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postgresql/src/common
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Michael Paquier 3bdbdf5d06 Introduce pg_pwrite_zeros() in fileutils.c 
This routine is designed to write zeros to a file using vectored I/O,
for a size given by its caller, being useful when it comes to
initializing a file with a final size already known.

XLogFileInitInternal() in xlog.c is changed to use this new routine when
initializing WAL segments with zeros (wal_init_zero enabled).  Note that
the aligned buffers used for the vectored I/O writes have a size of
XLOG_BLCKSZ, and not BLCKSZ anymore, as pg_pwrite_zeros() relies on
PGAlignedBlock while xlog.c originally used PGAlignedXLogBlock.

This routine will be used in a follow-up patch to do the pre-padding of
WAL segments for pg_receivewal and pg_basebackup when these are not
compressed.

Author: Bharath Rupireddy
Reviewed-by: Nathan Bossart, Andres Freund, Thomas Munro, Michael
Paquier
Discussion: https://www.postgresql.org/message-id/CALj2ACUq7nAb7%3DbJNbK3yYmp-SZhJcXFR_pLk8un6XgDzDF3OA%40mail.gmail.com
2022-11-08 12:23:46 +09:00
..
unicode meson: Add initial version of meson based build system 2022-09-21 22:37:17 -07:00
.gitignore Replace the data structure used for keyword lookup. 2019-01-06 17:02:57 -05:00
archive.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
base64.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
checksum_helper.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
compression.c Message style improvements 2022-09-24 18:41:25 -04:00
config_info.c Assorted examples of expanded type-safer palloc/pg_malloc API 2022-09-12 08:45:03 +02:00
controldata_utils.c Remove AssertArg and AssertState 2022-10-28 09:19:06 +02:00
cryptohash.c Fix comment related to pg_cryptohash_error() 2022-01-12 12:39:36 +09:00
cryptohash_openssl.c Pre-beta mechanical code beautification. 2022-05-12 15:17:30 -04:00
d2s.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
d2s_full_table.h Update copyright for 2022 2022-01-07 19:04:57 -05:00
d2s_intrinsics.h Update copyright for 2022 2022-01-07 19:04:57 -05:00
digit_table.h Change floating-point output format for improved performance. 2019-02-13 15:20:33 +00:00
encnames.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
exec.c Clean up inconsistent use of fflush(). 2022-08-29 13:55:41 -04:00
f2s.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
fe_memutils.c Remove redundant null pointer checks before free() 2022-07-03 11:47:15 +02:00
file_perm.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
file_utils.c Introduce pg_pwrite_zeros() in fileutils.c 2022-11-08 12:23:46 +09:00
hashfn.c Use bitwise rotate functions in more places 2022-02-20 13:22:08 +07:00
hmac.c Improve error handling of HMAC computations 2022-01-13 16:17:21 +09:00
hmac_openssl.c Clear the OpenSSL error queue before cryptohash operations 2022-05-06 14:41:31 +02:00
ip.c Don't bother to set sockaddr_un.sun_len. 2022-08-24 00:09:37 +12:00
jsonapi.c Change some errdetail() to errdetail_internal() 2022-09-28 17:14:53 +02:00
keywords.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
kwlookup.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
link-canary.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
logging.c logging: Also add the command prefix to detail and hint messages 2022-05-30 07:26:06 +02:00
Makefile Rename backup_compression.{c,h} to compression.{c,h} 2022-04-12 13:38:54 +09:00
md5.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
md5_common.c Add missing error handling in pg_md5_hash(). 2022-04-18 20:04:55 -04:00
md5_int.h Update copyright for 2022 2022-01-07 19:04:57 -05:00
meson.build meson: Add support for building with precompiled headers 2022-10-06 17:19:30 -07:00
pg_get_line.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
pg_lzcompress.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
pg_prng.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
pgfnames.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
protocol_openssl.c Remove AssertArg and AssertState 2022-10-28 09:19:06 +02:00
psprintf.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
relpath.c Revert 56-bit relfilenode change and follow-up commits. 2022-09-28 09:55:28 -04:00
restricted_token.c Replace load of functions by direct calls for some WIN32 2022-09-09 10:52:17 +09:00
rmtree.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
ryu_common.h Update copyright for 2022 2022-01-07 19:04:57 -05:00
saslprep.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
scram-common.c Improve error handling of HMAC computations 2022-01-13 16:17:21 +09:00
sha1.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
sha1_int.h Update copyright for 2022 2022-01-07 19:04:57 -05:00
sha2.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
sha2_int.h Update copyright for 2022 2022-01-07 19:04:57 -05:00
sprompt.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
string.c pg_clean_ascii(): escape bytes rather than lose them 2022-09-13 16:10:44 +02:00
stringinfo.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
unicode_norm.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
username.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
wait_error.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
wchar.c Treat Unicode codepoints of category "Format" as non-spacing 2022-09-13 16:13:33 +07:00