Initial commit

main.go

@@ -0,0 +1,117 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"fusetest/ffs"
+	"fusetest/furcadia"
+	"log"
+	"os"
+	"sync"
+	"time"
+
+	"bazil.org/fuse"
+	"bazil.org/fuse/fs"
+)
+
+///////////////////////////////////////////////////////////////////////////////////////////////////
+// TYPE: File /////////////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////////////////////////
+
+type File struct {
+	mu   sync.Mutex
+	name string
+	data []byte
+}
+
+func (f *File) Access(ctx context.Context, req *fuse.AccessRequest) error {
+	fmt.Printf("[D] File[%v].Attr() <- %v\n", f.name, req.String())
+	return nil
+}
+
+func (f *File) Attr(ctx context.Context, a *fuse.Attr) error {
+	f.mu.Lock()
+	defer f.mu.Unlock()
+
+	a.Inode = 12345
+	a.Mode = 0755
+	a.Size = uint64(len(f.data))
+	a.Gid = 999
+	a.Uid = 999
+	a.Atime = time.Now()
+	a.Mtime = time.Now()
+	fmt.Printf("[D] File[%v].Attr() <- %v\n", f.name, a.String())
+	return nil
+}
+
+func (f *File) ReadAll(ctx context.Context, req *fuse.WriteRequest, resp *fuse.WriteResponse) ([]byte, error) {
+	f.mu.Lock()
+	defer f.mu.Unlock()
+	fmt.Printf("[D] File[%v].ReadAll(%v) <- %v\n", f.name, req.String(), resp.String())
+	return append([]byte(nil), f.data...), nil
+}
+
+func (f *File) Write(ctx context.Context, req *fuse.WriteRequest, resp *fuse.WriteResponse) error {
+	f.mu.Lock()
+	defer f.mu.Unlock()
+
+	end := int(req.Offset) + len(req.Data)
+	if end > len(f.data) {
+		newData := make([]byte, end)
+		copy(newData, f.data)
+		f.data = newData
+	}
+	copy(f.data[req.Offset:], req.Data)
+	resp.Size = len(req.Data)
+
+	fmt.Printf("[D] File[%v].Write(%v) <- %v\n", f.name, req.String(), resp.String())
+	return nil
+}
+
+func (f *File) Open(ctx context.Context, req *fuse.OpenRequest, resp *fuse.OpenResponse) (fs.Handle, error) {
+	fmt.Printf("[D] File[%v].Open(%v) <- %v\n", f.name, req.String(), resp.String())
+	return f, nil
+}
+
+func (f *File) Release(ctx context.Context, req *fuse.ReleaseRequest) error {
+	fmt.Printf("[D] File[%v].Release(%v)\n", f.name, req.String())
+	return nil
+}
+
+func (f *File) Forget() {
+	fmt.Printf("[D] File[%v].Forget()\n", f.name)
+}
+
+///////////////////////////////////////////////////////////////////////////////////////////////////
+
+func main() {
+	if len(os.Args) != 2 {
+		fmt.Printf("Usage: %v <mountpoint>\n", os.Args[0])
+		os.Exit(1)
+	}
+	mountpoint := os.Args[1]
+
+	c, err := fuse.Mount(
+		mountpoint,
+		fuse.FSName("rawrfs"),
+		fuse.Subtype("rawrfs"),
+	)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer fuse.Unmount(mountpoint)
+	defer c.Close()
+
+	uid := uint32(os.Getuid())
+	gid := uint32(os.Getgid())
+
+	pounce := furcadia.NewPounceList()
+	pounce.AddDream("Artex", "Some dream name")
+	pounce.AddDream("Ice Dragon", "")
+	pounce.AddDream("Albert Quirky", "Welcome!")
+
+	pfs := ffs.InitFS(uid, gid, pounce)
+	if err := fs.Serve(c, pfs); err != nil {
+		log.Fatal(err)
+	}
+}