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authorSantiago M. Mola <santi@mola.io>2016-11-11 16:31:04 +0100
committerMáximo Cuadros <mcuadros@gmail.com>2016-11-11 16:31:04 +0100
commit3e7f535beae601d334186f7316af957bc24bd865 (patch)
tree4f1fb5da0c743070b939bd1edfe31157009c915f /utils/fs/memory
parentac095bb12c4d29722b60ba9f20590fa7cfa6bc7d (diff)
downloadgo-git-3e7f535beae601d334186f7316af957bc24bd865.tar.gz
utils/fs: add ReadAt to memory file and tests. (#122)
* memory files now implement io.ReaderAt. * tests now check ReadAt behaviour.
Diffstat (limited to 'utils/fs/memory')
-rw-r--r--utils/fs/memory/memory.go12
1 files changed, 11 insertions, 1 deletions
diff --git a/utils/fs/memory/memory.go b/utils/fs/memory/memory.go
index 08a9599..ef54c37 100644
--- a/utils/fs/memory/memory.go
+++ b/utils/fs/memory/memory.go
@@ -189,6 +189,16 @@ func newFile(base, fullpath string, flag int) *file {
}
func (f *file) Read(b []byte) (int, error) {
+ n, err := f.ReadAt(b, f.position)
+ if err != nil {
+ return 0, err
+ }
+
+ f.position += int64(n)
+ return n, err
+}
+
+func (f *file) ReadAt(b []byte, off int64) (int, error) {
if f.IsClosed() {
return 0, fs.ErrClosed
}
@@ -197,7 +207,7 @@ func (f *file) Read(b []byte) (int, error) {
return 0, errors.New("read not supported")
}
- n, err := f.content.ReadAt(b, f.position)
+ n, err := f.content.ReadAt(b, off)
f.position += int64(n)
return n, err