C++ ListRemove函数代码示例

void CClientObjectManager::RemoveFromLists ( CClientObject* pObject )
{
    if ( m_bCanRemoveFromList )
    {
        ListRemove ( m_Objects, pObject );
    }
    ListRemove ( m_StreamedIn, pObject );
}

void CSocketManager::SocketRemove(CSocket*& pSocket)
{
    ListRemove(vecSockets, pSocket);
    ListRemove(processQueue, pSocket);
    pSocket->CloseSocketWithEvent();
    ListRemove(deleteList, pSocket);
    deleteList.push_back(pSocket);
}

/* Scheduler function
 * First check the urgentQueue, if there is something
 * in it then we remove it from the list and release the
 * semaphore for it.
 * If first check doesnt go through we do the exact same check
 * for the enterQueue list & semaphore
 * else we release the lock so if anything enters it goes right
 * ahead. */
void schedule(){
  if(ListCount(urgentQueue) > 0){
    ListRemove(urgentQueue);
    V(urgentSem);
  }
  else if(ListCount(enterQueue) > 0){
    ListRemove(enterQueue);
    V(enterSem);
  }else{
    isLocked = 0;
  }
}

int coalesce(LIST *free_list, DATA *d)
{
	BLOCK *b1; BLOCK *b2;
	
	/* Cursor is after free block just freed */
	b2 = ListCurr(free_list);
	b1 = ListPrev(free_list);
	
	/* Cursor is on free block just freed */
	
	/* Fringe case, free memory is at front of free list.
	 * Make b2 the coalesed node and delete b1.
	 */
	if (b1 == NULL)
	{
		b1 = b2;
		b2 = ListNext(free_list);
		if (b1->size + b1->address == b2->address)
		{
			b2->size = b2->size + b1->size;
			b2->address = b2->address - b1->size;
			ListPrev(free_list);
			ListRemove(free_list);
			d->operations_performed++;
			return 1;
		}
		return 0;
	}
	else
	{
		/* Nodes are never inserted at the end of the list,
		 * so the only case is if the new free node has two
		 * adjacent nodes.
		 */
		while (b1 != NULL) {
			if ((b1->address + b1->size == b2->address))
			{
				b2->address = b1->address;
				b2->size = b1->size + b2->size;
			
				/* Next node has all block data, cur node is
				junk */
				ListRemove(free_list);
				d->operations_performed++;
			}
			b2 = ListCurr(free_list);
			b1 = ListPrev(free_list);
		}
		
		return 1;
	}
	return -1;
}

/**
 * Process an incoming pubrel packet for a socket
 * @param pack pointer to the publish packet
 * @param sock the socket on which the packet was received
 * @return completion code
 */
int MQTTProtocol_handlePubrels(void* pack, int sock)
{
	Pubrel* pubrel = (Pubrel*)pack;
	Clients* client = NULL;
	int rc = TCPSOCKET_COMPLETE;

	FUNC_ENTRY;
	client = (Clients*)(ListFindItem(bstate->clients, &sock, clientSocketCompare)->content);
	Log(LOG_PROTOCOL, 17, NULL, sock, client->clientID, pubrel->msgId);

	/* look for the message by message id in the records of inbound messages for this client */
	if (ListFindItem(client->inboundMsgs, &(pubrel->msgId), messageIDCompare) == NULL)
	{
		if (pubrel->header.bits.dup == 0)
			Log(TRACE_MIN, 3, NULL, "PUBREL", client->clientID, pubrel->msgId);
		else
			/* Apparently this is "normal" behaviour, so we don't need to issue a warning */
			rc = MQTTPacket_send_pubcomp(pubrel->msgId, &client->net, client->clientID);
	}
	else
	{
		Messages* m = (Messages*)(client->inboundMsgs->current->content);
		if (m->qos != 2)
			Log(TRACE_MIN, 4, NULL, "PUBREL", client->clientID, pubrel->msgId, m->qos);
		else if (m->nextMessageType != PUBREL)
			Log(TRACE_MIN, 5, NULL, "PUBREL", client->clientID, pubrel->msgId);
		else
		{
			Publish publish;

			/* send pubcomp before processing the publications because a lot of return publications could fill up the socket buffer */
			rc = MQTTPacket_send_pubcomp(pubrel->msgId, &client->net, client->clientID);
			publish.header.bits.qos = m->qos;
			publish.header.bits.retain = m->retain;
			publish.msgId = m->msgid;
			publish.topic = m->publish->topic;
			publish.topiclen = m->publish->topiclen;
			publish.payload = m->publish->payload;
			publish.payloadlen = m->publish->payloadlen;
			Protocol_processPublication(&publish, client);
			#if !defined(NO_PERSISTENCE)
				rc += MQTTPersistence_remove(client, PERSISTENCE_PUBLISH_RECEIVED, m->qos, pubrel->msgId);
			#endif
			ListRemove(&(state.publications), m->publish);
			ListRemove(client->inboundMsgs, m);
			++(state.msgs_received);
		}
	}
	free(pack);
	FUNC_EXIT_RC(rc);
	return rc;
}

/**
 * See if any pending writes have been completed, and cleanup if so.
 * Cleaning up means removing any publication data that was stored because the write did
 * not originally complete.
 */
void MQTTProtocol_checkPendingWrites()
{
	FUNC_ENTRY;
	if (state.pending_writes.count > 0)
	{
		ListElement* le = state.pending_writes.first;
		while (le)
		{
			pending_write* pw = (pending_write*)(le->content);
			if (Socket_noPendingWrites(pw->socket))
			{
				Clients* client = pw->client;

				MQTTProtocol_removePublication(pw->p);
				state.pending_writes.current = le;
				ListRemove(&(state.pending_writes), le->content); /* does NextElement itself */
				le = state.pending_writes.current;
				/* now we might be able to write the next message in the queue */
				MQTTProtocol_processQueued(client);
			}
			else
				ListNextElement(&(state.pending_writes), &le);
		}
	}
	FUNC_EXIT;
}

/**
 * Process an incoming puback packet for a socket
 * @param pack pointer to the publish packet
 * @param sock the socket on which the packet was received
 * @return completion code
 */
int MQTTProtocol_handlePubacks(void* pack, int sock, Clients* client)
{
	Puback* puback = (Puback*)pack;
	//Clients* client = (Clients*)(TreeFind(bstate->clients, &sock)->content);
	int rc = TCPSOCKET_COMPLETE;

	FUNC_ENTRY;
	Log(LOG_PROTOCOL, 14, NULL, sock, client->clientID, puback->msgId);

	/* look for the message by message id in the records of outbound messages for this client */
	if (ListFindItem(client->outboundMsgs, &(puback->msgId), messageIDCompare) == NULL)
		Log(LOG_WARNING, 50, NULL, "PUBACK", client->clientID, puback->msgId);
	else
	{
		Messages* m = (Messages*)(client->outboundMsgs->current->content);
		if (m->qos != 1)
			Log(LOG_WARNING, 51, NULL, "PUBACK", client->clientID, puback->msgId, m->qos);
		else
		{
			Log(TRACE_MIN, 4, NULL, client->clientID, puback->msgId);
			++(bstate->msgs_sent);
			bstate->bytes_sent += m->publish->payloadlen;
			MQTTProtocol_removePublication(m->publish);
			ListRemove(client->outboundMsgs, m);
			/* now there is space in the inflight message queue we can process any queued messages */
			MQTTProtocol_processQueued(client);
		}
	}
	free(pack);
	FUNC_EXIT_RC(rc);
	return rc;
}

/**
 *  Continue any outstanding writes for a socket set
 *  @param pwset the set of sockets
 *  @return completion code
 */
int Socket_continueWrites(fd_set* pwset)
{
	int rc1 = 0;
	ListElement* curpending = s.write_pending->first;

	FUNC_ENTRY;
	while (curpending)
	{
		int socket = *(int*)(curpending->content);
		if (FD_ISSET(socket, pwset) && Socket_continueWrite(socket))
		{
			if (!SocketBuffer_writeComplete(socket))
				Log(LOG_SEVERE, -1, "Failed to remove pending write from socket buffer list");
			FD_CLR(socket, &(s.pending_wset));
			if (!ListRemove(s.write_pending, curpending->content))
			{
				Log(LOG_SEVERE, -1, "Failed to remove pending write from list");
				ListNextElement(s.write_pending, &curpending);
			}
			curpending = s.write_pending->current;
						
			if (writecomplete)
				(*writecomplete)(socket);
		}
		else
			ListNextElement(s.write_pending, &curpending);
	}
	FUNC_EXIT_RC(rc1);
	return rc1;
}

////////////////////////////////////////////////////
// 功能: 结束某一任务的媒体播放，并锁定媒体播放任务
// 输入:
// 输出:
// 返回:
// 说明:
////////////////////////////////////////////////////
void MediaTerminateLock(HANDLE htask)
{
	PMEDIA_OBJECT obj;
	PLIST list;
	
	kMutexWait(hMediaMutex);
	list = &MediaObjList;
	if(!ListEmpty(list))
	{
		// 获取正在音频任务节点
		obj = ListEntry(ListFirst(list), MEDIA_OBJECT, Link);
		
		if(obj->hTask == htask)
		{
			// 结束当前正在录放的音频任务
			obj->Cb.MediaClose(obj->Media, 1);
			obj->Cb.MediaDestroy(obj->Media);
			
			ListRemove(&obj->Link);
			HandleDestroy(obj->Header.Handle, MEDIA_MAGIC);
			if(obj->MediaInfo)
				kfree(obj->MediaInfo);
			kfree(obj);
		}
	}
}

void __cdecl CJabberProto::IbbReceiveThread(JABBER_IBB_TRANSFER *jibb)
{
    debugLogA("Thread started: type=ibb_recv");

    filetransfer *ft = jibb->ft;

    jibb->hEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
    jibb->bStreamClosed = FALSE;
    jibb->wPacketId = 0;
    jibb->dwTransferredSize = 0;
    jibb->state = JIBB_RECVING;

    WaitForSingleObject(jibb->hEvent, INFINITE);

    CloseHandle(jibb->hEvent);
    jibb->hEvent = NULL;

    if (jibb->state == JIBB_ERROR)
        m_ThreadInfo->send( XmlNodeIq(_T("set"), SerialNext(), jibb->dstJID) << XCHILDNS(_T("close"), JABBER_FEAT_IBB) << XATTR(_T("sid"), jibb->sid));

    if (jibb->bStreamClosed && jibb->dwTransferredSize == ft->dwExpectedRecvFileSize)
        jibb->state = JIBB_DONE;

    (this->*jibb->pfnFinal)((jibb->state==JIBB_DONE)?TRUE:FALSE, jibb->ft);
    jibb->ft = NULL;

    ListRemove(LIST_FTRECV, jibb->sid);

    JabberIbbFreeJibb(jibb);
}

void ListPurgeFree(HSLIST &hList)
{
	PLISTLINK lpCurr;

	while ((lpCurr = ListRemove(hList)) != INVALID_SLIST_PTR)
		SysFree(lpCurr);
}

/**
 * Process an incoming puback packet for a socket
 * @param pack pointer to the publish packet
 * @param sock the socket on which the packet was received
 * @return completion code
 */
int MQTTProtocol_handlePubacks(void* pack, int sock)
{
	Puback* puback = (Puback*)pack;
	Clients* client = NULL;
	int rc = TCPSOCKET_COMPLETE;

	FUNC_ENTRY;
	client = (Clients*)(ListFindItem(bstate->clients, &sock, clientSocketCompare)->content);
	Log(LOG_PROTOCOL, 14, NULL, sock, client->clientID, puback->msgId);

	/* look for the message by message id in the records of outbound messages for this client */
	if (ListFindItem(client->outboundMsgs, &(puback->msgId), messageIDCompare) == NULL)
		Log(TRACE_MIN, 3, NULL, "PUBACK", client->clientID, puback->msgId);
	else
	{
		Messages* m = (Messages*)(client->outboundMsgs->current->content);
		if (m->qos != 1)
			Log(TRACE_MIN, 4, NULL, "PUBACK", client->clientID, puback->msgId, m->qos);
		else
		{
			Log(TRACE_MIN, 6, NULL, "PUBACK", client->clientID, puback->msgId);
			#if !defined(NO_PERSISTENCE)
				rc = MQTTPersistence_remove(client, PERSISTENCE_PUBLISH_SENT, m->qos, puback->msgId);
			#endif
			MQTTProtocol_removePublication(m->publish);
			ListRemove(client->outboundMsgs, m);
		}
	}
	free(pack);
	FUNC_EXIT_RC(rc);
	return rc;
}

int MQTTSProtocol_handlePubacks(void* pack, int sock, char* clientAddr, Clients* client)
{
	int rc = 0;
	MQTTS_PubAck* puback = (MQTTS_PubAck*)pack;

	FUNC_ENTRY;
	Log(LOG_PROTOCOL, 57, NULL, sock, clientAddr, client ? client->clientID : "", puback->msgId);

	/* look for the message by message id in the records of outbound messages for this client */
	if (ListFindItem(client->outboundMsgs, &(puback->msgId), messageIDCompare) == NULL)
		Log(LOG_WARNING, 50, NULL, "PUBACK", client->clientID, puback->msgId);
	else
	{
		Messages* m = (Messages*)(client->outboundMsgs->current->content);
		if (m->qos != 1)
			Log(LOG_WARNING, 51, NULL, "PUBACK", client->clientID, puback->msgId, m->qos);
		else
		{
			Log(TRACE_MAX, 4, NULL, client->clientID, puback->msgId);
			MQTTProtocol_removePublication(m->publish);
			ListRemove(client->outboundMsgs, m);
			/* TODO: msgs counts */
			/* (++state.msgs_sent);*/
		}
	}
	MQTTSPacket_free_packet(pack);
	FUNC_EXIT_RC(rc);
	return rc;
}

///////////////////////////////////////////////////////////////
//
// CResourceFileDownloadManager::UpdatePendingDownloads
//
// Figure which download group should be running
//
///////////////////////////////////////////////////////////////
void CResourceFileDownloadManager::UpdatePendingDownloads()
{
    // Get download group to use
    int iGroup = INVALID_DOWNLOAD_PRIORITY_GROUP;
    if (!m_ActiveFileDownloadList.empty())
    {
        // Use active download group
        iGroup = std::max(iGroup, m_ActiveFileDownloadList[0]->GetDownloadPriorityGroup());
    }
    else
    {
        // If no resource files being downloaded, find highest pending download group
        for (auto pResourceFile : m_PendingFileDownloadList)
        {
            iGroup = std::max(iGroup, pResourceFile->GetDownloadPriorityGroup());
        }
    }

    // Start (or add to) matching group
    std::vector<CDownloadableResource*> pendingListCopy = m_PendingFileDownloadList;
    for (auto pResourceFile : pendingListCopy)
    {
        if (pResourceFile->GetDownloadPriorityGroup() == iGroup)
        {
            // Move to active list and begin download
            ListRemove(m_PendingFileDownloadList, pResourceFile);
            m_ActiveFileDownloadList.push_back(pResourceFile);
            BeginResourceFileDownload(pResourceFile, 0);
        }
    }
}

///////////////////////////////////////////////////////////////////////////
//
// CSimPlayerManager::RemoveSimPlayer
//
// Thread:              main
// CS should be locked: no
//
// Delete matching sim player object
//
///////////////////////////////////////////////////////////////////////////
void CSimPlayerManager::RemoveSimPlayer ( CPlayer* pPlayer )
{
    LockSimSystem ();     // Prevent any sim activity on the sync thread

    // Check
    assert ( pPlayer->m_pSimPlayer->m_pRealPlayer == pPlayer );
    CSimPlayer* pSim = pPlayer->m_pSimPlayer;

    // Uninterlnk
    pSim->m_pRealPlayer = NULL;
    pPlayer->m_pSimPlayer = NULL;

    // Move from lists
    MapRemove ( m_AllSimPlayerMap, pSim );
    MapRemove ( m_SocketSimMap, pSim->m_PlayerSocket );

    // Remove outgoing sim from all dist lists
    for ( std::set < CSimPlayer* > ::const_iterator iter = m_AllSimPlayerMap.begin () ; iter != m_AllSimPlayerMap.end (); ++iter )
    {
        CSimPlayer* pOtherSim = *iter;
        ListRemove ( pOtherSim->m_PuresyncSendListFlat, pSim );
        pOtherSim->m_bSendListChanged = true;
    }

    SAFE_DELETE( pSim );
    UnlockSimSystem ();
}