func emitLogRecord(lr *logRecord, sr *serveRecord, target *logplexc.Client,
isAudit bool, exit exitFn) {
// Buffer to format the complete log message in.
msgFmtBuf := bytes.Buffer{}
// Helps with formatting a series of nullable strings.
catOptionalField := func(prefix string, maybePresent *string) {
if maybePresent != nil {
if prefix != "" {
msgFmtBuf.WriteString(prefix)
msgFmtBuf.WriteString(": ")
}
msgFmtBuf.WriteString(*maybePresent)
msgFmtBuf.WriteByte('\n')
}
}
if sr.Prefix != "" {
msgFmtBuf.WriteString(sr.Prefix)
msgFmtBuf.WriteString(" ")
}
if isAudit {
// The audit endpoint may be multiplexed, so add the
// identity to help tell log records apart.
msgFmtBuf.WriteString("instance_type=shogun identity=" +
sr.I + " ")
}
catOptionalField("", lr.ErrMessage)
catOptionalField("Detail", lr.ErrDetail)
catOptionalField("Hint", lr.ErrHint)
catOptionalField("Query", lr.UserQuery)
err := target.BufferMessage(134, time.Now(),
"postgres",
"postgres."+strconv.Itoa(int(lr.Pid)),
msgFmtBuf.Bytes())
if err != nil {
exit(err)
}
}
