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Clean up rollback

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This commit is contained in:
ShadowNinja 2014-06-25 20:28:41 -04:00
parent da0f1e5497
commit b1965ac209
12 changed files with 888 additions and 1255 deletions
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6
src/gamedef.h
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@ -30,7 +30,7 @@ class ITextureSource;
class ISoundManager;
class IShaderSource;
class MtEventManager;
class IRollbackReportSink;
class IRollbackManager;
namespace irr { namespace scene {
class IAnimatedMesh;
class ISceneManager;
@ -68,7 +68,7 @@ public:
// Only usable on the server, and NOT thread-safe. It is usable from the
// environment thread.
virtual IRollbackReportSink* getRollbackReportSink(){return NULL;}
virtual IRollbackManager* getRollbackManager(){return NULL;}
// Used on the client
virtual bool checkLocalPrivilege(const std::string &priv)
@ -82,7 +82,7 @@ public:
ISoundManager* sound(){return getSoundManager();}
IShaderSource* shsrc(){return getShaderSource();}
MtEventManager* event(){return getEventManager();}
IRollbackReportSink* rollback(){return getRollbackReportSink();}
IRollbackManager* rollback(){return getRollbackManager();}
};
#endif

21
src/inventory.cpp
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@ -183,7 +183,8 @@ void ItemStack::deSerialize(std::istream &is, IItemDefManager *itemdef)
legacy_nimap.getName(material, name);
if(name == "")
name = "unknown_block";
name = itemdef->getAlias(name);
if (itemdef)
name = itemdef->getAlias(name);
count = materialcount;
}
else if(name == "MaterialItem2")
@ -202,7 +203,8 @@ void ItemStack::deSerialize(std::istream &is, IItemDefManager *itemdef)
legacy_nimap.getName(material, name);
if(name == "")
name = "unknown_block";
name = itemdef->getAlias(name);
if (itemdef)
name = itemdef->getAlias(name);
count = materialcount;
}
else if(name == "node" || name == "NodeItem" || name == "MaterialItem3"
@ -223,7 +225,8 @@ void ItemStack::deSerialize(std::istream &is, IItemDefManager *itemdef)
name = fnd.next(" ");
}
fnd.skip_over(" ");
name = itemdef->getAlias(name);
if (itemdef)
name = itemdef->getAlias(name);
count = stoi(trim(fnd.next("")));
if(count == 0)
count = 1;
@ -252,7 +255,8 @@ void ItemStack::deSerialize(std::istream &is, IItemDefManager *itemdef)
count = 1;
// Then read wear
fnd.skip_over(" ");
name = itemdef->getAlias(name);
if (itemdef)
name = itemdef->getAlias(name);
wear = stoi(trim(fnd.next("")));
}
else
@ -262,7 +266,8 @@ void ItemStack::deSerialize(std::istream &is, IItemDefManager *itemdef)
// The real thing
// Apply item aliases
name = itemdef->getAlias(name);
if (itemdef)
name = itemdef->getAlias(name);
// Read the count
std::string count_str;
@ -294,9 +299,9 @@ void ItemStack::deSerialize(std::istream &is, IItemDefManager *itemdef)
} while(false);
}
if(name.empty() || count == 0)
if (name.empty() || count == 0)
clear();
else if(itemdef->get(name).type == ITEM_TOOL)
else if (itemdef && itemdef->get(name).type == ITEM_TOOL)
count = 1;
}
@ -308,12 +313,12 @@ void ItemStack::deSerialize(const std::string &str, IItemDefManager *itemdef)
std::string ItemStack::getItemString() const
{
// Get item string
std::ostringstream os(std::ios::binary);
serialize(os);
return os.str();
}
ItemStack ItemStack::addItem(const ItemStack &newitem_,
IItemDefManager *itemdef)
{

14
src/inventory.h
View File

@ -20,12 +20,13 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#ifndef INVENTORY_HEADER
#define INVENTORY_HEADER
#include <iostream>
#include <string>
#include <vector>
#include "irrlichttypes.h"
#include "debug.h"
#include "itemdef.h"
#include "irrlichttypes.h"
#include <istream>
#include <ostream>
#include <string>
#include <vector>
struct ToolCapabilities;
@ -39,8 +40,9 @@ struct ItemStack
// Serialization
void serialize(std::ostream &os) const;
void deSerialize(std::istream &is, IItemDefManager *itemdef);
void deSerialize(const std::string &s, IItemDefManager *itemdef);
// Deserialization. Pass itemdef unless you don't want aliases resolved.
void deSerialize(std::istream &is, IItemDefManager *itemdef = NULL);
void deSerialize(const std::string &s, IItemDefManager *itemdef = NULL);
// Returns the string used for inventory
std::string getItemString() const;

10
src/inventorymanager.cpp
View File

@ -368,7 +368,7 @@ void IMoveAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
*/
if(!ignore_rollback && gamedef->rollback())
{
IRollbackReportSink *rollback = gamedef->rollback();
IRollbackManager *rollback = gamedef->rollback();
// If source is not infinite, record item take
if(src_can_take_count != -1){
@ -380,7 +380,7 @@ void IMoveAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
loc = os.str();
}
action.setModifyInventoryStack(loc, from_list, from_i, false,
src_item.getItemString());
src_item);
rollback->reportAction(action);
}
// If destination is not infinite, record item put
@ -393,7 +393,7 @@ void IMoveAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
loc = os.str();
}
action.setModifyInventoryStack(loc, to_list, to_i, true,
src_item.getItemString());
src_item);
rollback->reportAction(action);
}
}
@ -632,7 +632,7 @@ void IDropAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
*/
if(!ignore_src_rollback && gamedef->rollback())
{
IRollbackReportSink *rollback = gamedef->rollback();
IRollbackManager *rollback = gamedef->rollback();
// If source is not infinite, record item take
if(src_can_take_count != -1){
@ -644,7 +644,7 @@ void IDropAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
loc = os.str();
}
action.setModifyInventoryStack(loc, from_list, from_i,
false, src_item.getItemString());
false, src_item);
rollback->reportAction(action);
}
}

2
src/map.h
View File

@ -41,7 +41,7 @@ class ServerMapSector;
class MapBlock;
class NodeMetadata;
class IGameDef;
class IRollbackReportSink;
class IRollbackManager;
class EmergeManager;
class ServerEnvironment;
struct BlockMakeData;

1528
src/rollback.cpp
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File diff suppressed because it is too large Load Diff

91
src/rollback.h
View File

@ -24,31 +24,84 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "irr_v3d.h"
#include "rollback_interface.h"
#include <list>
#include <vector>
#include "sqlite3.h"
class IGameDef;
class IRollbackManager: public IRollbackReportSink
class ActionRow;
class Entity;
class RollbackManager: public IRollbackManager
{
public:
// IRollbackReportManager
virtual void reportAction(const RollbackAction &action) = 0;
virtual std::string getActor() = 0;
virtual bool isActorGuess() = 0;
virtual void setActor(const std::string &actor, bool is_guess) = 0;
virtual std::string getSuspect(v3s16 p, float nearness_shortcut,
float min_nearness) = 0;
RollbackManager(const std::string & world_path, IGameDef * gamedef);
~RollbackManager();
virtual ~IRollbackManager() {}
virtual void flush() = 0;
// Get all actors that did something to position p, but not further than
// <seconds> in history
virtual std::list<RollbackAction> getNodeActors(v3s16 pos, int range,
time_t seconds, int limit) = 0;
// Get actions to revert <seconds> of history made by <actor>
virtual std::list<RollbackAction> getRevertActions(const std::string &actor,
time_t seconds) = 0;
void reportAction(const RollbackAction & action_);
std::string getActor();
bool isActorGuess();
void setActor(const std::string & actor, bool is_guess);
std::string getSuspect(v3s16 p, float nearness_shortcut,
float min_nearness);
void flush();
void addAction(const RollbackAction & action);
std::list<RollbackAction> getEntriesSince(time_t first_time);
std::list<RollbackAction> getNodeActors(v3s16 pos, int range,
time_t seconds, int limit);
std::list<RollbackAction> getRevertActions(
const std::string & actor_filter, time_t seconds);
private:
void registerNewActor(const int id, const std::string & name);
void registerNewNode(const int id, const std::string & name);
int getActorId(const std::string & name);
int getNodeId(const std::string & name);
const char * getActorName(const int id);
const char * getNodeName(const int id);
bool createTables();
void initDatabase();
bool registerRow(const ActionRow & row);
const std::list<ActionRow> actionRowsFromSelect(sqlite3_stmt * stmt);
ActionRow actionRowFromRollbackAction(const RollbackAction & action);
const std::list<RollbackAction> rollbackActionsFromActionRows(
const std::list<ActionRow> & rows);
const std::list<ActionRow> getRowsSince(time_t firstTime,
const std::string & actor);
const std::list<ActionRow> getRowsSince_range(time_t firstTime, v3s16 p,
int range, int limit);
const std::list<RollbackAction> getActionsSince_range(time_t firstTime, v3s16 p,
int range, int limit);
const std::list<RollbackAction> getActionsSince(time_t firstTime,
const std::string & actor = "");
void migrate(const std::string & filepath);
static float getSuspectNearness(bool is_guess, v3s16 suspect_p,
time_t suspect_t, v3s16 action_p, time_t action_t);
IGameDef * gamedef;
std::string current_actor;
bool current_actor_is_guess;
std::list<RollbackAction> action_todisk_buffer;
std::list<RollbackAction> action_latest_buffer;
std::string database_path;
sqlite3 * db;
sqlite3_stmt * stmt_insert;
sqlite3_stmt * stmt_replace;
sqlite3_stmt * stmt_select;
sqlite3_stmt * stmt_select_range;
sqlite3_stmt * stmt_select_withActor;
sqlite3_stmt * stmt_knownActor_select;
sqlite3_stmt * stmt_knownActor_insert;
sqlite3_stmt * stmt_knownNode_select;
sqlite3_stmt * stmt_knownNode_insert;
std::vector<Entity> knownActors;
std::vector<Entity> knownNodes;
};
IRollbackManager *createRollbackManager(const std::string &filepath, IGameDef *gamedef);
#endif

385
src/rollback_interface.cpp
View File

@ -34,6 +34,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#define PP(x) "("<<(x).X<<","<<(x).Y<<","<<(x).Z<<")"
RollbackNode::RollbackNode(Map *map, v3s16 p, IGameDef *gamedef)
{
INodeDefManager *ndef = gamedef->ndef();
@ -42,275 +43,89 @@ RollbackNode::RollbackNode(Map *map, v3s16 p, IGameDef *gamedef)
param1 = n.param1;
param2 = n.param2;
NodeMetadata *metap = map->getNodeMetadata(p);
if(metap){
if (metap) {
std::ostringstream os(std::ios::binary);
metap->serialize(os);
meta = os.str();
}
}
std::string RollbackAction::toString() const
{
switch(type){
case TYPE_SET_NODE: {
std::ostringstream os(std::ios::binary);
os<<"[set_node";
os<<" ";
os<<"("<<itos(p.X)<<","<<itos(p.Y)<<","<<itos(p.Z)<<")";
os<<" ";
os<<serializeJsonString(n_old.name);
os<<" ";
os<<itos(n_old.param1);
os<<" ";
os<<itos(n_old.param2);
os<<" ";
os<<serializeJsonString(n_old.meta);
os<<" ";
os<<serializeJsonString(n_new.name);
os<<" ";
os<<itos(n_new.param1);
os<<" ";
os<<itos(n_new.param2);
os<<" ";
os<<serializeJsonString(n_new.meta);
os<<"]";
return os.str(); }
case TYPE_MODIFY_INVENTORY_STACK: {
std::ostringstream os(std::ios::binary);
os<<"[modify_inventory_stack";
os<<" ";
os<<serializeJsonString(inventory_location);
os<<" ";
os<<serializeJsonString(inventory_list);
os<<" ";
os<<inventory_index;
os<<" ";
os<<(inventory_add?"add":"remove");
os<<" ";
os<<serializeJsonString(inventory_stack);
os<<"]";
return os.str(); }
std::ostringstream os(std::ios::binary);
switch (type) {
case TYPE_SET_NODE:
os << "set_node " << PP(p);
os << ": (" << serializeJsonString(n_old.name);
os << ", " << itos(n_old.param1);
os << ", " << itos(n_old.param2);
os << ", " << serializeJsonString(n_old.meta);
os << ") -> (" << serializeJsonString(n_new.name);
os << ", " << itos(n_new.param1);
os << ", " << itos(n_new.param2);
os << ", " << serializeJsonString(n_new.meta);
os << ')';
case TYPE_MODIFY_INVENTORY_STACK:
os << "modify_inventory_stack (";
os << serializeJsonString(inventory_location);
os << ", " << serializeJsonString(inventory_list);
os << ", " << inventory_index;
os << ", " << (inventory_add ? "add" : "remove");
os << ", " << serializeJsonString(inventory_stack.getItemString());
os << ')';
default:
return "none";
return "<unknown action>";
}
return os.str();
}
void RollbackAction::fromStream(std::istream &is) throw(SerializationError)
{
int c = is.get();
if(c != '['){
is.putback(c);
throw SerializationError("RollbackAction: starting [ not found");
}
std::string id;
std::getline(is, id, ' ');
if(id == "set_node")
{
c = is.get();
if(c != '('){
is.putback(c);
throw SerializationError("RollbackAction: starting ( not found");
}
// Position
std::string px_raw;
std::string py_raw;
std::string pz_raw;
std::getline(is, px_raw, ',');
std::getline(is, py_raw, ',');
std::getline(is, pz_raw, ')');
c = is.get();
if(c != ' '){
is.putback(c);
throw SerializationError("RollbackAction: after-p ' ' not found");
}
v3s16 loaded_p(stoi(px_raw), stoi(py_raw), stoi(pz_raw));
// Old node
std::string old_name;
try{
old_name = deSerializeJsonString(is);
}catch(SerializationError &e){
errorstream<<"Serialization error in RollbackAction::fromStream(): "
<<"old_name: "<<e.what()<<std::endl;
throw e;
}
c = is.get();
if(c != ' '){
is.putback(c);
throw SerializationError("RollbackAction: after-old_name ' ' not found");
}
std::string old_p1_raw;
std::string old_p2_raw;
std::getline(is, old_p1_raw, ' ');
std::getline(is, old_p2_raw, ' ');
int old_p1 = stoi(old_p1_raw);
int old_p2 = stoi(old_p2_raw);
std::string old_meta;
try{
old_meta = deSerializeJsonString(is);
}catch(SerializationError &e){
errorstream<<"Serialization error in RollbackAction::fromStream(): "
<<"old_meta: "<<e.what()<<std::endl;
throw e;
}
c = is.get();
if(c != ' '){
is.putback(c);
throw SerializationError("RollbackAction: after-old_meta ' ' not found");
}
// New node
std::string new_name;
try{
new_name = deSerializeJsonString(is);
}catch(SerializationError &e){
errorstream<<"Serialization error in RollbackAction::fromStream(): "
<<"new_name: "<<e.what()<<std::endl;
throw e;
}
c = is.get();
if(c != ' '){
is.putback(c);
throw SerializationError("RollbackAction: after-new_name ' ' not found");
}
std::string new_p1_raw;
std::string new_p2_raw;
std::getline(is, new_p1_raw, ' ');
std::getline(is, new_p2_raw, ' ');
int new_p1 = stoi(new_p1_raw);
int new_p2 = stoi(new_p2_raw);
std::string new_meta;
try{
new_meta = deSerializeJsonString(is);
}catch(SerializationError &e){
errorstream<<"Serialization error in RollbackAction::fromStream(): "
<<"new_meta: "<<e.what()<<std::endl;
throw e;
}
c = is.get();
if(c != ']'){
is.putback(c);
throw SerializationError("RollbackAction: after-new_meta ] not found");
}
// Set values
type = TYPE_SET_NODE;
p = loaded_p;
n_old.name = old_name;
n_old.param1 = old_p1;
n_old.param2 = old_p2;
n_old.meta = old_meta;
n_new.name = new_name;
n_new.param1 = new_p1;
n_new.param2 = new_p2;
n_new.meta = new_meta;
}
else if(id == "modify_inventory_stack")
{
// Location
std::string location;
try{
location = deSerializeJsonString(is);
}catch(SerializationError &e){
errorstream<<"Serialization error in RollbackAction::fromStream(): "
<<"location: "<<e.what()<<std::endl;
throw e;
}
c = is.get();
if(c != ' '){
is.putback(c);
throw SerializationError("RollbackAction: after-loc ' ' not found");
}
// List
std::string listname;
try{
listname = deSerializeJsonString(is);
}catch(SerializationError &e){
errorstream<<"Serialization error in RollbackAction::fromStream(): "
<<"listname: "<<e.what()<<std::endl;
throw e;
}
c = is.get();
if(c != ' '){
is.putback(c);
throw SerializationError("RollbackAction: after-list ' ' not found");
}
// Index
std::string index_raw;
std::getline(is, index_raw, ' ');
// add/remove
std::string addremove;
std::getline(is, addremove, ' ');
if(addremove != "add" && addremove != "remove"){
throw SerializationError("RollbackAction: addremove is not add or remove");
}
// Itemstring
std::string stack;
try{
stack = deSerializeJsonString(is);
}catch(SerializationError &e){
errorstream<<"Serialization error in RollbackAction::fromStream(): "
<<"stack: "<<e.what()<<std::endl;
throw e;
}
// Set values
type = TYPE_MODIFY_INVENTORY_STACK;
inventory_location = location;
inventory_list = listname;
inventory_index = stoi(index_raw);
inventory_add = (addremove == "add");
inventory_stack = stack;
}
else
{
throw SerializationError("RollbackAction: Unknown id");
}
}
bool RollbackAction::isImportant(IGameDef *gamedef) const
{
switch(type){
case TYPE_SET_NODE: {
// If names differ, action is always important
if(n_old.name != n_new.name)
return true;
// If metadata differs, action is always important
if(n_old.meta != n_new.meta)
return true;
INodeDefManager *ndef = gamedef->ndef();
// Both are of the same name, so a single definition is needed
const ContentFeatures &def = ndef->get(n_old.name);
// If the type is flowing liquid, action is not important
if(def.liquid_type == LIQUID_FLOWING)
return false;
// Otherwise action is important
return true; }
default:
if (type != TYPE_SET_NODE)
return true;
}
// If names differ, action is always important
if(n_old.name != n_new.name)
return true;
// If metadata differs, action is always important
if(n_old.meta != n_new.meta)
return true;
INodeDefManager *ndef = gamedef->ndef();
// Both are of the same name, so a single definition is needed
const ContentFeatures &def = ndef->get(n_old.name);
// If the type is flowing liquid, action is not important
if (def.liquid_type == LIQUID_FLOWING)
return false;
// Otherwise action is important
return true;
}
bool RollbackAction::getPosition(v3s16 *dst) const
{
switch(type){
case RollbackAction::TYPE_SET_NODE:
if(dst) *dst = p;
switch (type) {
case TYPE_SET_NODE:
if (dst) *dst = p;
return true;
case RollbackAction::TYPE_MODIFY_INVENTORY_STACK: {
case TYPE_MODIFY_INVENTORY_STACK: {
InventoryLocation loc;
loc.deSerialize(inventory_location);
if(loc.type != InventoryLocation::NODEMETA)
if (loc.type != InventoryLocation::NODEMETA) {
return false;
if(dst) *dst = loc.p;
}
if (dst) *dst = loc.p;
return true; }
default:
return false;
}
}
bool RollbackAction::applyRevert(Map *map, InventoryManager *imgr, IGameDef *gamedef) const
{
try{
switch(type){
try {
switch (type) {
case TYPE_NOTHING:
return true;
case TYPE_SET_NODE: {
@ -321,40 +136,39 @@ bool RollbackAction::applyRevert(Map *map, InventoryManager *imgr, IGameDef *gam
MapNode current_node = map->getNodeNoEx(p);
std::string current_name = ndef->get(current_node).name;
// If current node not the new node, it's bad
if(current_name != n_new.name)
if (current_name != n_new.name) {
return false;
/*// If current node not the new node and not ignore, it's bad
if(current_name != n_new.name && current_name != "ignore")
return false;*/
}
// Create rollback node
MapNode n(ndef, n_old.name, n_old.param1, n_old.param2);
// Set rollback node
try{
if(!map->addNodeWithEvent(p, n)){
infostream<<"RollbackAction::applyRevert(): "
<<"AddNodeWithEvent failed at "
<<PP(p)<<" for "<<n_old.name<<std::endl;
try {
if (!map->addNodeWithEvent(p, n)) {
infostream << "RollbackAction::applyRevert(): "
<< "AddNodeWithEvent failed at "
<< PP(p) << " for " << n_old.name
<< std::endl;
return false;
}
NodeMetadata *meta = map->getNodeMetadata(p);
if(n_old.meta != ""){
if(!meta){
if (n_old.meta.empty()) {
map->removeNodeMetadata(p);
} else {
NodeMetadata *meta = map->getNodeMetadata(p);
if (!meta) {
meta = new NodeMetadata(gamedef);
if(!map->setNodeMetadata(p, meta)){
if (!map->setNodeMetadata(p, meta)) {
delete meta;
infostream<<"RollbackAction::applyRevert(): "
<<"setNodeMetadata failed at "
<<PP(p)<<" for "<<n_old.name<<std::endl;
infostream << "RollbackAction::applyRevert(): "
<< "setNodeMetadata failed at "
<< PP(p) << " for " << n_old.name
<< std::endl;
return false;
}
}
std::istringstream is(n_old.meta, std::ios::binary);
meta->deSerialize(is);
} else {
map->removeNodeMetadata(p);
}
// NOTE: This same code is in scriptapi.cpp
// Inform other things that the metadata has changed
// Inform other things that the meta data has changed
v3s16 blockpos = getContainerPos(p, MAP_BLOCKSIZE);
MapEditEvent event;
event.type = MEET_BLOCK_NODE_METADATA_CHANGED;
@ -362,12 +176,14 @@ bool RollbackAction::applyRevert(Map *map, InventoryManager *imgr, IGameDef *gam
map->dispatchEvent(&event);
// Set the block to be saved
MapBlock *block = map->getBlockNoCreateNoEx(blockpos);
if(block)
if (block) {
block->raiseModified(MOD_STATE_WRITE_NEEDED,
"NodeMetaRef::reportMetadataChange");
}catch(InvalidPositionException &e){
infostream<<"RollbackAction::applyRevert(): "
<<"InvalidPositionException: "<<e.what()<<std::endl;
"NodeMetaRef::reportMetadataChange");
}
} catch (InvalidPositionException &e) {
infostream << "RollbackAction::applyRevert(): "
<< "InvalidPositionException: " << e.what()
<< std::endl;
return false;
}
// Success
@ -375,47 +191,46 @@ bool RollbackAction::applyRevert(Map *map, InventoryManager *imgr, IGameDef *gam
case TYPE_MODIFY_INVENTORY_STACK: {
InventoryLocation loc;
loc.deSerialize(inventory_location);
ItemStack stack;
stack.deSerialize(inventory_stack, gamedef->idef());
std::string real_name = gamedef->idef()->getAlias(inventory_stack.name);
Inventory *inv = imgr->getInventory(loc);
if(!inv){
infostream<<"RollbackAction::applyRevert(): Could not get "
"inventory at "<<inventory_location<<std::endl;
if (!inv) {
infostream << "RollbackAction::applyRevert(): Could not get "
"inventory at " << inventory_location << std::endl;
return false;
}
InventoryList *list = inv->getList(inventory_list);
if(!list){
infostream<<"RollbackAction::applyRevert(): Could not get "
"inventory list \""<<inventory_list<<"\" in "
<<inventory_location<<std::endl;
if (!list) {
infostream << "RollbackAction::applyRevert(): Could not get "
"inventory list \"" << inventory_list << "\" in "
<< inventory_location << std::endl;
return false;
}
if(list->getSize() <= inventory_index){
infostream<<"RollbackAction::applyRevert(): List index "
<<inventory_index<<" too large in "
<<"inventory list \""<<inventory_list<<"\" in "
<<inventory_location<<std::endl;
if (list->getSize() <= inventory_index) {
infostream << "RollbackAction::applyRevert(): List index "
<< inventory_index << " too large in "
<< "inventory list \"" << inventory_list << "\" in "
<< inventory_location << std::endl;
}
// If item was added, take away item, otherwise add removed item
if(inventory_add){
if (inventory_add) {
// Silently ignore different current item
if(list->getItem(inventory_index).name != stack.name)
if (list->getItem(inventory_index).name != real_name)
return false;
list->takeItem(inventory_index, stack.count);
list->takeItem(inventory_index, inventory_stack.count);
} else {
list->addItem(inventory_index, stack);
list->addItem(inventory_index, inventory_stack);
}
// Inventory was modified; send to clients
imgr->setInventoryModified(loc);
return true; }
default:
errorstream<<"RollbackAction::applyRevert(): type not handled"
<<std::endl;
errorstream << "RollbackAction::applyRevert(): type not handled"
<< std::endl;
return false;
}
}catch(SerializationError &e){
errorstream<<"RollbackAction::applyRevert(): n_old.name="<<n_old.name
<<", SerializationError: "<<e.what()<<std::endl;
} catch(SerializationError &e) {
errorstream << "RollbackAction::applyRevert(): n_old.name=" << n_old.name
<< ", SerializationError: " << e.what() << std::endl;
}
return false;
}

57
src/rollback_interface.h
View File

@ -23,7 +23,9 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "irr_v3d.h"
#include <string>
#include <iostream>
#include <list>
#include "exceptions.h"
#include "inventory.h"
class Map;
class IGameDef;
@ -37,15 +39,12 @@ struct RollbackNode
int param2;
std::string meta;
bool operator==(const RollbackNode &other)
bool operator == (const RollbackNode &other)
{
return (name == other.name && param1 == other.param1 &&
param2 == other.param2 && meta == other.meta);
}
bool operator!=(const RollbackNode &other)
{
return !(*this == other);
}
bool operator != (const RollbackNode &other) { return !(*this == other); }
RollbackNode():
param1(0),
@ -55,6 +54,7 @@ struct RollbackNode
RollbackNode(Map *map, v3s16 p, IGameDef *gamedef);
};
struct RollbackAction
{
enum Type{
@ -75,7 +75,7 @@ struct RollbackAction
std::string inventory_list;
u32 inventory_index;
bool inventory_add;
std::string inventory_stack;
ItemStack inventory_stack;
RollbackAction():
type(TYPE_NOTHING),
@ -94,7 +94,7 @@ struct RollbackAction
void setModifyInventoryStack(const std::string &inventory_location_,
const std::string &inventory_list_, int index_,
bool add_, const std::string &inventory_stack_)
bool add_, const ItemStack &inventory_stack_)
{
type = TYPE_MODIFY_INVENTORY_STACK;
inventory_location = inventory_location_;
@ -106,7 +106,6 @@ struct RollbackAction
// String should not contain newlines or nulls
std::string toString() const;
void fromStream(std::istream &is) throw(SerializationError);
// Eg. flowing water level changes are not important
bool isImportant(IGameDef *gamedef) const;
@ -116,41 +115,53 @@ struct RollbackAction
bool applyRevert(Map *map, InventoryManager *imgr, IGameDef *gamedef) const;
};
class IRollbackReportSink
class IRollbackManager
{
public:
virtual ~IRollbackReportSink(){}
virtual void reportAction(const RollbackAction &action) = 0;
virtual std::string getActor() = 0;
virtual bool isActorGuess() = 0;
virtual void setActor(const std::string &actor, bool is_guess) = 0;
virtual std::string getSuspect(v3s16 p, float nearness_shortcut,
float min_nearness) = 0;
float min_nearness) = 0;
virtual ~IRollbackManager() {};
virtual void flush() = 0;
// Get all actors that did something to position p, but not further than
// <seconds> in history
virtual std::list<RollbackAction> getNodeActors(v3s16 pos, int range,
time_t seconds, int limit) = 0;
// Get actions to revert <seconds> of history made by <actor>
virtual std::list<RollbackAction> getRevertActions(const std::string &actor,
time_t seconds) = 0;
};
class RollbackScopeActor
{
public:
RollbackScopeActor(IRollbackReportSink *sink, const std::string &actor,
bool is_guess=false):
m_sink(sink)
RollbackScopeActor(IRollbackManager * rollback_,
const std::string & actor, bool is_guess = false) :
rollback(rollback_)
{
if(m_sink){
m_actor_was = m_sink->getActor();
m_actor_was_guess = m_sink->isActorGuess();
m_sink->setActor(actor, is_guess);
if (rollback) {
old_actor = rollback->getActor();
old_actor_guess = rollback->isActorGuess();
rollback->setActor(actor, is_guess);
}
}
~RollbackScopeActor()
{
if(m_sink){
m_sink->setActor(m_actor_was, m_actor_was_guess);
if (rollback) {
rollback->setActor(old_actor, old_actor_guess);
}
}
private:
IRollbackReportSink *m_sink;
std::string m_actor_was;
bool m_actor_was_guess;
IRollbackManager * rollback;
std::string old_actor;
bool old_actor_guess;
};
#endif

2
src/script/lua_api/l_rollback.cpp
View File

@ -21,7 +21,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "lua_api/l_internal.h"
#include "common/c_converter.h"
#include "server.h"
#include "rollback.h"
#include "rollback_interface.h"
void push_RollbackNode(lua_State *L, RollbackNode &node)

16
src/server.cpp
View File

@ -181,7 +181,6 @@ Server::Server(
this),
m_banmanager(NULL),
m_rollback(NULL),
m_rollback_sink_enabled(true),
m_enable_rollback_recording(false),
m_emerge(NULL),
m_script(NULL),
@ -241,12 +240,11 @@ Server::Server(
throw ServerError("Failed to initialize world");
// Create ban manager
std::string ban_path = m_path_world+DIR_DELIM+"ipban.txt";
std::string ban_path = m_path_world + DIR_DELIM "ipban.txt";
m_banmanager = new BanManager(ban_path);
// Create rollback manager
std::string rollback_path = m_path_world+DIR_DELIM+"rollback.txt";
m_rollback = createRollbackManager(rollback_path, this);
m_rollback = new RollbackManager(m_path_world, this);
ModConfiguration modconf(m_path_world);
m_mods = modconf.getMods();
@ -4834,8 +4832,6 @@ bool Server::rollbackRevertActions(const std::list<RollbackAction> &actions,
{
infostream<<"Server::rollbackRevertActions(len="<<actions.size()<<")"<<std::endl;
ServerMap *map = (ServerMap*)(&m_env->getMap());
// Disable rollback report sink while reverting
BoolScopeSet rollback_scope_disable(&m_rollback_sink_enabled, false);
// Fail if no actions to handle
if(actions.empty()){
@ -4915,14 +4911,6 @@ MtEventManager* Server::getEventManager()
{
return m_event;
}
IRollbackReportSink* Server::getRollbackReportSink()
{
if(!m_enable_rollback_recording)
return NULL;
if(!m_rollback_sink_enabled)
return NULL;
return m_rollback;
}
IWritableItemDefManager* Server::getWritableItemDefManager()
{

11
src/server.h
View File

@ -29,7 +29,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "mods.h"
#include "inventorymanager.h"
#include "subgame.h"
#include "rollback_interface.h" // Needed for rollbackRevertActions()
#include "util/numeric.h"
#include "util/thread.h"
#include "environment.h"
@ -50,6 +49,7 @@ class Inventory;
class Player;
class PlayerSAO;
class IRollbackManager;
class RollbackAction;
class EmergeManager;
class GameScripting;
class ServerEnvironment;
@ -268,9 +268,6 @@ public:
// Envlock and conlock should be locked when using scriptapi
GameScripting *getScriptIface(){ return m_script; }
// Envlock should be locked when using the rollback manager
IRollbackManager *getRollbackManager(){ return m_rollback; }
//TODO: determine what (if anything) should be locked to access EmergeManager
EmergeManager *getEmergeManager(){ return m_emerge; }
@ -289,9 +286,10 @@ public:
virtual u16 allocateUnknownNodeId(const std::string &name);
virtual ISoundManager* getSoundManager();
virtual MtEventManager* getEventManager();
virtual IRollbackReportSink* getRollbackReportSink();
virtual scene::ISceneManager* getSceneManager();
virtual IRollbackManager *getRollbackManager() { return m_rollback; }
IWritableItemDefManager* getWritableItemDefManager();
IWritableNodeDefManager* getWritableNodeDefManager();
IWritableCraftDefManager* getWritableCraftDefManager();
@ -488,7 +486,6 @@ private:
// Rollback manager (behind m_env_mutex)
IRollbackManager *m_rollback;
bool m_rollback_sink_enabled;
bool m_enable_rollback_recording; // Updated once in a while
// Emerge manager