filereader_memory.cc File Reference

#include <algorithm>
#include <cstring>
#include "BLI_fileops.hh"
#include "BLI_filereader.h"
#include "BLI_mmap.h"
#include "MEM_guardedalloc.h"

Go to the source code of this file.

Classes
struct	MemoryReader

Functions
static int64_t	memory_read_raw (FileReader *reader, void *buffer, size_t size)
static off64_t	memory_seek (FileReader *reader, off64_t offset, int whence)
static void	memory_close_raw (FileReader *reader)
FileReader *	BLI_filereader_new_memory (const void *data, size_t len)
static int64_t	memory_read_mmap (FileReader *reader, void *buffer, size_t size)
static void	memory_close_mmap (FileReader *reader)
FileReader *	BLI_filereader_new_mmap (int filedes)

Function Documentation

BLI_filereader_new_memory()

FileReader * BLI_filereader_new_memory	(	const void *	data,
		size_t	len )

Create FileReader from a region of memory.

Definition at line 71 of file filereader_memory.cc.

References FileReader::close, data, MemoryReader::data, len, MemoryReader::length, MEM_callocN(), memory_close_raw(), memory_read_raw(), memory_seek(), FileReader::read, MemoryReader::reader, and FileReader::seek.

Referenced by blo_filedata_from_memory().

BLI_filereader_new_mmap()

FileReader * BLI_filereader_new_mmap

(

int

filedes

)

Create FileReader from raw file descriptor using memory-mapped IO.

Definition at line 114 of file filereader_memory.cc.

References BLI_mmap_get_length(), BLI_mmap_open(), FileReader::close, MemoryReader::length, MEM_callocN(), memory_close_mmap(), memory_read_mmap(), memory_seek(), MemoryReader::mmap, FileReader::read, MemoryReader::reader, and FileReader::seek.

Referenced by blo_filedata_from_file_descriptor().

memory_close_mmap()

void memory_close_mmap ( FileReader * reader )

static

Definition at line 107 of file filereader_memory.cc.

References BLI_mmap_free(), MEM_freeN(), and MemoryReader::mmap.

Referenced by BLI_filereader_new_mmap().

memory_close_raw()

void memory_close_raw ( FileReader * reader )

static

Definition at line 66 of file filereader_memory.cc.

References MEM_freeN().

Referenced by BLI_filereader_new_memory().

memory_read_mmap()

int64_t memory_read_mmap ( FileReader * reader, void * buffer, size_t size )

static

Definition at line 91 of file filereader_memory.cc.

References BLI_mmap_read(), MemoryReader::length, MemoryReader::mmap, FileReader::offset, MemoryReader::reader, and size().

Referenced by BLI_filereader_new_mmap().

memory_read_raw()

int64_t memory_read_raw ( FileReader * reader, void * buffer, size_t size )

static

Definition at line 27 of file filereader_memory.cc.

References MemoryReader::data, MemoryReader::length, FileReader::offset, MemoryReader::reader, and size().

Referenced by BLI_filereader_new_memory().

memory_seek()

off64_t memory_seek ( FileReader * reader, off64_t offset, int whence )

static

Definition at line 40 of file filereader_memory.cc.

References MemoryReader::length, FileReader::offset, and MemoryReader::reader.

Referenced by BLI_filereader_new_memory(), and BLI_filereader_new_mmap().