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authorSmallJoker <SmallJoker@users.noreply.github.com>2019-09-24 19:05:28 +0200
committerGitHub <noreply@github.com>2019-09-24 19:05:28 +0200
commit26b39f1eae1f576669cbf49c6db94ef4ed8624df (patch)
treedd0a508d4d6987f2c667cbf342955f64ebbd02af /src
parentd77ea764768f5cde9e8f0781356a67d723aa7609 (diff)
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Fix some reference counters (memleak) (#8981)
Fix some reference counters (memleak) Map::dispatchEvent: Allocation safety using references
Diffstat (limited to 'src')
-rw-r--r--src/client/fontengine.cpp5
-rw-r--r--src/gui/guiFormSpecMenu.cpp6
-rw-r--r--src/map.cpp8
-rw-r--r--src/map.h17
-rw-r--r--src/mapgen/mg_schematic.cpp2
-rw-r--r--src/mapgen/treegen.cpp2
-rw-r--r--src/rollback_interface.cpp2
-rw-r--r--src/script/lua_api/l_env.cpp4
-rw-r--r--src/script/lua_api/l_nodemeta.cpp2
-rw-r--r--src/script/lua_api/l_vmanip.cpp2
-rw-r--r--src/server.cpp15
-rw-r--r--src/server.h2
12 files changed, 30 insertions, 37 deletions
diff --git a/src/client/fontengine.cpp b/src/client/fontengine.cpp
index c32d0f1a4..858d6780e 100644
--- a/src/client/fontengine.cpp
+++ b/src/client/fontengine.cpp
@@ -275,7 +275,6 @@ void FontEngine::initFont(unsigned int basesize, FontMode mode)
font_shadow_alpha);
if (font) {
- font->grab();
m_font_cache[mode][basesize] = font;
return;
}
@@ -365,8 +364,6 @@ void FontEngine::initSimpleFont(unsigned int basesize, FontMode mode)
}
}
- if (font) {
- font->grab();
+ if (font)
m_font_cache[mode][basesize] = font;
- }
}
diff --git a/src/gui/guiFormSpecMenu.cpp b/src/gui/guiFormSpecMenu.cpp
index e8a7f546e..390c81bc1 100644
--- a/src/gui/guiFormSpecMenu.cpp
+++ b/src/gui/guiFormSpecMenu.cpp
@@ -1208,12 +1208,14 @@ void GUIFormSpecMenu::createTextField(parserData *data, FieldSpec &spec,
true, Environment, this, spec.fid, rect, is_editable, is_multiline);
e->drop();
} else {
- if (is_multiline)
+ if (is_multiline) {
e = new GUIEditBoxWithScrollBar(spec.fdefault.c_str(), true,
Environment, this, spec.fid, rect, is_editable, true);
- else if (is_editable)
+ e->drop();
+ } else if (is_editable) {
e = Environment->addEditBox(spec.fdefault.c_str(), rect, true,
this, spec.fid);
+ }
}
if (e) {
diff --git a/src/map.cpp b/src/map.cpp
index 022eb9f19..0a7099a06 100644
--- a/src/map.cpp
+++ b/src/map.cpp
@@ -89,7 +89,7 @@ void Map::removeEventReceiver(MapEventReceiver *event_receiver)
m_event_receivers.erase(event_receiver);
}
-void Map::dispatchEvent(MapEditEvent *event)
+void Map::dispatchEvent(const MapEditEvent &event)
{
for (MapEventReceiver *event_receiver : m_event_receivers) {
event_receiver->onMapEditEvent(event);
@@ -274,7 +274,7 @@ bool Map::addNodeWithEvent(v3s16 p, MapNode n, bool remove_metadata)
succeeded = false;
}
- dispatchEvent(&event);
+ dispatchEvent(event);
return succeeded;
}
@@ -299,7 +299,7 @@ bool Map::removeNodeWithEvent(v3s16 p)
succeeded = false;
}
- dispatchEvent(&event);
+ dispatchEvent(event);
return succeeded;
}
@@ -2220,7 +2220,7 @@ MapBlock* ServerMap::loadBlock(v3s16 blockpos)
for (it = modified_blocks.begin();
it != modified_blocks.end(); ++it)
event.modified_blocks.insert(it->first);
- dispatchEvent(&event);
+ dispatchEvent(event);
}
}
return block;
diff --git a/src/map.h b/src/map.h
index 67e00c6f4..392ec3f25 100644
--- a/src/map.h
+++ b/src/map.h
@@ -79,18 +79,7 @@ struct MapEditEvent
MapEditEvent() = default;
- MapEditEvent * clone()
- {
- MapEditEvent *event = new MapEditEvent();
- event->type = type;
- event->p = p;
- event->n = n;
- event->modified_blocks = modified_blocks;
- event->is_private_change = is_private_change;
- return event;
- }
-
- VoxelArea getArea()
+ VoxelArea getArea() const
{
switch(type){
case MEET_ADDNODE:
@@ -125,7 +114,7 @@ class MapEventReceiver
{
public:
// event shall be deleted by caller after the call.
- virtual void onMapEditEvent(MapEditEvent *event) = 0;
+ virtual void onMapEditEvent(const MapEditEvent &event) = 0;
};
class Map /*: public NodeContainer*/
@@ -152,7 +141,7 @@ public:
void addEventReceiver(MapEventReceiver *event_receiver);
void removeEventReceiver(MapEventReceiver *event_receiver);
// event shall be deleted by caller after the call.
- void dispatchEvent(MapEditEvent *event);
+ void dispatchEvent(const MapEditEvent &event);
// On failure returns NULL
MapSector * getSectorNoGenerateNoLock(v2s16 p2d);
diff --git a/src/mapgen/mg_schematic.cpp b/src/mapgen/mg_schematic.cpp
index 36f1dd76b..c1acbfd9d 100644
--- a/src/mapgen/mg_schematic.cpp
+++ b/src/mapgen/mg_schematic.cpp
@@ -246,7 +246,7 @@ void Schematic::placeOnMap(ServerMap *map, v3s16 p, u32 flags,
for (it = modified_blocks.begin(); it != modified_blocks.end(); ++it)
event.modified_blocks.insert(it->first);
- map->dispatchEvent(&event);
+ map->dispatchEvent(event);
}
diff --git a/src/mapgen/treegen.cpp b/src/mapgen/treegen.cpp
index 4c351fcef..0d8af2851 100644
--- a/src/mapgen/treegen.cpp
+++ b/src/mapgen/treegen.cpp
@@ -135,7 +135,7 @@ treegen::error spawn_ltree(ServerEnvironment *env, v3s16 p0,
event.type = MEET_OTHER;
for (auto &modified_block : modified_blocks)
event.modified_blocks.insert(modified_block.first);
- map->dispatchEvent(&event);
+ map->dispatchEvent(event);
return SUCCESS;
}
diff --git a/src/rollback_interface.cpp b/src/rollback_interface.cpp
index 0c8aef9ab..c00206e98 100644
--- a/src/rollback_interface.cpp
+++ b/src/rollback_interface.cpp
@@ -176,7 +176,7 @@ bool RollbackAction::applyRevert(Map *map, InventoryManager *imgr, IGameDef *gam
MapEditEvent event;
event.type = MEET_BLOCK_NODE_METADATA_CHANGED;
event.p = p;
- map->dispatchEvent(&event);
+ map->dispatchEvent(event);
} catch (InvalidPositionException &e) {
infostream << "RollbackAction::applyRevert(): "
<< "InvalidPositionException: " << e.what()
diff --git a/src/script/lua_api/l_env.cpp b/src/script/lua_api/l_env.cpp
index 34e079af7..a56b1cb0b 100644
--- a/src/script/lua_api/l_env.cpp
+++ b/src/script/lua_api/l_env.cpp
@@ -1035,7 +1035,7 @@ int ModApiEnvMod::l_fix_light(lua_State *L)
for (auto &modified_block : modified_blocks)
event.modified_blocks.insert(modified_block.first);
- map.dispatchEvent(&event);
+ map.dispatchEvent(event);
}
lua_pushboolean(L, success);
@@ -1144,7 +1144,7 @@ int ModApiEnvMod::l_delete_area(lua_State *L)
}
}
- map.dispatchEvent(&event);
+ map.dispatchEvent(event);
lua_pushboolean(L, success);
return 1;
}
diff --git a/src/script/lua_api/l_nodemeta.cpp b/src/script/lua_api/l_nodemeta.cpp
index 22fc61782..229ce73db 100644
--- a/src/script/lua_api/l_nodemeta.cpp
+++ b/src/script/lua_api/l_nodemeta.cpp
@@ -68,7 +68,7 @@ void NodeMetaRef::reportMetadataChange(const std::string *name)
event.type = MEET_BLOCK_NODE_METADATA_CHANGED;
event.p = m_p;
event.is_private_change = name && meta && meta->isPrivate(*name);
- m_env->getMap().dispatchEvent(&event);
+ m_env->getMap().dispatchEvent(event);
}
// Exported functions
diff --git a/src/script/lua_api/l_vmanip.cpp b/src/script/lua_api/l_vmanip.cpp
index c92983bd3..fd73d21d1 100644
--- a/src/script/lua_api/l_vmanip.cpp
+++ b/src/script/lua_api/l_vmanip.cpp
@@ -126,7 +126,7 @@ int LuaVoxelManip::l_write_to_map(lua_State *L)
for (const auto &modified_block : o->modified_blocks)
event.modified_blocks.insert(modified_block.first);
- map->dispatchEvent(&event);
+ map->dispatchEvent(event);
o->modified_blocks.clear();
return 0;
diff --git a/src/server.cpp b/src/server.cpp
index c0ed02b9f..0e677199a 100644
--- a/src/server.cpp
+++ b/src/server.cpp
@@ -306,6 +306,11 @@ Server::~Server()
for (auto &detached_inventory : m_detached_inventories) {
delete detached_inventory.second;
}
+
+ while (!m_unsent_map_edit_queue.empty()) {
+ delete m_unsent_map_edit_queue.front();
+ m_unsent_map_edit_queue.pop();
+ }
}
void Server::init()
@@ -1090,12 +1095,12 @@ void Server::setTimeOfDay(u32 time)
m_time_of_day_send_timer = 0;
}
-void Server::onMapEditEvent(MapEditEvent *event)
+void Server::onMapEditEvent(const MapEditEvent &event)
{
- if (m_ignore_map_edit_events_area.contains(event->getArea()))
+ if (m_ignore_map_edit_events_area.contains(event.getArea()))
return;
- MapEditEvent *e = event->clone();
- m_unsent_map_edit_queue.push(e);
+
+ m_unsent_map_edit_queue.push(new MapEditEvent(event));
}
Inventory* Server::getInventory(const InventoryLocation &loc)
@@ -1160,7 +1165,7 @@ void Server::setInventoryModified(const InventoryLocation &loc)
MapEditEvent event;
event.type = MEET_BLOCK_NODE_METADATA_CHANGED;
event.p = loc.p;
- m_env->getMap().dispatchEvent(&event);
+ m_env->getMap().dispatchEvent(event);
}
break;
case InventoryLocation::DETACHED:
diff --git a/src/server.h b/src/server.h
index f01733179..d61840871 100644
--- a/src/server.h
+++ b/src/server.h
@@ -189,7 +189,7 @@ public:
This is accessed by the map, which is inside the environment,
so it shouldn't be a problem.
*/
- void onMapEditEvent(MapEditEvent *event);
+ void onMapEditEvent(const MapEditEvent &event);
/*
Shall be called with the environment and the connection locked.