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