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// +build !trace
package sqlite3
import "errors"
// Trace... constants identify the possible events causing callback invocation.
// Values are same as the corresponding SQLite Trace Event Codes.
const (
TraceStmt = uint32(0x01)
TraceProfile = uint32(0x02)
TraceRow = uint32(0x04)
TraceClose = uint32(0x08)
)
type TraceInfo struct {
// Pack together the shorter fields, to keep the struct smaller.
// On a 64-bit machine there would be padding
// between EventCode and ConnHandle; having AutoCommit here is "free":
EventCode uint32
AutoCommit bool
ConnHandle uintptr
// Usually filled, unless EventCode = TraceClose = SQLITE_TRACE_CLOSE:
// identifier for a prepared statement:
StmtHandle uintptr
// Two strings filled when EventCode = TraceStmt = SQLITE_TRACE_STMT:
// (1) either the unexpanded SQL text of the prepared statement, or
// an SQL comment that indicates the invocation of a trigger;
// (2) expanded SQL, if requested and if (1) is not an SQL comment.
StmtOrTrigger string
ExpandedSQL string // only if requested (TraceConfig.WantExpandedSQL = true)
// filled when EventCode = TraceProfile = SQLITE_TRACE_PROFILE:
// estimated number of nanoseconds that the prepared statement took to run:
RunTimeNanosec int64
}
type TraceUserCallback func(TraceInfo) int
type TraceConfig struct {
Callback TraceUserCallback
EventMask uint
WantExpandedSQL bool
}
// RegisterAggregator register the aggregator.
func (c *SQLiteConn) RegisterAggregator(name string, impl interface{}, pure bool) error {
return errors.New("This feature is not implemented")
}
func (c *SQLiteConn) SetTrace(requested *TraceConfig) error {
return errors.New("This feature is not implemented")
}
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