FSPROTO(2) FSPROTO(2)
NAME
FSproto: readprotofile, readprotostring - read file system
prototype file
SYNOPSIS
include "fsproto.m";
fsproto := load FSproto FSproto->PATH;
Direntry: type (string, string, ref Sys->Dir);
init: fn(): string;
readprotofile: fn(proto: string, root: string,
entries: chan of Direntry,
warnings: chan of (string, string)): string;
readprotostring: fn(proto: string, root: string,
entries: chan of Direntry,
warnings: chan of (string, string));
DESCRIPTION
FSproto provides an interface to read a file system proto-
type file, as defined by proto(6).
Init must be called before any other function in the module.
Readprotofile reads a file system prototype from the file
proto. It traverses the file system, starting at the given
root, and each file or directory encountered that is men-
tioned in the prototype causes readprotofile to send a
Direntry tuple on the channel entries. The tuple has the
form (old,new,dir) where old is the name of the current file
or directory, rooted at root, new is the same file's name
relative to root, and dir is a reference to the Sys->Dir
directory information for old, as produced by sys-stat(2).
When all files in root have been examined, readprotofile
sends a single tuple with all nil components on entries. For
each error that occurs during processing (eg, unable to open
a directory) readprotofile sends a tuple (old,diag) on the
channel warnings, naming the file and giving a diagnostic
string, but processing continues.
Readprotostring reads a file system prototype from the
string proto itself. Otherwise, its operation is the same
as readprotofile.
SOURCE
/appl/lib/fsproto.b
SEE ALSO
Page 1 Plan 9 (printed 11/23/24)
FSPROTO(2) FSPROTO(2)
fs(1), proto(6), mkfs(8)
Page 2 Plan 9 (printed 11/23/24)