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Commit4acf99b

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Send paramHandle to subprocesses as 64-bit on Win64
The handle to the shared memory segment containing startupparameters was sent as 32-bit even on 64-bit systems. SinceHANDLEs appear to be allocated sequentially this shouldn'tbe a problem until we reach 2^32 open handles in the postmaster,but a 64-bit value should be sent across as 64-bit, and notzero out the top 32 bits.Noted by Tom Lane.
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‎src/backend/postmaster/postmaster.c

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@@ -3755,7 +3755,11 @@ internal_forkexec(int argc, char *argv[], Port *port)
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}
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/* Insert temp file name after --fork argument */
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#ifdef_WIN64
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sprintf(paramHandleStr,"%llu", (LONG_PTR)paramHandle);
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#else
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sprintf(paramHandleStr,"%lu", (DWORD)paramHandle);
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#endif
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argv[2]=paramHandleStr;
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/* Format the cmd line */
@@ -4825,7 +4829,11 @@ read_backend_variables(char *id, Port *port)
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HANDLEparamHandle;
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BackendParameters*paramp;
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#ifdef_WIN64
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paramHandle= (HANDLE)_atoi64(id);
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#else
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paramHandle= (HANDLE)atol(id);
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#endif
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paramp=MapViewOfFile(paramHandle,FILE_MAP_READ,0,0,0);
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if (!paramp)
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{

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