Add statfs example

.gitignore

@@ -0,0 +1 @@
+*.exe

examples/hellofs/go.mod

@@ -0,0 +1,5 @@
+module hellofs
+
+go 1.17
+
+require github.com/billziss-gh/cgofuse v1.5.0

examples/hellofs/go.sum

@@ -0,0 +1,2 @@
+github.com/billziss-gh/cgofuse v1.5.0 h1:kH516I/s+Ab4diL/Y/ayFeUjjA8ey+JK12xDfBf4HEs=
+github.com/billziss-gh/cgofuse v1.5.0/go.mod h1:LJjoaUojlVjgo5GQoEJTcJNqZJeRU0nCR84CyxKt2YM=

examples/memfs/go.mod

@@ -0,0 +1,5 @@
+module memfs
+
+go 1.17
+
+require github.com/billziss-gh/cgofuse v1.5.0

examples/memfs/go.sum

@@ -0,0 +1,2 @@
+github.com/billziss-gh/cgofuse v1.5.0 h1:kH516I/s+Ab4diL/Y/ayFeUjjA8ey+JK12xDfBf4HEs=
+github.com/billziss-gh/cgofuse v1.5.0/go.mod h1:LJjoaUojlVjgo5GQoEJTcJNqZJeRU0nCR84CyxKt2YM=

examples/memfs/memfs.go

@@ -8,8 +8,9 @@
  *
  * It is licensed under the MIT license. The full license text can be found
  * in the License.txt file at the root of this project.
+ * 
  */
-
+ 
 package main
 
 import (
@@ -98,6 +99,33 @@ type Memfs struct {
 	openmap map[uint64]*node_t
 }
 
+
+func (self *Memfs) Statfs(path string, stat *fuse.Statfs_t) (err int) {
+	fmt.Printf("STAT FS!!! %s\n", path)
+	stat.Bsize = 4096
+	// f_frsize
+	stat.Frsize = 4096
+
+	// 8 EB - 1
+	vtotal := (8 << 50) / stat.Frsize * 1024 - 1
+	vavail := (2 << 50) / stat.Frsize * 1024
+	vfree  := (1 << 50) / stat.Frsize * 1024
+	//used := total - free
+
+	// f_blocks
+	stat.Blocks = vtotal
+	stat.Bfree  = vfree
+	stat.Bavail = vavail
+
+	stat.Files  = 2240224
+	stat.Ffree  = 1927486
+	stat.Favail = 9900000
+
+	stat.Namemax = 255
+	return 0
+}
+
+
 func (self *Memfs) Mknod(path string, mode uint32, dev uint64) (errc int) {
 	defer trace(path, mode, dev)(&errc)
 	defer self.synchronize()()
@@ -582,8 +610,21 @@ var _ fuse.FileSystemSetcrtime = (*Memfs)(nil)
 var _ fuse.FileSystemSetchgtime = (*Memfs)(nil)
 
 func main() {
-	memfs := NewMemfs()
-	host := fuse.NewFileSystemHost(memfs)
-	host.SetCapReaddirPlus(true)
-	host.Mount("", os.Args[1:])
+	var wg sync.WaitGroup
+	cpy := 4
+	wg.Add(cpy)
+	for i := 0; i < cpy; i++ {
+		memfs := NewMemfs()
+		host := fuse.NewFileSystemHost(memfs)
+		host.SetCapReaddirPlus(true)
+		go func(i int) {
+			fmt.Printf("mount %d\n", i)
+			host.Mount("", append([]string{
+				"-o", "ExactFileSystemName=NTFS",
+				"-o", fmt.Sprintf("volname=MyVolume%d", i),
+			}, os.Args[1:]...))
+			wg.Done()
+		}(i)
+	}
+	wg.Wait()
 }

examples/notifyfs/go.mod

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+module notifyfs
+
+go 1.17
+
+require github.com/billziss-gh/cgofuse v1.5.0

examples/notifyfs/go.sum

@@ -0,0 +1,2 @@
+github.com/billziss-gh/cgofuse v1.5.0 h1:kH516I/s+Ab4diL/Y/ayFeUjjA8ey+JK12xDfBf4HEs=
+github.com/billziss-gh/cgofuse v1.5.0/go.mod h1:LJjoaUojlVjgo5GQoEJTcJNqZJeRU0nCR84CyxKt2YM=

examples/passthrough/go.mod

@@ -0,0 +1,5 @@
+module passthrough
+
+go 1.17
+
+require github.com/billziss-gh/cgofuse v1.5.0

examples/passthrough/go.sum

@@ -0,0 +1,2 @@
+github.com/billziss-gh/cgofuse v1.5.0 h1:kH516I/s+Ab4diL/Y/ayFeUjjA8ey+JK12xDfBf4HEs=
+github.com/billziss-gh/cgofuse v1.5.0/go.mod h1:LJjoaUojlVjgo5GQoEJTcJNqZJeRU0nCR84CyxKt2YM=

fuse/go.mod

@@ -0,0 +1,3 @@
+module github.com/billziss-gh/cgofuse/fuse
+
+go 1.17

go.mod

@@ -0,0 +1,3 @@
+module github.com/billziss-gh/cgofuse
+
+go 1.17