {
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tv := timerPool.Get()
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if tv == nil {
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return time.NewTimer(timeout)
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}
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t := tv.(*time.Timer)
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if t.Reset(timeout) {
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panic("Client: Active timer trapped into retainTimer()")
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}
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return t
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}
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func releaseTimer(t *time.Timer) {
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if !t.Stop() {
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// Collect possibly added time from the channel
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// if timer has been stopped and nobody collected its' value.
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select {
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case <-t.C:
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default:
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}
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}
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timerPool.Put(t)
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}
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