1 files changed, 27 insertions, 0 deletions
diff --git a/vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zc_mmf_unix.go b/vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zc_mmf_unix.go
new file mode 100644
index 000000000..b6c668ac6
--- /dev/null
+++ b/vendor/github.com/Azure/azure-storage-blob-go/2018-03-28/azblob/zc_mmf_unix.go
@@ -0,0 +1,27 @@
+// +build linux darwin freebsd
+
+package azblob
+
+import (
+	"os"
+	"syscall"
+)
+
+type mmf []byte
+
+func newMMF(file *os.File, writable bool, offset int64, length int) (mmf, error) {
+	prot, flags := syscall.PROT_READ, syscall.MAP_SHARED // Assume read-only
+	if writable {
+		prot, flags = syscall.PROT_READ|syscall.PROT_WRITE, syscall.MAP_SHARED
+	}
+	addr, err := syscall.Mmap(int(file.Fd()), offset, length, prot, flags)
+	return mmf(addr), err
+}
+
+func (m *mmf) unmap() {
+	err := syscall.Munmap(*m)
+	*m = nil
+	if err != nil {
+		panic(err)
+	}
+}