native_client_sdk/src/libraries/nacl_io/html5fs/html5_fs.h

   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 #ifndef LIBRARIES_NACL_IO_HTML5FS_HTML5_FS_H_
   6 #define LIBRARIES_NACL_IO_HTML5FS_HTML5_FS_H_
   7
   8 #include <pthread.h>
   9
  10 #include "nacl_io/filesystem.h"
  11 #include "nacl_io/pepper_interface.h"
  12 #include "nacl_io/typed_fs_factory.h"
  13 #include "sdk_util/simple_lock.h"
  14
  15 namespace nacl_io {
  16
  17 class Node;
  18
  19 class Html5Fs : public Filesystem {
  20  public:
  21   virtual Error OpenWithMode(const Path& path, int open_flags, mode_t mode,
  22                              ScopedNode* out_node);
  23   virtual Error Unlink(const Path& path);
  24   virtual Error Mkdir(const Path& path, int permissions);
  25   virtual Error Rmdir(const Path& path);
  26   virtual Error Remove(const Path& path);
  27   virtual Error Rename(const Path& path, const Path& newpath);
  28
  29   PP_Resource filesystem_resource() { return filesystem_resource_; }
  30
  31   virtual void OnNodeCreated(Node* node);
  32   virtual void OnNodeDestroyed(Node* node);
  33
  34   static ino_t HashPathSegment(ino_t hash, const char *str, size_t len);
  35   static ino_t HashPath(const Path& path);
  36
  37  protected:
  38   static const int REMOVE_DIR = 1;
  39   static const int REMOVE_FILE = 2;
  40   static const int REMOVE_ALL = REMOVE_DIR | REMOVE_FILE;
  41
  42   Html5Fs();
  43
  44   virtual Error Init(const FsInitArgs& args);
  45   virtual void Destroy();
  46
  47   virtual Error RemoveInternal(const Path& path, int remove_type);
  48   Error BlockUntilFilesystemOpen();
  49
  50  private:
  51   static void FilesystemOpenCallbackThunk(void* user_data, int32_t result);
  52   void FilesystemOpenCallback(int32_t result);
  53   Path GetFullPath(const Path& path);
  54
  55   CoreInterface* core_iface_;
  56   FileSystemInterface* filesystem_iface_;
  57   FileRefInterface* file_ref_iface_;
  58   FileIoInterface* file_io_iface_;
  59
  60   PP_Resource filesystem_resource_;
  61   bool filesystem_open_has_result_;  // protected by lock_.
  62   Error filesystem_open_error_;      // protected by lock_.
  63
  64   pthread_cond_t filesystem_open_cond_;
  65   sdk_util::SimpleLock filesysem_open_lock_;
  66   std::string prefix_;
  67
  68   friend class TypedFsFactory<Html5Fs>;
  69 };
  70
  71 }  // namespace nacl_io
  72
  73 #endif  // LIBRARIES_NACL_IO_HTML5FS_HTML5_FS_H_