32 nassertv(_file_system ==
nullptr);
43 const Filename &original_filename,
bool implicit_pz_file,
46 if (original_filename.
is_text()) {
53 file->set_original_filename(original_filename);
55 if ((open_flags & VirtualFileSystem::OF_create_file) != 0) {
57 }
else if ((open_flags & VirtualFileSystem::OF_make_directory) != 0) {
132 vector_uchar &result)
const {
135 istream *in = open_read_file(file, do_uncompress);
138 <<
"Unable to read " << file <<
"\n";
142 std::streamsize file_size = get_file_size(file, in);
144 result.reserve((
size_t)file_size);
153 <<
"Error while reading " << file <<
"\n";
164 const unsigned char *data,
size_t data_size) {
166 if (out ==
nullptr) {
168 <<
"Unable to write " << file <<
"\n";
172 out->write((
const char *)data, data_size);
173 bool okflag = (!out->fail());
178 <<
"Error while writing " << file <<
"\n";
191 istream *VirtualFileMount::
192 open_read_file(
const Filename &file,
bool do_uncompress)
const {
193 istream *result = open_read_file(file);
196 if (result !=
nullptr && do_uncompress) {
198 IDecompressStream *wrapper =
new IDecompressStream(result,
true);
239 if (result !=
nullptr && do_compress) {
241 OCompressStream *wrapper =
new OCompressStream(result,
true);
318 const string &old_contents,
319 const string &new_contents) {
334 void VirtualFileMount::
335 output(ostream &out)
const {
342 void VirtualFileMount::
343 write(ostream &out)
const {
The name of a file, such as a texture file or an Egg file.
bool is_text() const
Returns true if the Filename has been indicated to represent a text file via a previous call to set_t...
void set_binary()
Indicates that the filename represents a binary file.
void set_text()
Indicates that the filename represents a text file.
This class records a particular byte sub-range within an existing file on disk.
TypeHandle is the identifier used to differentiate C++ class types.
virtual std::iostream * open_read_write_file(const Filename &file, bool truncate)
Opens the file for writing.
virtual bool atomic_read_contents(const Filename &file, std::string &contents) const
See Filename::atomic_read_contents().
virtual bool is_writable(const Filename &file) const
Returns true if the named file or directory may be written to, false otherwise.
const Filename & get_mount_point() const
Returns the name of the directory within the virtual file system that this mount object is attached t...
virtual bool delete_file(const Filename &file)
Attempts to delete the indicated file or directory within the mount.
virtual bool read_file(const Filename &file, bool do_uncompress, vector_uchar &result) const
Fills up the indicated pvector with the contents of the file, if it is a regular file.
virtual void close_write_file(std::ostream *stream)
Closes a file opened by a previous call to open_write_file().
virtual void close_read_write_file(std::iostream *stream)
Closes a file opened by a previous call to open_read_write_file().
virtual bool copy_file(const Filename &orig_filename, const Filename &new_filename)
Attempts to copy the contents of the indicated file to the indicated file.
virtual bool write_file(const Filename &file, bool do_compress, const unsigned char *data, size_t data_size)
Writes the indicated data to the file, if it is a writable file.
virtual std::ostream * open_write_file(const Filename &file, bool truncate)
Opens the file for writing.
virtual bool create_file(const Filename &file)
Attempts to create the indicated file within the mount, if it does not already exist.
virtual std::ostream * open_append_file(const Filename &file)
Works like open_write_file(), but the file is opened in append mode.
virtual bool get_system_info(const Filename &file, SubfileInfo &info)
Populates the SubfileInfo structure with the data representing where the file actually resides on dis...
virtual PointerTo< VirtualFile > make_virtual_file(const Filename &local_filename, const Filename &original_filename, bool implicit_pz_file, int open_flags)
Constructs and returns a new VirtualFile instance that corresponds to the indicated filename within t...
virtual bool atomic_compare_and_exchange_contents(const Filename &file, std::string &orig_contents, const std::string &old_contents, const std::string &new_contents)
See Filename::atomic_compare_and_exchange_contents().
virtual std::iostream * open_read_append_file(const Filename &file)
Works like open_read_write_file(), but the file is opened in append mode.
virtual bool rename_file(const Filename &orig_filename, const Filename &new_filename)
Attempts to rename the contents of the indicated file to the indicated file.
virtual void close_read_file(std::istream *stream) const
Closes a file opened by a previous call to open_read_file().
virtual bool make_directory(const Filename &file)
Attempts to create the indicated file within the mount, if it does not already exist.
A simple file or directory within the VirtualFileSystem: this maps to exactly one file on one mount p...
static void close_write_file(std::ostream *stream)
Closes a file opened by a previous call to open_write_file().
static void close_read_file(std::istream *stream)
Closes a file opened by a previous call to open_read_file().
static void close_read_write_file(std::iostream *stream)
Closes a file opened by a previous call to open_read_write_file().
The abstract base class for a file or directory within the VirtualFileSystem.
static bool simple_read_file(std::istream *stream, vector_uchar &result)
Fills up the indicated pvector with the contents of the just-opened file.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.