mirror of
https://github.com/postgres/postgres.git
synced 2026-01-26 09:41:40 +03:00
bde3a46160
This change has the advantage of removing some weird type casts, caused by offset calculations based on pgoff_t but saved as int (on older branches we use off_t, which could be 4 or 8 bytes depending on the environment). These are safe currently because capped by MAX_PHYSICAL_FILESIZE, but we would run into problems when to make MAX_PHYSICAL_FILESIZE larger or allow callers of these routines to use a larger physical max size on demand. While on it, this improves BufFileDumpBuffer() so as we do not use an offset for "availbytes". It is not a file offset per-set, but a number of available bytes. This change should lead to no functional changes. Author: Chao Li <li.evan.chao@gmail.com> Discussion: https://postgr.es/m/aUStrqoOCDRFAq1M@paquier.xyz