bmzip.c File Reference

#include "Common/compat-c.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>
#include <stdint.h>
#include <stdarg.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include "bmz-internal.h"

Include dependency graph for bmzip.c:

Go to the source code of this file.

Defines

#define BMZ_MAGIC   "BMZ"

#define BMZIP_VER   0x0110

#define BMZ_HEADER_SZ   (strlen(BMZ_MAGIC) + 2 + 1 + 6 + 4)

#define BMZ_A_PACK   0

#define BMZ_A_UNPACK   1

#define BMZ_A_LIST   2

#define BMZ_O_BM_ONLY   1

#define BMZ_O_STREAM   2

#define LOG(_lvl_, _fmt_,...)

#define WARN(_fmt_,...)

#define DIE(_fmt_,...)

#define BMZ_ALIGN(_mem_, _n_)   (Byte *)(_mem_) + _n_ - (((size_t)(_mem_))%(_n_))

#define BMZ_READ_INT16(_p_, _n_)

#define BMZ_READ_INT32(_p_, _n_)

#define BMZ_READ_INT48(_p_, _n_)

#define BMZ_WRITE_INT16(_p_, _n_)

#define BMZ_WRITE_INT32(_p_, _n_)

#define BMZ_WRITE_INT48(_p_, _n_)

Typedefs

typedef unsigned char Byte

typedef long long unsigned Llu

typedef long unsigned Lu

Functions

static void read_bmz_header (int fd, Byte *buf)

static void parse_bmz_header (const Byte *buf, uint16_t *version_p, uint64_t *orig_size_p, uint32_t *checksum_p, uint32_t *options)

static void write_bmz_header (int fd, size_t in_len, uint32_t checksum, Byte options)

static void do_list (int fd)

static void do_pack (const void *in, size_t in_len, size_t buf_len, size_t offset, size_t fp_len, Byte options)

static void do_unpack (const void *in, size_t in_len, size_t buf_len)

static void do_block (const void *in, size_t len, size_t buf_len, size_t offset, size_t fp_len, int action, int options)

static char * read_from_fp (FILE *fp, size_t *len_p, size_t *size_p)

static char * read_from_fd (int fd, size_t *len_p, size_t *size_p)

static void input_from_stdin (size_t offset, size_t fp_len, int action, int options)

static void input_from_file (const char *fname, size_t offset, size_t fp_len, int action, int options)

static int bm_hash (const char *name)

static void HT_NORETURN show_usage ()

int main (int ac, char *av[])

Variables

static int s_no_mmap = 0

Copyright (C) 2007 Luke Lu (Zvents, Inc.

static int s_verbosity = 0

static int s_bm_dump = 0

static int s_bm_hash = 0

Define Documentation

#define BMZ_A_LIST 2

Definition at line 48 of file bmzip.c.

#define BMZ_A_PACK 0

Definition at line 46 of file bmzip.c.

#define BMZ_A_UNPACK 1

Definition at line 47 of file bmzip.c.

#define BMZ_ALIGN	(	_mem_,
		_n_		)	(Byte *)(_mem_) + _n_ - (((size_t)(_mem_))%(_n_))

Definition at line 78 of file bmzip.c.

#define BMZ_HEADER_SZ (strlen(BMZ_MAGIC) + 2 + 1 + 6 + 4)

Definition at line 44 of file bmzip.c.

#define BMZ_MAGIC "BMZ"

Definition at line 42 of file bmzip.c.

#define BMZ_O_BM_ONLY 1

Definition at line 50 of file bmzip.c.

#define BMZ_O_STREAM 2

Definition at line 51 of file bmzip.c.

#define BMZ_READ_INT16	(	_p_,
		_n_		)

Value:

_n_ = (*_p_++ << 8); \
  _n_ |= (*_p_++)

Definition at line 80 of file bmzip.c.

#define BMZ_READ_INT32	(	_p_,
		_n_		)

Value:

_n_ = (*_p_++ << 24); \
  _n_ |= (*_p_++ << 16); \
  _n_ |= (*_p_++ << 8); \
  _n_ |= (*_p_++)

Definition at line 84 of file bmzip.c.

#define BMZ_READ_INT48	(	_p_,
		_n_		)

Value:

_n_ = ((uint64_t)*_p_++ << 40); \
  _n_ |= ((uint64_t)*_p_++ << 32); \
  _n_ |= (*_p_++ << 24); \
  _n_ |= (*_p_++ << 16); \
  _n_ |= (*_p_++ << 8); \
  _n_ |= (*_p_++)

Definition at line 90 of file bmzip.c.

#define BMZ_WRITE_INT16	(	_p_,
		_n_		)

Value:

*_p_++ = (Byte)(_n_ >> 8); \
  *_p_++ = (Byte)(_n_)

Definition at line 98 of file bmzip.c.

#define BMZ_WRITE_INT32	(	_p_,
		_n_		)

Value:

*_p_++ = (Byte)(_n_ >> 24); \
  *_p_++ = (Byte)(_n_ >> 16); \
  *_p_++ = (Byte)(_n_ >> 8); \
  *_p_++ = (Byte)(_n_)

Definition at line 102 of file bmzip.c.

#define BMZ_WRITE_INT48	(	_p_,
		_n_		)

Value:

*_p_++ = (Byte)(_n_ >> 40); \
  *_p_++ = (Byte)(_n_ >> 32); \
  *_p_++ = (Byte)(_n_ >> 24); \
  *_p_++ = (Byte)(_n_ >> 16); \
  *_p_++ = (Byte)(_n_ >> 8); \
  *_p_++ = (Byte)(_n_)

Definition at line 108 of file bmzip.c.

#define BMZIP_VER 0x0110

Definition at line 43 of file bmzip.c.

#define DIE	(	_fmt_,
		...		)

Value:

do { \
  LOG(0, "fatal: " _fmt_, ##__VA_ARGS__); \
  exit(1); \
} while (0)

Definition at line 73 of file bmzip.c.

#define LOG	(	_lvl_,
		_fmt_,
		...	)

Value:

if (s_verbosity >= _lvl_) do { \
  fprintf(stderr, "bmzip: %s: " _fmt_, __FUNCTION__, ##__VA_ARGS__); \
  if (errno) fprintf(stderr, ": %s", strerror(errno)); \
  putc('\n', stderr); \
} while (0)

Definition at line 63 of file bmzip.c.

#define WARN	(	_fmt_,
		...		)

Value:

do { \
  LOG(0, "warning: " _fmt_, ##__VA_ARGS__); \
} while (0)

Definition at line 69 of file bmzip.c.

Typedef Documentation

typedef unsigned char Byte

Definition at line 53 of file bmzip.c.

typedef long long unsigned Llu

Definition at line 56 of file bmzip.c.

typedef long unsigned Lu

Definition at line 57 of file bmzip.c.

Function Documentation

static int bm_hash ( const char * name ) [static]

Definition at line 395 of file bmzip.c.

static void do_block	(	const void *	in,
		size_t	len,
		size_t	buf_len,
		size_t	offset,
		size_t	fp_len,
		int	action,
		int	options
	)			`[static]`

Definition at line 285 of file bmzip.c.

static void do_list ( int fd ) [static]

Definition at line 159 of file bmzip.c.

static void do_pack	(	const void *	in,
		size_t	in_len,
		size_t	buf_len,
		size_t	offset,
		size_t	fp_len,
		Byte	options
	)			`[static]`

Definition at line 177 of file bmzip.c.

static void do_unpack	(	const void *	in,
		size_t	in_len,
		size_t	buf_len
	)			`[static]`

Definition at line 238 of file bmzip.c.

static void input_from_file	(	const char *	fname,
		size_t	offset,
		size_t	fp_len,
		int	action,
		int	options
	)			`[static]`

Definition at line 377 of file bmzip.c.

static void input_from_stdin	(	size_t	offset,
		size_t	fp_len,
		int	action,
		int	options
	)			`[static]`

Definition at line 364 of file bmzip.c.

int main	(	int	ac,
		char *	av[]
	)

Definition at line 426 of file bmzip.c.

static void parse_bmz_header	(	const Byte *	buf,
		uint16_t *	version_p,
		uint64_t *	orig_size_p,
		uint32_t *	checksum_p,
		uint32_t *	options
	)			`[static]`

Definition at line 123 of file bmzip.c.

static void read_bmz_header	(	int	fd,
		Byte *	buf
	)			`[static]`

Definition at line 117 of file bmzip.c.

static char* read_from_fd	(	int	fd,
		size_t *	len_p,
		size_t *	size_p
	)			`[static]`

Definition at line 323 of file bmzip.c.

static char* read_from_fp	(	FILE *	fp,
		size_t *	len_p,
		size_t *	size_p
	)			`[static]`

Definition at line 300 of file bmzip.c.

static void HT_NORETURN show_usage ( ) [static]

Definition at line 408 of file bmzip.c.

static void write_bmz_header	(	int	fd,
		size_t	in_len,
		uint32_t	checksum,
		Byte	options
	)			`[static]`

Definition at line 143 of file bmzip.c.

Variable Documentation

int s_bm_dump = 0 [static]

Definition at line 60 of file bmzip.c.

int s_bm_hash = 0 [static]

Definition at line 61 of file bmzip.c.

int s_no_mmap = 0 [static]

)

This file is part of Hypertable.

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

Hypertable 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 Hypertable. If not, see <http://www.gnu.org/licenses/> A demo app for bmz compression

Definition at line 35 of file bmzip.c.

int s_verbosity = 0 [static]

Definition at line 59 of file bmzip.c.


Defines
#define	BMZ_MAGIC "BMZ"
#define	BMZIP_VER 0x0110
#define	BMZ_HEADER_SZ (strlen(BMZ_MAGIC) + 2 + 1 + 6 + 4)
#define	BMZ_A_PACK 0
#define	BMZ_A_UNPACK 1
#define	BMZ_A_LIST 2
#define	BMZ_O_BM_ONLY 1
#define	BMZ_O_STREAM 2
#define	LOG(_lvl_, _fmt_,...)
#define	WARN(_fmt_,...)
#define	DIE(_fmt_,...)
#define	BMZ_ALIGN(_mem_, _n_) (Byte *)(_mem_) + _n_ - (((size_t)(_mem_))%(_n_))
#define	BMZ_READ_INT16(_p_, _n_)
#define	BMZ_READ_INT32(_p_, _n_)
#define	BMZ_READ_INT48(_p_, _n_)
#define	BMZ_WRITE_INT16(_p_, _n_)
#define	BMZ_WRITE_INT32(_p_, _n_)
#define	BMZ_WRITE_INT48(_p_, _n_)
Typedefs
typedef unsigned char	Byte
typedef long long unsigned	Llu
typedef long unsigned	Lu
Functions
static void	read_bmz_header (int fd, Byte *buf)
static void	parse_bmz_header (const Byte buf, uint16_t version_p, uint64_t orig_size_p, uint32_t checksum_p, uint32_t *options)
static void	write_bmz_header (int fd, size_t in_len, uint32_t checksum, Byte options)
static void	do_list (int fd)
static void	do_pack (const void *in, size_t in_len, size_t buf_len, size_t offset, size_t fp_len, Byte options)
static void	do_unpack (const void *in, size_t in_len, size_t buf_len)
static void	do_block (const void *in, size_t len, size_t buf_len, size_t offset, size_t fp_len, int action, int options)
static char *	read_from_fp (FILE fp, size_t len_p, size_t *size_p)
static char *	read_from_fd (int fd, size_t len_p, size_t size_p)
static void	input_from_stdin (size_t offset, size_t fp_len, int action, int options)
static void	input_from_file (const char *fname, size_t offset, size_t fp_len, int action, int options)
static int	bm_hash (const char *name)
static void HT_NORETURN	show_usage ()
int	main (int ac, char *av[])
Variables
static int	s_no_mmap = 0
	Copyright (C) 2007 Luke Lu (Zvents, Inc.
static int	s_verbosity = 0
static int	s_bm_dump = 0
static int	s_bm_hash = 0