Rename End_of_file variable, implement platform indepenent memory_map.go

weed/storage/memory_map/memory_map.go

@@ -2,7 +2,10 @@
 
 package memory_map
 
-import "os"
+import (
+	"fmt"
+	"os"
+)
 
 type MemoryBuffer struct {
 	aligned_length uint64
@@ -17,7 +20,23 @@ type MemoryMap struct {
 	file_memory_map_handle uintptr
 	write_map_views        []MemoryBuffer
 	max_length             uint64
-	End_Of_File            int64
+	End_of_file            int64
 }
 
-var FileMemoryMap = make(map[string]MemoryMap)
+var FileMemoryMap = make(map[string]*MemoryMap)
+
+func (mMap *MemoryMap) WriteMemory(offset uint64, length uint64, data []byte) {
+
+}
+
+func (mMap *MemoryMap) ReadMemory(offset uint64, length uint64) (MemoryBuffer, error) {
+	return MemoryBuffer{}, fmt.Errorf("Memory Map not implemented for this platform")
+}
+
+func (mem_buffer *MemoryBuffer) ReleaseMemory() {
+
+}
+
+func (mMap *MemoryMap) DeleteFileAndMemoryMap() {
+
+}