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Add d_type to our Windows dirent emulation.

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This allows us to skip some stat calls, by extending commit 861c6e7c to
cover Windows systems.

Author: Juan José Santamaría Flecha <juanjo.santamaria@gmail.com>
Reviewed-by: Alvaro Herrera <alvherre@2ndquadrant.com>
Reviewed-by: Andres Freund <andres@anarazel.de>
Reviewed-by: Magnus Hagander <magnus@hagander.net>
Reviewed-by: Thomas Munro <thomas.munro@gmail.com>
Discussion: https://postgr.es/m/CA%2BhUKG%2BFzxupGGN4GpUdbzZN%2Btn6FQPHo8w0Q%2BAPH5Wz8RG%2Bww%40mail.gmail.com
This commit is contained in:
Thomas Munro
2020-09-07 23:18:22 +12:00
parent 74ff28197c
commit 87e6ed7c8c
2 changed files with 21 additions and 0 deletions
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10
src/port/dirent.c
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@@ -69,6 +69,7 @@ opendir(const char *dirname)
d->handle = INVALID_HANDLE_VALUE;
d->ret.d_ino = 0; /* no inodes on win32 */
d->ret.d_reclen = 0; /* not used on win32 */
d->ret.d_type = DT_UNKNOWN;
return d;
}
@@ -105,6 +106,15 @@ readdir(DIR *d)
}
strcpy(d->ret.d_name, fd.cFileName); /* Both strings are MAX_PATH long */
d->ret.d_namlen = strlen(d->ret.d_name);
/* The only identified types are: directory, regular file or symbolic link */
if ((fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0)
d->ret.d_type = DT_DIR;
/* For reparse points dwReserved0 field will contain the ReparseTag */
else if ((fd.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) != 0 &&
(fd.dwReserved0 == IO_REPARSE_TAG_MOUNT_POINT))
d->ret.d_type = DT_LNK;
else
d->ret.d_type = DT_REG;
return &d->ret;
}