file_stream.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <ctype.h>
#include <errno.h>
#include <streams/file_stream.h>
#include <vfs/vfs_implementation.h>

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Classes
struct	RFILE

Macros
#define	VFS_FRONTEND

Functions
void	filestream_vfs_init (const struct retro_vfs_interface_info *vfs_info)
bool	filestream_exists (const char *path)
int64_t	filestream_get_size (RFILE *stream)
int64_t	filestream_truncate (RFILE *stream, int64_t length)
RFILE *	filestream_open (const char *path, unsigned mode, unsigned hints)
char *	filestream_gets (RFILE *stream, char *s, size_t len)
int	filestream_getc (RFILE *stream)
int	filestream_scanf (RFILE *stream, const char *format,...)
int64_t	filestream_seek (RFILE *stream, int64_t offset, int seek_position)
int	filestream_eof (RFILE *stream)
int64_t	filestream_tell (RFILE *stream)
void	filestream_rewind (RFILE *stream)
int64_t	filestream_read (RFILE *stream, void *s, int64_t len)
int	filestream_flush (RFILE *stream)
int	filestream_delete (const char *path)
int	filestream_rename (const char *old_path, const char *new_path)
const char *	filestream_get_path (RFILE *stream)
int64_t	filestream_write (RFILE *stream, const void *s, int64_t len)
int	filestream_putc (RFILE *stream, int c)
int	filestream_vprintf (RFILE *stream, const char *format, va_list args)
int	filestream_printf (RFILE *stream, const char *format,...)
int	filestream_error (RFILE *stream)
int	filestream_close (RFILE *stream)
int64_t	filestream_read_file (const char *path, void **buf, int64_t *len)
bool	filestream_write_file (const char *path, const void *data, int64_t size)
char *	filestream_getline (RFILE *stream)

Variables
static const int64_t	vfs_error_return_value = -1
static retro_vfs_get_path_t	filestream_get_path_cb = NULL
static retro_vfs_open_t	filestream_open_cb = NULL
static retro_vfs_close_t	filestream_close_cb = NULL
static retro_vfs_size_t	filestream_size_cb = NULL
static retro_vfs_truncate_t	filestream_truncate_cb = NULL
static retro_vfs_tell_t	filestream_tell_cb = NULL
static retro_vfs_seek_t	filestream_seek_cb = NULL
static retro_vfs_read_t	filestream_read_cb = NULL
static retro_vfs_write_t	filestream_write_cb = NULL
static retro_vfs_flush_t	filestream_flush_cb = NULL
static retro_vfs_remove_t	filestream_remove_cb = NULL
static retro_vfs_rename_t	filestream_rename_cb = NULL

Macro Definition Documentation

VFS_FRONTEND

#define VFS_FRONTEND

Function Documentation

filestream_close()

int filestream_close

(

RFILE *

stream

)

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filestream_delete()

int filestream_delete

(

const char *

path

)

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filestream_eof()

int filestream_eof

(

RFILE *

stream

)

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filestream_error()

int filestream_error

(

RFILE *

stream

)

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filestream_exists()

bool filestream_exists

(

const char *

path

)

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filestream_flush()

int filestream_flush

(

RFILE *

stream

)

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filestream_get_path()

const char* filestream_get_path

(

RFILE *

stream

)

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filestream_get_size()

int64_t filestream_get_size

(

RFILE *

stream

)

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filestream_getc()

int filestream_getc

(

RFILE *

stream

)

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filestream_getline()

char* filestream_getline

(

RFILE *

stream

)

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filestream_gets()

char* filestream_gets	(	RFILE *	stream,
		char *	s,
		size_t	len
	)

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filestream_open()

RFILE* filestream_open	(	const char *	path,
		unsigned	mode,
		unsigned	hints
	)

filestream_open: : path to file : file mode to use when opening (read/write) :

Opens a file for reading or writing, depending on the requested mode. Returns a pointer to an RFILE if opened successfully, otherwise NULL.

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filestream_printf()

int filestream_printf	(	RFILE *	stream,
		const char *	format,
			...
	)

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filestream_putc()

int filestream_putc	(	RFILE *	stream,
		int	c
	)

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filestream_read()

int64_t filestream_read	(	RFILE *	stream,
		void *	s,
		int64_t	len
	)

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filestream_read_file()

int64_t filestream_read_file	(	const char *	path,
		void **	buf,
		int64_t *	len
	)

filestream_read_file: : path to file. : buffer to allocate and read the contents of the file into. Needs to be freed manually.

Read the contents of a file into .

Returns: number of items read, -1 on error.

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filestream_rename()

int filestream_rename	(	const char *	old_path,
		const char *	new_path
	)

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filestream_rewind()

void filestream_rewind

(

RFILE *

stream

)

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filestream_scanf()

int filestream_scanf	(	RFILE *	stream,
		const char *	format,
			...
	)

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filestream_seek()

int64_t filestream_seek	(	RFILE *	stream,
		int64_t	offset,
		int	seek_position
	)

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filestream_tell()

int64_t filestream_tell

(

RFILE *

stream

)

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filestream_truncate()

int64_t filestream_truncate	(	RFILE *	stream,
		int64_t	length
	)

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filestream_vfs_init()

void filestream_vfs_init

(

const struct retro_vfs_interface_info *

vfs_info

)

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filestream_vprintf()

int filestream_vprintf	(	RFILE *	stream,
		const char *	format,
		va_list	args
	)

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filestream_write()

int64_t filestream_write	(	RFILE *	stream,
		const void *	s,
		int64_t	len
	)

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filestream_write_file()

bool filestream_write_file	(	const char *	path,
		const void *	data,
		int64_t	size
	)

filestream_write_file: : path to file. : contents to write to the file. : size of the contents.

Writes data to a file.

Returns: true (1) on success, false (0) otherwise.

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Variable Documentation

filestream_close_cb

retro_vfs_close_t filestream_close_cb = NULL

static

filestream_flush_cb

retro_vfs_flush_t filestream_flush_cb = NULL

static

filestream_get_path_cb

retro_vfs_get_path_t filestream_get_path_cb = NULL

static

filestream_open_cb

retro_vfs_open_t filestream_open_cb = NULL

static

filestream_read_cb

retro_vfs_read_t filestream_read_cb = NULL

static

filestream_remove_cb

retro_vfs_remove_t filestream_remove_cb = NULL

static

filestream_rename_cb

retro_vfs_rename_t filestream_rename_cb = NULL

static

filestream_seek_cb

retro_vfs_seek_t filestream_seek_cb = NULL

static

filestream_size_cb

retro_vfs_size_t filestream_size_cb = NULL

static

filestream_tell_cb

retro_vfs_tell_t filestream_tell_cb = NULL

static

filestream_truncate_cb

retro_vfs_truncate_t filestream_truncate_cb = NULL

static

filestream_write_cb

retro_vfs_write_t filestream_write_cb = NULL

static

vfs_error_return_value

const int64_t vfs_error_return_value = -1

static