package arvados
import (
+ "bytes"
+ "crypto/md5"
+ "errors"
+ "fmt"
"io"
"io/ioutil"
+ "math/rand"
"net/http"
"os"
+ "regexp"
+ "runtime"
+ "sync"
"testing"
+ "time"
"git.curoverse.com/arvados.git/sdk/go/arvadostest"
check "gopkg.in/check.v1"
type keepClientStub struct {
blocks map[string][]byte
+ sync.RWMutex
}
-func (kcs *keepClientStub) ReadAt(locator string, p []byte, off int64) (int, error) {
+var errStub404 = errors.New("404 block not found")
+
+func (kcs *keepClientStub) ReadAt(locator string, p []byte, off int) (int, error) {
+ kcs.RLock()
+ defer kcs.RUnlock()
buf := kcs.blocks[locator[:32]]
if buf == nil {
- return 0, os.ErrNotExist
+ return 0, errStub404
}
- return copy(p, buf[int(off):]), nil
+ return copy(p, buf[off:]), nil
+}
+
+func (kcs *keepClientStub) PutB(p []byte) (string, int, error) {
+ locator := fmt.Sprintf("%x+%d+A12345@abcde", md5.Sum(p), len(p))
+ buf := make([]byte, len(p))
+ copy(buf, p)
+ kcs.Lock()
+ defer kcs.Unlock()
+ kcs.blocks[locator[:32]] = buf
+ return locator, 1, nil
}
type CollectionFSSuite struct {
blocks: map[string][]byte{
"3858f62230ac3c915f300c664312c63f": []byte("foobar"),
}}
- s.fs = s.coll.FileSystem(s.client, s.kc)
+ s.fs, err = s.coll.FileSystem(s.client, s.kc)
+ c.Assert(err, check.IsNil)
}
func (s *CollectionFSSuite) TestHttpFileSystemInterface(c *check.C) {
c.Check(ok, check.Equals, true)
}
+func (s *CollectionFSSuite) TestColonInFilename(c *check.C) {
+ fs, err := (&Collection{
+ ManifestText: "./foo:foo 3858f62230ac3c915f300c664312c63f+3 0:3:bar:bar\n",
+ }).FileSystem(s.client, s.kc)
+ c.Assert(err, check.IsNil)
+
+ f, err := fs.Open("/foo:foo")
+ c.Assert(err, check.IsNil)
+
+ fis, err := f.Readdir(0)
+ c.Check(err, check.IsNil)
+ c.Check(len(fis), check.Equals, 1)
+ c.Check(fis[0].Name(), check.Equals, "bar:bar")
+}
+
func (s *CollectionFSSuite) TestReaddirFull(c *check.C) {
f, err := s.fs.Open("/dir1")
c.Assert(err, check.IsNil)
}
func (s *CollectionFSSuite) TestCreateFile(c *check.C) {
- f, err := s.fs.OpenFile("/newfile", os.O_RDWR|os.O_CREATE, 0)
+ f, err := s.fs.OpenFile("/new-file 1", os.O_RDWR|os.O_CREATE, 0)
c.Assert(err, check.IsNil)
st, err := f.Stat()
c.Assert(err, check.IsNil)
c.Check(f.Close(), check.IsNil)
- f, err = s.fs.OpenFile("/newfile", os.O_RDWR|os.O_CREATE|os.O_EXCL, 0)
+ f, err = s.fs.OpenFile("/new-file 1", os.O_RDWR|os.O_CREATE|os.O_EXCL, 0)
c.Check(f, check.IsNil)
c.Assert(err, check.NotNil)
- f, err = s.fs.OpenFile("/newfile", os.O_RDWR, 0)
+ f, err = s.fs.OpenFile("/new-file 1", os.O_RDWR, 0)
c.Assert(err, check.IsNil)
st, err = f.Stat()
c.Assert(err, check.IsNil)
c.Check(f.Close(), check.IsNil)
- // TODO: serialize to Collection, confirm manifest contents,
- // make new FileSystem, confirm file contents.
+ m, err := s.fs.MarshalManifest(".")
+ c.Check(m, check.Matches, `. 37b51d194a7513e45b56f6524f2d51f2\+3\+\S+ 0:3:new-file\\0401\n./dir1 .* 3:3:bar 0:3:foo\n`)
}
func (s *CollectionFSSuite) TestReadWriteFile(c *check.C) {
+ maxBlockSize = 8
+ defer func() { maxBlockSize = 2 << 26 }()
+
f, err := s.fs.OpenFile("/dir1/foo", os.O_RDWR, 0)
c.Assert(err, check.IsNil)
+ defer f.Close()
st, err := f.Stat()
c.Assert(err, check.IsNil)
c.Check(st.Size(), check.Equals, int64(3))
- buf := make([]byte, 4)
+ f2, err := s.fs.OpenFile("/dir1/foo", os.O_RDWR, 0)
+ c.Assert(err, check.IsNil)
+ defer f2.Close()
+
+ buf := make([]byte, 64)
n, err := f.Read(buf)
c.Check(n, check.Equals, 3)
c.Check(err, check.Equals, io.EOF)
c.Check(string(buf[:3]), check.DeepEquals, "foo")
- pos, err := f.Seek(-2, os.SEEK_CUR)
+ pos, err := f.Seek(-2, io.SeekCurrent)
c.Check(pos, check.Equals, int64(1))
c.Check(err, check.IsNil)
+ // Split a storedExtent in two, and insert a memExtent
n, err = f.Write([]byte("*"))
c.Check(n, check.Equals, 1)
c.Check(err, check.IsNil)
- pos, err = f.Seek(0, os.SEEK_CUR)
+ pos, err = f.Seek(0, io.SeekCurrent)
c.Check(pos, check.Equals, int64(2))
c.Check(err, check.IsNil)
- pos, err = f.Seek(0, os.SEEK_SET)
+ pos, err = f.Seek(0, io.SeekStart)
+ c.Check(pos, check.Equals, int64(0))
+ c.Check(err, check.IsNil)
+
+ rbuf, err := ioutil.ReadAll(f)
+ c.Check(len(rbuf), check.Equals, 3)
+ c.Check(err, check.IsNil)
+ c.Check(string(rbuf), check.Equals, "f*o")
+
+ // Write multiple blocks in one call
+ f.Seek(1, io.SeekStart)
+ n, err = f.Write([]byte("0123456789abcdefg"))
+ c.Check(n, check.Equals, 17)
+ c.Check(err, check.IsNil)
+ pos, err = f.Seek(0, io.SeekCurrent)
+ c.Check(pos, check.Equals, int64(18))
+ pos, err = f.Seek(-18, io.SeekCurrent)
+ c.Check(err, check.IsNil)
+ n, err = io.ReadFull(f, buf)
+ c.Check(n, check.Equals, 18)
+ c.Check(err, check.Equals, io.ErrUnexpectedEOF)
+ c.Check(string(buf[:n]), check.Equals, "f0123456789abcdefg")
+
+ buf2, err := ioutil.ReadAll(f2)
+ c.Check(err, check.IsNil)
+ c.Check(string(buf2), check.Equals, "f0123456789abcdefg")
+
+ // truncate to current size
+ err = f.Truncate(18)
+ f2.Seek(0, io.SeekStart)
+ buf2, err = ioutil.ReadAll(f2)
+ c.Check(err, check.IsNil)
+ c.Check(string(buf2), check.Equals, "f0123456789abcdefg")
+
+ // shrink to zero some data
+ f.Truncate(15)
+ f2.Seek(0, io.SeekStart)
+ buf2, err = ioutil.ReadAll(f2)
+ c.Check(err, check.IsNil)
+ c.Check(string(buf2), check.Equals, "f0123456789abcd")
+
+ // grow to partial block/extent
+ f.Truncate(20)
+ f2.Seek(0, io.SeekStart)
+ buf2, err = ioutil.ReadAll(f2)
+ c.Check(err, check.IsNil)
+ c.Check(string(buf2), check.Equals, "f0123456789abcd\x00\x00\x00\x00\x00")
+
+ f.Truncate(0)
+ f2.Seek(0, io.SeekStart)
+ f2.Write([]byte("12345678abcdefghijkl"))
+
+ // grow to block/extent boundary
+ f.Truncate(64)
+ f2.Seek(0, io.SeekStart)
+ buf2, err = ioutil.ReadAll(f2)
+ c.Check(err, check.IsNil)
+ c.Check(len(buf2), check.Equals, 64)
+ c.Check(len(f.(*filehandle).inode.(*filenode).segments), check.Equals, 8)
+
+ // shrink to block/extent boundary
+ err = f.Truncate(32)
+ f2.Seek(0, io.SeekStart)
+ buf2, err = ioutil.ReadAll(f2)
+ c.Check(err, check.IsNil)
+ c.Check(len(buf2), check.Equals, 32)
+ c.Check(len(f.(*filehandle).inode.(*filenode).segments), check.Equals, 4)
+
+ // shrink to partial block/extent
+ err = f.Truncate(15)
+ f2.Seek(0, io.SeekStart)
+ buf2, err = ioutil.ReadAll(f2)
+ c.Check(err, check.IsNil)
+ c.Check(string(buf2), check.Equals, "12345678abcdefg")
+ c.Check(len(f.(*filehandle).inode.(*filenode).segments), check.Equals, 2)
+
+ // Force flush to ensure the block "12345678" gets stored, so
+ // we know what to expect in the final manifest below.
+ _, err = s.fs.MarshalManifest(".")
+ c.Check(err, check.IsNil)
+
+ // Truncate to size=3 while f2's ptr is at 15
+ err = f.Truncate(3)
+ c.Check(err, check.IsNil)
+ buf2, err = ioutil.ReadAll(f2)
+ c.Check(err, check.IsNil)
+ c.Check(string(buf2), check.Equals, "")
+ f2.Seek(0, io.SeekStart)
+ buf2, err = ioutil.ReadAll(f2)
+ c.Check(err, check.IsNil)
+ c.Check(string(buf2), check.Equals, "123")
+ c.Check(len(f.(*filehandle).inode.(*filenode).segments), check.Equals, 1)
+
+ m, err := s.fs.MarshalManifest(".")
+ c.Check(err, check.IsNil)
+ m = regexp.MustCompile(`\+A[^\+ ]+`).ReplaceAllLiteralString(m, "")
+ c.Check(m, check.Equals, "./dir1 3858f62230ac3c915f300c664312c63f+6 25d55ad283aa400af464c76d713c07ad+8 3:3:bar 6:3:foo\n")
+}
+
+func (s *CollectionFSSuite) TestSeekSparse(c *check.C) {
+ fs, err := (&Collection{}).FileSystem(s.client, s.kc)
+ c.Assert(err, check.IsNil)
+ f, err := fs.OpenFile("test", os.O_CREATE|os.O_RDWR, 0755)
+ c.Assert(err, check.IsNil)
+ defer f.Close()
+
+ checkSize := func(size int64) {
+ fi, err := f.Stat()
+ c.Check(fi.Size(), check.Equals, size)
+
+ f, err := fs.OpenFile("test", os.O_CREATE|os.O_RDWR, 0755)
+ c.Assert(err, check.IsNil)
+ defer f.Close()
+ fi, err = f.Stat()
+ c.Check(fi.Size(), check.Equals, size)
+ pos, err := f.Seek(0, io.SeekEnd)
+ c.Check(pos, check.Equals, size)
+ }
+
+ f.Seek(2, io.SeekEnd)
+ checkSize(0)
+ f.Write([]byte{1})
+ checkSize(3)
+
+ f.Seek(2, io.SeekCurrent)
+ checkSize(3)
+ f.Write([]byte{})
+ checkSize(5)
+
+ f.Seek(8, io.SeekStart)
+ checkSize(5)
+ n, err := f.Read(make([]byte, 1))
+ c.Check(n, check.Equals, 0)
+ c.Check(err, check.Equals, io.EOF)
+ checkSize(5)
+ f.Write([]byte{1, 2, 3})
+ checkSize(11)
+}
+
+func (s *CollectionFSSuite) TestMarshalSmallBlocks(c *check.C) {
+ maxBlockSize = 8
+ defer func() { maxBlockSize = 2 << 26 }()
+
+ var err error
+ s.fs, err = (&Collection{}).FileSystem(s.client, s.kc)
+ c.Assert(err, check.IsNil)
+ for _, name := range []string{"foo", "bar", "baz"} {
+ f, err := s.fs.OpenFile(name, os.O_WRONLY|os.O_CREATE, 0)
+ c.Assert(err, check.IsNil)
+ f.Write([]byte(name))
+ f.Close()
+ }
+
+ m, err := s.fs.MarshalManifest(".")
+ c.Check(err, check.IsNil)
+ m = regexp.MustCompile(`\+A[^\+ ]+`).ReplaceAllLiteralString(m, "")
+ c.Check(m, check.Equals, ". c3c23db5285662ef7172373df0003206+6 acbd18db4cc2f85cedef654fccc4a4d8+3 0:3:bar 3:3:baz 6:3:foo\n")
+}
+
+func (s *CollectionFSSuite) TestMkdir(c *check.C) {
+ err := s.fs.Mkdir("foo/bar", 0755)
+ c.Check(err, check.Equals, os.ErrNotExist)
+
+ f, err := s.fs.OpenFile("foo/bar", os.O_CREATE, 0)
+ c.Check(err, check.Equals, os.ErrNotExist)
+
+ err = s.fs.Mkdir("foo", 0755)
+ c.Check(err, check.IsNil)
+
+ f, err = s.fs.OpenFile("foo/bar", os.O_CREATE|os.O_WRONLY, 0)
+ c.Check(err, check.IsNil)
+ if err == nil {
+ defer f.Close()
+ f.Write([]byte("foo"))
+ }
+
+ // mkdir fails if a file already exists with that name
+ err = s.fs.Mkdir("foo/bar", 0755)
+ c.Check(err, check.NotNil)
+
+ err = s.fs.Remove("foo/bar")
+ c.Check(err, check.IsNil)
+
+ // mkdir succeeds after the file is deleted
+ err = s.fs.Mkdir("foo/bar", 0755)
+ c.Check(err, check.IsNil)
+
+ // creating a file in a nonexistent subdir should still fail
+ f, err = s.fs.OpenFile("foo/bar/baz/foo.txt", os.O_CREATE|os.O_WRONLY, 0)
+ c.Check(err, check.Equals, os.ErrNotExist)
+
+ f, err = s.fs.OpenFile("foo/bar/foo.txt", os.O_CREATE|os.O_WRONLY, 0)
+ c.Check(err, check.IsNil)
+ if err == nil {
+ defer f.Close()
+ f.Write([]byte("foo"))
+ }
+
+ // creating foo/bar as a regular file should fail
+ f, err = s.fs.OpenFile("foo/bar", os.O_CREATE|os.O_EXCL, 0)
+ c.Check(err, check.NotNil)
+
+ // creating foo/bar as a directory should fail
+ f, err = s.fs.OpenFile("foo/bar", os.O_CREATE|os.O_EXCL, os.ModeDir)
+ c.Check(err, check.NotNil)
+ err = s.fs.Mkdir("foo/bar", 0755)
+ c.Check(err, check.NotNil)
+
+ m, err := s.fs.MarshalManifest(".")
+ c.Check(err, check.IsNil)
+ m = regexp.MustCompile(`\+A[^\+ ]+`).ReplaceAllLiteralString(m, "")
+ c.Check(m, check.Equals, "./dir1 3858f62230ac3c915f300c664312c63f+6 3:3:bar 0:3:foo\n./foo/bar acbd18db4cc2f85cedef654fccc4a4d8+3 0:3:foo.txt\n")
+}
+
+func (s *CollectionFSSuite) TestConcurrentWriters(c *check.C) {
+ maxBlockSize = 8
+ defer func() { maxBlockSize = 2 << 26 }()
+
+ var wg sync.WaitGroup
+ for n := 0; n < 128; n++ {
+ wg.Add(1)
+ go func() {
+ defer wg.Done()
+ f, err := s.fs.OpenFile("/dir1/foo", os.O_RDWR, 0)
+ c.Assert(err, check.IsNil)
+ defer f.Close()
+ for i := 0; i < 6502; i++ {
+ switch rand.Int() & 3 {
+ case 0:
+ f.Truncate(int64(rand.Intn(64)))
+ case 1:
+ f.Seek(int64(rand.Intn(64)), io.SeekStart)
+ case 2:
+ _, err := f.Write([]byte("beep boop"))
+ c.Check(err, check.IsNil)
+ case 3:
+ _, err := ioutil.ReadAll(f)
+ c.Check(err, check.IsNil)
+ }
+ }
+ }()
+ }
+ wg.Wait()
+
+ f, err := s.fs.OpenFile("/dir1/foo", os.O_RDWR, 0)
+ c.Assert(err, check.IsNil)
+ defer f.Close()
+ buf, err := ioutil.ReadAll(f)
+ c.Check(err, check.IsNil)
+ c.Logf("after lots of random r/w/seek/trunc, buf is %q", buf)
+}
+
+func (s *CollectionFSSuite) TestRandomWrites(c *check.C) {
+ maxBlockSize = 40
+ defer func() { maxBlockSize = 2 << 26 }()
+
+ var err error
+ s.fs, err = (&Collection{}).FileSystem(s.client, s.kc)
+ c.Assert(err, check.IsNil)
+
+ const nfiles = 256
+ const ngoroutines = 256
+
+ var wg sync.WaitGroup
+ for n := 0; n < nfiles; n++ {
+ wg.Add(1)
+ go func(n int) {
+ defer wg.Done()
+ expect := make([]byte, 0, 64)
+ wbytes := []byte("there's no simple explanation for anything important that any of us do")
+ f, err := s.fs.OpenFile(fmt.Sprintf("random-%d", n), os.O_RDWR|os.O_CREATE|os.O_EXCL, 0)
+ c.Assert(err, check.IsNil)
+ defer f.Close()
+ for i := 0; i < ngoroutines; i++ {
+ trunc := rand.Intn(65)
+ woff := rand.Intn(trunc + 1)
+ wbytes = wbytes[:rand.Intn(64-woff+1)]
+ for buf, i := expect[:cap(expect)], len(expect); i < trunc; i++ {
+ buf[i] = 0
+ }
+ expect = expect[:trunc]
+ if trunc < woff+len(wbytes) {
+ expect = expect[:woff+len(wbytes)]
+ }
+ copy(expect[woff:], wbytes)
+ f.Truncate(int64(trunc))
+ pos, err := f.Seek(int64(woff), io.SeekStart)
+ c.Check(pos, check.Equals, int64(woff))
+ c.Check(err, check.IsNil)
+ n, err := f.Write(wbytes)
+ c.Check(n, check.Equals, len(wbytes))
+ c.Check(err, check.IsNil)
+ pos, err = f.Seek(0, io.SeekStart)
+ c.Check(pos, check.Equals, int64(0))
+ c.Check(err, check.IsNil)
+ buf, err := ioutil.ReadAll(f)
+ c.Check(string(buf), check.Equals, string(expect))
+ c.Check(err, check.IsNil)
+ }
+ s.checkMemSize(c, f)
+ }(n)
+ }
+ wg.Wait()
+
+ root, err := s.fs.Open("/")
+ c.Assert(err, check.IsNil)
+ defer root.Close()
+ fi, err := root.Readdir(-1)
+ c.Check(err, check.IsNil)
+ c.Check(len(fi), check.Equals, nfiles)
+
+ _, err = s.fs.MarshalManifest(".")
+ c.Check(err, check.IsNil)
+ // TODO: check manifest content
+}
+
+func (s *CollectionFSSuite) TestRemove(c *check.C) {
+ fs, err := (&Collection{}).FileSystem(s.client, s.kc)
+ c.Assert(err, check.IsNil)
+ err = fs.Mkdir("dir0", 0755)
+ c.Assert(err, check.IsNil)
+ err = fs.Mkdir("dir1", 0755)
+ c.Assert(err, check.IsNil)
+ err = fs.Mkdir("dir1/dir2", 0755)
+ c.Assert(err, check.IsNil)
+ err = fs.Mkdir("dir1/dir3", 0755)
+ c.Assert(err, check.IsNil)
+
+ err = fs.Remove("dir0")
+ c.Check(err, check.IsNil)
+ err = fs.Remove("dir0")
+ c.Check(err, check.Equals, os.ErrNotExist)
+
+ err = fs.Remove("dir1/dir2/.")
+ c.Check(err, check.Equals, ErrInvalidArgument)
+ err = fs.Remove("dir1/dir2/..")
+ c.Check(err, check.Equals, ErrInvalidArgument)
+ err = fs.Remove("dir1")
+ c.Check(err, check.Equals, ErrDirectoryNotEmpty)
+ err = fs.Remove("dir1/dir2/../../../dir1")
+ c.Check(err, check.Equals, ErrDirectoryNotEmpty)
+ err = fs.Remove("dir1/dir3/")
+ c.Check(err, check.IsNil)
+ err = fs.RemoveAll("dir1")
+ c.Check(err, check.IsNil)
+ err = fs.RemoveAll("dir1")
+ c.Check(err, check.IsNil)
+}
+
+func (s *CollectionFSSuite) TestRenameError(c *check.C) {
+ fs, err := (&Collection{}).FileSystem(s.client, s.kc)
+ c.Assert(err, check.IsNil)
+ err = fs.Mkdir("first", 0755)
+ c.Assert(err, check.IsNil)
+ err = fs.Mkdir("first/second", 0755)
+ c.Assert(err, check.IsNil)
+ f, err := fs.OpenFile("first/second/file", os.O_CREATE|os.O_WRONLY, 0755)
+ c.Assert(err, check.IsNil)
+ f.Write([]byte{1, 2, 3, 4, 5})
+ f.Close()
+ err = fs.Rename("first", "first/second/third")
+ c.Check(err, check.Equals, ErrInvalidArgument)
+ err = fs.Rename("first", "first/third")
+ c.Check(err, check.Equals, ErrInvalidArgument)
+ err = fs.Rename("first/second", "second")
+ c.Check(err, check.IsNil)
+ f, err = fs.OpenFile("second/file", 0, 0)
+ c.Assert(err, check.IsNil)
+ data, err := ioutil.ReadAll(f)
+ c.Check(err, check.IsNil)
+ c.Check(data, check.DeepEquals, []byte{1, 2, 3, 4, 5})
+}
+
+func (s *CollectionFSSuite) TestRename(c *check.C) {
+ fs, err := (&Collection{}).FileSystem(s.client, s.kc)
+ c.Assert(err, check.IsNil)
+ const (
+ outer = 16
+ inner = 16
+ )
+ for i := 0; i < outer; i++ {
+ err = fs.Mkdir(fmt.Sprintf("dir%d", i), 0755)
+ c.Assert(err, check.IsNil)
+ for j := 0; j < inner; j++ {
+ err = fs.Mkdir(fmt.Sprintf("dir%d/dir%d", i, j), 0755)
+ c.Assert(err, check.IsNil)
+ for _, fnm := range []string{
+ fmt.Sprintf("dir%d/file%d", i, j),
+ fmt.Sprintf("dir%d/dir%d/file%d", i, j, j),
+ } {
+ f, err := fs.OpenFile(fnm, os.O_CREATE|os.O_WRONLY, 0755)
+ c.Assert(err, check.IsNil)
+ _, err = f.Write([]byte("beep"))
+ c.Assert(err, check.IsNil)
+ f.Close()
+ }
+ }
+ }
+ var wg sync.WaitGroup
+ for i := 0; i < outer; i++ {
+ for j := 0; j < inner; j++ {
+ wg.Add(1)
+ go func(i, j int) {
+ defer wg.Done()
+ oldname := fmt.Sprintf("dir%d/dir%d/file%d", i, j, j)
+ newname := fmt.Sprintf("dir%d/newfile%d", i, inner-j-1)
+ _, err := fs.Open(newname)
+ c.Check(err, check.Equals, os.ErrNotExist)
+ err = fs.Rename(oldname, newname)
+ c.Check(err, check.IsNil)
+ f, err := fs.Open(newname)
+ c.Check(err, check.IsNil)
+ f.Close()
+ }(i, j)
+
+ wg.Add(1)
+ go func(i, j int) {
+ defer wg.Done()
+ // oldname does not exist
+ err := fs.Rename(
+ fmt.Sprintf("dir%d/dir%d/missing", i, j),
+ fmt.Sprintf("dir%d/dir%d/file%d", outer-i-1, j, j))
+ c.Check(err, check.ErrorMatches, `.*does not exist`)
+
+ // newname parent dir does not exist
+ err = fs.Rename(
+ fmt.Sprintf("dir%d/dir%d", i, j),
+ fmt.Sprintf("dir%d/missing/irrelevant", outer-i-1))
+ c.Check(err, check.ErrorMatches, `.*does not exist`)
+
+ // oldname parent dir is a file
+ err = fs.Rename(
+ fmt.Sprintf("dir%d/file%d/patherror", i, j),
+ fmt.Sprintf("dir%d/irrelevant", i))
+ c.Check(err, check.ErrorMatches, `.*does not exist`)
+
+ // newname parent dir is a file
+ err = fs.Rename(
+ fmt.Sprintf("dir%d/dir%d/file%d", i, j, j),
+ fmt.Sprintf("dir%d/file%d/patherror", i, inner-j-1))
+ c.Check(err, check.ErrorMatches, `.*does not exist`)
+ }(i, j)
+ }
+ }
+ wg.Wait()
+
+ f, err := fs.OpenFile("dir1/newfile3", 0, 0)
+ c.Assert(err, check.IsNil)
+ c.Check(f.Size(), check.Equals, int64(4))
+ buf, err := ioutil.ReadAll(f)
+ c.Check(buf, check.DeepEquals, []byte("beep"))
+ c.Check(err, check.IsNil)
+ _, err = fs.Open("dir1/dir1/file1")
+ c.Check(err, check.Equals, os.ErrNotExist)
+}
+
+func (s *CollectionFSSuite) TestPersist(c *check.C) {
+ maxBlockSize = 1024
+ defer func() { maxBlockSize = 2 << 26 }()
+
+ var err error
+ s.fs, err = (&Collection{}).FileSystem(s.client, s.kc)
+ c.Assert(err, check.IsNil)
+ err = s.fs.Mkdir("d:r", 0755)
+ c.Assert(err, check.IsNil)
+
+ expect := map[string][]byte{}
+
+ var wg sync.WaitGroup
+ for _, name := range []string{"random 1", "random:2", "random\\3", "d:r/random4"} {
+ buf := make([]byte, 500)
+ rand.Read(buf)
+ expect[name] = buf
+
+ f, err := s.fs.OpenFile(name, os.O_WRONLY|os.O_CREATE, 0)
+ c.Assert(err, check.IsNil)
+ // Note: we don't close the file until after the test
+ // is done. Writes to unclosed files should persist.
+ defer f.Close()
+
+ wg.Add(1)
+ go func() {
+ defer wg.Done()
+ for i := 0; i < len(buf); i += 5 {
+ _, err := f.Write(buf[i : i+5])
+ c.Assert(err, check.IsNil)
+ }
+ }()
+ }
+ wg.Wait()
+
+ m, err := s.fs.MarshalManifest(".")
+ c.Check(err, check.IsNil)
+ c.Logf("%q", m)
+
+ root, err := s.fs.Open("/")
+ c.Assert(err, check.IsNil)
+ defer root.Close()
+ fi, err := root.Readdir(-1)
+ c.Check(err, check.IsNil)
+ c.Check(len(fi), check.Equals, 4)
+
+ persisted, err := (&Collection{ManifestText: m}).FileSystem(s.client, s.kc)
+ c.Assert(err, check.IsNil)
+
+ root, err = persisted.Open("/")
+ c.Assert(err, check.IsNil)
+ defer root.Close()
+ fi, err = root.Readdir(-1)
+ c.Check(err, check.IsNil)
+ c.Check(len(fi), check.Equals, 4)
+
+ for name, content := range expect {
+ c.Logf("read %q", name)
+ f, err := persisted.Open(name)
+ c.Assert(err, check.IsNil)
+ defer f.Close()
+ buf, err := ioutil.ReadAll(f)
+ c.Check(err, check.IsNil)
+ c.Check(buf, check.DeepEquals, content)
+ }
+}
+
+func (s *CollectionFSSuite) TestPersistEmptyFiles(c *check.C) {
+ var err error
+ s.fs, err = (&Collection{}).FileSystem(s.client, s.kc)
+ c.Assert(err, check.IsNil)
+ for _, name := range []string{"dir", "dir/zerodir", "zero", "zero/zero"} {
+ err = s.fs.Mkdir(name, 0755)
+ c.Assert(err, check.IsNil)
+ }
+
+ expect := map[string][]byte{
+ "0": nil,
+ "00": []byte{},
+ "one": []byte{1},
+ "dir/0": nil,
+ "dir/two": []byte{1, 2},
+ "dir/zero": nil,
+ "dir/zerodir/zero": nil,
+ "zero/zero/zero": nil,
+ }
+ for name, data := range expect {
+ f, err := s.fs.OpenFile(name, os.O_WRONLY|os.O_CREATE, 0)
+ c.Assert(err, check.IsNil)
+ if data != nil {
+ _, err := f.Write(data)
+ c.Assert(err, check.IsNil)
+ }
+ f.Close()
+ }
+
+ m, err := s.fs.MarshalManifest(".")
+ c.Check(err, check.IsNil)
+ c.Logf("%q", m)
+
+ persisted, err := (&Collection{ManifestText: m}).FileSystem(s.client, s.kc)
+ c.Assert(err, check.IsNil)
+
+ for name, data := range expect {
+ f, err := persisted.Open("bogus-" + name)
+ c.Check(err, check.NotNil)
+
+ f, err = persisted.Open(name)
+ c.Assert(err, check.IsNil)
+
+ if data == nil {
+ data = []byte{}
+ }
+ buf, err := ioutil.ReadAll(f)
+ c.Check(err, check.IsNil)
+ c.Check(buf, check.DeepEquals, data)
+ }
+}
+
+func (s *CollectionFSSuite) TestOpenFileFlags(c *check.C) {
+ fs, err := (&Collection{}).FileSystem(s.client, s.kc)
+ c.Assert(err, check.IsNil)
+
+ f, err := fs.OpenFile("missing", os.O_WRONLY, 0)
+ c.Check(f, check.IsNil)
+ c.Check(err, check.ErrorMatches, `file does not exist`)
+
+ f, err = fs.OpenFile("new", os.O_CREATE|os.O_RDONLY, 0)
+ c.Assert(err, check.IsNil)
+ defer f.Close()
+ n, err := f.Write([]byte{1, 2, 3})
+ c.Check(n, check.Equals, 0)
+ c.Check(err, check.ErrorMatches, `read-only file`)
+ n, err = f.Read(make([]byte, 1))
+ c.Check(n, check.Equals, 0)
+ c.Check(err, check.Equals, io.EOF)
+ f, err = fs.OpenFile("new", os.O_RDWR, 0)
+ c.Assert(err, check.IsNil)
+ defer f.Close()
+ _, err = f.Write([]byte{4, 5, 6})
+ c.Check(err, check.IsNil)
+ fi, err := f.Stat()
+ c.Assert(err, check.IsNil)
+ c.Check(fi.Size(), check.Equals, int64(3))
+
+ f, err = fs.OpenFile("new", os.O_TRUNC|os.O_RDWR, 0)
+ c.Assert(err, check.IsNil)
+ defer f.Close()
+ pos, err := f.Seek(0, io.SeekEnd)
+ c.Check(pos, check.Equals, int64(0))
+ c.Check(err, check.IsNil)
+ fi, err = f.Stat()
+ c.Assert(err, check.IsNil)
+ c.Check(fi.Size(), check.Equals, int64(0))
+ fs.Remove("new")
+
+ buf := make([]byte, 64)
+ f, err = fs.OpenFile("append", os.O_EXCL|os.O_CREATE|os.O_RDWR|os.O_APPEND, 0)
+ c.Assert(err, check.IsNil)
+ f.Write([]byte{1, 2, 3})
+ f.Seek(0, io.SeekStart)
+ n, _ = f.Read(buf[:1])
+ c.Check(n, check.Equals, 1)
+ c.Check(buf[:1], check.DeepEquals, []byte{1})
+ pos, err = f.Seek(0, io.SeekCurrent)
+ c.Check(pos, check.Equals, int64(1))
+ f.Write([]byte{4, 5, 6})
+ pos, err = f.Seek(0, io.SeekCurrent)
+ c.Check(pos, check.Equals, int64(6))
+ f.Seek(0, io.SeekStart)
+ n, err = f.Read(buf)
+ c.Check(buf[:n], check.DeepEquals, []byte{1, 2, 3, 4, 5, 6})
+ c.Check(err, check.Equals, io.EOF)
+ f.Close()
+
+ f, err = fs.OpenFile("append", os.O_RDWR|os.O_APPEND, 0)
+ c.Assert(err, check.IsNil)
+ pos, err = f.Seek(0, io.SeekCurrent)
+ c.Check(pos, check.Equals, int64(0))
+ c.Check(err, check.IsNil)
+ f.Read(buf[:3])
+ pos, _ = f.Seek(0, io.SeekCurrent)
+ c.Check(pos, check.Equals, int64(3))
+ f.Write([]byte{7, 8, 9})
+ pos, err = f.Seek(0, io.SeekCurrent)
+ c.Check(pos, check.Equals, int64(9))
+ f.Close()
+
+ f, err = fs.OpenFile("wronly", os.O_CREATE|os.O_WRONLY, 0)
+ c.Assert(err, check.IsNil)
+ n, err = f.Write([]byte{3, 2, 1})
+ c.Check(n, check.Equals, 3)
+ c.Check(err, check.IsNil)
+ pos, _ = f.Seek(0, io.SeekCurrent)
+ c.Check(pos, check.Equals, int64(3))
+ pos, _ = f.Seek(0, io.SeekStart)
c.Check(pos, check.Equals, int64(0))
+ n, err = f.Read(buf)
+ c.Check(n, check.Equals, 0)
+ c.Check(err, check.ErrorMatches, `.*O_WRONLY.*`)
+ f, err = fs.OpenFile("wronly", os.O_RDONLY, 0)
+ c.Assert(err, check.IsNil)
+ n, _ = f.Read(buf)
+ c.Check(buf[:n], check.DeepEquals, []byte{3, 2, 1})
+
+ f, err = fs.OpenFile("unsupported", os.O_CREATE|os.O_SYNC, 0)
+ c.Check(f, check.IsNil)
+ c.Check(err, check.NotNil)
+
+ f, err = fs.OpenFile("append", os.O_RDWR|os.O_WRONLY, 0)
+ c.Check(f, check.IsNil)
+ c.Check(err, check.ErrorMatches, `invalid flag.*`)
+}
+
+func (s *CollectionFSSuite) TestFlushFullBlocks(c *check.C) {
+ maxBlockSize = 1024
+ defer func() { maxBlockSize = 2 << 26 }()
+
+ fs, err := (&Collection{}).FileSystem(s.client, s.kc)
+ c.Assert(err, check.IsNil)
+ f, err := fs.OpenFile("50K", os.O_WRONLY|os.O_CREATE, 0)
+ c.Assert(err, check.IsNil)
+ defer f.Close()
+
+ data := make([]byte, 500)
+ rand.Read(data)
+
+ for i := 0; i < 100; i++ {
+ n, err := f.Write(data)
+ c.Assert(n, check.Equals, len(data))
+ c.Assert(err, check.IsNil)
+ }
+
+ currentMemExtents := func() (memExtents []int) {
+ for idx, e := range f.(*filehandle).inode.(*filenode).segments {
+ switch e.(type) {
+ case *memSegment:
+ memExtents = append(memExtents, idx)
+ }
+ }
+ return
+ }
+ c.Check(currentMemExtents(), check.HasLen, 1)
+
+ m, err := fs.MarshalManifest(".")
+ c.Check(m, check.Matches, `[^:]* 0:50000:50K\n`)
c.Check(err, check.IsNil)
+ c.Check(currentMemExtents(), check.HasLen, 0)
+}
+
+func (s *CollectionFSSuite) TestBrokenManifests(c *check.C) {
+ for _, txt := range []string{
+ "\n",
+ ".\n",
+ ". \n",
+ ". d41d8cd98f00b204e9800998ecf8427e+0\n",
+ ". d41d8cd98f00b204e9800998ecf8427e+0 \n",
+ ". 0:0:foo\n",
+ ". 0:0:foo\n",
+ ". 0:0:foo 0:0:bar\n",
+ ". d41d8cd98f00b204e9800998ecf8427e 0:0:foo\n",
+ ". d41d8cd98f00b204e9800998ecf8427e+0 :0:0:foo\n",
+ ". d41d8cd98f00b204e9800998ecf8427e+0 foo:0:foo\n",
+ ". d41d8cd98f00b204e9800998ecf8427e+0 0:foo:foo\n",
+ ". d41d8cd98f00b204e9800998ecf8427e+1 0:1:foo 1:1:bar\n",
+ ". d41d8cd98f00b204e9800998ecf8427e+1 0:0:foo\n./foo d41d8cd98f00b204e9800998ecf8427e+1 0:0:bar\n",
+ "./foo d41d8cd98f00b204e9800998ecf8427e+1 0:0:bar\n. d41d8cd98f00b204e9800998ecf8427e+1 0:0:foo\n",
+ } {
+ c.Logf("<-%q", txt)
+ fs, err := (&Collection{ManifestText: txt}).FileSystem(s.client, s.kc)
+ c.Check(fs, check.IsNil)
+ c.Logf("-> %s", err)
+ c.Check(err, check.NotNil)
+ }
+}
+
+func (s *CollectionFSSuite) TestEdgeCaseManifests(c *check.C) {
+ for _, txt := range []string{
+ "",
+ ". d41d8cd98f00b204e9800998ecf8427e+0 0:0:foo\n",
+ ". d41d8cd98f00b204e9800998ecf8427e+0 0:0:foo 0:0:foo 0:0:bar\n",
+ ". d41d8cd98f00b204e9800998ecf8427e+0 0:0:foo 0:0:foo 0:0:bar\n",
+ ". d41d8cd98f00b204e9800998ecf8427e+0 0:0:foo/bar\n./foo d41d8cd98f00b204e9800998ecf8427e+0 0:0:bar\n",
+ } {
+ c.Logf("<-%q", txt)
+ fs, err := (&Collection{ManifestText: txt}).FileSystem(s.client, s.kc)
+ c.Check(err, check.IsNil)
+ c.Check(fs, check.NotNil)
+ }
+}
+
+func (s *CollectionFSSuite) checkMemSize(c *check.C, f File) {
+ fn := f.(*filehandle).inode.(*filenode)
+ var memsize int64
+ for _, seg := range fn.segments {
+ if e, ok := seg.(*memSegment); ok {
+ memsize += int64(len(e.buf))
+ }
+ }
+ c.Check(fn.memsize, check.Equals, memsize)
+}
+
+type CollectionFSUnitSuite struct{}
- buf = make([]byte, 4)
- buf, err = ioutil.ReadAll(f)
- c.Check(len(buf), check.Equals, 3)
+var _ = check.Suite(&CollectionFSUnitSuite{})
+
+// expect ~2 seconds to load a manifest with 256K files
+func (s *CollectionFSUnitSuite) TestLargeManifest(c *check.C) {
+ const (
+ dirCount = 512
+ fileCount = 512
+ )
+
+ mb := bytes.NewBuffer(make([]byte, 0, 40000000))
+ for i := 0; i < dirCount; i++ {
+ fmt.Fprintf(mb, "./dir%d", i)
+ for j := 0; j <= fileCount; j++ {
+ fmt.Fprintf(mb, " %032x+42+A%040x@%08x", j, j, j)
+ }
+ for j := 0; j < fileCount; j++ {
+ fmt.Fprintf(mb, " %d:%d:dir%d/file%d", j*42+21, 42, j, j)
+ }
+ mb.Write([]byte{'\n'})
+ }
+ coll := Collection{ManifestText: mb.String()}
+ c.Logf("%s built", time.Now())
+
+ var memstats runtime.MemStats
+ runtime.ReadMemStats(&memstats)
+ c.Logf("%s Alloc=%d Sys=%d", time.Now(), memstats.Alloc, memstats.Sys)
+
+ f, err := coll.FileSystem(nil, nil)
c.Check(err, check.IsNil)
- c.Check(string(buf), check.Equals, "f*o")
+ c.Logf("%s loaded", time.Now())
+
+ for i := 0; i < dirCount; i++ {
+ for j := 0; j < fileCount; j++ {
+ f.Stat(fmt.Sprintf("./dir%d/dir%d/file%d", i, j, j))
+ }
+ }
+ c.Logf("%s Stat() x %d", time.Now(), dirCount*fileCount)
+
+ runtime.ReadMemStats(&memstats)
+ c.Logf("%s Alloc=%d Sys=%d", time.Now(), memstats.Alloc, memstats.Sys)
}
// Gocheck boilerplate
projects / arvados.git / blobdiff