+++ /dev/null
-// -*- 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.
- *
- */
-
-#include "actions.hpp"
-#include <boost/foreach.hpp>
-#include <cstdlib>
-#include "PendingIO.hpp"
-#include "rbd_replay_debug.hpp"
-
-#define dout_context g_ceph_context
-
-using namespace rbd_replay;
-using namespace std;
-
-namespace {
-
-std::string create_fake_data() {
- char data[1 << 20]; // 1 MB
- for (unsigned int i = 0; i < sizeof(data); i++) {
- data[i] = (char) i;
- }
- return std::string(data, sizeof(data));
-}
-
-struct ConstructVisitor : public boost::static_visitor<Action::ptr> {
- inline Action::ptr operator()(const action::StartThreadAction &action) const {
- return Action::ptr(new StartThreadAction(action));
- }
-
- inline Action::ptr operator()(const action::StopThreadAction &action) const{
- return Action::ptr(new StopThreadAction(action));
- }
-
- inline Action::ptr operator()(const action::ReadAction &action) const {
- return Action::ptr(new ReadAction(action));
- }
-
- inline Action::ptr operator()(const action::AioReadAction &action) const {
- return Action::ptr(new AioReadAction(action));
- }
-
- inline Action::ptr operator()(const action::WriteAction &action) const {
- return Action::ptr(new WriteAction(action));
- }
-
- inline Action::ptr operator()(const action::AioWriteAction &action) const {
- return Action::ptr(new AioWriteAction(action));
- }
-
- inline Action::ptr operator()(const action::DiscardAction &action) const {
- return Action::ptr(new DiscardAction(action));
- }
-
- inline Action::ptr operator()(const action::AioDiscardAction &action) const {
- return Action::ptr(new AioDiscardAction(action));
- }
-
- inline Action::ptr operator()(const action::OpenImageAction &action) const {
- return Action::ptr(new OpenImageAction(action));
- }
-
- inline Action::ptr operator()(const action::CloseImageAction &action) const {
- return Action::ptr(new CloseImageAction(action));
- }
-
- inline Action::ptr operator()(const action::AioOpenImageAction &action) const {
- return Action::ptr(new AioOpenImageAction(action));
- }
-
- inline Action::ptr operator()(const action::AioCloseImageAction &action) const {
- return Action::ptr(new AioCloseImageAction(action));
- }
-
- inline Action::ptr operator()(const action::UnknownAction &action) const {
- return Action::ptr();
- }
-};
-
-} // anonymous namespace
-
-std::ostream& rbd_replay::operator<<(std::ostream& o, const Action& a) {
- return a.dump(o);
-}
-
-Action::ptr Action::construct(const action::ActionEntry &action_entry) {
- return boost::apply_visitor(ConstructVisitor(), action_entry.action);
-}
-
-void StartThreadAction::perform(ActionCtx &ctx) {
- cerr << "StartThreadAction should never actually be performed" << std::endl;
- exit(1);
-}
-
-void StopThreadAction::perform(ActionCtx &ctx) {
- dout(ACTION_LEVEL) << "Performing " << *this << dendl;
- ctx.stop();
-}
-
-void AioReadAction::perform(ActionCtx &worker) {
- dout(ACTION_LEVEL) << "Performing " << *this << dendl;
- librbd::Image *image = worker.get_image(m_action.imagectx_id);
- assert(image);
- PendingIO::ptr io(new PendingIO(pending_io_id(), worker));
- worker.add_pending(io);
- int r = image->aio_read(m_action.offset, m_action.length, io->bufferlist(), &io->completion());
- assertf(r >= 0, "id = %d, r = %d", id(), r);
-}
-
-void ReadAction::perform(ActionCtx &worker) {
- dout(ACTION_LEVEL) << "Performing " << *this << dendl;
- librbd::Image *image = worker.get_image(m_action.imagectx_id);
- PendingIO::ptr io(new PendingIO(pending_io_id(), worker));
- worker.add_pending(io);
- ssize_t r = image->read(m_action.offset, m_action.length, io->bufferlist());
- assertf(r >= 0, "id = %d, r = %d", id(), r);
- worker.remove_pending(io);
-}
-
-void AioWriteAction::perform(ActionCtx &worker) {
- static const std::string fake_data(create_fake_data());
- dout(ACTION_LEVEL) << "Performing " << *this << dendl;
- librbd::Image *image = worker.get_image(m_action.imagectx_id);
- PendingIO::ptr io(new PendingIO(pending_io_id(), worker));
- uint64_t remaining = m_action.length;
- while (remaining > 0) {
- uint64_t n = std::min(remaining, (uint64_t)fake_data.length());
- io->bufferlist().append(fake_data.data(), n);
- remaining -= n;
- }
- worker.add_pending(io);
- if (worker.readonly()) {
- worker.remove_pending(io);
- } else {
- int r = image->aio_write(m_action.offset, m_action.length, io->bufferlist(), &io->completion());
- assertf(r >= 0, "id = %d, r = %d", id(), r);
- }
-}
-
-void WriteAction::perform(ActionCtx &worker) {
- dout(ACTION_LEVEL) << "Performing " << *this << dendl;
- librbd::Image *image = worker.get_image(m_action.imagectx_id);
- PendingIO::ptr io(new PendingIO(pending_io_id(), worker));
- worker.add_pending(io);
- io->bufferlist().append_zero(m_action.length);
- if (!worker.readonly()) {
- ssize_t r = image->write(m_action.offset, m_action.length, io->bufferlist());
- assertf(r >= 0, "id = %d, r = %d", id(), r);
- }
- worker.remove_pending(io);
-}
-
-void AioDiscardAction::perform(ActionCtx &worker) {
- dout(ACTION_LEVEL) << "Performing " << *this << dendl;
- librbd::Image *image = worker.get_image(m_action.imagectx_id);
- PendingIO::ptr io(new PendingIO(pending_io_id(), worker));
- worker.add_pending(io);
- if (worker.readonly()) {
- worker.remove_pending(io);
- } else {
- int r = image->aio_discard(m_action.offset, m_action.length, &io->completion());
- assertf(r >= 0, "id = %d, r = %d", id(), r);
- }
-}
-
-void DiscardAction::perform(ActionCtx &worker) {
- dout(ACTION_LEVEL) << "Performing " << *this << dendl;
- librbd::Image *image = worker.get_image(m_action.imagectx_id);
- PendingIO::ptr io(new PendingIO(pending_io_id(), worker));
- worker.add_pending(io);
- if (!worker.readonly()) {
- ssize_t r = image->discard(m_action.offset, m_action.length);
- assertf(r >= 0, "id = %d, r = %d", id(), r);
- }
- worker.remove_pending(io);
-}
-
-void OpenImageAction::perform(ActionCtx &worker) {
- dout(ACTION_LEVEL) << "Performing " << *this << dendl;
- PendingIO::ptr io(new PendingIO(pending_io_id(), worker));
- worker.add_pending(io);
- librbd::Image *image = new librbd::Image();
- librbd::RBD *rbd = worker.rbd();
- rbd_loc name(worker.map_image_name(m_action.name, m_action.snap_name));
- int r;
- if (m_action.read_only || worker.readonly()) {
- r = rbd->open_read_only(*worker.ioctx(), *image, name.image.c_str(), name.snap.c_str());
- } else {
- r = rbd->open(*worker.ioctx(), *image, name.image.c_str(), name.snap.c_str());
- }
- if (r) {
- cerr << "Unable to open image '" << m_action.name
- << "' with snap '" << m_action.snap_name
- << "' (mapped to '" << name.str()
- << "') and readonly " << m_action.read_only
- << ": (" << -r << ") " << strerror(-r) << std::endl;
- exit(1);
- }
- worker.put_image(m_action.imagectx_id, image);
- worker.remove_pending(io);
-}
-
-void CloseImageAction::perform(ActionCtx &worker) {
- dout(ACTION_LEVEL) << "Performing " << *this << dendl;
- worker.erase_image(m_action.imagectx_id);
- worker.set_action_complete(pending_io_id());
-}
-
-void AioOpenImageAction::perform(ActionCtx &worker) {
- dout(ACTION_LEVEL) << "Performing " << *this << dendl;
- // TODO: Make it async
- PendingIO::ptr io(new PendingIO(pending_io_id(), worker));
- worker.add_pending(io);
- librbd::Image *image = new librbd::Image();
- librbd::RBD *rbd = worker.rbd();
- rbd_loc name(worker.map_image_name(m_action.name, m_action.snap_name));
- int r;
- if (m_action.read_only || worker.readonly()) {
- r = rbd->open_read_only(*worker.ioctx(), *image, name.image.c_str(), name.snap.c_str());
- } else {
- r = rbd->open(*worker.ioctx(), *image, name.image.c_str(), name.snap.c_str());
- }
- if (r) {
- cerr << "Unable to open image '" << m_action.name
- << "' with snap '" << m_action.snap_name
- << "' (mapped to '" << name.str()
- << "') and readonly " << m_action.read_only
- << ": (" << -r << ") " << strerror(-r) << std::endl;
- exit(1);
- }
- worker.put_image(m_action.imagectx_id, image);
- worker.remove_pending(io);
-}
-
-void AioCloseImageAction::perform(ActionCtx &worker) {
- dout(ACTION_LEVEL) << "Performing " << *this << dendl;
- // TODO: Make it async
- worker.erase_image(m_action.imagectx_id);
- worker.set_action_complete(pending_io_id());
-}
Code Review / stor4nfv.git / blobdiff