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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) 2014 Adam Crume <adamcrume@gmail.com>
*
* 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 _INCLUDED_RBD_REPLAY_IOS_HPP
#define _INCLUDED_RBD_REPLAY_IOS_HPP
// This code assumes that IO IDs and timestamps are related monotonically.
// In other words, (a.id < b.id) == (a.timestamp < b.timestamp) for all IOs a and b.
#include "include/buffer_fwd.h"
#include <boost/enable_shared_from_this.hpp>
#include <boost/shared_ptr.hpp>
#include <iostream>
#include <map>
#include <set>
#include <vector>
#include "actions.hpp"
namespace rbd_replay {
class IO;
typedef std::set<boost::shared_ptr<IO> > io_set_t;
typedef std::map<action_id_t, boost::shared_ptr<IO> > io_map_t;
/**
Used by rbd-replay-prep for processing the raw trace.
Corresponds to the Action class, except that Actions are executed by rbd-replay,
and IOs are used by rbd-replay-prep for processing the raw trace.
*/
class IO : public boost::enable_shared_from_this<IO> {
public:
typedef boost::shared_ptr<IO> ptr;
typedef std::vector<ptr> ptrs;
/**
@param ionum ID of this %IO
@param start_time time the %IO started, in nanoseconds
@param thread_id ID of the thread that issued the %IO
*/
IO(action_id_t ionum,
uint64_t start_time,
thread_id_t thread_id,
const io_set_t& deps)
: m_ionum(ionum),
m_start_time(start_time),
m_dependencies(deps),
m_thread_id(thread_id),
m_completed(false) {
}
virtual ~IO() {
}
uint64_t start_time() const {
return m_start_time;
}
io_set_t& dependencies() {
return m_dependencies;
}
const io_set_t& dependencies() const {
return m_dependencies;
}
virtual void encode(bufferlist &bl) const = 0;
void set_ionum(action_id_t ionum) {
m_ionum = ionum;
}
action_id_t ionum() const {
return m_ionum;
}
thread_id_t thread_id() const {
return m_thread_id;
}
virtual void write_debug(std::ostream& out) const = 0;
protected:
void write_debug_base(std::ostream& out, const std::string &iotype) const;
private:
action_id_t m_ionum;
uint64_t m_start_time;
io_set_t m_dependencies;
thread_id_t m_thread_id;
bool m_completed;
};
/// Used for dumping debug info.
/// @related IO
std::ostream& operator<<(std::ostream &out, const IO::ptr &io);
class StartThreadIO : public IO {
public:
StartThreadIO(action_id_t ionum,
uint64_t start_time,
thread_id_t thread_id)
: IO(ionum, start_time, thread_id, io_set_t()) {
}
void encode(bufferlist &bl) const override;
void write_debug(std::ostream& out) const override;
};
class StopThreadIO : public IO {
public:
StopThreadIO(action_id_t ionum,
uint64_t start_time,
thread_id_t thread_id,
const io_set_t& deps)
: IO(ionum, start_time, thread_id, deps) {
}
void encode(bufferlist &bl) const override;
void write_debug(std::ostream& out) const override;
};
class ReadIO : public IO {
public:
ReadIO(action_id_t ionum,
uint64_t start_time,
thread_id_t thread_id,
const io_set_t& deps,
imagectx_id_t imagectx,
uint64_t offset,
uint64_t length)
: IO(ionum, start_time, thread_id, deps),
m_imagectx(imagectx),
m_offset(offset),
m_length(length) {
}
void encode(bufferlist &bl) const override;
void write_debug(std::ostream& out) const override;
private:
imagectx_id_t m_imagectx;
uint64_t m_offset;
uint64_t m_length;
};
class WriteIO : public IO {
public:
WriteIO(action_id_t ionum,
uint64_t start_time,
thread_id_t thread_id,
const io_set_t& deps,
imagectx_id_t imagectx,
uint64_t offset,
uint64_t length)
: IO(ionum, start_time, thread_id, deps),
m_imagectx(imagectx),
m_offset(offset),
m_length(length) {
}
void encode(bufferlist &bl) const override;
void write_debug(std::ostream& out) const override;
private:
imagectx_id_t m_imagectx;
uint64_t m_offset;
uint64_t m_length;
};
class DiscardIO : public IO {
public:
DiscardIO(action_id_t ionum,
uint64_t start_time,
thread_id_t thread_id,
const io_set_t& deps,
imagectx_id_t imagectx,
uint64_t offset,
uint64_t length)
: IO(ionum, start_time, thread_id, deps),
m_imagectx(imagectx),
m_offset(offset),
m_length(length) {
}
void encode(bufferlist &bl) const override;
void write_debug(std::ostream& out) const override;
private:
imagectx_id_t m_imagectx;
uint64_t m_offset;
uint64_t m_length;
};
class AioReadIO : public IO {
public:
AioReadIO(action_id_t ionum,
uint64_t start_time,
thread_id_t thread_id,
const io_set_t& deps,
imagectx_id_t imagectx,
uint64_t offset,
uint64_t length)
: IO(ionum, start_time, thread_id, deps),
m_imagectx(imagectx),
m_offset(offset),
m_length(length) {
}
void encode(bufferlist &bl) const override;
void write_debug(std::ostream& out) const override;
private:
imagectx_id_t m_imagectx;
uint64_t m_offset;
uint64_t m_length;
};
class AioWriteIO : public IO {
public:
AioWriteIO(action_id_t ionum,
uint64_t start_time,
thread_id_t thread_id,
const io_set_t& deps,
imagectx_id_t imagectx,
uint64_t offset,
uint64_t length)
: IO(ionum, start_time, thread_id, deps),
m_imagectx(imagectx),
m_offset(offset),
m_length(length) {
}
void encode(bufferlist &bl) const override;
void write_debug(std::ostream& out) const override;
private:
imagectx_id_t m_imagectx;
uint64_t m_offset;
uint64_t m_length;
};
class AioDiscardIO : public IO {
public:
AioDiscardIO(action_id_t ionum,
uint64_t start_time,
thread_id_t thread_id,
const io_set_t& deps,
imagectx_id_t imagectx,
uint64_t offset,
uint64_t length)
: IO(ionum, start_time, thread_id, deps),
m_imagectx(imagectx),
m_offset(offset),
m_length(length) {
}
void encode(bufferlist &bl) const override;
void write_debug(std::ostream& out) const override;
private:
imagectx_id_t m_imagectx;
uint64_t m_offset;
uint64_t m_length;
};
class OpenImageIO : public IO {
public:
OpenImageIO(action_id_t ionum,
uint64_t start_time,
thread_id_t thread_id,
const io_set_t& deps,
imagectx_id_t imagectx,
const std::string& name,
const std::string& snap_name,
bool readonly)
: IO(ionum, start_time, thread_id, deps),
m_imagectx(imagectx),
m_name(name),
m_snap_name(snap_name),
m_readonly(readonly) {
}
void encode(bufferlist &bl) const override;
imagectx_id_t imagectx() const {
return m_imagectx;
}
void write_debug(std::ostream& out) const override;
private:
imagectx_id_t m_imagectx;
std::string m_name;
std::string m_snap_name;
bool m_readonly;
};
class CloseImageIO : public IO {
public:
CloseImageIO(action_id_t ionum,
uint64_t start_time,
thread_id_t thread_id,
const io_set_t& deps,
imagectx_id_t imagectx)
: IO(ionum, start_time, thread_id, deps),
m_imagectx(imagectx) {
}
void encode(bufferlist &bl) const override;
imagectx_id_t imagectx() const {
return m_imagectx;
}
void write_debug(std::ostream& out) const override;
private:
imagectx_id_t m_imagectx;
};
class AioOpenImageIO : public IO {
public:
AioOpenImageIO(action_id_t ionum,
uint64_t start_time,
thread_id_t thread_id,
const io_set_t& deps,
imagectx_id_t imagectx,
const std::string& name,
const std::string& snap_name,
bool readonly)
: IO(ionum, start_time, thread_id, deps),
m_imagectx(imagectx),
m_name(name),
m_snap_name(snap_name),
m_readonly(readonly) {
}
void encode(bufferlist &bl) const override;
imagectx_id_t imagectx() const {
return m_imagectx;
}
void write_debug(std::ostream& out) const override;
private:
imagectx_id_t m_imagectx;
std::string m_name;
std::string m_snap_name;
bool m_readonly;
};
class AioCloseImageIO : public IO {
public:
AioCloseImageIO(action_id_t ionum,
uint64_t start_time,
thread_id_t thread_id,
const io_set_t& deps,
imagectx_id_t imagectx)
: IO(ionum, start_time, thread_id, deps),
m_imagectx(imagectx) {
}
void encode(bufferlist &bl) const override;
imagectx_id_t imagectx() const {
return m_imagectx;
}
void write_debug(std::ostream& out) const override;
private:
imagectx_id_t m_imagectx;
};
}
#endif
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