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Refactor code checking for file existence

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jit.c and dfgr.c had a copy of the same code to check if a file exists
or not, with a twist: jit.c did not check for EACCES when failing the
stat() call for the path whose existence is tested.  This refactored
routine will be used by an upcoming patch.

Reviewed-by: Ashutosh Bapat
Discussion: https://postgr.es/m/ZTiV8tn_MIb_H2rE@paquier.xyz
This commit is contained in:
Michael Paquier
2024-01-12 12:04:51 +09:00
parent 08c3ad27eb
commit e72a37528d
4 changed files with 29 additions and 40 deletions
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src/include/storage/fd.h
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@@ -182,6 +182,7 @@ extern int pg_fsync(int fd);
extern int pg_fsync_no_writethrough(int fd);
extern int pg_fsync_writethrough(int fd);
extern int pg_fdatasync(int fd);
extern bool pg_file_exists(const char *fname);
extern void pg_flush_data(int fd, off_t offset, off_t nbytes);
extern int pg_truncate(const char *path, off_t length);
extern void fsync_fname(const char *fname, bool isdir);