请教， 如何让std::vector线程安全

daniel_zhy

我尝试着写个bt的client， 但是在多线程访问vector时中对象时，总是报些稀奇古怪的错误。

下面是其中之一。
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Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1306031184 (LWP 5630)]
0xb7b8cb23 in memmove () from /lib/libc.so.6
Current language:  auto; currently c
(gdb) bt
#0  0xb7b8cb23 in memmove () from /lib/libc.so.6
#1  0x0805dd52 in std::vector<ChunkDownloader*, std::allocator<ChunkDownloader*> >::erase (this=0x809d3e at stl_algobase.h:258
#2  0x0805dc08 in PieceDownloader::run (this=0x809d33
    at PieceDownloader.cpp:165
#3  0xb7ed7be4 in ccxx_exec_handler (th=0x809d33 at thread.cpp:1117
#4  0xb7c443dd in start_thread (arg=0xb2278bb0) at pthread_create.c:261
#5  0xb7bdcc6e in clone () from /lib/libc.so.6
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下面的一个（更奇怪了， 在 getOffset中竟然会错）：
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Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1306465360 (LWP 5653)]
0x0805d71d in PieceDownloader::run (this=0x809cc30) at ChunkDownloader.h:53
53        unsigned int getOffset(){return offset;};
Current language:  auto; currently c++
(gdb) bt
#0  0x0805d71d in PieceDownloader::run (this=0x809cc30) at ChunkDownloader.h:53
#1  0xb7e6dbe4 in ccxx_exec_handler (th=0x809cc30) at thread.cpp:1117
#2  0xb7bda3dd in start_thread (arg=0xb220ebb0) at pthread_create.c:261
#3  0xb7b72c6e in clone () from /lib/libc.so.6
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由于本人是第一次用C＋＋来写程序， 哪位帮忙指点一下。