lib/mmap: library to do memory allocation with anonymous memory maps

lib/mmap/mmap_unsupported.go

@@ -0,0 +1,19 @@
+// Fallback Alloc and Free for unsupported OSes
+
+// +build plan9
+
+package mmap
+
+// Alloc allocates size bytes and returns a slice containing them.  If
+// the allocation fails it will return with an error.  This is best
+// used for allocations which are a multiple of the Pagesize.
+func Alloc(size int) ([]byte, error) {
+	return make([]byte, size), nil
+}
+
+// Free frees buffers allocated by Alloc.  Note it should be passed
+// the same slice (not a derived slice) that Alloc returned.  If the
+// free fails it will return with an error.
+func Free(mem []byte) error {
+	return nil
+}