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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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src/include/storage/fd.h
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@@ -157,7 +157,7 @@ extern void fsync_fname(const char *fname, bool isdir);
extern int fsync_fname_ext(const char *fname, bool isdir, bool ignore_perm, int elevel);
extern int durable_rename(const char *oldfile, const char *newfile, int loglevel);
extern int durable_unlink(const char *fname, int loglevel);
extern int durable_link_or_rename(const char *oldfile, const char *newfile, int loglevel);
extern int durable_rename_excl(const char *oldfile, const char *newfile, int loglevel);
extern void SyncDataDirectory(void);
extern int data_sync_elevel(int elevel);