Provide helper for retrying partial vectored I/O.
authorThomas Munro <tmunro@postgresql.org>
Mon, 11 Dec 2023 21:28:46 +0000 (10:28 +1300)
committerThomas Munro <tmunro@postgresql.org>
Mon, 11 Dec 2023 21:57:18 +0000 (10:57 +1300)
commit0c6be59f5e34f44b20d9ec3ffb58c1d9a0bf985e
treec4a8d36502194629edc76f8e4b4561df7ce3673b
parentbaf7c93ed583949d837bc13f24a15a0efbcb1ae7
Provide helper for retrying partial vectored I/O.

compute_remaining_iovec() is a re-usable routine for retrying after
pg_readv() or pg_writev() reports a short transfer.  This will gain new
users in a later commit, but can already replace the open-coded
equivalent code in the existing pg_pwritev_with_retry() function.

Reviewed-by: Heikki Linnakangas <hlinnaka@iki.fi>
Discussion: https://postgr.es/m/CA+hUKGJkOiOCa+mag4BF+zHo7qo=o9CFheB8=g6uT5TUm2gkvA@mail.gmail.com
src/common/file_utils.c
src/include/common/file_utils.h