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https://github.com/ceph/ceph
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f45e480e8e
This is a portion of Part 1 of the namespace project: using ADL properly in encode and decode so we can use namespaces easily in Ceph. Signed-off-by: Adam C. Emerson <aemerson@redhat.com>
72 lines
2.1 KiB
C++
72 lines
2.1 KiB
C++
#ifndef CEPH_PAXOSSERVICEMESSAGE_H
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#define CEPH_PAXOSSERVICEMESSAGE_H
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#include "msg/Message.h"
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#include "mon/Session.h"
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class PaxosServiceMessage : public Message {
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public:
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version_t version;
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__s16 deprecated_session_mon;
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uint64_t deprecated_session_mon_tid;
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// track which epoch the leader received a forwarded request in, so we can
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// discard forwarded requests appropriately on election boundaries.
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epoch_t rx_election_epoch;
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PaxosServiceMessage()
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: Message(MSG_PAXOS),
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version(0), deprecated_session_mon(-1), deprecated_session_mon_tid(0),
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rx_election_epoch(0) { }
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PaxosServiceMessage(int type, version_t v, int enc_version=1, int compat_enc_version=0)
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: Message(type, enc_version, compat_enc_version),
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version(v), deprecated_session_mon(-1), deprecated_session_mon_tid(0),
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rx_election_epoch(0) { }
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protected:
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~PaxosServiceMessage() override {}
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public:
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void paxos_encode() {
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using ceph::encode;
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encode(version, payload);
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encode(deprecated_session_mon, payload);
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encode(deprecated_session_mon_tid, payload);
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}
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void paxos_decode( bufferlist::iterator& p ) {
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decode(version, p);
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decode(deprecated_session_mon, p);
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decode(deprecated_session_mon_tid, p);
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}
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void encode_payload(uint64_t features) override {
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ceph_abort();
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paxos_encode();
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}
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void decode_payload() override {
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ceph_abort();
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bufferlist::iterator p = payload.begin();
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paxos_decode(p);
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}
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/**
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* These messages are only used by the monitors and clients,
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* and the client doesn't care, so we're creating a monitor-specific
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* function here. Note that this function explicitly exists to bypass
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* the normal ref-counting, so don't expect the returned pointer to be
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* very long-lived -- it will still only last as long as the Session would
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* normally.
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*/
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MonSession *get_session() {
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MonSession *session = (MonSession *)get_connection()->get_priv();
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if (session)
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session->put();
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return session;
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}
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const char *get_type_name() const override { return "PaxosServiceMessage"; }
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};
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#endif
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