请教一个gdb 抓获的错误 找不到屏蔽的方法

skybyte

请教一个gdb 抓获的错误 找不到屏蔽的方法 在哪里增加检查才能避免出错呢。

1. #0  0x000000000082007d in std::__niter_base<__gnu_cxx::__normal_iterator<unsigned char const*, std::vector<unsigned char, std::allocator<unsigned char> > >, true>:: (__it=...) at /usr/include/c++/4.4/bits/stl_algobase.h:278
   
2. #1  0x000000000081fba0 in std::__copy_move_a2<false, __gnu_cxx::__normal_iterator<unsigned char const*, std::vector<unsigned char, std::allocator<unsigned char> > >, unsigned char*> (__first=..., __last=..., __result=0x7fe5b96f4090 "") at /usr/include/c++/4.4/bits/stl_algobase.h:436
   
3. #2  0x000000000081f1c7 in std::copy<__gnu_cxx::__normal_iterator<unsigned char const*, std::vector<unsigned char, std::allocator<unsigned char> > >, unsigned char*> (__first=..., __last=..., __result=0x7fe5b96f4090 "") at /usr/include/c++/4.4/bits/stl_algobase.h:468
   
4. #3  0x000000000081cec2 in std::__uninitialized_copy<true>::uninitialized_copy<__gnu_cxx::__normal_iterator<unsigned char const*, std::vector<unsigned char, std::allocator<unsigned char> > >, unsigned char*> (__first=..., __last=..., __result=0x7fe5b96f4090 "") at /usr/include/c++/4.4/bits/stl_uninitialized.h:93
   
5. #4  0x000000000081b035 in std::uninitialized_copy<__gnu_cxx::__normal_iterator<unsigned char const*, std::vector<unsigned char, std::allocator<unsigned char> > >, unsigned char*> (__first=..., __last=..., __result=0x7fe5b96f4090 "") at /usr/include/c++/4.4/bits/stl_uninitialized.h:117
   
6. #5  0x0000000000819d54 in std::__uninitialized_copy_a<__gnu_cxx::__normal_iterator<unsigned char const*, std::vector<unsigned char, std::allocator<unsigned char> > >, unsigned char*, unsigned char> (__first=..., __last=..., __result=0x7fe5b96f4090 "") at /usr/include/c++/4.4/bits/stl_uninitialized.h:257
   
7. #6  0x000000000081891d in std::vector<unsigned char, std::allocator<unsigned char> >::vector (this=0x7fe5a91479b0, __x=...)
   
8.     at /usr/include/c++/4.4/bits/stl_vector.h:243
   
9. #7  0x0000000000a59261 in ByteBuffer::ByteBuffer (this=0x7fe5a91479a0, buf=...) at shared/ByteBuffer.h:72
   
10. #8  0x0000000000a59427 in WorldPacket::WorldPacket (this=0x7fe5a91479a0, packet=...) at shared/WorldPacket.h:37
    
11. #9  0x0000000000a562d7 in WorldSocket::SendPacket (this=0x7fe5da263d80, pct=...) at game/WorldSocket.cpp:149
    
12. 
    
13. WorldSocket.cpp:149 这行的上下文是
    
14. 
    
15.     if (iSendPacket (pct) == -1)
    
16.     {
    
17.         WorldPacket* npct;
    
18. 
    
19.         ACE_NEW_RETURN (npct, WorldPacket (pct), -1);   //这是149行
    
20. 
    
21.         // NOTE maybe check of the size of the queue can be good ?
    
22.         // to make it bounded instead of unbounded
    
23.         if (m_PacketQueue.enqueue_tail (npct) == -1)
    
24.         {
    
25.             delete npct;
    
26.             sLog.outError ("WorldSocket::SendPacket: m_PacketQueue.enqueue_tail failed");
    
27.             return -1;
    
28.         }
    
29.     }
    
30. 
    
31. 
    
32. 
    
33. 
    
34. shared/WorldPacket.h:37 的上下文是
    
35. 
    
36. 
    
37. class WorldPacket : public ByteBuffer
    
38. {
    
39.     public:
    
40.                                                             // just container for later use
    
41.         WorldPacket()                                       : ByteBuffer(0), m_opcode(0)
    
42.         {
    
43.         }
    
44.         explicit WorldPacket(uint16 opcode, size_t res=200) : ByteBuffer(res), m_opcode(opcode) { }
    
45.                                                             // copy constructor
    
46. /*         下面这行是37行 */
    
47.         WorldPacket(const WorldPacket &packet)              : ByteBuffer(packet), m_opcode(packet.m_opcode)//37行
    
48.         {
    
49.         }
    
50. 
    
51.         void Initialize(uint16 opcode, size_t newres=200)
    
52.         {
    
53.             clear();
    
54.             _storage.reserve(newres);
    
55.             m_opcode = opcode;
    
56.         }
    
57. 
    
58.         uint16 GetOpcode() const { return m_opcode; }
    
59.         void SetOpcode(uint16 opcode) { m_opcode = opcode; }
    
60. 
    
61.     protected:
    
62.         uint16 m_opcode;
    
63. };
    
64. #endif
    
65. 
    
66. 
    
67. 
    
68. shared/ByteBuffer.h:72  的上下文是
    
69. 
    
70.         // constructor
    
71.         ByteBuffer(): _rpos(0), _wpos(0)
    
72.         {
    
73.             _storage.reserve(DEFAULT_SIZE);
    
74.         }
    
75. 
    
76.         // constructor
    
77.         ByteBuffer(size_t res): _rpos(0), _wpos(0)
    
78.         {
    
79.             _storage.reserve(res);
    
80.         }
    
81. 
    
82.         // copy constructor
    
83.         ByteBuffer(const ByteBuffer &buf): _rpos(buf._rpos), _wpos(buf._wpos), _storage(buf._storage) { } //72行
    
84. 
    
85. 
    
86. 
    

复制代码

linux_c_py_php

valgrind试试看

skybyte

看起来就是发包的时候出错了

但出错系统就坏了，这个怎么办呢

    if (iSendPacket (pct) == -1)
    {
        WorldPacket* npct;

        ACE_NEW_RETURN (npct, WorldPacket (pct), -1);   //这是149行  从这里下去开始死掉

        // NOTE maybe check of the size of the queue can be good ?
        // to make it bounded instead of unbounded
        if (m_PacketQueue.enqueue_tail (npct) == -1)
        {
            delete npct;
            sLog.outError ("WorldSocket::SendPacket: m_PacketQueue.enqueue_tail failed");
            return -1;
        }
    }

skybyte

GDB虽然强大，看得也是头晕，还没找到解决办法