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Add global and per-peer queue limits

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This commit is contained in:
kwolekr 2013-02-14 18:32:56 -05:00
parent b9d8e59bbf
commit 3b7a445cd7
3 changed files with 48 additions and 26 deletions
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43
src/emerge.cpp
View File

@ -88,7 +88,10 @@ Mapgen *EmergeManager::getMapgen() {
}
bool EmergeManager::enqueueBlockEmerge(u16 peer_id, v3s16 p, bool allow_generate) { ///return false if adding failed, or queue full!
bool EmergeManager::enqueueBlockEmerge(u16 peer_id, v3s16 p, bool allow_generate) {
std::map<v3s16, BlockEmergeData *>::const_iterator iter;
BlockEmergeData *bedata;
u16 count;
u8 flags = 0;
if (allow_generate)
@ -103,14 +106,30 @@ bool EmergeManager::enqueueBlockEmerge(u16 peer_id, v3s16 p, bool allow_generate
{
JMutexAutoLock queuelock(queuemutex);
std::map<v3s16, u8>::const_iterator iter = blocks_enqueued.find(p);
count = blocks_enqueued.size();
u16 queuelimit_total = 256;
if (count >= queuelimit_total)
return false;
count = peer_queue_count[peer_id];
u16 queuelimit_peer = allow_generate ? 1 : 5;
if (count >= queuelimit_peer)
return false;
iter = blocks_enqueued.find(p);
if (iter != blocks_enqueued.end()) {
flags |= iter->second;
blocks_enqueued[p] = flags;
bedata = iter->second;
bedata->flags |= flags;
return true;
}
blocks_enqueued.insert(std::make_pair(p, flags));
bedata = new BlockEmergeData;
bedata->flags = flags;
bedata->peer_requested = peer_id;
blocks_enqueued.insert(std::make_pair(p, bedata));
peer_queue_count[peer_id] = count + 1;
emergethread->blockqueue.push(p);
}
emergethread->qevent.signal();
@ -120,6 +139,7 @@ bool EmergeManager::enqueueBlockEmerge(u16 peer_id, v3s16 p, bool allow_generate
bool EmergeManager::popBlockEmerge(v3s16 *pos, u8 *flags) {
std::map<v3s16, BlockEmergeData *>::iterator iter;
JMutexAutoLock queuelock(queuemutex);
if (emergethread->blockqueue.empty())
@ -129,11 +149,16 @@ bool EmergeManager::popBlockEmerge(v3s16 *pos, u8 *flags) {
*pos = p;
std::map<v3s16, u8>::iterator iter = blocks_enqueued.find(p);
if (iter == blocks_enqueued.end()) //uh oh, this isn't right!!!!!!!!!!!!!!!!!!
return false;
iter = blocks_enqueued.find(p);
if (iter == blocks_enqueued.end())
return false; //uh oh, queue and map out of sync!!
*flags = iter->second;
BlockEmergeData *bedata = iter->second;
*flags = bedata->flags;
peer_queue_count[bedata->peer_requested]--;
delete bedata;
blocks_enqueued.erase(iter);
return true;

18
src/emerge.h
View File

@ -14,8 +14,6 @@ class Biome;
class BiomeDefManager;
class EmergeThread;
class ManualMapVoxelManipulator;
//class ServerMap;
//class MapBlock;
#include "server.h"
@ -29,9 +27,6 @@ struct BlockMakeData {
UniqueQueue<v3s16> transforming_liquid;
INodeDefManager *nodedef;
// BlockMakeData();
// ~BlockMakeData();
BlockMakeData():
no_op(false),
vmanip(NULL),
@ -39,10 +34,12 @@ BlockMakeData():
nodedef(NULL)
{}
~BlockMakeData()
{
delete vmanip;
}
~BlockMakeData() { delete vmanip; }
};
struct BlockEmergeData {
u16 peer_requested;
u8 flags;
};
class EmergeManager {
@ -53,7 +50,8 @@ public:
MapgenParams *params;
JMutex queuemutex;
std::map<v3s16, u8> blocks_enqueued; //change to a hashtable later
std::map<v3s16, BlockEmergeData *> blocks_enqueued;
std::map<u16, u16> peer_queue_count;
Mapgen *mapgen;
EmergeThread *emergethread;

1
src/mapgen.h
View File

@ -26,7 +26,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "mapnode.h"
#include "noise.h"
#include "settings.h"
//#include "emerge.h"
#include <map>
/////////////////// Mapgen flags