file.c File Reference

#include "config.h"
#include "navit_lfs.h"
#include <dirent.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <stdlib.h>
#include <wordexp.h>
#include <glib.h>
#include <zlib.h>
#include "debug.h"
#include "cache.h"
#include "file.h"
#include "atom.h"
#include "item.h"
#include "util.h"
#include "types.h"
#include "zipfile.h"

Data Structures
struct	file_cache_id
struct	file_wordexp

Macros
#define	S_ISDIR(m)   (((m) & S_IFMT) == S_IFDIR)
#define	S_ISREG(m)   (((m) & S_IFMT) == S_IFREG)

Functions
static unsigned char *	file_http_header_end (unsigned char *str, int len)
int	file_request (struct file *f, struct attr **options)
char *	file_http_header (struct file *f, char *header)
struct file *	file_create (char *name, struct attr **options)
int	file_is_dir (const char *name)
	Check if a given path corresponds to a directory. More...
int	file_is_reg (const char *name)
	Check if a given path corresponds to a regular file. More...
long long	file_size (struct file *file)
int	file_mkdir (char *name, int pflag)
int	file_mmap (struct file *file)
unsigned char *	file_data_read (struct file *file, long long offset, int size)
static void	file_process_headers (struct file *file, unsigned char *headers)
static void	file_shift_buffer (struct file *file, int amount)
unsigned char *	file_data_read_special (struct file *file, int size, int *size_ret)
unsigned char *	file_data_read_all (struct file *file)
void	file_data_flush (struct file *file, long long offset, int size)
int	file_data_write (struct file *file, long long offset, int size, const void *data)
int	file_get_contents (char *name, unsigned char **buffer, int *size)
static int	uncompress_int (Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen)
unsigned char *	file_data_read_compressed (struct file *file, long long offset, int size, int size_uncomp)
void	file_data_free (struct file *file, unsigned char *data)
void	file_data_remove (struct file *file, unsigned char *data)
int	file_exists (char const *name)
void	file_remap_readonly (struct file *f)
void	file_unmap (struct file *f)
void *	file_opendir (char *dir)
char *	file_readdir (void *hnd)
void	file_closedir (void *hnd)
struct file *	file_create_caseinsensitive (char *name, struct attr **options)
void	file_fsync (struct file *f)
void	file_destroy (struct file *f)
struct file_wordexp *	file_wordexp_new (const char *pattern)
int	file_wordexp_get_count (struct file_wordexp *wexp)
char **	file_wordexp_get_array (struct file_wordexp *wexp)
void	file_wordexp_destroy (struct file_wordexp *wexp)
int	file_version (struct file *file, int mode)
void *	file_get_os_handle (struct file *file)
int	file_set_cache_size (int cache_size)
void	file_init (void)

Variables
static struct cache *	file_cache
struct file_cache_id	ATTRIBUTE_PACKED

Macro Definition Documentation

S_ISDIR

#define S_ISDIR

(

m

)

(((m) & S_IFMT) == S_IFDIR)

S_ISREG

#define S_ISREG

(

m

)

(((m) & S_IFMT) == S_IFREG)

Function Documentation

file_closedir()

void file_closedir

(

void *

hnd

)

Referenced by file_create_caseinsensitive(), and speechd_new().

file_create()

struct file* file_create	(	char *	name,
		struct attr **	options
	)

References atom(), attr_search(), file::cache, dbg, dbg_assert, file::fd, file, LONGLONG_FMT, lvl_debug, file::name, name, file::name_id, attr::num, O_BINARY, O_LARGEFILE, file::size, and attr::u.

Referenced by ch_setup(), download(), file_create_caseinsensitive(), file_get_contents(), map_binfile_http_request(), map_binfile_open(), map_binfile_zip_setup(), map_rect_new_shapefile(), and vehicle_file_destroy().

file_create_caseinsensitive()

struct file* file_create_caseinsensitive	(	char *	name,
		struct attr **	options
	)

References file_closedir(), file_create(), file_opendir(), file_readdir(), filename, name, and p.

Referenced by map_new_mg(), tree_search_hv(), and tree_search_init().

file_data_flush()

void file_data_flush	(	struct file *	file,
		long long	offset,
		int	size
	)

References file::cache, cache_flush(), dbg, file_cache, LONGLONG_FMT, lvl_debug, file::name_id, offset, and size.

Referenced by download_finish(), and file_data_write().

file_data_free()

void file_data_free	(	struct file *	file,
		unsigned char *	data
	)

References file::begin, file::cache, cache_entry_destroy(), data, and file_cache.

Referenced by binfile_extract(), binfile_read_cd(), binfile_read_eoc(), binfile_read_eoc64(), binfile_read_lfh(), binfile_search_cd(), download_cd(), file_data_read(), map_binfile_close(), map_binfile_open(), map_binfile_zip_setup(), map_download_selection(), map_rect_destroy_binfile(), map_rect_new_shapefile(), pop_tile(), push_zipfile_tile_do(), and zipfile_to_tile().

file_data_read()

unsigned char* file_data_read	(	struct file *	file,
		long long	offset,
		int	size
	)

References file::begin, file::cache, cache_insert_new(), cache_lookup(), file::fd, file_cache, file_data_free(), file::name_id, offset, size, and file::special.

Referenced by binfile_read_cd(), binfile_read_content(), binfile_read_eoc(), binfile_read_eoc64(), binfile_read_lfh(), binfile_search_cd(), ch_setup(), download_cd(), download_finish(), download_start(), file_data_read_all(), map_binfile_open(), map_rect_new_binfile(), push_zipfile_tile(), and zipfile_to_tile().

file_data_read_all()

unsigned char* file_data_read_all

(

struct file *

file

)

References file_data_read(), and file::size.

Referenced by file_get_contents(), and map_rect_new_shapefile().

file_data_read_compressed()

unsigned char* file_data_read_compressed	(	struct file *	file,
		long long	offset,
		int	size,
		int	size_uncomp
	)

References file::cache, cache_insert_new(), cache_lookup(), dbg, file::fd, file_cache, lvl_error, file::name_id, offset, size, and uncompress_int().

Referenced by binfile_read_content().

file_data_read_special()

unsigned char* file_data_read_special	(	struct file *	file,
		int	size,
		int *	size_ret
	)

References file::buffer, file::buffer_len, buffer_size, dbg, file::fd, file_http_header(), file_http_header_end(), file_process_headers(), file_shift_buffer(), lvl_debug, file::requests, size, and file::special.

Referenced by download_directory_do(), download_download(), map_binfile_download_range(), and map_binfile_download_size().

file_data_remove()

void file_data_remove	(	struct file *	file,
		unsigned char *	data
	)

References file::begin, file::cache, cache_flush_data(), data, and file_cache.

Referenced by download_finish(), and download_start().

file_data_write()

int file_data_write	(	struct file *	file,
		long long	offset,
		int	size,
		const void *	data
	)

References data, file::fd, file_data_flush(), offset, file::size, and size.

Referenced by download_directory_do(), download_download(), download_finish(), download_initial_finish(), and vehicle_file_destroy().

file_destroy()

void file_destroy

(

struct file *

f

)

References file::f, and file_unmap().

Referenced by file_get_contents(), map_binfile_close(), map_binfile_handle_redirect(), map_binfile_http_close(), map_binfile_open(), map_destroy_mg(), map_rect_new_shapefile(), tree_search_free(), tree_search_hv(), and vehicle_file_destroy().

file_exists()

int file_exists

(

char const *

name

)

References name.

Referenced by espeak_new(), expand_filenames(), main_init(), main_real(), navit_get_user_data_directory(), plugin_new(), vehicle_file_new_file(), and xinclude().

file_fsync()

void file_fsync

(

struct file *

f

)

References file::f.

Referenced by vehicle_file_destroy().

file_get_contents()

int file_get_contents	(	char *	name,
		unsigned char **	buffer,
		int *	size
	)

References file::cache, file, file_create(), file_data_read_all(), file_destroy(), file_size(), name, and size.

Referenced by gui_internal_setup(), item_bin_sort_file(), and vehicle_file_io().

file_get_os_handle()

void* file_get_os_handle

(

struct file *

file

)

References file::fd.

file_http_header()

char* file_http_header	(	struct file *	f,
		char *	header
	)

References file::headers.

Referenced by file_data_read_special(), and map_binfile_handle_redirect().

file_http_header_end()

static unsigned char* file_http_header_end ( unsigned char *  str, int  len  )

static

References attr::str.

Referenced by file_data_read_special().

file_init()

void file_init

(

void

)

References cache_new(), dbg, file_cache, and lvl_error.

Referenced by add_plugin(), and main_real().

file_is_dir()

int file_is_dir

(

const char *

name

)

Check if a given path corresponds to a directory.

Parameters

name	The path to the filesystem element

Returns

!=0 (true) if name is a directory

References name, and S_ISDIR.

Referenced by file_mkdir(), and xinclude().

file_is_reg()

int file_is_reg

(

const char *

name

)

Check if a given path corresponds to a regular file.

Parameters

name	The path to the filesystem element

Returns

!=0 (true) if name is a regular file

References name, and S_ISREG.

Referenced by vehicle_file_open().

file_mkdir()

int file_mkdir	(	char *	name,
		int	pflag
	)

References dbg, file_is_dir(), lvl_debug, name, and next.

Referenced by binfile_extract(), log_open(), and navit_get_user_data_directory().

file_mmap()

int file_mmap

(

struct file *

file

)

References file::begin, dbg_assert, file::end, file::fd, file::mmap_end, file::name, and file::size.

Referenced by ch_setup(), map_binfile_open(), map_binfile_zip_setup(), map_new_mg(), tree_search_hv(), and tree_search_init().

file_opendir()

void* file_opendir

(

char *

dir

)

Referenced by file_create_caseinsensitive(), and speechd_new().

file_process_headers()

static void file_process_headers ( struct file *  file, unsigned char *  headers  )

static

References dbg, file::headers, lvl_debug, file::size, and strtolower().

Referenced by file_data_read_special().

file_readdir()

char* file_readdir

(

void *

hnd

)

Referenced by file_create_caseinsensitive(), and speechd_new().

file_remap_readonly()

void file_remap_readonly

(

struct file *

f

)

References file::begin, file::fd, and file::size.

file_request()

int file_request	(	struct file *	f,
		struct attr **	options
	)

Referenced by map_binfile_http_request().

file_set_cache_size()

int file_set_cache_size

(

int

cache_size

)

References cache_resize(), and file_cache.

Referenced by config_set_attr_int().

file_shift_buffer()

static void file_shift_buffer ( struct file *  file, int  amount  )

static

References file::buffer, and file::buffer_len.

Referenced by file_data_read_special().

file_size()

long long file_size

(

struct file *

file

)

References file::size.

Referenced by ch_setup(), download_start(), file_get_contents(), map_binfile_download_size(), and map_rect_new_shapefile().

file_unmap()

void file_unmap

(

struct file *

f

)

References file::begin, and file::size.

Referenced by file_destroy().

file_version()

int file_version	(	struct file *	file,
		int	mode
	)

References file::begin, file::ctime, dbg, file::end, file::fd, lvl_debug, file::mmap_end, file::mtime, file::name, file::size, size, st, and file::version.

Referenced by binfile_check_version(), and map_binfile_open().

file_wordexp_destroy()

void file_wordexp_destroy

(

struct file_wordexp *

wexp

)

References file_wordexp::err, file_wordexp::pattern, and file_wordexp::we.

Referenced by graphics_icon_path(), graphics_image_new_scaled_rotated(), graphics_texture_path(), log_new(), map_new_binfile(), map_new_csv(), map_new_mg(), map_new_shapefile(), map_new_textfile(), osd_gps_status_new(), osd_nav_next_turn_new(), osd_nav_toggle_announcer_new(), osd_navigation_status_new(), osd_volume_new(), plugin_new(), and xinclude().

file_wordexp_get_array()

char** file_wordexp_get_array

(

struct file_wordexp *

wexp

)

References file_wordexp::err, file_wordexp::pattern, and file_wordexp::we.

Referenced by graphics_icon_path(), graphics_image_new_scaled_rotated(), graphics_texture_path(), log_new(), map_new_binfile(), map_new_csv(), map_new_mg(), map_new_shapefile(), map_new_textfile(), osd_gps_status_new(), osd_nav_next_turn_new(), osd_nav_toggle_announcer_new(), osd_navigation_status_new(), osd_volume_new(), plugin_new(), and xinclude().

file_wordexp_get_count()

int file_wordexp_get_count

(

struct file_wordexp *

wexp

)

References file_wordexp::err, and file_wordexp::we.

Referenced by graphics_icon_path(), graphics_image_new_scaled_rotated(), graphics_texture_path(), log_new(), plugin_new(), and xinclude().

file_wordexp_new()

struct file_wordexp* file_wordexp_new

(

const char *

pattern

)

References dbg, file_wordexp::err, lvl_debug, file_wordexp::pattern, and file_wordexp::we.

Referenced by graphics_icon_path(), graphics_image_new_scaled_rotated(), graphics_texture_path(), log_new(), map_new_binfile(), map_new_csv(), map_new_mg(), map_new_shapefile(), map_new_textfile(), osd_gps_status_new(), osd_nav_next_turn_new(), osd_nav_toggle_announcer_new(), osd_navigation_status_new(), osd_volume_new(), plugin_new(), and xinclude().

uncompress_int()

static int uncompress_int ( Bytef *  dest, uLongf *  destLen, const Bytef *  source, uLong  sourceLen  )

static

References startup::dest, and err().

Referenced by file_data_read_compressed().

Variable Documentation

ATTRIBUTE_PACKED

struct file_cache_id ATTRIBUTE_PACKED

file_cache

struct cache* file_cache

static

Navit, a modular navigation system. Copyright (C) 2005-2011 Navit Team

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

Referenced by file_data_flush(), file_data_free(), file_data_read(), file_data_read_compressed(), file_data_remove(), file_init(), and file_set_cache_size().