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utils.go
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utils.go
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package pg
import (
"database/sql/driver"
"fmt"
"os"
"strconv"
"time"
"github.com/smartcontractkit/chainlink/core/config/parse"
)
func init() {
s := os.Getenv("DATABASE_DEFAULT_QUERY_TIMEOUT")
if s != "" {
t, err := parse.Duration(s)
if err != nil {
panic(fmt.Sprintf("DATABASE_DEFAULT_QUERY_TIMEOUT value of %s is not a valid duration", s))
}
DefaultQueryTimeout = t.(time.Duration)
}
s = os.Getenv("DATABASE_DEFAULT_LOCK_TIMEOUT")
if s != "" {
t, err := parse.Duration(s)
if err != nil {
panic(fmt.Sprintf("DATABASE_DEFAULT_LOCK_TIMEOUT value of %s is not a valid duration", s))
}
DefaultLockTimeout = t.(time.Duration)
}
s = os.Getenv("DATABASE_DEFAULT_IDLE_IN_TX_SESSION_TIMEOUT")
if s != "" {
t, err := parse.Duration(s)
if err != nil {
panic(fmt.Sprintf("DATABASE_DEFAULT_IDLE_IN_TX_SESSION_TIMEOUT value of %s is not a valid duration", s))
}
DefaultIdleInTxSessionTimeout = t.(time.Duration)
}
}
// unexport and make constant after legacy config is removed
// https://app.shortcut.com/chainlinklabs/story/33622/remove-legacy-config
var (
// DefaultQueryTimeout is a reasonable upper bound for how long a SQL query should take
DefaultQueryTimeout = 10 * time.Second
// longQueryTimeout is a bigger upper bound for how long a SQL query should take
longQueryTimeout = 1 * time.Minute
// DefaultLockTimeout controls the max time we will wait for any kind of database lock.
// It's good to set this to _something_ because waiting for locks forever is really bad.
DefaultLockTimeout = 15 * time.Second
// DefaultIdleInTxSessionTimeout controls the max time we leave a transaction open and idle.
// It's good to set this to _something_ because leaving transactions open forever is really bad.
DefaultIdleInTxSessionTimeout = 1 * time.Hour
)
var _ driver.Valuer = Limit(-1)
// Limit is a helper driver.Valuer for LIMIT queries which uses nil/NULL for negative values.
type Limit int
func (l Limit) String() string {
if l < 0 {
return "NULL"
}
return strconv.Itoa(int(l))
}
func (l Limit) Value() (driver.Value, error) {
if l < 0 {
return nil, nil
}
return l, nil
}