postgresql/src/bin/pg_resetwal
Tom Lane 3cb29c42f9 Add static assertions about pg_control fitting into one disk sector.
When pg_control was first designed, sizeof(ControlFileData) was small
enough that a comment seemed like plenty to document the assumption that
it'd fit into one disk sector.  Now it's nearly 300 bytes, raising the
possibility that somebody would carelessly add enough stuff to create
a problem.  Let's add a StaticAssertStmt() to ensure that the situation
doesn't pass unnoticed if it ever occurs.

While at it, rename PG_CONTROL_SIZE to PG_CONTROL_FILE_SIZE to make it
clearer what that symbol means, and convert the existing runtime
comparisons of sizeof(ControlFileData) vs. PG_CONTROL_FILE_SIZE to be
static asserts --- we didn't have that technology when this code was
first written.

Discussion: https://postgr.es/m/9192.1500490591@sss.pgh.pa.us
2017-07-19 16:16:57 -04:00
..
po Translation updates 2017-07-10 11:53:55 -04:00
.gitignore Rename user-facing tools with "xlog" in the name to say "wal". 2017-02-09 16:23:46 -05:00
Makefile Rename user-facing tools with "xlog" in the name to say "wal". 2017-02-09 16:23:46 -05:00
nls.mk Rename user-facing tools with "xlog" in the name to say "wal". 2017-02-09 16:23:46 -05:00
pg_resetwal.c Add static assertions about pg_control fitting into one disk sector. 2017-07-19 16:16:57 -04:00