SelectTraceEntry
class SelectBegin : public SelectTraceEntry {
SelectTraceEntry(count, readSet, writeSet, errorSet),
SelectTraceEntry::AddDump(out, "select begin: ");
class SelectDone : public SelectTraceEntry {
SelectTraceEntry(status == B_OK ? count : 0, readSet, writeSet,
SelectTraceEntry::AddDump(out, "select done: ");
SelectTraceEntry(int count, fd_set* readSet, fd_set* writeSet,