#include <memory_file.h>

Inheritance diagram for shaka::MemoryFile:

Public Member Functions
	MemoryFile (const std::string &file_name, const std::string &mode)

File implementation overrides.
bool	Close () override

int64_t	Read (void *buffer, uint64_t length) override

int64_t	Write (const void *buffer, uint64_t length) override

int64_t	Size () override

bool	Flush () override

bool	Seek (uint64_t position) override

bool	Tell (uint64_t *position) override

Public Member Functions inherited from shaka::File
const std::string &	file_name () const

Static Public Member Functions
static void	DeleteAll ()

static void	Delete (const std::string &file_name)

Static Public Member Functions inherited from shaka::File
static File *	Open (const char file_name, const char mode)

static File *	OpenWithNoBuffering (const char file_name, const char mode)

static bool	Delete (const char *file_name)

static int64_t	GetFileSize (const char *file_name)

static bool	ReadFileToString (const char file_name, std::string contents)

static bool	WriteStringToFile (const char *file_name, const std::string &contents)

static bool	WriteFileAtomically (const char *file_name, const std::string &contents)

static bool	Copy (const char from_file_name, const char to_file_name)

static int64_t	CopyFile (File source, File destination)

static int64_t	CopyFile (File source, File destination, int64_t max_copy)

static std::string	MakeCallbackFileName (const BufferCallbackParams &callback_params, const std::string &name)

static bool	ParseCallbackFileName (const std::string &callback_file_name, const BufferCallbackParams *callback_params, std::string name)

Protected Member Functions
bool	Open () override
	Internal open. Should not be used directly.

Protected Member Functions inherited from shaka::File
	File (const std::string &file_name)

virtual	~File ()

Detailed Description

Implements a File that is stored in memory. This should be only used for testing, since this does not support larger files.

Definition at line 21 of file memory_file.h.

Member Function Documentation

bool shaka::MemoryFile::Close ( )

overridevirtual

Flush() and de-allocate resources associated with this file, and delete this File object. THIS IS THE ONE TRUE WAY TO DEALLOCATE THIS OBJECT.

Returns: true on success. For writable files, returning false MAY INDICATE DATA LOSS.

Implements shaka::File.

Definition at line 62 of file memory_file.cc.

void shaka::MemoryFile::Delete ( const std::string & file_name )

static

Deletes the memory file data with the given file_name. Any objects open with that file name will be in an undefined state.

Definition at line 134 of file memory_file.cc.

void shaka::MemoryFile::DeleteAll ( )

static

Deletes all memory file data created. This assumes that there are no MemoryFile objects alive. Any alive objects will be in an undefined state.

Definition at line 130 of file memory_file.cc.

bool shaka::MemoryFile::Flush ( )

overridevirtual

Flush the file so that recently written data will survive an application crash (but not necessarily an OS crash). For instance, in LocalFile the data is flushed into the OS but not necessarily to disk.

Returns: true on success, false otherwise.

Implements shaka::File.

Definition at line 95 of file memory_file.cc.

int64_t shaka::MemoryFile::Read	(	void *	buffer,
		uint64_t	length
	)

overridevirtual

Read data and return it in buffer.

Parameters

[out]	buffer	points to a block of memory with a size of at least length bytes.
	length	indicates number of bytes to be read.

Returns: Number of bytes read, or a value < 0 on error. Zero on end-of-file, or if 'length' is zero.

Implements shaka::File.

Definition at line 67 of file memory_file.cc.

bool shaka::MemoryFile::Seek ( uint64_t position )

overridevirtual

Seek to the specifield position in the file.

Parameters

position is the position to seek to.

Returns: true on success, false otherwise.

Implements shaka::File.

Definition at line 99 of file memory_file.cc.

int64_t shaka::MemoryFile::Size ( )

overridevirtual

Returns: Size of the file in bytes. A return value less than zero indicates a problem getting the size.

Implements shaka::File.

Definition at line 90 of file memory_file.cc.

bool shaka::MemoryFile::Tell ( uint64_t * position )

overridevirtual

Get the current file position.

Parameters

position is a pointer to contain the current file position upon successful return.

Returns: true on succcess, false otherwise.

Implements shaka::File.

Definition at line 107 of file memory_file.cc.

int64_t shaka::MemoryFile::Write	(	const void *	buffer,
		uint64_t	length
	)

overridevirtual

Write block of data.

Parameters

buffer	points to a block of memory with at least length bytes.
length	indicates number of bytes to write.

Returns: Number of bytes written, or a value < 0 on error.

Implements shaka::File.

Definition at line 79 of file memory_file.cc.

The documentation for this class was generated from the following files:

packager/file/memory_file.h
packager/file/memory_file.cc

Public Member Functions

Static Public Member Functions

Protected Member Functions

Detailed Description

Member Function Documentation