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1. Added ability to query if Select was interrupted with APC

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2. Updated So that before readableStream and 'exit' are dispatched, APC's are unrolled if 'select' was interrupted, preventing stack corruption caused by trying to make a re-entrant winsock call, which is not supported by winsock.
This commit is contained in:
Bryan Roe
2019-08-07 11:32:33 -07:00
parent d5962cd1b2
commit a89a3204c1
4 changed files with 28 additions and 3 deletions
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13
microscript/ILibDuktape_ReadableStream.c
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@@ -276,7 +276,18 @@ void __stdcall ILibDuktape_readableStream_WriteData_OnData_ChainThread_APC(ULONG
{
ILibDuktape_readableStream_bufferedData *data = (ILibDuktape_readableStream_bufferedData*)obj;
void *chain = ((void**)ILibMemory_GetExtraMemory((void*)obj, sizeof(ILibDuktape_readableStream_bufferedData) + data->bufferLen))[0];
ILibDuktape_readableStream_WriteData_OnData_ChainThread(chain, (void*)obj);
if (ILibChain_SelectInterrupted(chain) != 0)
{
// This APC interrupted a winsock (select) call, so we must unroll the callstack to continue,
// because winsock is not re-entrant, so we cannot risk making another winsock call directly.
//
ILibChain_RunOnMicrostackThreadEx2(chain, ILibDuktape_readableStream_WriteData_OnData_ChainThread, (void*)obj, 0);
}
else
{
ILibDuktape_readableStream_WriteData_OnData_ChainThread(chain, (void*)obj);
}
}
#endif