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Add multi-thread protection and also allow atomic file creates, rename upon Close()

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This commit is contained in:
Harshavardhana
2015-07-06 18:14:52 -07:00
parent c2c7bdf0cd
commit bbb89b5776
3 changed files with 78 additions and 15 deletions
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22
pkg/donut/disk/disk_test.go
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@@ -61,18 +61,24 @@ func (s *MyDiskSuite) TestDiskCreateDir(c *C) {
func (s *MyDiskSuite) TestDiskCreateFile(c *C) {
f, err := s.disk.CreateFile("hello1")
c.Assert(err, IsNil)
c.Assert(f.Name(), Equals, filepath.Join(s.path, "hello1"))
defer f.Close()
c.Assert(f.Name(), Not(Equals), filepath.Join(s.path, "hello1"))
// close renames the file
f.Close()
// Openfile should be a success
_, err = s.disk.OpenFile("hello1")
c.Assert(err, IsNil)
}
func (s *MyDiskSuite) TestDiskOpenFile(c *C) {
f, err := s.disk.CreateFile("hello2")
f1, err := s.disk.CreateFile("hello2")
c.Assert(err, IsNil)
c.Assert(f.Name(), Equals, filepath.Join(s.path, "hello2"))
defer f.Close()
c.Assert(f1.Name(), Not(Equals), filepath.Join(s.path, "hello2"))
// close renames the file
f1.Close()
f, err = s.disk.OpenFile("hello2")
f2, err := s.disk.OpenFile("hello2")
c.Assert(err, IsNil)
c.Assert(f.Name(), Equals, filepath.Join(s.path, "hello2"))
defer f.Close()
c.Assert(f2.Name(), Equals, filepath.Join(s.path, "hello2"))
defer f2.Close()
}