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implement Fsmodule;
include "sys.m";
sys: Sys;
include "draw.m";
include "sh.m";
include "fslib.m";
fsfilter: Fsfilter;
fslib: Fslib;
Report, Value, type2s, quit: import fslib;
Fschan, Fsdata, Entrychan, Entry,
Gatechan, Gatequery, Nilentry, Option,
Next, Down, Skip, Quit: import Fslib;
Query: adt {
gate: Gatechan;
dflag: int;
reply: chan of int;
query: fn(q: self ref Query, d: ref Sys->Dir, name: string, depth: int): int;
};
types(): string
{
return "xpx-d";
}
badmod(p: string)
{
sys->fprint(sys->fildes(2), "fs: size: cannot load %s: %r\n", p);
raise "fail:bad module";
}
init()
{
sys = load Sys Sys->PATH;
fslib = load Fslib Fslib->PATH;
if(fslib == nil)
badmod(Fslib->PATH);
fsfilter = load Fsfilter Fsfilter->PATH;
if(fsfilter == nil)
badmod(Fsfilter->PATH);
}
run(nil: ref Draw->Context, nil: ref Report,
opts: list of Option, args: list of ref Value): ref Value
{
dst := chan of (Fsdata, chan of int);
spawn filterproc((hd tl args).x().i, dst, (hd args).p().i, opts != nil);
return ref Value.X(dst);
}
filterproc(src, dst: Fschan, gate: Gatechan, dflag: int)
{
fsfilter->filter(ref Query(gate, dflag, chan of int), src, dst);
gate <-= ((nil, nil, 0), nil);
}
Query.query(q: self ref Query, d: ref Sys->Dir, name: string, depth: int): int
{
if(depth == 0 || (q.dflag && (d.mode & Sys->DMDIR)))
return 1;
q.gate <-= ((d, name, depth), q.reply);
return <-q.reply;
}
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