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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2015 Red Hat <contact@redhat.com>
* Copyright (C) 2015 SUSE LINUX GmbH
*
* This is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software
* Foundation. See file COPYING.
*/
#ifndef MON_OPREQUEST_H_
#define MON_OPREQUEST_H_
#include <iosfwd>
#include <stdint.h>
#include "common/TrackedOp.h"
#include "mon/Session.h"
#include "msg/Message.h"
struct MonOpRequest : public TrackedOp {
friend class OpTracker;
void mark_dispatch() {
mark_event("monitor_dispatch");
}
void mark_wait_for_quorum() {
mark_event("wait_for_quorum");
}
void mark_zap() {
mark_event("monitor_zap");
}
void mark_forwarded() {
mark_event("forwarded");
forwarded_to_leader = true;
}
void mark_svc_event(const string &service, const string &event) {
string s = service;
s.append(":").append(event);
mark_event(s);
}
void mark_logmon_event(const string &event) {
mark_svc_event("logm", event);
}
void mark_osdmon_event(const string &event) {
mark_svc_event("osdmap", event);
}
void mark_pgmon_event(const string &event) {
mark_svc_event("pgmap", event);
}
void mark_mdsmon_event(const string &event) {
mark_svc_event("mdsmap", event);
}
void mark_authmon_event(const string &event) {
mark_svc_event("auth", event);
}
void mark_paxos_event(const string &event) {
mark_svc_event("paxos", event);
}
enum op_type_t {
OP_TYPE_NONE = 0, ///< no type defined (default)
OP_TYPE_SERVICE, ///< belongs to a Paxos Service or similar
OP_TYPE_MONITOR, ///< belongs to the Monitor class
OP_TYPE_ELECTION, ///< belongs to the Elector class
OP_TYPE_PAXOS, ///< refers to Paxos messages
OP_TYPE_COMMAND, ///< is a command
};
MonOpRequest(const MonOpRequest &other) = delete;
MonOpRequest & operator = (const MonOpRequest &other) = delete;
private:
Message *request;
utime_t dequeued_time;
RefCountedPtr session;
ConnectionRef con;
bool forwarded_to_leader;
op_type_t op_type;
MonOpRequest(Message *req, OpTracker *tracker) :
TrackedOp(tracker,
req->get_recv_stamp().is_zero() ?
ceph_clock_now() : req->get_recv_stamp()),
request(req),
con(NULL),
forwarded_to_leader(false),
op_type(OP_TYPE_NONE)
{
if (req) {
con = req->get_connection();
if (con) {
session = con->get_priv();
}
}
}
void _dump(Formatter *f) const override {
{
f->open_array_section("events");
std::lock_guard l(lock);
for (auto& i : events) {
f->dump_object("event", i);
}
f->close_section();
f->open_object_section("info");
f->dump_int("seq", seq);
f->dump_bool("src_is_mon", is_src_mon());
f->dump_stream("source") << request->get_source_inst();
f->dump_bool("forwarded_to_leader", forwarded_to_leader);
f->close_section();
}
}
protected:
void _dump_op_descriptor_unlocked(ostream& stream) const override {
get_req()->print(stream);
}
public:
~MonOpRequest() override {
request->put();
}
MonSession *get_session() const {
return static_cast<MonSession*>(session.get());
}
template<class T>
T *get_req() const { return static_cast<T*>(request); }
Message *get_req() const { return get_req<Message>(); }
int get_req_type() const {
if (!request)
return 0;
return request->get_type();
}
ConnectionRef get_connection() { return con; }
void set_session(MonSession *s) {
session.reset(s);
}
bool is_src_mon() const {
return (con && con->get_peer_type() & CEPH_ENTITY_TYPE_MON);
}
typedef boost::intrusive_ptr<MonOpRequest> Ref;
void set_op_type(op_type_t t) {
op_type = t;
}
void set_type_service() {
set_op_type(OP_TYPE_SERVICE);
}
void set_type_monitor() {
set_op_type(OP_TYPE_MONITOR);
}
void set_type_paxos() {
set_op_type(OP_TYPE_PAXOS);
}
void set_type_election() {
set_op_type(OP_TYPE_ELECTION);
}
void set_type_command() {
set_op_type(OP_TYPE_COMMAND);
}
op_type_t get_op_type() {
return op_type;
}
bool is_type_service() {
return (get_op_type() == OP_TYPE_SERVICE);
}
bool is_type_monitor() {
return (get_op_type() == OP_TYPE_MONITOR);
}
bool is_type_paxos() {
return (get_op_type() == OP_TYPE_PAXOS);
}
bool is_type_election() {
return (get_op_type() == OP_TYPE_ELECTION);
}
bool is_type_command() {
return (get_op_type() == OP_TYPE_COMMAND);
}
};
typedef MonOpRequest::Ref MonOpRequestRef;
struct C_MonOp : public Context
{
MonOpRequestRef op;
explicit C_MonOp(MonOpRequestRef o) :
op(o) { }
void finish(int r) override {
if (op && r == -ECANCELED) {
op->mark_event("callback canceled");
} else if (op && r == -EAGAIN) {
op->mark_event("callback retry");
} else if (op && r == 0) {
op->mark_event("callback finished");
}
_finish(r);
}
void mark_op_event(const string &event) {
if (op)
op->mark_event(event);
}
virtual void _finish(int r) = 0;
};
#endif /* MON_OPREQUEST_H_ */
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