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注意:
问题:
插图:
IS8Simulation *pis8 = NULL;
...
CoCreateInstance(
clsid,
NULL,
CLSCTX_LOCAL_SERVER,
__uuidof(IS8Simulation),
(void **) &pis8);
...
hThread = CreateThread(
NULL,
0,
SecondaryThread,
//interface pointer pis8
0,
&dwGenericThreadID);
...
DWORD WINAPI SecondaryThread(LPVOID iValue)
{
//using iValue accordingly
//E.g.: iValue->Open
问候
最佳答案
如下所述,在线程之间传递 COM
接口(interface)指针是不安全的。
假设您知道自己在做什么:
hThread = CreateThread(
NULL,
0,
SecondaryThread,
(LPVOID) pis8
0,
&dwGenericThreadID);
DWORD WINAPI SecondaryThread(LPVOID iValue)
{
((IS8Simulation*) iValue)->Open();
}
线程安全版本:
void MainThread()
{
IStream* psis8;
HRESULT res = CoMarshalInterThreadInterfaceInStream (IID_IS8SIMULATION, pis8, &psis8);
if (FAILED(res))
return;
hThread = CreateThread(
NULL,
0,
SecondaryThread,
(LPVOID) psis8
0,
&dwGenericThreadID
);
}
DWORD WINAPI SecondaryThread(LPVOID iValue)
{
IS8Simulation* pis8;
HRESULT res = CoGetInterfaceAndReleaseStream((IStream*) iValue, IID_IS8SIMULATION, &pis8);
if (FAILED(res))
return (DWORD) res;
pis8->Open();
}
关于c++ - 如何将接口(interface)指针传递给线程?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/510788/
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