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Clients are now ticked in cServer first, then in cWorld once they get assigned a world.

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This commit is contained in:
madmaxoft 2013-08-13 22:45:29 +02:00
parent 27d0c9aef2
commit 9020dc9932
10 changed files with 189 additions and 175 deletions
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86
source/Bindings.cpp
View File

@ -1,6 +1,6 @@
/*
** Lua binding: AllToLua
** Generated automatically by tolua++-1.0.92 on 08/12/13 08:16:46.
** Generated automatically by tolua++-1.0.92 on 08/12/13 21:48:05.
*/
#ifndef __cplusplus
@ -8237,40 +8237,6 @@ static int tolua_AllToLua_Lua__cEntity_cEntity__IsRclking00(lua_State* tolua_S)
}
#endif //#ifndef TOLUA_DISABLE
/* method: Initialize of class cPlayer */
#ifndef TOLUA_DISABLE_tolua_AllToLua_cPlayer_Initialize00
static int tolua_AllToLua_cPlayer_Initialize00(lua_State* tolua_S)
{
#ifndef TOLUA_RELEASE
tolua_Error tolua_err;
if (
!tolua_isusertype(tolua_S,1,"cPlayer",0,&tolua_err) ||
!tolua_isusertype(tolua_S,2,"cWorld",0,&tolua_err) ||
!tolua_isnoobj(tolua_S,3,&tolua_err)
)
goto tolua_lerror;
else
#endif
{
cPlayer* self = (cPlayer*) tolua_tousertype(tolua_S,1,0);
cWorld* a_World = ((cWorld*) tolua_tousertype(tolua_S,2,0));
#ifndef TOLUA_RELEASE
if (!self) tolua_error(tolua_S,"invalid 'self' in function 'Initialize'", NULL);
#endif
{
bool tolua_ret = (bool) self->Initialize(a_World);
tolua_pushboolean(tolua_S,(bool)tolua_ret);
}
}
return 1;
#ifndef TOLUA_RELEASE
tolua_lerror:
tolua_error(tolua_S,"#ferror in function 'Initialize'.",&tolua_err);
return 0;
#endif
}
#endif //#ifndef TOLUA_DISABLE
/* method: GetEyeHeight of class cPlayer */
#ifndef TOLUA_DISABLE_tolua_AllToLua_cPlayer_GetEyeHeight00
static int tolua_AllToLua_cPlayer_GetEyeHeight00(lua_State* tolua_S)
@ -10186,17 +10152,6 @@ static int tolua_AllToLua_cPlayer_IsSubmerged00(lua_State* tolua_S)
class Lua__cPlayer : public cPlayer, public ToluaBase {
public:
bool Initialize( cWorld* a_World) {
if (push_method("Initialize", tolua_AllToLua_cPlayer_Initialize00)) {
tolua_pushusertype(lua_state, (void*)a_World, "cWorld");
ToluaBase::dbcall(lua_state, 2, 1);
bool tolua_ret = ( bool )tolua_toboolean(lua_state, -1, 0);
lua_pop(lua_state, 1);
return tolua_ret;
} else {
return ( bool ) cPlayer:: Initialize(a_World);
};
};
void MoveTo( const Vector3d& a_NewPos) {
if (push_method("MoveTo", tolua_AllToLua_cPlayer_MoveTo00)) {
tolua_pushusertype(lua_state, (void*)&a_NewPos, "const Vector3d");
@ -10418,9 +10373,6 @@ public:
};
};
bool cPlayer__Initialize( cWorld* a_World) {
return ( bool )cPlayer::Initialize(a_World);
};
void cPlayer__MoveTo( const Vector3d& a_NewPos) {
return ( void )cPlayer::MoveTo(a_NewPos);
};
@ -10522,40 +10474,6 @@ static int tolua_AllToLua_Lua__cPlayer_tolua__set_instance00(lua_State* tolua_S)
}
#endif //#ifndef TOLUA_DISABLE
/* method: cPlayer__Initialize of class Lua__cPlayer */
#ifndef TOLUA_DISABLE_tolua_AllToLua_Lua__cPlayer_cPlayer__Initialize00
static int tolua_AllToLua_Lua__cPlayer_cPlayer__Initialize00(lua_State* tolua_S)
{
#ifndef TOLUA_RELEASE
tolua_Error tolua_err;
if (
!tolua_isusertype(tolua_S,1,"Lua__cPlayer",0,&tolua_err) ||
!tolua_isusertype(tolua_S,2,"cWorld",0,&tolua_err) ||
!tolua_isnoobj(tolua_S,3,&tolua_err)
)
goto tolua_lerror;
else
#endif
{
Lua__cPlayer* self = (Lua__cPlayer*) tolua_tousertype(tolua_S,1,0);
cWorld* a_World = ((cWorld*) tolua_tousertype(tolua_S,2,0));
#ifndef TOLUA_RELEASE
if (!self) tolua_error(tolua_S,"invalid 'self' in function 'cPlayer__Initialize'", NULL);
#endif
{
bool tolua_ret = (bool) self->cPlayer__Initialize(a_World);
tolua_pushboolean(tolua_S,(bool)tolua_ret);
}
}
return 1;
#ifndef TOLUA_RELEASE
tolua_lerror:
tolua_error(tolua_S,"#ferror in function 'cPlayer__Initialize'.",&tolua_err);
return 0;
#endif
}
#endif //#ifndef TOLUA_DISABLE
/* method: cPlayer__MoveTo of class Lua__cPlayer */
#ifndef TOLUA_DISABLE_tolua_AllToLua_Lua__cPlayer_cPlayer__MoveTo00
static int tolua_AllToLua_Lua__cPlayer_cPlayer__MoveTo00(lua_State* tolua_S)
@ -29625,7 +29543,6 @@ TOLUA_API int tolua_AllToLua_open (lua_State* tolua_S)
tolua_constant(tolua_S,"EATING_TICKS",cPlayer::EATING_TICKS);
tolua_constant(tolua_S,"MAX_AIR_LEVEL",cPlayer::MAX_AIR_LEVEL);
tolua_constant(tolua_S,"DROWNING_TICKS",cPlayer::DROWNING_TICKS);
tolua_function(tolua_S,"Initialize",tolua_AllToLua_cPlayer_Initialize00);
tolua_function(tolua_S,"GetEyeHeight",tolua_AllToLua_cPlayer_GetEyeHeight00);
tolua_function(tolua_S,"GetEyePosition",tolua_AllToLua_cPlayer_GetEyePosition00);
tolua_function(tolua_S,"IsOnGround",tolua_AllToLua_cPlayer_IsOnGround00);
@ -29688,7 +29605,6 @@ TOLUA_API int tolua_AllToLua_open (lua_State* tolua_S)
tolua_cclass(tolua_S,"Lua__cPlayer","Lua__cPlayer","cPlayer",NULL);
tolua_beginmodule(tolua_S,"Lua__cPlayer");
tolua_function(tolua_S,"tolua__set_instance",tolua_AllToLua_Lua__cPlayer_tolua__set_instance00);
tolua_function(tolua_S,"cPlayer__Initialize",tolua_AllToLua_Lua__cPlayer_cPlayer__Initialize00);
tolua_function(tolua_S,"cPlayer__MoveTo",tolua_AllToLua_Lua__cPlayer_cPlayer__MoveTo00);
tolua_function(tolua_S,"cPlayer__IsSwimming",tolua_AllToLua_Lua__cPlayer_cPlayer__IsSwimming00);
tolua_function(tolua_S,"cPlayer__IsSubmerged",tolua_AllToLua_Lua__cPlayer_cPlayer__IsSubmerged00);

2
source/Bindings.h
View File

@ -1,6 +1,6 @@
/*
** Lua binding: AllToLua
** Generated automatically by tolua++-1.0.92 on 08/12/13 08:16:46.
** Generated automatically by tolua++-1.0.92 on 08/12/13 21:48:06.
*/
/* Exported function */

63
source/ClientHandle.cpp
View File

@ -170,13 +170,21 @@ cClientHandle::~cClientHandle()
void cClientHandle::Destroy()
void cClientHandle::Destroy(void)
{
// Setting m_bDestroyed was moved to the bottom of Destroy(),
// otherwise the destructor may be called within another thread before the client is removed from chunks
// http://forum.mc-server.org/showthread.php?tid=366
{
cCSLock Lock(m_CSDestroyingState);
if (m_State >= csDestroying)
{
// Already called
return;
}
m_State = csDestroying;
}
// DEBUG:
LOGD("%s: client %p, \"%s\"", __FUNCTION__, this, m_Username.c_str());
m_State = csDestroying;
if ((m_Player != NULL) && (m_Player->GetWorld() != NULL))
{
RemoveFromAllChunks();
@ -253,9 +261,8 @@ void cClientHandle::Authenticate(void)
SendGameMode(m_Player->GetGameMode());
m_Player->Initialize(World);
StreamChunks();
m_State = csDownloadingWorld;
m_State = csAuthenticated;
// Broadcast this player's spawning to all other players in the same chunk
m_Player->GetWorld()->BroadcastSpawnEntity(*m_Player, this);
@ -1342,6 +1349,20 @@ bool cClientHandle::CheckBlockInteractionsRate(void)
void cClientHandle::Tick(float a_Dt)
{
// Process received network data:
AString IncomingData;
{
cCSLock Lock(m_CSIncomingData);
std::swap(IncomingData, m_IncomingData);
}
m_Protocol->DataReceived(IncomingData.data(), IncomingData.size());
if (m_State == csAuthenticated)
{
StreamChunks();
m_State = csDownloadingWorld;
}
m_TimeSinceLastPacket += a_Dt;
if (m_TimeSinceLastPacket > 30000.f) // 30 seconds time-out
{
@ -2118,30 +2139,10 @@ void cClientHandle::PacketError(unsigned char a_PacketType)
void cClientHandle::DataReceived(const char * a_Data, int a_Size)
{
// Data is received from the client, hand it off to the protocol:
if ((m_Player != NULL) && (m_Player->GetWorld() != NULL))
{
/*
_X: Lock the world, so that plugins reacting to protocol events have already the chunkmap locked.
There was a possibility of a deadlock between SocketThreads and TickThreads, resulting from each
holding one CS an requesting the other one (ChunkMap CS vs Plugin CS) (FS #375). To break this, it's
sufficient to break any of the four Coffman conditions for a deadlock. We'll solve this by requiring
the ChunkMap CS for all SocketThreads operations before they lock the PluginCS - thus creating a kind
of a lock hierarchy. However, this incurs a performance penalty, we're de facto locking the chunkmap
for each incoming packet. A better, but more involved solutin would be to lock the chunkmap only when
the incoming packet really has a plugin CS lock request.
Also, it is still possible for a packet to slip through - when a player still doesn't have their world
assigned and several packets arrive at once.
*/
cWorld::cLock(*m_Player->GetWorld());
m_Protocol->DataReceived(a_Data, a_Size);
}
else
{
m_Protocol->DataReceived(a_Data, a_Size);
}
// Data is received from the client, store it in the buffer to be processed by the Tick thread:
m_TimeSinceLastPacket = 0;
cCSLock Lock(m_CSIncomingData);
m_IncomingData.append(a_Data, a_Size);
}

25
source/ClientHandle.h
View File

@ -212,11 +212,12 @@ private:
cProtocol * m_Protocol;
cCriticalSection m_CSIncomingData;
AString m_IncomingData;
cCriticalSection m_CSOutgoingData;
cByteBuffer m_OutgoingData;
AString m_OutgoingDataOverflow; //< For data that didn't fit into the m_OutgoingData ringbuffer temporarily
cCriticalSection m_CriticalSection;
AString m_OutgoingDataOverflow; ///< For data that didn't fit into the m_OutgoingData ringbuffer temporarily
Vector3d m_ConfirmPosition;
@ -252,18 +253,22 @@ private:
enum eState
{
csConnected, // The client has just connected, waiting for their handshake / login
csAuthenticating, // The client has logged in, waiting for external authentication
csDownloadingWorld, // The client is waiting for chunks, we're waiting for the loader to provide and send them
csConfirmingPos, // The client has been sent the position packet, waiting for them to repeat the position back
csPlaying, // Normal gameplay
csDestroying, // The client is being destroyed, don't queue any more packets / don't add to chunks
csDestroyed, // The client has been destroyed, the destructor is to be called from the owner thread
csConnected, ///< The client has just connected, waiting for their handshake / login
csAuthenticating, ///< The client has logged in, waiting for external authentication
csAuthenticated, ///< The client has been authenticated, will start streaming chunks in the next tick
csDownloadingWorld, ///< The client is waiting for chunks, we're waiting for the loader to provide and send them
csConfirmingPos, ///< The client has been sent the position packet, waiting for them to repeat the position back
csPlaying, ///< Normal gameplay
csDestroying, ///< The client is being destroyed, don't queue any more packets / don't add to chunks
csDestroyed, ///< The client has been destroyed, the destructor is to be called from the owner thread
// TODO: Add Kicking here as well
} ;
eState m_State;
/// m_State needs to be locked in the Destroy() function so that the destruction code doesn't run twice on two different threads
cCriticalSection m_CSDestroyingState;
bool m_bKeepThreadGoing;

34
source/Player.cpp
View File

@ -127,6 +127,8 @@ cPlayer::~cPlayer(void)
bool cPlayer::Initialize(cWorld * a_World)
{
ASSERT(a_World != NULL);
if (super::Initialize(a_World))
{
// Remove the client handle from the server, it will be ticked from this object from now on
@ -148,6 +150,7 @@ bool cPlayer::Initialize(cWorld * a_World)
void cPlayer::Destroyed()
{
CloseWindow(false);
m_ClientHandle = NULL;
}
@ -157,22 +160,17 @@ void cPlayer::Destroyed()
void cPlayer::SpawnOn(cClientHandle & a_Client)
{
/*
LOGD("cPlayer::SpawnOn(%s) for \"%s\" at pos {%.2f, %.2f, %.2f}",
a_Client.GetUsername().c_str(), m_PlayerName.c_str(), m_Pos.x, m_Pos.y, m_Pos.z
);
*/
if (m_bVisible && (m_ClientHandle != (&a_Client)))
if (!m_bVisible || (m_ClientHandle == (&a_Client)))
{
a_Client.SendPlayerSpawn(*this);
a_Client.SendEntityHeadLook(*this);
a_Client.SendEntityEquipment(*this, 0, m_Inventory.GetEquippedItem() );
a_Client.SendEntityEquipment(*this, 1, m_Inventory.GetEquippedBoots() );
a_Client.SendEntityEquipment(*this, 2, m_Inventory.GetEquippedLeggings() );
a_Client.SendEntityEquipment(*this, 3, m_Inventory.GetEquippedChestplate() );
a_Client.SendEntityEquipment(*this, 4, m_Inventory.GetEquippedHelmet() );
return;
}
a_Client.SendPlayerSpawn(*this);
a_Client.SendEntityHeadLook(*this);
a_Client.SendEntityEquipment(*this, 0, m_Inventory.GetEquippedItem() );
a_Client.SendEntityEquipment(*this, 1, m_Inventory.GetEquippedBoots() );
a_Client.SendEntityEquipment(*this, 2, m_Inventory.GetEquippedLeggings() );
a_Client.SendEntityEquipment(*this, 3, m_Inventory.GetEquippedChestplate() );
a_Client.SendEntityEquipment(*this, 4, m_Inventory.GetEquippedHelmet() );
}
@ -183,12 +181,18 @@ void cPlayer::Tick(float a_Dt, cChunk & a_Chunk)
{
if (m_ClientHandle != NULL)
{
if (m_ClientHandle->IsDestroyed())
{
// This should not happen, because destroying a client will remove it from the world, but just in case
m_ClientHandle = NULL;
return;
}
if (!m_ClientHandle->IsPlaying())
{
// We're not yet in the game, ignore everything
return;
}
m_ClientHandle->Tick(a_Dt);
}
super::Tick(a_Dt, a_Chunk);

2
source/Player.h
View File

@ -40,7 +40,7 @@ public:
cPlayer(cClientHandle * a_Client, const AString & a_PlayerName);
virtual ~cPlayer();
virtual bool Initialize(cWorld * a_World); // tolua_export
virtual bool Initialize(cWorld * a_World) override;
virtual void SpawnOn(cClientHandle & a_Client) override;

62
source/Server.cpp
View File

@ -165,7 +165,7 @@ void cServer::RemoveClient(const cClientHandle * a_Client)
void cServer::ClientMovedToWorld(const cClientHandle * a_Client)
{
cCSLock Lock(m_CSClients);
m_Clients.remove(const_cast<cClientHandle *>(a_Client));
m_ClientsToRemove.push_back(const_cast<cClientHandle *>(a_Client));
}
@ -312,25 +312,7 @@ bool cServer::Tick(float a_Dt)
{
cRoot::Get()->TickCommands();
cClientHandleList RemoveClients;
{
cCSLock Lock(m_CSClients);
for (cClientHandleList::iterator itr = m_Clients.begin(); itr != m_Clients.end();)
{
if ((*itr)->IsDestroyed())
{
RemoveClients.push_back(*itr); // Remove the client later, when CS is not held, to avoid deadlock ( http://forum.mc-server.org/showthread.php?tid=374 )
itr = m_Clients.erase(itr);
continue;
}
(*itr)->Tick(a_Dt);
++itr;
} // for itr - m_Clients[]
}
for (cClientHandleList::iterator itr = RemoveClients.begin(); itr != RemoveClients.end(); ++itr)
{
delete *itr;
} // for itr - RemoveClients[]
TickClients(a_Dt);
if (!m_bRestarting)
{
@ -348,6 +330,45 @@ bool cServer::Tick(float a_Dt)
void cServer::TickClients(float a_Dt)
{
cClientHandleList RemoveClients;
{
cCSLock Lock(m_CSClients);
// Remove clients that have moved to a world (the world will be ticking them from now on)
for (cClientHandleList::const_iterator itr = m_ClientsToRemove.begin(), end = m_ClientsToRemove.end(); itr != end; ++itr)
{
m_Clients.remove(*itr);
} // for itr - m_ClientsToRemove[]
m_ClientsToRemove.clear();
// Tick the remaining clients, take out those that have been destroyed into RemoveClients
for (cClientHandleList::iterator itr = m_Clients.begin(); itr != m_Clients.end();)
{
if ((*itr)->IsDestroyed())
{
// Remove the client later, when CS is not held, to avoid deadlock ( http://forum.mc-server.org/showthread.php?tid=374 )
RemoveClients.push_back(*itr);
itr = m_Clients.erase(itr);
continue;
}
(*itr)->Tick(a_Dt);
++itr;
} // for itr - m_Clients[]
}
// Delete the clients that have been destroyed
for (cClientHandleList::iterator itr = RemoveClients.begin(); itr != RemoveClients.end(); ++itr)
{
delete *itr;
} // for itr - RemoveClients[]
}
bool cServer::Start(void)
{
if (!m_ListenThreadIPv4.Start())
@ -492,6 +513,7 @@ void cServer::AuthenticateUser(int a_ClientID)
if ((*itr)->GetUniqueID() == a_ClientID)
{
(*itr)->Authenticate();
return;
}
} // for itr - m_Clients[]
}

8
source/Server.h
View File

@ -131,8 +131,9 @@ private:
cListenThread m_ListenThreadIPv4;
cListenThread m_ListenThreadIPv6;
cCriticalSection m_CSClients; ///< Locks client list
cClientHandleList m_Clients; ///< Clients that are connected to the server and not yet assigned to a cWorld
cCriticalSection m_CSClients; ///< Locks client lists
cClientHandleList m_Clients; ///< Clients that are connected to the server and not yet assigned to a cWorld
cClientHandleList m_ClientsToRemove; ///< Clients that have just been moved into a world and are to be removed from m_Clients in the next Tick()
cSocketThreads m_SocketThreads;
@ -164,6 +165,9 @@ private:
void PrepareKeys(void);
bool Tick(float a_Dt);
/// Ticks the clients in m_Clients, manages the list in respect to removing clients
void TickClients(float a_Dt);
// cListenThread::cCallback overrides:
virtual void OnConnectionAccepted(cSocket & a_Socket) override;

66
source/World.cpp
View File

@ -587,6 +587,7 @@ void cWorld::Tick(float a_Dt)
m_ChunkMap->Tick(a_Dt);
TickClients(a_Dt);
TickQueuedBlocks(a_Dt);
TickQueuedTasks();
@ -811,6 +812,37 @@ void cWorld::TickQueuedTasks(void)
void cWorld::TickClients(float a_Dt)
{
cClientHandleList RemoveClients;
{
cCSLock Lock(m_CSClients);
// Tick the clients, take out those that have been destroyed into RemoveClients
for (cClientHandleList::iterator itr = m_Clients.begin(); itr != m_Clients.end();)
{
if ((*itr)->IsDestroyed())
{
// Remove the client later, when CS is not held, to avoid deadlock
RemoveClients.push_back(*itr);
itr = m_Clients.erase(itr);
continue;
}
(*itr)->Tick(a_Dt);
++itr;
} // for itr - m_Clients[]
}
// Delete the clients that have been destroyed
for (cClientHandleList::iterator itr = RemoveClients.begin(); itr != RemoveClients.end(); ++itr)
{
delete *itr;
} // for itr - RemoveClients[]
}
void cWorld::WakeUpSimulators(int a_BlockX, int a_BlockY, int a_BlockZ)
{
return m_ChunkMap->WakeUpSimulators(a_BlockX, a_BlockY, a_BlockZ);
@ -1973,13 +2005,22 @@ void cWorld::CollectPickupsByPlayer(cPlayer * a_Player)
void cWorld::AddPlayer(cPlayer * a_Player)
{
cCSLock Lock(m_CSPlayers);
ASSERT(std::find(m_Players.begin(), m_Players.end(), a_Player) == m_Players.end()); // Is it already in the list? HOW?
m_Players.remove(a_Player); // Make sure the player is registered only once
m_Players.push_back(a_Player);
{
cCSLock Lock(m_CSPlayers);
ASSERT(std::find(m_Players.begin(), m_Players.end(), a_Player) == m_Players.end()); // Is it already in the list? HOW?
m_Players.remove(a_Player); // Make sure the player is registered only once
m_Players.push_back(a_Player);
}
// Add the player's client to the list of clients to be ticked:
if (a_Player->GetClientHandle() != NULL)
{
cCSLock Lock(m_CSClients);
m_Clients.push_back(a_Player->GetClientHandle());
}
// The player has already been added to the chunkmap as the entity, do NOT add again!
}
@ -1990,8 +2031,17 @@ void cWorld::AddPlayer(cPlayer * a_Player)
void cWorld::RemovePlayer(cPlayer * a_Player)
{
m_ChunkMap->RemoveEntity(a_Player);
cCSLock Lock(m_CSPlayers);
m_Players.remove(a_Player);
{
cCSLock Lock(m_CSPlayers);
m_Players.remove(a_Player);
}
// Remove the player's client from the list of clients to be ticked:
if (a_Player->GetClientHandle() != NULL)
{
cCSLock Lock(m_CSClients);
m_Clients.remove(a_Player->GetClientHandle());
}
}

16
source/World.h
View File

@ -660,6 +660,12 @@ private:
/// Tasks that have been queued onto the tick thread; guarded by m_CSTasks
cTasks m_Tasks;
/// Guards m_Clients
cCriticalSection m_CSClients;
/// List of clients in this world, these will be ticked by this world
cClientHandleList m_Clients;
cWorld(const AString & a_WorldName);
@ -667,12 +673,18 @@ private:
void Tick(float a_Dt);
void TickWeather(float a_Dt); // Handles weather each tick
void TickSpawnMobs(float a_Dt); // Handles mob spawning each tick
/// Handles the weather in each tick
void TickWeather(float a_Dt);
/// Handles the mob spawning each tick
void TickSpawnMobs(float a_Dt);
/// Executes all tasks queued onto the tick thread
void TickQueuedTasks(void);
/// Ticks all clients that are in this world
void TickClients(float a_Dt);
/// Creates a new fluid simulator, loads its settings from the inifile (a_FluidName section)
cFluidSimulator * InitializeFluidSimulator(cIniFile & a_IniFile, const char * a_FluidName, BLOCKTYPE a_SimulateBlock, BLOCKTYPE a_StationaryBlock);
}; // tolua_export