我已經定義了以下的std ::地圖:的std ::的remove_if/find_if:雙免費或腐敗
//The map holding the list of registered services per partition key.
std::map<SRServicePartitionKey, std::vector<EndPointAddr*>* > mServiceMap;
我在下面指示的功能,其目的是在載體中刪除特定EndPointAddr *指針保存在上面定義的Map實例的值中。我越來越廣發行SEGABORT實現以下情形後:
- 由一個多個項目添加到地圖
- 刪除使用這個函數的一個項目。
- 再次添加這些已刪除的項目(其中的幾個)
刪除一個項目==>此時,我得到了GDB以下消息SIGABORT一個:
* glibc的檢測* /家/ HOLB /設計/ ECLB_CP/REP的/ V2/eclb_cp/build_output/ServiceRegistrar:雙重釋放或腐敗(fasttop):0x00007ffff0002e10 *
GDB回溯可在底部...
問題 你認爲在下面的刪除功能中有什麼特別的東西是錯誤的?爲什麼我得到這個「雙免費或腐敗」的錯誤?您認爲我在刪除功能中缺少什麼,我首先找到要刪除的項目,然後將其從載體中移除並最終釋放它。
去除功能
bool
ServiceRegistrar::removeService(const EndPointAddr & epAddrForRemoval)
{
bool condErased = false;
for(auto it = mServiceMap.begin(); it != mServiceMap.end(); ++it)
{
std::cout << "\tPartition ["
<< (*it).first.getInstanceNo() << ","
<< (*it).first.getContext() << ","
<< (*it).first.getVersion() << "]:"
<< std::endl;
std::vector<EndPointAddr*> * serviceList = (*it).second;
auto found =
std::find_if(serviceList->begin(),
serviceList->end(),
[epAddrForRemoval](EndPointAddr* otherEPAddr)
{
const EndPointTipcAddr & tipcAddrToRemove = epAddrForRemoval.getImmutableTipcAddress();
const EndPointTipcAddr & otherTipcAddr = otherEPAddr->getImmutableTipcAddress();
return (tipcAddrToRemove.compareTo(otherTipcAddr));
});
EndPointAddr * toBeDeAllocatedEP = *found;
auto toBeErasedEP =
std::remove_if(serviceList->begin(),
serviceList->end(),
[epAddrForRemoval](EndPointAddr* otherEPAddr)
{
const EndPointTipcAddr & tipcAddrToRemove = epAddrForRemoval.getImmutableTipcAddress();
const EndPointTipcAddr & otherTipcAddr = otherEPAddr->getImmutableTipcAddress();
return (tipcAddrToRemove.compareTo(otherTipcAddr));
});
if(toBeErasedEP != serviceList->end())
{
serviceList->erase(toBeErasedEP, serviceList->end());
condErased = true;
}
if(toBeDeAllocatedEP != 0)
{
!!!!!!!!!!!!LINE 1396 is HERE!!!!!!!!!!!!!!!
delete toBeDeAllocatedEP;
}
} //end of For Loop
return condErased;
}
GDB回溯
(gdb) bt
#0 0x00007ffff7026425 in raise() from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007ffff7029b8b in abort() from /lib/x86_64-linux-gnu/libc.so.6
#2 0x00007ffff706439e in ??() from /lib/x86_64-linux-gnu/libc.so.6
#3 0x00007ffff706eb96 in ??() from /lib/x86_64-linux-gnu/libc.so.6
#4 0x00007ffff7681540 in std::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()() from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#5 0x0000000000434604 in EndPointIpAddr::~EndPointIpAddr (this=0x7ffff0002fb0, __in_chrg=<optimized out>) at /home/holb/DESIGN/ECLB_CP/REPs/V2/eclb_cp/src/control_components/../control_api/api_util/EndPointIpAddr.hpp:28
#6 0x0000000000434660 in EndPointAddr::~EndPointAddr (this=0x7ffff0002f90, __in_chrg=<optimized out>) at /home/holb/DESIGN/ECLB_CP/REPs/V2/eclb_cp/src/control_components/../control_api/api_util/EndPointAddr.hpp:36
#7 0x000000000043c97f in ServiceRegistrar::removeService (this=0x7fffffffdea0, epAddrForRemoval=...) at /home/holb/DESIGN/ECLB_CP/REPs/V2/eclb_cp/src/control_api/ServiceRegistrar.cpp:1396
可能不相關:儘管'const&'接受'epAddrForRemoval',你正在捕獲每個lambda中的副本。如果複製成本很高,請參考它。如果不是,爲什麼不按值傳入'removeService'? – Casey