summaryrefslogtreecommitdiffstats
path: root/vendor/github.com/go-sql-driver/mysql/utils.go
diff options
context:
space:
mode:
Diffstat (limited to 'vendor/github.com/go-sql-driver/mysql/utils.go')
-rw-r--r--vendor/github.com/go-sql-driver/mysql/utils.go251
1 files changed, 148 insertions, 103 deletions
diff --git a/vendor/github.com/go-sql-driver/mysql/utils.go b/vendor/github.com/go-sql-driver/mysql/utils.go
index 84d595b6ba..cb3650bb9b 100644
--- a/vendor/github.com/go-sql-driver/mysql/utils.go
+++ b/vendor/github.com/go-sql-driver/mysql/utils.go
@@ -10,10 +10,13 @@ package mysql
import (
"crypto/tls"
+ "database/sql"
"database/sql/driver"
"encoding/binary"
+ "errors"
"fmt"
"io"
+ "strconv"
"strings"
"sync"
"sync/atomic"
@@ -79,7 +82,7 @@ func DeregisterTLSConfig(key string) {
func getTLSConfigClone(key string) (config *tls.Config) {
tlsConfigLock.RLock()
if v, ok := tlsConfigRegistry[key]; ok {
- config = cloneTLSConfig(v)
+ config = v.Clone()
}
tlsConfigLock.RUnlock()
return
@@ -227,141 +230,156 @@ var zeroDateTime = []byte("0000-00-00 00:00:00.000000")
const digits01 = "0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789"
const digits10 = "0000000000111111111122222222223333333333444444444455555555556666666666777777777788888888889999999999"
-func formatBinaryDateTime(src []byte, length uint8, justTime bool) (driver.Value, error) {
- // length expects the deterministic length of the zero value,
- // negative time and 100+ hours are automatically added if needed
- if len(src) == 0 {
- if justTime {
- return zeroDateTime[11 : 11+length], nil
- }
- return zeroDateTime[:length], nil
+func appendMicrosecs(dst, src []byte, decimals int) []byte {
+ if decimals <= 0 {
+ return dst
}
- var dst []byte // return value
- var pt, p1, p2, p3 byte // current digit pair
- var zOffs byte // offset of value in zeroDateTime
- if justTime {
- switch length {
- case
- 8, // time (can be up to 10 when negative and 100+ hours)
- 10, 11, 12, 13, 14, 15: // time with fractional seconds
- default:
- return nil, fmt.Errorf("illegal TIME length %d", length)
- }
- switch len(src) {
- case 8, 12:
- default:
- return nil, fmt.Errorf("invalid TIME packet length %d", len(src))
- }
- // +2 to enable negative time and 100+ hours
- dst = make([]byte, 0, length+2)
- if src[0] == 1 {
- dst = append(dst, '-')
- }
- if src[1] != 0 {
- hour := uint16(src[1])*24 + uint16(src[5])
- pt = byte(hour / 100)
- p1 = byte(hour - 100*uint16(pt))
- dst = append(dst, digits01[pt])
- } else {
- p1 = src[5]
- }
- zOffs = 11
- src = src[6:]
- } else {
- switch length {
- case 10, 19, 21, 22, 23, 24, 25, 26:
- default:
- t := "DATE"
- if length > 10 {
- t += "TIME"
- }
- return nil, fmt.Errorf("illegal %s length %d", t, length)
- }
- switch len(src) {
- case 4, 7, 11:
- default:
- t := "DATE"
- if length > 10 {
- t += "TIME"
- }
- return nil, fmt.Errorf("illegal %s packet length %d", t, len(src))
- }
- dst = make([]byte, 0, length)
- // start with the date
- year := binary.LittleEndian.Uint16(src[:2])
- pt = byte(year / 100)
- p1 = byte(year - 100*uint16(pt))
- p2, p3 = src[2], src[3]
- dst = append(dst,
- digits10[pt], digits01[pt],
- digits10[p1], digits01[p1], '-',
- digits10[p2], digits01[p2], '-',
- digits10[p3], digits01[p3],
- )
- if length == 10 {
- return dst, nil
- }
- if len(src) == 4 {
- return append(dst, zeroDateTime[10:length]...), nil
- }
- dst = append(dst, ' ')
- p1 = src[4] // hour
- src = src[5:]
- }
- // p1 is 2-digit hour, src is after hour
- p2, p3 = src[0], src[1]
- dst = append(dst,
- digits10[p1], digits01[p1], ':',
- digits10[p2], digits01[p2], ':',
- digits10[p3], digits01[p3],
- )
- if length <= byte(len(dst)) {
- return dst, nil
- }
- src = src[2:]
if len(src) == 0 {
- return append(dst, zeroDateTime[19:zOffs+length]...), nil
+ return append(dst, ".000000"[:decimals+1]...)
}
+
microsecs := binary.LittleEndian.Uint32(src[:4])
- p1 = byte(microsecs / 10000)
+ p1 := byte(microsecs / 10000)
microsecs -= 10000 * uint32(p1)
- p2 = byte(microsecs / 100)
+ p2 := byte(microsecs / 100)
microsecs -= 100 * uint32(p2)
- p3 = byte(microsecs)
- switch decimals := zOffs + length - 20; decimals {
+ p3 := byte(microsecs)
+
+ switch decimals {
default:
return append(dst, '.',
digits10[p1], digits01[p1],
digits10[p2], digits01[p2],
digits10[p3], digits01[p3],
- ), nil
+ )
case 1:
return append(dst, '.',
digits10[p1],
- ), nil
+ )
case 2:
return append(dst, '.',
digits10[p1], digits01[p1],
- ), nil
+ )
case 3:
return append(dst, '.',
digits10[p1], digits01[p1],
digits10[p2],
- ), nil
+ )
case 4:
return append(dst, '.',
digits10[p1], digits01[p1],
digits10[p2], digits01[p2],
- ), nil
+ )
case 5:
return append(dst, '.',
digits10[p1], digits01[p1],
digits10[p2], digits01[p2],
digits10[p3],
- ), nil
+ )
}
}
+func formatBinaryDateTime(src []byte, length uint8) (driver.Value, error) {
+ // length expects the deterministic length of the zero value,
+ // negative time and 100+ hours are automatically added if needed
+ if len(src) == 0 {
+ return zeroDateTime[:length], nil
+ }
+ var dst []byte // return value
+ var p1, p2, p3 byte // current digit pair
+
+ switch length {
+ case 10, 19, 21, 22, 23, 24, 25, 26:
+ default:
+ t := "DATE"
+ if length > 10 {
+ t += "TIME"
+ }
+ return nil, fmt.Errorf("illegal %s length %d", t, length)
+ }
+ switch len(src) {
+ case 4, 7, 11:
+ default:
+ t := "DATE"
+ if length > 10 {
+ t += "TIME"
+ }
+ return nil, fmt.Errorf("illegal %s packet length %d", t, len(src))
+ }
+ dst = make([]byte, 0, length)
+ // start with the date
+ year := binary.LittleEndian.Uint16(src[:2])
+ pt := year / 100
+ p1 = byte(year - 100*uint16(pt))
+ p2, p3 = src[2], src[3]
+ dst = append(dst,
+ digits10[pt], digits01[pt],
+ digits10[p1], digits01[p1], '-',
+ digits10[p2], digits01[p2], '-',
+ digits10[p3], digits01[p3],
+ )
+ if length == 10 {
+ return dst, nil
+ }
+ if len(src) == 4 {
+ return append(dst, zeroDateTime[10:length]...), nil
+ }
+ dst = append(dst, ' ')
+ p1 = src[4] // hour
+ src = src[5:]
+
+ // p1 is 2-digit hour, src is after hour
+ p2, p3 = src[0], src[1]
+ dst = append(dst,
+ digits10[p1], digits01[p1], ':',
+ digits10[p2], digits01[p2], ':',
+ digits10[p3], digits01[p3],
+ )
+ return appendMicrosecs(dst, src[2:], int(length)-20), nil
+}
+
+func formatBinaryTime(src []byte, length uint8) (driver.Value, error) {
+ // length expects the deterministic length of the zero value,
+ // negative time and 100+ hours are automatically added if needed
+ if len(src) == 0 {
+ return zeroDateTime[11 : 11+length], nil
+ }
+ var dst []byte // return value
+
+ switch length {
+ case
+ 8, // time (can be up to 10 when negative and 100+ hours)
+ 10, 11, 12, 13, 14, 15: // time with fractional seconds
+ default:
+ return nil, fmt.Errorf("illegal TIME length %d", length)
+ }
+ switch len(src) {
+ case 8, 12:
+ default:
+ return nil, fmt.Errorf("invalid TIME packet length %d", len(src))
+ }
+ // +2 to enable negative time and 100+ hours
+ dst = make([]byte, 0, length+2)
+ if src[0] == 1 {
+ dst = append(dst, '-')
+ }
+ days := binary.LittleEndian.Uint32(src[1:5])
+ hours := int64(days)*24 + int64(src[5])
+
+ if hours >= 100 {
+ dst = strconv.AppendInt(dst, hours, 10)
+ } else {
+ dst = append(dst, digits10[hours], digits01[hours])
+ }
+
+ min, sec := src[6], src[7]
+ dst = append(dst, ':',
+ digits10[min], digits01[min], ':',
+ digits10[sec], digits01[sec],
+ )
+ return appendMicrosecs(dst, src[8:], int(length)-9), nil
+}
+
/******************************************************************************
* Convert from and to bytes *
******************************************************************************/
@@ -708,3 +726,30 @@ func (ae *atomicError) Value() error {
}
return nil
}
+
+func namedValueToValue(named []driver.NamedValue) ([]driver.Value, error) {
+ dargs := make([]driver.Value, len(named))
+ for n, param := range named {
+ if len(param.Name) > 0 {
+ // TODO: support the use of Named Parameters #561
+ return nil, errors.New("mysql: driver does not support the use of Named Parameters")
+ }
+ dargs[n] = param.Value
+ }
+ return dargs, nil
+}
+
+func mapIsolationLevel(level driver.IsolationLevel) (string, error) {
+ switch sql.IsolationLevel(level) {
+ case sql.LevelRepeatableRead:
+ return "REPEATABLE READ", nil
+ case sql.LevelReadCommitted:
+ return "READ COMMITTED", nil
+ case sql.LevelReadUncommitted:
+ return "READ UNCOMMITTED", nil
+ case sql.LevelSerializable:
+ return "SERIALIZABLE", nil
+ default:
+ return "", fmt.Errorf("mysql: unsupported isolation level: %v", level)
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-30 16:20:24 +0000