我制作了这个简单的测试程序，它有时会触发 Debug Break 或者它只是崩溃（在 Debug/Win32/VS2010SP1 下）——当然，有时它甚至可以工作。我做错了什么还是PPL（VS2010）中的某个地方有错误？
#include "stdafx.h"
#include <ppl.h>
#include <vector>
int _tmain(int argc, _TCHAR* argv[])
{
std::vector<int> vi;
Concurrency::critical_section cs;
Concurrency::parallel_for(0, 10000, [&](int i)
{
Concurrency::critical_section::scoped_lock l(cs);
vi.push_back(i);
});
return 0;
}
Debug Break 调用堆栈如下所示：
msvcr100d.dll!_CrtDbgBreak() 第 85 行 C msvcr100d.dll!_VCrtDbgReportW(int nRptType=2, const wchar_t * szFile=0x0f45d230, int nLine=728, const wchar_t * szModule=0x00000000, const wchar_t * szFormat=0x0argflist =0x7d92f7c4) 第 502 行 C msvcr100d.dll!_CrtDbgReportWV(int nRptType=2, const wchar_t * szFile=0x0f45d230, int nLine=728, const wchar_t * szModule=0x00000000, const wchar_t * szFormat=0x0f45dx709 格式=7 * charlist) 241 + 0x1d 字节 C++ msvcr100d.dll!_CrtDbgReportW(int nRptType=2, const wchar_t * szFile=0x0f45d230, int nLine=728, const wchar_t * szModule=0x00000000, const wchar_t * szFormat=0x0f45d401d, ...) 第 258 行字节 C++ msvcr100d.dll!Concurrency::details::LockQueueNode::Copy(Concurrency::details::LockQueueNode * pCopyFromNode=0x7d92f908) 第 728 行 + 0x27 字节 C++ msvcr100d.dll!Concurrency::critical_section::_Acquire_lock(void * _PLockingNode=0x7d92f908, bool _FHasExternalNode=true) 第 1019 行 C++ msvcr100d.dll!Concurrency::critical_section::scoped_lock:: :scoped_lock(Concurrency::critical_section & _Critical_section=locked) 第 1083 行 C++ Lockable.exe！
anonymous namespace'::<lambda0>::operator()(int i=1418) Line 14 + 0x11 bytes C++ Lockable.exe!Concurrency::_Parallel_chunk_helper_invoke<int,unsigned int,匿名命名空间'::,0>::_Invoke(const int & _First=0, unsigned int & _Index=1418, constanonymous-namespace'::<lambda0> & _Func={...}) Line 1445 C++ Lockable.exe!Concurrency::_Parallel_chunk_helper<int,unsigned int,匿名命名空间'::,0>::operator()() 第 1781 行 + 0x16 字节 C++ Lockable.exe!Concurrency::task_handle,0> > >(Concurrency::task_handle,0> > * _PChore=0x7c13fba8 {_M_first= 0 _M_step=1 _M_function={...} ...}) 第 3495 行 C++ msvcr100d.dll!Concurrency::details::_UnrealizedChore::_StructuredChoreWrapper(Concurrency::details::_UnrealizedChore * pChore=0x7c13fba8 {_M_first=0 _M_step =1 _M_function={...} ...}) 第 99 行 + 0xc 字节 C++ msvcr100d.dll!Concurrency::details::_UnrealizedChore::_Invoke() 第 3454 行 + 0xc 字节 C++ msvcr100d.dll!Concurrency::details ::WorkItem::Invoke() 第 75 行 C++ msvcr100d.dll!Concurrency::details::InternalContextBase::ExecuteChoreInline(Concurrency::details::WorkItem * pWork=0x7d92fe7c) 第 1385 行 C++ msvcr100d.dll!Concurrency::details: :InternalContextBase::Dispatch(Concurrency::DispatchState * pDispatchState=0x7d92fe9c) 第 1478 行 C++ msvcr100d.dll!Concurrency::details::FreeThreadProxy::Dispatch() 第 157 行 C++ msvcr100d.dll!Concurrency::details::ThreadProxy::ThreadProxyMain(void * lpParameter=0x2ed5b4f0) 第 162 行 C++ kernel32.dll!763c33aa()
[下面的帧可能不正确和/或丢失，没有为 kernel32.dll 加载符号]
ntdll.dll!771a9ef2()
ntdll.dll!771a9ec5()
我刚刚遇到的一次崩溃看起来好像没有锁住（cs：not_locked）
Lockable.exe!std::vector >::_Orphan_range(int * _First=0x0000c5db, int * _Last=0x0000c5db) 第 1442 行 + 0x5 字节 C++ Lockable.exe!std::vector >::push_back(const int & _Val=4177 ) 第 995 行 C++
可锁定的.exe！
anonymous namespace'::<lambda0>::operator()(int i=4177) Line 16 C++ Lockable.exe!Concurrency::_Parallel_chunk_helper_invoke<int,unsigned int,匿名命名空间'::,0>::_Invoke(const int & _First=0, unsigned int & _Index=4177, constanonymous-namespace'::<lambda0> & _Func={...}) Line 1445 C++ Lockable.exe!Concurrency::_Parallel_chunk_helper<int,unsigned int,匿名命名空间'::,0>::operator()() 第 1833 行 + 0x16 字节 C++ Lockable.exe!Concurrency::task_handle,0> > >(Concurrency::task_handle,0> > * _PChore=0x7cbffc24 {_M_first= 0 _M_step=1 _M_function={...} ...}) 第 3495 行 C++ msvcr100d.dll!Concurrency::details::_UnrealizedChore::_StructuredChoreWrapper(Concurrency::details::_UnrealizedChore * pChore=0x7cbffc24 {_M_first=0 _M_step =1 _M_function={...} ...}) 第 99 行 + 0xc 字节 C++ msvcr100d.dll!Concurrency::details::_UnrealizedChore::_Invoke() 第 3454 行 + 0xc 字节 C++ msvcr100d.dll!Concurrency::details ::WorkItem::Invoke() 第 75 行 C++ msvcr100d.dll!Concurrency::details::InternalContextBase::ExecuteChoreInline(Concurrency::details::WorkItem * pWork=0x7bc0fab4) 第 1385 行 C++ msvcr100d.dll!Concurrency::details: :InternalContextBase::Dispatch(Concurrency::DispatchState * pDispatchState=0x7bc0fad4) 第 1478 行 C++ msvcr100d.dll!Concurrency::details::FreeThreadProxy::Dispatch() 第 157 行 C++ msvcr100d.dll!Concurrency::details::ThreadProxy::ThreadProxyMain(void * lpParameter=0x2dcf6200) 第 162 行 C++ kernel32.dll!763c33aa()
[下面的帧可能不正确和/或丢失，没有为 kernel32.dll 加载符号]
ntdll.dll!771a9ef2()
ntdll.dll!771a9ec5()
甚至在 PPL 内部实现中也可能存在其他随机访问违规，我猜你可以重现。（希望）
我在 Visual Studio 2012 Express for Desktop 下运行了相同的程序，经过多次测试后一切似乎都正常运行。
我想知道如果 VS2010 下的 PPL 在生产环境中使用有问题吗？
感谢您的任何投入！