>> Basically, I think internal_forkexec() needs to be split up
>into two -
>> one win32 and one other. For win32 version, it needs to
>CreateProcess()
>> *before* it does write_backend_variables(), and then pass
>the process id
>> as a parameter to write_backend_vars().
>
>Huh? Why?
Because we need to write the duplicated socket structure/pipe handle to
the parameter file. I guess we could create a separate parameter file
just for these things, but that seemed a bit unnecessary.
Basically:
1) To create the new HANDLE, or in the case of a socket, the
WSAPROTOCOL_INFO structure, we need to know the new pid. We can only
know this after CreateProcess(), which sits in win32_forkexec.
2) To get the data down to the backend, we need to put it in the
parameter file, which is done using write_backend_vars().
This gives that we either:
1) Write the data out in write_backend_vars, in which case
write_backend_vars needs to know the pid of the new backend.
or
2) Write the data out in win32_forkexec, in which case we need another
parameter file.
I was thinking (1) was the cleaner approach.
//Magnus
---------------------------(end of broadcast)---------------------------
TIP 6: Have you searched our list archives?
http://archives.postgresql.org
