+++ /dev/null
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
-// vim: ts=8 sw=2 smarttab
-
-#include "Types.h"
-#include "include/assert.h"
-#include "include/stringify.h"
-#include "common/Formatter.h"
-
-namespace rbd {
-namespace mirror {
-namespace leader_watcher {
-
-namespace {
-
-class EncodePayloadVisitor : public boost::static_visitor<void> {
-public:
- explicit EncodePayloadVisitor(bufferlist &bl) : m_bl(bl) {}
-
- template <typename Payload>
- inline void operator()(const Payload &payload) const {
- ::encode(static_cast<uint32_t>(Payload::NOTIFY_OP), m_bl);
- payload.encode(m_bl);
- }
-
-private:
- bufferlist &m_bl;
-};
-
-class DecodePayloadVisitor : public boost::static_visitor<void> {
-public:
- DecodePayloadVisitor(__u8 version, bufferlist::iterator &iter)
- : m_version(version), m_iter(iter) {}
-
- template <typename Payload>
- inline void operator()(Payload &payload) const {
- payload.decode(m_version, m_iter);
- }
-
-private:
- __u8 m_version;
- bufferlist::iterator &m_iter;
-};
-
-class DumpPayloadVisitor : public boost::static_visitor<void> {
-public:
- explicit DumpPayloadVisitor(Formatter *formatter) : m_formatter(formatter) {}
-
- template <typename Payload>
- inline void operator()(const Payload &payload) const {
- NotifyOp notify_op = Payload::NOTIFY_OP;
- m_formatter->dump_string("notify_op", stringify(notify_op));
- payload.dump(m_formatter);
- }
-
-private:
- ceph::Formatter *m_formatter;
-};
-
-} // anonymous namespace
-
-void HeartbeatPayload::encode(bufferlist &bl) const {
-}
-
-void HeartbeatPayload::decode(__u8 version, bufferlist::iterator &iter) {
-}
-
-void HeartbeatPayload::dump(Formatter *f) const {
-}
-
-void LockAcquiredPayload::encode(bufferlist &bl) const {
-}
-
-void LockAcquiredPayload::decode(__u8 version, bufferlist::iterator &iter) {
-}
-
-void LockAcquiredPayload::dump(Formatter *f) const {
-}
-
-void LockReleasedPayload::encode(bufferlist &bl) const {
-}
-
-void LockReleasedPayload::decode(__u8 version, bufferlist::iterator &iter) {
-}
-
-void LockReleasedPayload::dump(Formatter *f) const {
-}
-
-void UnknownPayload::encode(bufferlist &bl) const {
- assert(false);
-}
-
-void UnknownPayload::decode(__u8 version, bufferlist::iterator &iter) {
-}
-
-void UnknownPayload::dump(Formatter *f) const {
-}
-
-void NotifyMessage::encode(bufferlist& bl) const {
- ENCODE_START(1, 1, bl);
- boost::apply_visitor(EncodePayloadVisitor(bl), payload);
- ENCODE_FINISH(bl);
-}
-
-void NotifyMessage::decode(bufferlist::iterator& iter) {
- DECODE_START(1, iter);
-
- uint32_t notify_op;
- ::decode(notify_op, iter);
-
- // select the correct payload variant based upon the encoded op
- switch (notify_op) {
- case NOTIFY_OP_HEARTBEAT:
- payload = HeartbeatPayload();
- break;
- case NOTIFY_OP_LOCK_ACQUIRED:
- payload = LockAcquiredPayload();
- break;
- case NOTIFY_OP_LOCK_RELEASED:
- payload = LockReleasedPayload();
- break;
- default:
- payload = UnknownPayload();
- break;
- }
-
- apply_visitor(DecodePayloadVisitor(struct_v, iter), payload);
- DECODE_FINISH(iter);
-}
-
-void NotifyMessage::dump(Formatter *f) const {
- apply_visitor(DumpPayloadVisitor(f), payload);
-}
-
-void NotifyMessage::generate_test_instances(std::list<NotifyMessage *> &o) {
- o.push_back(new NotifyMessage(HeartbeatPayload()));
- o.push_back(new NotifyMessage(LockAcquiredPayload()));
- o.push_back(new NotifyMessage(LockReleasedPayload()));
-}
-
-std::ostream &operator<<(std::ostream &out, const NotifyOp &op) {
- switch (op) {
- case NOTIFY_OP_HEARTBEAT:
- out << "Heartbeat";
- break;
- case NOTIFY_OP_LOCK_ACQUIRED:
- out << "LockAcquired";
- break;
- case NOTIFY_OP_LOCK_RELEASED:
- out << "LockReleased";
- break;
- default:
- out << "Unknown (" << static_cast<uint32_t>(op) << ")";
- break;
- }
- return out;
-}
-
-} // namespace leader_watcher
-} // namespace mirror
-} // namespace librbd