shithub: namespace-example

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ref: da0a87c6b0b0294175e5f084118c8d587c65a8f4
parent: 48c2835479a9e2f1fee7d4a3240cb580bba7bc6e
author: glenda <[email protected]>
date: Thu Nov 26 23:41:44 EST 2020 

added more functions


--- a/main.c
+++ b/main.c
@@ -4,11 +4,95 @@
 #include <thread.h>
 #include <9p.h>
 
+enum {
+	Qroot,
+		Qitem1,
+		Qitem2,
+};
+
+typedef struct F {
+	char *name;
+	Qid qid;
+	ulong mode;
+} F;
+
+
+F root = {
+	"/", {Qroot, 0, QTDIR}, 0555|DMDIR
+};
+
+F roottab[] = {
+	"item1", {Qitem1, 0, QTFILE}, 0444,
+	"item2", {Qitem2, 0, QTFILE}, 0444,
+};
+
+enum {Cmdrange};
+Cmdtab cmd[] = {
+	Cmdrange, "range", 3,
+};
+
+F*
+filebypath(uvlong path)
+{
+	int i;
+
+	if(path == Qroot)
+		return &root;
+	for(i = 0; i < nelem(roottab); i++)
+		if(path == roottab[i].qid.path)
+			return &roottab[i];
+	return nil;
+}
+
 void
+fillstat(Dir *d, uvlong path, char *user)
+{
+	F *f;
+
+	f = filebypath(path);
+	d->name = estrdup9p(f->name);
+	d->qid = f->qid;
+	d->mode = f->mode;
+	d->uid = estrdup9p(user);
+	d->gid = estrdup9p(user);
+	d->muid = estrdup9p(user);
+	d->length = 0;
+	d->atime = time(0);
+	d->mtime = time(0);
+}
+
+void
 nattach(Req *r)
 {
+	r->fid->qid = filebypath(Qroot)->qid;
+	r->ofcall.qid = r->fid->qid;
+	respond(r, nil);
 }
 
+char*
+nwalk1(Fid *fid, char *name, Qid *qid)
+{
+	int i;
+	
+	switch(fid->qid.path){
+	case Qroot:
+		for(i = 0; i < nelem(roottab); i++){
+			if(strcmp(roottab[i].name, name) == 0){
+				*qid = roottab[i].qid;
+				fid->qid = *qid;
+				return nil;
+			}
+		}
+		if(strcmp("..", name) == 0){
+			*qid = root.qid;
+			fid->qid = *qid;
+			return nil;
+		}
+		break;
+	}
+	return "not found";
+}
+
 void
 nread(Req *r)
 {
@@ -29,10 +113,16 @@
 void
 nstat(Req *r)
 {
+	fillstat(&r->d, r->fid->qid.path, r->fid->uid);
+	respond(r, nil);
+	return;
 }
 
 void
-ndestroyfid(Req *r){
+ndestroyfid(Fid *fid)
+{
+	if(fid->aux != nil)
+		free(fid->aux);
 }
 
 Srv fs = {
@@ -44,7 +134,7 @@
 	.write = nwrite,
 	
 	.destroyfid = ndestroyfid,
-}
+};
 
 void
 threadmain(int argc, char **argv)
@@ -54,4 +144,5 @@
 	char *mtpt, *srvn;
 	mtpt = "/mnt/namespace-test";
 	srvn = nil;
+	postmountsrv(&fs, srvn, mtpt, MREPL);
 }