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@ -3,7 +3,6 @@ package sqlx
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import (
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import (
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"database/sql"
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"database/sql"
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"io"
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"io"
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"sync"
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"time"
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"time"
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"github.com/zeromicro/go-zero/core/syncx"
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"github.com/zeromicro/go-zero/core/syncx"
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@ -17,43 +16,29 @@ const (
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var connManager = syncx.NewResourceManager()
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var connManager = syncx.NewResourceManager()
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type pingedDB struct {
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func getCachedSqlConn(driverName, server string) (*sql.DB, error) {
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*sql.DB
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once sync.Once
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}
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func getCachedSqlConn(driverName, server string) (*pingedDB, error) {
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val, err := connManager.GetResource(server, func() (io.Closer, error) {
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val, err := connManager.GetResource(server, func() (io.Closer, error) {
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conn, err := newDBConnection(driverName, server)
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conn, err := newDBConnection(driverName, server)
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if err != nil {
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if err != nil {
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return nil, err
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return nil, err
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}
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}
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return &pingedDB{
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return conn, nil
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DB: conn,
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}, nil
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})
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})
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if err != nil {
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if err != nil {
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return nil, err
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return nil, err
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}
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}
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return val.(*pingedDB), nil
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return val.(*sql.DB), nil
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}
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}
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func getSqlConn(driverName, server string) (*sql.DB, error) {
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func getSqlConn(driverName, server string) (*sql.DB, error) {
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pdb, err := getCachedSqlConn(driverName, server)
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conn, err := getCachedSqlConn(driverName, server)
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if err != nil {
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return nil, err
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}
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pdb.once.Do(func() {
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err = pdb.Ping()
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})
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if err != nil {
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if err != nil {
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return nil, err
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return nil, err
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}
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}
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return pdb.DB, nil
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return conn, nil
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}
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}
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func newDBConnection(driverName, datasource string) (*sql.DB, error) {
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func newDBConnection(driverName, datasource string) (*sql.DB, error) {
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@ -70,5 +55,10 @@ func newDBConnection(driverName, datasource string) (*sql.DB, error) {
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conn.SetMaxOpenConns(maxOpenConns)
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conn.SetMaxOpenConns(maxOpenConns)
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conn.SetConnMaxLifetime(maxLifetime)
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conn.SetConnMaxLifetime(maxLifetime)
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if err := conn.Ping(); err != nil {
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_ = conn.Close()
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return nil, err
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}
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return conn, nil
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return conn, nil
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}
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}
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