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Fixed Windows IPC Read, to unroll completion callback, before dispatching

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Fixed edge case bug where stack wasn't popped correctly for IPC Write
This commit is contained in:
Bryan Roe
2019-12-05 14:45:07 -08:00
parent 8356cbf190
commit 4a2bc80d2e
1 changed files with 23 additions and 3 deletions
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24
microscript/ILibDuktape_net.c
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@@ -91,6 +91,8 @@ typedef struct ILibDuktape_net_WindowsIPC
OVERLAPPED overlapped;
ILibDuktape_DuplexStream *ds;
ULONG_PTR _reserved[5];
int processingRead;
char *buffer;
int bufferLength;
@@ -818,10 +820,14 @@ int ILibDuktape_net_server_IPC_unshiftSink(ILibDuktape_DuplexStream *sender, int
winIPC->unshiftedBytes = unshiftBytes;
return(unshiftBytes);
}
void ILibDuktape_net_server_IPC_readsink(ILibProcessPipe_Pipe sender, void *user, DWORD dwErrorCode, char *buffer, int bufferLen)
void ILibDuktape_net_server_IPC_readsink_safe(void *chain, void *user)
{
ILibDuktape_net_WindowsIPC *winIPC = (ILibDuktape_net_WindowsIPC*)user;
if (!ILibMemory_CanaryOK(user)) { return; }
ILibDuktape_net_WindowsIPC *winIPC = (ILibDuktape_net_WindowsIPC*)user;
ILibProcessPipe_Pipe sender = (ILibProcessPipe_Pipe)winIPC->_reserved[0];
DWORD dwErrorCode = (DWORD)winIPC->_reserved[2];
char *buffer = (char*)winIPC->_reserved[3];
int bufferLen = (int)winIPC->_reserved[4];
if (dwErrorCode == 0)
{
@@ -861,6 +867,19 @@ void ILibDuktape_net_server_IPC_readsink(ILibProcessPipe_Pipe sender, void *user
}
}
}
void ILibDuktape_net_server_IPC_readsink(ILibProcessPipe_Pipe sender, void *user, DWORD dwErrorCode, char *buffer, int bufferLen)
{
ILibDuktape_net_WindowsIPC *winIPC = (ILibDuktape_net_WindowsIPC*)user;
if (!ILibMemory_CanaryOK(user)) { return; }
winIPC->_reserved[0] = (ULONG_PTR)sender;
winIPC->_reserved[1] = (ULONG_PTR)user;
winIPC->_reserved[2] = (ULONG_PTR)dwErrorCode;
winIPC->_reserved[3] = (ULONG_PTR)buffer;
winIPC->_reserved[4] = (ULONG_PTR)bufferLen;
ILibChain_RunOnMicrostackThreadEx(Duktape_GetChain(winIPC->ctx), ILibDuktape_net_server_IPC_readsink_safe, winIPC);
}
void ILibDuktape_net_server_IPC_PauseSink(ILibDuktape_DuplexStream *sender, void *user)
{
// No-OP, becuase all we need to so is set Paused flag, which is already the case when we get here
@@ -965,6 +984,7 @@ void ILibDuktape_net_server_IPC_WriteCompletionEvent(ILibProcessPipe_Pipe sender
else
{
// No more pending writes, so we can emit drain
duk_set_top(winIPC->ctx, top); // ...
ILibDuktape_DuplexStream_Ready(winIPC->ds);
}
}