--- /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 instance_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 PayloadBase::encode(bufferlist &bl) const {
+ ::encode(request_id, bl);
+}
+
+void PayloadBase::decode(__u8 version, bufferlist::iterator &iter) {
+ ::decode(request_id, iter);
+}
+
+void PayloadBase::dump(Formatter *f) const {
+ f->dump_unsigned("request_id", request_id);
+}
+
+void ImagePayloadBase::encode(bufferlist &bl) const {
+ PayloadBase::encode(bl);
+ ::encode(global_image_id, bl);
+}
+
+void ImagePayloadBase::decode(__u8 version, bufferlist::iterator &iter) {
+ PayloadBase::decode(version, iter);
+ ::decode(global_image_id, iter);
+}
+
+void ImagePayloadBase::dump(Formatter *f) const {
+ PayloadBase::dump(f);
+ f->dump_string("global_image_id", global_image_id);
+}
+
+void PeerImageRemovedPayload::encode(bufferlist &bl) const {
+ PayloadBase::encode(bl);
+ ::encode(global_image_id, bl);
+ ::encode(peer_mirror_uuid, bl);
+}
+
+void PeerImageRemovedPayload::decode(__u8 version, bufferlist::iterator &iter) {
+ PayloadBase::decode(version, iter);
+ ::decode(global_image_id, iter);
+ ::decode(peer_mirror_uuid, iter);
+}
+
+void PeerImageRemovedPayload::dump(Formatter *f) const {
+ PayloadBase::dump(f);
+ f->dump_string("global_image_id", global_image_id);
+ f->dump_string("peer_mirror_uuid", peer_mirror_uuid);
+}
+
+void SyncPayloadBase::encode(bufferlist &bl) const {
+ PayloadBase::encode(bl);
+ ::encode(sync_id, bl);
+}
+
+void SyncPayloadBase::decode(__u8 version, bufferlist::iterator &iter) {
+ PayloadBase::decode(version, iter);
+ ::decode(sync_id, iter);
+}
+
+void SyncPayloadBase::dump(Formatter *f) const {
+ PayloadBase::dump(f);
+ f->dump_string("sync_id", sync_id);
+}
+
+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(2, 2, bl);
+ boost::apply_visitor(EncodePayloadVisitor(bl), payload);
+ ENCODE_FINISH(bl);
+}
+
+void NotifyMessage::decode(bufferlist::iterator& iter) {
+ DECODE_START(2, 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_IMAGE_ACQUIRE:
+ payload = ImageAcquirePayload();
+ break;
+ case NOTIFY_OP_IMAGE_RELEASE:
+ payload = ImageReleasePayload();
+ break;
+ case NOTIFY_OP_PEER_IMAGE_REMOVED:
+ payload = PeerImageRemovedPayload();
+ break;
+ case NOTIFY_OP_SYNC_REQUEST:
+ payload = SyncRequestPayload();
+ break;
+ case NOTIFY_OP_SYNC_START:
+ payload = SyncStartPayload();
+ 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(ImageAcquirePayload()));
+ o.push_back(new NotifyMessage(ImageAcquirePayload(1, "gid")));
+
+ o.push_back(new NotifyMessage(ImageReleasePayload()));
+ o.push_back(new NotifyMessage(ImageReleasePayload(1, "gid")));
+
+ o.push_back(new NotifyMessage(PeerImageRemovedPayload()));
+ o.push_back(new NotifyMessage(PeerImageRemovedPayload(1, "gid", "uuid")));
+
+ o.push_back(new NotifyMessage(SyncRequestPayload()));
+ o.push_back(new NotifyMessage(SyncRequestPayload(1, "sync_id")));
+
+ o.push_back(new NotifyMessage(SyncStartPayload()));
+ o.push_back(new NotifyMessage(SyncStartPayload(1, "sync_id")));
+}
+
+std::ostream &operator<<(std::ostream &out, const NotifyOp &op) {
+ switch (op) {
+ case NOTIFY_OP_IMAGE_ACQUIRE:
+ out << "ImageAcquire";
+ break;
+ case NOTIFY_OP_IMAGE_RELEASE:
+ out << "ImageRelease";
+ break;
+ case NOTIFY_OP_PEER_IMAGE_REMOVED:
+ out << "PeerImageRemoved";
+ break;
+ case NOTIFY_OP_SYNC_REQUEST:
+ out << "SyncRequest";
+ break;
+ case NOTIFY_OP_SYNC_START:
+ out << "SyncStart";
+ break;
+ default:
+ out << "Unknown (" << static_cast<uint32_t>(op) << ")";
+ break;
+ }
+ return out;
+}
+
+void NotifyAckPayload::encode(bufferlist &bl) const {
+ ::encode(instance_id, bl);
+ ::encode(request_id, bl);
+ ::encode(ret_val, bl);
+}
+
+void NotifyAckPayload::decode(bufferlist::iterator &iter) {
+ ::decode(instance_id, iter);
+ ::decode(request_id, iter);
+ ::decode(ret_val, iter);
+}
+
+void NotifyAckPayload::dump(Formatter *f) const {
+ f->dump_string("instance_id", instance_id);
+ f->dump_unsigned("request_id", request_id);
+ f->dump_int("request_id", ret_val);
+}
+
+} // namespace instance_watcher
+} // namespace mirror
+} // namespace rbd
Code Review / stor4nfv.git / blobdiff