READDIR(2) READDIR(2)
NAME
readdir - read directory and sort files
SYNOPSIS
include "readdir.m";
readdir := load Readdir Readdir->PATH;
NAME, ATIME, MTIME, SIZE, NONE: con iota;
COMPACT: con (1<<4);
DESCENDING: con (1<<5);
init: fn(path: string, sortkey: int): (array of ref Dir, int);
DESCRIPTION
Readdir reads the contents of the directory path and sorts
the resulting array according to sortkey.
Each element in the returned array is a reference to one Dir
element in the array formed by the dirread system call.
Readdir also returns the number of entries read, or -1 on
failure.
The sorting criteria for the returned array are based on
sortkey as follows:
NAME Sort files alphabetically by name.
ATIME Sort files by access time, most recently accessed
first.
MTIME Sort files by modification time, most recently modi-
fied first.
SIZE Sort files by size, largest file first.
NONE Files are left in directory order, unsorted.
If the value DESCENDING is or'd into any of the values
above, except NONE, the order of sorting is reversed.
The sort used is stable, of particular importance in the
presence of duplicate names in a union mount. If the value
COMPACT is or'd into any of the values above, including
NONE, only the first (outermost) entry with a given name
will be returned from reading a union mount, if names are
duplicated in the union.
SOURCE
/appl/lib/readdir.b
SEE ALSO
Page 1 Plan 9 (printed 4/23/24)
READDIR(2) READDIR(2)
sys-dirread(2)
Page 2 Plan 9 (printed 4/23/24)