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71 lines
1.3 KiB
Go
71 lines
1.3 KiB
Go
package mongo
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import (
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"io"
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"time"
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"github.com/globalsign/mgo"
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"github.com/tal-tech/go-zero/core/logx"
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"github.com/tal-tech/go-zero/core/syncx"
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)
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const (
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defaultConcurrency = 50
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defaultTimeout = time.Second
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)
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var sessionManager = syncx.NewResourceManager()
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type concurrentSession struct {
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*mgo.Session
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limit syncx.TimeoutLimit
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}
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func (cs *concurrentSession) Close() error {
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cs.Session.Close()
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return nil
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}
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func getConcurrentSession(url string) (*concurrentSession, error) {
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val, err := sessionManager.GetResource(url, func() (io.Closer, error) {
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mgoSession, err := mgo.Dial(url)
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if err != nil {
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return nil, err
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}
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concurrentSess := &concurrentSession{
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Session: mgoSession,
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limit: syncx.NewTimeoutLimit(defaultConcurrency),
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}
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return concurrentSess, nil
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})
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if err != nil {
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return nil, err
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}
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return val.(*concurrentSession), nil
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}
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func (cs *concurrentSession) putSession(session *mgo.Session) {
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if err := cs.limit.Return(); err != nil {
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logx.Error(err)
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}
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// anyway, we need to close the session
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session.Close()
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}
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func (cs *concurrentSession) takeSession(opts ...Option) (*mgo.Session, error) {
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o := defaultOptions()
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for _, opt := range opts {
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opt(o)
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}
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if err := cs.limit.Borrow(o.timeout); err != nil {
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return nil, err
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}
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return cs.Copy(), nil
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}
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