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postgresql/src/common
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Michael Paquier 0ba06e0bfb Allow concurrent-safe open() and fopen() in frontend code for Windows 
PostgreSQL uses a custom wrapper for open() and fopen() which is
concurrent-safe, allowing multiple processes to open and work on the
same file.  This has a couple of advantages:
- pg_test_fsync does not handle O_DSYNC correctly otherwise, leading to
false claims that disks are unsafe.
- TAP tests can run into race conditions when a postmaster and pg_ctl
open postmaster.pid, fixing some random failures in the buildfam.

pg_upgrade is one frontend tool using workarounds to bypass file locking
issues with the log files it generates, however the interactions with
pg_ctl are proving to be tedious to get rid of, so this is left for
later.

Author: Laurenz Albe
Reviewed-by: Michael Paquier, Kuntal Ghosh
Discussion: https://postgr.es/m/1527846213.2475.31.camel@cybertec.at
Discussion: https://postgr.es/m/16922.1520722108@sss.pgh.pa.us
 		2018-09-14 10:04:14 +09:00
..
unicode Fix more wrong paths in header comments 2018-07-11 17:57:04 +03:00
Makefile Install a check for mis-linking of src/port and src/common functions. 2018-09-09 12:23:23 -04:00
base64.c Update copyright for 2018 2018-01-02 23:30:12 -05:00
config_info.c Update copyright for 2018 2018-01-02 23:30:12 -05:00
controldata_utils.c Add proper errcodes to new error messages for read() failures 2018-07-23 09:37:36 +09:00
exec.c Produce compiler errors if errno is referenced inside elog/ereport calls. 2018-08-11 11:23:41 -04:00
fe_memutils.c Update copyright for 2018 2018-01-02 23:30:12 -05:00
file_perm.c Fix more wrong paths in header comments 2018-07-11 17:57:04 +03:00
file_utils.c Allow concurrent-safe open() and fopen() in frontend code for Windows 2018-09-14 10:04:14 +09:00
ip.c Clean up assorted misuses of snprintf()'s result value. 2018-08-15 16:29:31 -04:00
keywords.c Update copyright for 2018 2018-01-02 23:30:12 -05:00
link-canary.c Install a check for mis-linking of src/port and src/common functions. 2018-09-09 12:23:23 -04:00
md5.c Update copyright for 2018 2018-01-02 23:30:12 -05:00
pg_lzcompress.c Update copyright for 2018 2018-01-02 23:30:12 -05:00
pgfnames.c Update copyright for 2018 2018-01-02 23:30:12 -05:00
psprintf.c Require a C99-compliant snprintf(), and remove related workarounds. 2018-08-16 13:01:09 -04:00
relpath.c Further cleanup of client dependencies on src/include/catalog headers. 2018-04-09 14:39:58 -04:00
restricted_token.c Update copyright for 2018 2018-01-02 23:30:12 -05:00
rmtree.c Update copyright for 2018 2018-01-02 23:30:12 -05:00
saslprep.c Minor cleanup/future-proofing for pg_saslprep(). 2018-09-08 18:20:36 -04:00
scram-common.c Update copyright for 2018 2018-01-02 23:30:12 -05:00
sha2.c Update copyright for 2018 2018-01-02 23:30:12 -05:00
sha2_openssl.c Update copyright for 2018 2018-01-02 23:30:12 -05:00
string.c restrict -> pg_restrict 2018-03-15 10:02:59 -03:00
unicode_norm.c Update copyright for 2018 2018-01-02 23:30:12 -05:00
username.c Update copyright for 2018 2018-01-02 23:30:12 -05:00
wait_error.c Update copyright for 2018 2018-01-02 23:30:12 -05:00