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// Copyright 2017 The Sqlite Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//+build go1.8
package sqlite // import "modernc.org/sqlite"
import (
"context"
"database/sql/driver"
"errors"
"unsafe"
)
// Ping implements driver.Pinger
func (c *conn) Ping(ctx context.Context) error {
c.Lock()
defer c.Unlock()
if uintptr(unsafe.Pointer(c.ppdb)) == 0 {
return errors.New("db is closed")
}
_, err := c.ExecContext(ctx, "select 1", nil)
return err
}
// BeginTx implements driver.ConnBeginTx
func (c *conn) BeginTx(ctx context.Context, opts driver.TxOptions) (driver.Tx, error) {
return c.begin(ctx, txOptions{
Isolation: int(opts.Isolation),
ReadOnly: opts.ReadOnly,
})
}
// PrepareContext implements driver.ConnPrepareContext
func (c *conn) PrepareContext(ctx context.Context, query string) (driver.Stmt, error) {
return c.prepare(ctx, query)
}
// ExecContext implements driver.ExecerContext
func (c *conn) ExecContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Result, error) {
return c.exec(ctx, query, toNamedValues2(args))
}
// QueryContext implements driver.QueryerContext
func (c *conn) QueryContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Rows, error) {
return c.query(ctx, query, toNamedValues2(args))
}
// ExecContext implements driver.StmtExecContext
func (s *stmt) ExecContext(ctx context.Context, args []driver.NamedValue) (driver.Result, error) {
return s.exec(ctx, toNamedValues2(args))
}
// QueryContext implements driver.StmtQueryContext
func (s *stmt) QueryContext(ctx context.Context, args []driver.NamedValue) (driver.Rows, error) {
return s.query(ctx, toNamedValues2(args))
}
// converts []driver.NamedValue to []namedValue
func toNamedValues2(vals []driver.NamedValue) []namedValue {
args := make([]namedValue, 0, len(vals))
for _, val := range vals {
args = append(args, namedValue(val))
}
return args
}
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