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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,34 @@ | ||
| package mssqlx | ||
|
|
||
| import ( | ||
| "database/sql" | ||
| "time" | ||
| ) | ||
|
|
||
| func retryFunc(query string, f func() (interface{}, error)) (result interface{}, err error) { | ||
| for retry := 0; retry < 50; retry++ { | ||
| if result, err = f(); err == nil { | ||
| return | ||
| } | ||
|
|
||
| switch err { | ||
| case sql.ErrConnDone: | ||
|
|
||
| case sql.ErrTxDone, sql.ErrNoRows: | ||
| return | ||
|
|
||
| default: | ||
| if isErrBadConn(err) || IsDeadlock(err) { | ||
| time.Sleep(5 * time.Millisecond) | ||
| } else { | ||
| return | ||
| } | ||
| } | ||
| } | ||
|
|
||
| if err == sql.ErrConnDone || isErrBadConn(err) { | ||
| reportError(query, err) | ||
| } | ||
|
|
||
| return | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| package mssqlx | ||
|
|
||
| import ( | ||
| "context" | ||
| "database/sql" | ||
| ) | ||
|
|
||
| type Stmt struct { | ||
| *sql.Stmt | ||
| } | ||
|
|
||
| // Exec executes a prepared statement with the given arguments and returns a Result summarizing the effect of the statement. | ||
| func (s *Stmt) Exec(args ...interface{}) (sql.Result, error) { | ||
| return s.ExecContext(context.Background(), args...) | ||
| } | ||
|
|
||
| // ExecContext executes a prepared statement with the given arguments and returns a Result summarizing the effect of the statement. | ||
| func (s *Stmt) ExecContext(ctx context.Context, args ...interface{}) (result sql.Result, err error) { | ||
| r, err := retryFunc("stmt_exec", func() (interface{}, error) { | ||
| return s.Stmt.ExecContext(ctx, args...) | ||
| }) | ||
| if err == nil { | ||
| result = r.(sql.Result) | ||
| } | ||
| return | ||
| } | ||
|
|
||
| // Query executes a prepared query statement with the given arguments and returns the query results as a *Rows. | ||
| func (s *Stmt) Query(args ...interface{}) (*sql.Rows, error) { | ||
| return s.QueryContext(context.Background(), args...) | ||
| } | ||
|
|
||
| // QueryContext executes a prepared query statement with the given arguments and returns the query results as a *Rows. | ||
| func (s *Stmt) QueryContext(ctx context.Context, args ...interface{}) (result *sql.Rows, err error) { | ||
| r, err := retryFunc("stmt_query", func() (interface{}, error) { | ||
| return s.Stmt.QueryContext(ctx, args...) | ||
| }) | ||
| if err == nil { | ||
| result = r.(*sql.Rows) | ||
| } | ||
| return | ||
| } |
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