native_client_sdk/src/libraries/nacl_io/passthroughfs/passthrough_fs.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "nacl_io/passthroughfs/passthrough_fs.h"
   6
   7 #include <errno.h>
   8
   9 #include "nacl_io/kernel_handle.h"
  10 #include "nacl_io/kernel_wrap_real.h"
  11 #include "nacl_io/passthroughfs/real_node.h"
  12
  13 namespace nacl_io {
  14
  15 PassthroughFs::PassthroughFs() {
  16 }
  17
  18 Error PassthroughFs::Init(const FsInitArgs& args) {
  19   return Filesystem::Init(args);
  20 }
  21
  22 void PassthroughFs::Destroy() {
  23 }
  24
  25 Error PassthroughFs::OpenWithMode(const Path& path, int open_flags,
  26                                   mode_t mode, ScopedNode* out_node) {
  27   out_node->reset(NULL);
  28   int real_fd;
  29   int error = _real_open(path.Join().c_str(), open_flags, mode, &real_fd);
  30   if (error)
  31     return error;
  32
  33   out_node->reset(new RealNode(this, real_fd, true));
  34   return 0;
  35 }
  36
  37 Error PassthroughFs::OpenResource(const Path& path, ScopedNode* out_node) {
  38   int real_fd;
  39   out_node->reset(NULL);
  40   int error = _real_open_resource(path.Join().c_str(), &real_fd);
  41   if (error)
  42     return error;
  43
  44   out_node->reset(new RealNode(this, real_fd));
  45   return 0;
  46 }
  47
  48 Error PassthroughFs::Unlink(const Path& path) {
  49   // Not implemented by NaCl.
  50   return ENOSYS;
  51 }
  52
  53 Error PassthroughFs::Mkdir(const Path& path, int perm) {
  54   return _real_mkdir(path.Join().c_str(), perm);
  55 }
  56
  57 Error PassthroughFs::Rmdir(const Path& path) {
  58   return _real_rmdir(path.Join().c_str());
  59 }
  60
  61 Error PassthroughFs::Remove(const Path& path) {
  62   // Not implemented by NaCl.
  63   return ENOSYS;
  64 }
  65
  66 Error PassthroughFs::Rename(const Path& path, const Path& newpath) {
  67   // Not implemented by NaCl.
  68   return ENOSYS;
  69 }
  70
  71 }  // namespace nacl_io