From 8700bf64687742ac43f8fec599d1ea71387b7936 Mon Sep 17 00:00:00 2001
From: Soumith Chintala <soumith@gmail.com>
Date: Mon, 18 Apr 2016 14:59:12 -0400
Subject: Revert "Fix pointer overflows in all cases in sharedserialize"

---
 sharedserialize.lua | 37 +++++++++++++++----------------------
 1 file changed, 15 insertions(+), 22 deletions(-)

diff --git a/sharedserialize.lua b/sharedserialize.lua
index 2a966fd..9cd8ebf 100644
--- a/sharedserialize.lua
+++ b/sharedserialize.lua
@@ -8,32 +8,16 @@ local _, tds = pcall(require, 'tds') -- for the free/retain functions
 if tds then
    local ffi = require 'ffi'
 
-   local function serializePointer(obj, f)
-      if ffi.sizeof('long') == 4 then
-         f:writeDouble(torch.pointer(obj))
-      else
-         f:writeLong(torch.pointer(obj))
-      end
-   end
-
-   local function deserializePointer(f)
-      if ffi.sizeof('long') == 4 then
-         return f:readDouble()
-      else
-         return f:readLong()
-      end
-   end
-
    -- hash
    local mt = {}
    function mt.__factory(f)
-      local self = deserializePointer(f)
+      local self = f:readLong()
       self = ffi.cast('tds_hash&', self)
       ffi.gc(self, tds.C.tds_hash_free)
       return self
    end
    function mt.__write(self, f)
-      serializePointer(self, f)
+      f:writeLong(torch.pointer(self))
       tds.C.tds_hash_retain(self)
    end
    function mt.__read(self, f)
@@ -43,13 +27,22 @@ if tds then
    -- vec
    local mt = {}
    function mt.__factory(f)
-      local self = deserializePointer(f)
+      local self
+      if ffi.sizeof('long') == 4 then
+         self = f:readDouble()
+      else
+         self = f:readLong()
+      end
       self = ffi.cast('tds_vec&', self)
       ffi.gc(self, tds.C.tds_vec_free)
       return self
    end
    function mt.__write(self, f)
-      serializePointer(self, f)
+      if ffi.sizeof('long') == 4 then
+         f:writeDouble(torch.pointer(self))
+      else
+         f:writeLong(torch.pointer(self))
+      end
       tds.C.tds_vec_retain(self)
    end
    function mt.__read(self, f)
@@ -80,13 +73,13 @@ for _, typename in ipairs{
    local mt = {}
 
    function mt.__factory(f)
-      local self = deserializePointer(f)
+      local self = f:readLong()
       self = torch.pushudata(self, typename)
       return self
    end
 
    function mt.write(self, f)
-      serializePointer(self, f)
+      f:writeLong(torch.pointer(self))
       if typename ~= 'torch.Allocator' then
          self:retain()
       end
-- 
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