[NaCl SDK] Upate atomic ops in nacl_io

native_client_sdk/src/libraries/nacl_io/mount_dev.cc

 /* Copyright (c) 2013 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #if defined(WIN32)
 #define _CRT_RAND_S
 #endif
 
 #include <errno.h>
 #include <fcntl.h>
@@ skipping 216 matching lines @@
   uint32_t len = static_cast<uint32_t>(message.size());
   struct PP_Var val = var_intr->VarFromUtf8(message.data(), len);
   msg_intr->PostMessage(mount_->ppapi()->GetInstance(), val);
   *out_bytes = count;
   return 0;
 }
 
 Error TtyNode::Read(size_t offs, void* buf, size_t count, int* out_bytes) {
   AutoLock lock(&lock_);
   while (input_buffer_.size() <= 0) {
-    pthread_cond_wait(&is_readable_, &lock_);
+    pthread_cond_wait(&is_readable_, lock_);
   }
 
   // Copies data from the input buffer into buf.
   size_t bytes_to_copy = std::min(count, input_buffer_.size());
   std::copy(input_buffer_.begin(), input_buffer_.begin() + bytes_to_copy,
             static_cast<char*>(buf));
   *out_bytes = bytes_to_copy;
   input_buffer_.erase(input_buffer_.begin(),
                       input_buffer_.begin() + bytes_to_copy);
   return 0;
@@ skipping 108 matching lines @@
 
   // Don't allow execute access.
   if (a_mode & X_OK)
     return EACCES;
 
   return 0;
 }
 
 Error MountDev::Open(const Path& path, int mode, ScopedMountNode* out_node) {
   out_node->reset(NULL);
-  AutoLock lock(&lock_);
 
   // Don't allow creating any files.
   if (mode & O_CREAT)
     return EINVAL;
 
   return root_->FindChild(path.Join(), out_node);
 }
 
 Error MountDev::Unlink(const Path& path) { return EINVAL; }
 
@@ skipping 30 matching lines @@
   INITIALIZE_DEV_NODE_1("/console2", ConsoleNode, PP_LOGLEVEL_WARNING);
   INITIALIZE_DEV_NODE_1("/console3", ConsoleNode, PP_LOGLEVEL_ERROR);
   INITIALIZE_DEV_NODE("/tty", TtyNode);
   INITIALIZE_DEV_NODE_1("/stdin", RealNode, 0);
   INITIALIZE_DEV_NODE_1("/stdout", RealNode, 1);
   INITIALIZE_DEV_NODE_1("/stderr", RealNode, 2);
 
   return 0;
 }