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Remove HAVE_WORKING_LINK

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Previously, hard links were not used on Windows and Cygwin, but they
support them just fine in currently supported OS versions, so we can
use them there as well.

Since all supported platforms now support hard links, we can remove
the alternative code paths.

Rename durable_link_or_rename() to durable_rename_excl() to make the
purpose more clear without referencing the implementation details.

Discussion: https://www.postgresql.org/message-id/flat/72fff73f-dc9c-4ef4-83e8-d2e60c98df48%402ndquadrant.com
This commit is contained in:
Peter Eisentraut
2020-03-11 10:58:02 +01:00
parent d114cc5387
commit aaa3aeddee
5 changed files with 10 additions and 28 deletions
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7
src/include/pg_config_manual.h
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@@ -129,13 +129,6 @@
#undef HAVE_UNIX_SOCKETS
#endif
/*
* Define this if your operating system supports link()
*/
#if !defined(WIN32) && !defined(__CYGWIN__)
#define HAVE_WORKING_LINK 1
#endif
/*
* USE_POSIX_FADVISE controls whether Postgres will attempt to use the
* posix_fadvise() kernel call. Usually the automatic configure tests are