Panda3D
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00001 // Filename: virtualFileSimple.h 00002 // Created by: drose (03Aug02) 00003 // 00004 //////////////////////////////////////////////////////////////////// 00005 // 00006 // PANDA 3D SOFTWARE 00007 // Copyright (c) Carnegie Mellon University. All rights reserved. 00008 // 00009 // All use of this software is subject to the terms of the revised BSD 00010 // license. You should have received a copy of this license along 00011 // with this source code in a file named "LICENSE." 00012 // 00013 //////////////////////////////////////////////////////////////////// 00014 00015 #ifndef VIRTUALFILESIMPLE_H 00016 #define VIRTUALFILESIMPLE_H 00017 00018 #include "pandabase.h" 00019 00020 #include "virtualFile.h" 00021 00022 //////////////////////////////////////////////////////////////////// 00023 // Class : VirtualFileSimple 00024 // Description : A simple file or directory within the 00025 // VirtualFileSystem: this maps to exactly one file on 00026 // one mount point. Most directories, and all regular 00027 // files, are of this kind. 00028 //////////////////////////////////////////////////////////////////// 00029 class EXPCL_PANDAEXPRESS VirtualFileSimple : public VirtualFile { 00030 public: 00031 INLINE VirtualFileSimple(VirtualFileMount *mount, 00032 const Filename &local_filename, 00033 bool implicit_pz_file, 00034 int open_flags); 00035 00036 PUBLISHED: 00037 virtual VirtualFileSystem *get_file_system() const; 00038 INLINE VirtualFileMount *get_mount() const; 00039 virtual Filename get_filename() const; 00040 00041 virtual bool has_file() const; 00042 virtual bool is_directory() const; 00043 virtual bool is_regular_file() const; 00044 virtual bool is_writable() const; 00045 INLINE bool is_implicit_pz_file() const; 00046 00047 virtual bool delete_file(); 00048 virtual bool rename_file(VirtualFile *new_file); 00049 virtual bool copy_file(VirtualFile *new_file); 00050 00051 virtual istream *open_read_file(bool auto_unwrap) const; 00052 virtual void close_read_file(istream *stream) const; 00053 virtual ostream *open_write_file(bool auto_wrap, bool truncate); 00054 virtual ostream *open_append_file(); 00055 virtual void close_write_file(ostream *stream); 00056 virtual iostream *open_read_write_file(bool truncate); 00057 virtual iostream *open_read_append_file(); 00058 virtual void close_read_write_file(iostream *stream); 00059 00060 virtual off_t get_file_size(istream *stream) const; 00061 virtual off_t get_file_size() const; 00062 virtual time_t get_timestamp() const; 00063 virtual bool get_system_info(SubfileInfo &info); 00064 00065 public: 00066 virtual bool atomic_compare_and_exchange_contents(string &orig_contents, const string &old_contents, const string &new_contents); 00067 virtual bool atomic_read_contents(string &contents) const; 00068 00069 virtual bool read_file(pvector<unsigned char> &result, bool auto_unwrap) const; 00070 virtual bool write_file(const unsigned char *data, size_t data_size, bool auto_wrap); 00071 00072 protected: 00073 virtual bool scan_local_directory(VirtualFileList *file_list, 00074 const ov_set<string> &mount_points) const; 00075 00076 private: 00077 VirtualFileMount *_mount; 00078 Filename _local_filename; 00079 bool _implicit_pz_file; 00080 int _open_flags; 00081 00082 public: 00083 virtual TypeHandle get_type() const { 00084 return get_class_type(); 00085 } 00086 virtual TypeHandle force_init_type() {init_type(); return get_class_type();} 00087 00088 PUBLISHED: 00089 static TypeHandle get_class_type() { 00090 return _type_handle; 00091 } 00092 00093 public: 00094 static void init_type() { 00095 VirtualFile::init_type(); 00096 register_type(_type_handle, "VirtualFileSimple", 00097 VirtualFile::get_class_type()); 00098 } 00099 00100 private: 00101 static TypeHandle _type_handle; 00102 }; 00103 00104 #include "virtualFileSimple.I" 00105 00106 #endif