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Provide pg_preadv() and pg_pwritev().

author Thomas Munro <tmunro@postgresql.org>

2021年1月11日 01:37:13 +0000 (14:37 +1300)

committer Thomas Munro <tmunro@postgresql.org>

2021年1月11日 02:24:38 +0000 (15:24 +1300)

commit 13a021f3e8c99915b3cc0cb2021a948d9c71ff32

tree f532b74cfecef4bb150d2853509f105c3fe05e21 tree

parent 01334c92fa09dc496a444a4f206854ef37247258 commit | diff

Provide pg_preadv() and pg_pwritev().

Provide synchronous vectored file I/O routines. These map to preadv()
and pwritev(), with fallback implementations for systems that don't have
them. Also provide a wrapper pg_pwritev_with_retry() that automatically
retries on short writes.

Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://postgr.es/m/CA%2BhUKGJA%2Bu-220VONeoREBXJ9P3S94Y7J%2BkqCnTYmahvZJwM%3Dg%40mail.gmail.com

configure diff | blob | blame | history

configure.ac diff | blob | blame | history

src/include/pg_config.h.in diff | blob | blame | history

src/include/port.h diff | blob | blame | history

src/include/port/pg_iovec.h [new file with mode: 0644] blob

src/port/Makefile diff | blob | blame | history

src/port/pread.c diff | blob | blame | history

src/port/pwrite.c diff | blob | blame | history

src/tools/msvc/Solution.pm diff | blob | blame | history

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