我试图运行一个程序。 当我随意做事时，核心崩溃了。
这是gdb：
x08145c75 in CPacketInfo::Set (this=<value optimized out>,
header=<value optimized out>, bSeq=<value optimized out>)
at packet_info.cpp:24
iSize = Cannot access memory at address 0x0
提到的代码行：
TPacketElement * element = M2_NEW TPacketElement;
整个packet_info.cpp
#include "stdafx.h"
#include "../../common/stl.h"
#include "constants.h"
#include "packet_info.h"
CPacketInfo::CPacketInfo()
: m_pCurrentPacket(NULL), m_dwStartTime(0)
{
}
CPacketInfo::~CPacketInfo()
{
auto it = m_pPacketMap.begin();
for ( ; it != m_pPacketMap.end(); ++it) {
M2_DELETE(it->second);
}
}
void CPacketInfo::Set(int header, int iSize, const char * c_pszName, bool bSeq)
{
if (m_pPacketMap.find(header) != m_pPacketMap.end())
return;
TPacketElement * element = M2_NEW TPacketElement;
element->iSize = iSize;
element->stName.assign(c_pszName);
element->iCalled = 0;
element->dwLoad = 0;
element->bSequencePacket = bSeq;
if (element->bSequencePacket)
element->iSize += sizeof(BYTE);
m_pPacketMap.insert(std::map<int, TPacketElement *>::value_type(header, element));
}
bool CPacketInfo::Get(int header, int * size, const char ** c_ppszName)
{
auto it = m_pPacketMap.find(header);
if (it == m_pPacketMap.end())
return false;
*size = it->second->iSize;
*c_ppszName = it->second->stName.c_str();
m_pCurrentPacket = it->second;
return true;
}
bool CPacketInfo::IsSequence(int header)
{
TPacketElement * pkElement = GetElement(header);
return pkElement ? pkElement->bSequencePacket : false;
}
void CPacketInfo::SetSequence(int header, bool bSeq)
{
TPacketElement * pkElem = GetElement(header);
if (pkElem)
{
if (bSeq)
{
if (!pkElem->bSequencePacket)
pkElem->iSize++;
}
else
{
if (pkElem->bSequencePacket)
pkElem->iSize--;
}
pkElem->bSequencePacket = bSeq;
}
}
TPacketElement * CPacketInfo::GetElement(int header)
{
auto it = m_pPacketMap.find(header);
if (it == m_pPacketMap.end())
return NULL;
return it->second;
}
void CPacketInfo::Start()
{
assert(m_pCurrentPacket != NULL);
m_dwStartTime = get_dword_time();
}
void CPacketInfo::End()
{
++m_pCurrentPacket->iCalled;
m_pCurrentPacket->dwLoad += get_dword_time() - m_dwStartTime;
}
void CPacketInfo::Log(const char * c_pszFileName)
{
FILE * fp;
fp = fopen(c_pszFileName, "w");
if (!fp)
return;
auto it = m_pPacketMap.begin();
fprintf(fp, "Name Called Load Ratio\n");
while (it != m_pPacketMap.end())
{
TPacketElement * p = it->second;
++it;
fprintf(fp, "%-16s %-10d %-10u %.2f\n",
p->stName.c_str(),
p->iCalled,
p->dwLoad,
p->iCalled != 0 ? (float) p->dwLoad / p->iCalled : 0.0f);
}
fclose(fp);
}
///---------------------------------------------------------
CPacketInfoCG::CPacketInfoCG()
{
Set(HEADER_CG_TEXT, sizeof(TPacketCGText), "Text", false);
Set(HEADER_CG_HANDSHAKE, sizeof(TPacketCGHandshake), "Handshake", false);
Set(HEADER_CG_TIME_SYNC, sizeof(TPacketCGHandshake), "TimeSync", true);
Set(HEADER_CG_MARK_LOGIN, sizeof(TPacketCGMarkLogin), "MarkLogin", false);
Set(HEADER_CG_MARK_IDXLIST, sizeof(TPacketCGMarkIDXList), "MarkIdxList", false);
Set(HEADER_CG_MARK_CRCLIST, sizeof(TPacketCGMarkCRCList), "MarkCrcList", false);
Set(HEADER_CG_MARK_UPLOAD, sizeof(TPacketCGMarkUpload), "MarkUpload", false);
Set(HEADER_CG_GUILD_SYMBOL_UPLOAD, sizeof(TPacketCGGuildSymbolUpload), "SymbolUpload", false);
Set(HEADER_CG_SYMBOL_CRC, sizeof(TPacketCGSymbolCRC), "SymbolCRC", false);
Set(HEADER_CG_LOGIN, sizeof(TPacketCGLogin), "Login", true);
Set(HEADER_CG_LOGIN2, sizeof(TPacketCGLogin2), "Login2", true);
Set(HEADER_CG_LOGIN3, sizeof(TPacketCGLogin3), "Login3", true);
Set(HEADER_CG_LOGIN5_OPENID, sizeof(TPacketCGLogin5), "Login5", true); //OpenID
Set(HEADER_CG_ATTACK, sizeof(TPacketCGAttack), "Attack", true);
Set(HEADER_CG_CHAT, sizeof(TPacketCGChat), "Chat", true);
Set(HEADER_CG_WHISPER, sizeof(TPacketCGWhisper), "Whisper", true);
Set(HEADER_CG_CHARACTER_SELECT, sizeof(TPacketCGPlayerSelect), "Select", true);
Set(HEADER_CG_CHARACTER_CREATE, sizeof(TPacketCGPlayerCreate), "Create", true);
Set(HEADER_CG_CHARACTER_DELETE, sizeof(TPacketCGPlayerDelete), "Delete", true);
Set(HEADER_CG_ENTERGAME, sizeof(TPacketCGEnterGame), "EnterGame", true);
Set(HEADER_CG_ITEM_USE, sizeof(TPacketCGItemUse), "ItemUse", true);
Set(HEADER_CG_ITEM_DROP, sizeof(TPacketCGItemDrop), "ItemDrop", true);
Set(HEADER_CG_ITEM_DROP2, sizeof(TPacketCGItemDrop2), "ItemDrop2", true);
Set(HEADER_CG_ITEM_MOVE, sizeof(TPacketCGItemMove), "ItemMove", true);
Set(HEADER_CG_ITEM_PICKUP, sizeof(TPacketCGItemPickup), "ItemPickup", true);
Set(HEADER_CG_QUICKSLOT_ADD, sizeof(TPacketCGQuickslotAdd), "QuickslotAdd", true);
Set(HEADER_CG_QUICKSLOT_DEL, sizeof(TPacketCGQuickslotDel), "QuickslotDel", true);
Set(HEADER_CG_QUICKSLOT_SWAP, sizeof(TPacketCGQuickslotSwap), "QuickslotSwap", true);
Set(HEADER_CG_SHOP, sizeof(TPacketCGShop), "Shop", true);
Set(HEADER_CG_ON_CLICK, sizeof(TPacketCGOnClick), "OnClick", true);
Set(HEADER_CG_EXCHANGE, sizeof(TPacketCGExchange), "Exchange", true);
Set(HEADER_CG_CHARACTER_POSITION, sizeof(TPacketCGPosition), "Position", true);
Set(HEADER_CG_SCRIPT_ANSWER, sizeof(TPacketCGScriptAnswer), "ScriptAnswer", true);
Set(HEADER_CG_SCRIPT_BUTTON, sizeof(TPacketCGScriptButton), "ScriptButton", true);
Set(HEADER_CG_QUEST_INPUT_STRING, sizeof(TPacketCGQuestInputString), "QuestInputString", true);
Set(HEADER_CG_QUEST_CONFIRM, sizeof(TPacketCGQuestConfirm), "QuestConfirm", true);
Set(HEADER_CG_MOVE, sizeof(TPacketCGMove), "Move", true);
Set(HEADER_CG_SYNC_POSITION, sizeof(TPacketCGSyncPosition), "SyncPosition", true);
Set(HEADER_CG_FLY_TARGETING, sizeof(TPacketCGFlyTargeting), "FlyTarget", true);
Set(HEADER_CG_ADD_FLY_TARGETING, sizeof(TPacketCGFlyTargeting), "AddFlyTarget", true);
Set(HEADER_CG_SHOOT, sizeof(TPacketCGShoot), "Shoot", true);
Set(HEADER_CG_USE_SKILL, sizeof(TPacketCGUseSkill), "UseSkill", true);
Set(HEADER_CG_ITEM_USE_TO_ITEM, sizeof(TPacketCGItemUseToItem), "UseItemToItem", true);
Set(HEADER_CG_TARGET, sizeof(TPacketCGTarget), "Target", true);
Set(HEADER_CG_WARP, sizeof(TPacketCGWarp), "Warp", true);
Set(HEADER_CG_MESSENGER, sizeof(TPacketCGMessenger), "Messenger", true);
Set(HEADER_CG_PARTY_REMOVE, sizeof(TPacketCGPartyRemove), "PartyRemove", true);
Set(HEADER_CG_PARTY_INVITE, sizeof(TPacketCGPartyInvite), "PartyInvite", true);
Set(HEADER_CG_PARTY_INVITE_ANSWER, sizeof(TPacketCGPartyInviteAnswer), "PartyInviteAnswer", true);
Set(HEADER_CG_PARTY_SET_STATE, sizeof(TPacketCGPartySetState), "PartySetState", true);
Set(HEADER_CG_PARTY_USE_SKILL, sizeof(TPacketCGPartyUseSkill), "PartyUseSkill", true);
Set(HEADER_CG_PARTY_PARAMETER, sizeof(TPacketCGPartyParameter), "PartyParam", true);
Set(HEADER_CG_EMPIRE, sizeof(TPacketCGEmpire), "Empire", true);
Set(HEADER_CG_SAFEBOX_CHECKOUT, sizeof(TPacketCGSafeboxCheckout), "SafeboxCheckout", true);
Set(HEADER_CG_SAFEBOX_CHECKIN, sizeof(TPacketCGSafeboxCheckin), "SafeboxCheckin", true);
Set(HEADER_CG_SAFEBOX_ITEM_MOVE, sizeof(TPacketCGItemMove), "SafeboxItemMove", true);
Set(HEADER_CG_GUILD, sizeof(TPacketCGGuild), "Guild", true);
Set(HEADER_CG_ANSWER_MAKE_GUILD, sizeof(TPacketCGAnswerMakeGuild), "AnswerMakeGuild", true);
Set(HEADER_CG_FISHING, sizeof(TPacketCGFishing), "Fishing", true);
Set(HEADER_CG_ITEM_GIVE, sizeof(TPacketCGGiveItem), "ItemGive", true);
Set(HEADER_CG_HACK, sizeof(TPacketCGHack), "Hack", true);
Set(HEADER_CG_MYSHOP, sizeof(TPacketCGMyShop), "MyShop", true);
Set(HEADER_CG_REFINE, sizeof(TPacketCGRefine), "Refine", true);
Set(HEADER_CG_CHANGE_NAME, sizeof(TPacketCGChangeName), "ChangeName", true);
Set(HEADER_CG_CLIENT_VERSION, sizeof(TPacketCGClientVersion), "Version", true);
Set(HEADER_CG_CLIENT_VERSION2, sizeof(TPacketCGClientVersion2), "Version", true);
Set(HEADER_CG_PONG, sizeof(BYTE), "Pong", true);
Set(HEADER_CG_MALL_CHECKOUT, sizeof(TPacketCGSafeboxCheckout), "MallCheckout", true);
Set(HEADER_CG_SCRIPT_SELECT_ITEM, sizeof(TPacketCGScriptSelectItem), "ScriptSelectItem", true);
Set(HEADER_CG_DRAGON_SOUL_REFINE, sizeof(TPacketCGDragonSoulRefine), "DragonSoulRefine", false);
Set(HEADER_CG_STATE_CHECKER, sizeof(BYTE), "ServerStateCheck", false);
}
CPacketInfoCG::~CPacketInfoCG()
{
Log("packet_info.txt");
}
////////////////////////////////////////////////////////////////////////////////
CPacketInfoGG::CPacketInfoGG()
{
Set(HEADER_GG_SETUP, sizeof(TPacketGGSetup), "Setup", false);
Set(HEADER_GG_LOGIN, sizeof(TPacketGGLogin), "Login", false);
Set(HEADER_GG_LOGOUT, sizeof(TPacketGGLogout), "Logout", false);
Set(HEADER_GG_RELAY, sizeof(TPacketGGRelay), "Relay", false);
Set(HEADER_GG_NOTICE, sizeof(TPacketGGNotice), "Notice", false);
Set(HEADER_GG_SHUTDOWN, sizeof(TPacketGGShutdown), "Shutdown", false);
Set(HEADER_GG_GUILD, sizeof(TPacketGGGuild), "Guild", false);
Set(HEADER_GG_SHOUT, sizeof(TPacketGGShout), "Shout", false);
Set(HEADER_GG_DISCONNECT, sizeof(TPacketGGDisconnect), "Disconnect", false);
Set(HEADER_GG_MESSENGER_ADD, sizeof(TPacketGGMessenger), "MessengerAdd", false);
Set(HEADER_GG_MESSENGER_REMOVE, sizeof(TPacketGGMessenger), "MessengerRemove", false);
Set(HEADER_GG_FIND_POSITION, sizeof(TPacketGGFindPosition), "FindPosition", false);
Set(HEADER_GG_WARP_CHARACTER, sizeof(TPacketGGWarpCharacter), "WarpCharacter", false);
Set(HEADER_GG_GUILD_WAR_ZONE_MAP_INDEX, sizeof(TPacketGGGuildWarMapIndex), "GuildWarMapIndex", false);
Set(HEADER_GG_TRANSFER, sizeof(TPacketGGTransfer), "Transfer", false);
Set(HEADER_GG_XMAS_WARP_SANTA, sizeof(TPacketGGXmasWarpSanta), "XmasWarpSanta", false);
Set(HEADER_GG_XMAS_WARP_SANTA_REPLY, sizeof(TPacketGGXmasWarpSantaReply), "XmasWarpSantaReply", false);
Set(HEADER_GG_RELOAD_CRC_LIST, sizeof(BYTE), "ReloadCRCList", false);
Set(HEADER_GG_CHECK_CLIENT_VERSION, sizeof(BYTE), "CheckClientVersion", false);
Set(HEADER_GG_LOGIN_PING, sizeof(TPacketGGLoginPing), "LoginPing", false);
Set(HEADER_GG_BLOCK_CHAT, sizeof(TPacketGGBlockChat), "BlockChat", false);
Set(HEADER_GG_SIEGE, sizeof(TPacketGGSiege), "Siege", false);
Set(HEADER_GG_CHECK_AWAKENESS, sizeof(TPacketGGCheckAwakeness), "CheckAwakeness", false);
}
CPacketInfoGG::~CPacketInfoGG()
{
Log("p2p_packet_info.txt");
}
我在做什么错了？