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Move initialization of the Port struct to the child process

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In postmaster, use a more lightweight ClientSocket struct that
encapsulates just the socket itself and the remote endpoint's address
that you get from accept() call. ClientSocket is passed to the child
process, which initializes the bigger Port struct. This makes it more
clear what information postmaster initializes, and what is left to the
child process.

Rename the StreamServerPort and StreamConnection functions to make it
more clear what they do. Remove StreamClose, replacing it with plain
closesocket() calls.

Reviewed-by: Tristan Partin, Andres Freund
Discussion: https://www.postgresql.org/message-id/7a59b073-5b5b-151e-7ed3-8b01ff7ce9ef@iki.fi
This commit is contained in:
Heikki Linnakangas
2024-03-12 13:42:38 +02:00
parent d162c3a73b
commit 4945e4ed4a
6 changed files with 142 additions and 185 deletions
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5
src/backend/tcop/postgres.c
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@@ -4233,10 +4233,7 @@ PostgresMain(const char *dbname, const char *username)
/*
* If the PostmasterContext is still around, recycle the space; we don't
* need it anymore after InitPostgres completes. Note this does not trash
* *MyProcPort, because ConnCreate() allocated that space with malloc()
* ... else we'd need to copy the Port data first. Also, subsidiary data
* such as the username isn't lost either; see ProcessStartupPacket().
* need it anymore after InitPostgres completes.
*/
if (PostmasterContext)
{