Add BufFileRead variants with short read and EOF detection
Most callers of BufFileRead() want to check whether they read the full
specified length. Checking this at every call site is very tedious.
This patch provides additional variants BufFileReadExact() and
BufFileReadMaybeEOF() that include the length checks.
I considered changing BufFileRead() itself, but this function is also
used in extensions, and so changing the behavior like this would
create a lot of problems there. The new names are analogous to the
existing LogicalTapeReadExact().
Reviewed-by: Amit Kapila <amit.kapila16@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/f3501945-c591-8cc3-5ef0-b72a2e0eaa9c@enterprisedb.com
Branch
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master
Details
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https://git.postgresql.org/pg/commitdiff/20428d344a2964de6aaef9984fcd472f3c65d115
Modified Files
--------------
src/backend/access/gist/gistbuildbuffers.c | 7 +----
src/backend/backup/backup_manifest.c | 9 +-----
src/backend/executor/nodeHashjoin.c | 18 +++--------
src/backend/replication/logical/worker.c | 32 +++----------------
src/backend/storage/file/buffile.c | 50 ++++++++++++++++++++++++++++--
src/backend/utils/sort/logtape.c | 9 +-----
src/backend/utils/sort/sharedtuplestore.c | 49 ++++-------------------------
src/backend/utils/sort/tuplestore.c | 29 ++++-------------
src/include/storage/buffile.h | 4 ++-
9 files changed, 73 insertions(+), 134 deletions(-)
