src/cmap_open.c File Reference

Opening CCP4-format map files. More...

#include <string.h>
#include <math.h>
#include <stdarg.h>
#include <fcntl.h>
#include "cmaplib.h"
#include "cmap_header.h"
#include "cmap_labels.h"
#include "cmap_errno.h"

Functions
CMMFile *	init_cmap_read (void)
CMMFile *	init_cmap_write (void)
int	is_cmap (CCP4File *file)
void *	ccp4_cmap_open (const char *filename, int mode)

---

Detailed Description

Opening CCP4-format map files.

Author:

Charles Ballard

---

Function Documentation

void* ccp4_cmap_open	(	const char *	filename,
		int	mode
	)

The file is opened for reading/writing.

Parameters:

filename	(char *) the filename
mode	(int) the i/o mode , possible values are O_RDONLY, O_WRONLY, O_RDWR, O_APPEND, O_TMP, O_CREAT, O_TRUNC - see ccp4_sysdep.h

Returns:

(void *) CMMFile structure

References ccp4_file_close(), ccp4_file_open(), ccp4_file_rarch(), ccp4_file_raw_setstamp(), ccp4_signal(), _CMMFile::file_name, init_cmap_read(), init_cmap_write(), is_cmap(), and _CMMFile::stream.

Referenced by FORTRAN_SUBR().

CMMFile* init_cmap_read

(

void

)

Internal: malloc CMMFile struct for reading into

Returns:

CMMFile

Referenced by ccp4_cmap_open().

CMMFile* init_cmap_write

(

void

)

Internal: malloc CMMFile struct for writing

Returns:

CMMFile

References _CMMFile::data, _CMMFile::data_mode, _CMMFile_Symop::offset, and _CMMFile::symop.

Referenced by ccp4_cmap_open().

int is_cmap

(

CCP4File *

file

)

Internal: Identify file as a ccp4 format map

Parameters:

file	The (CCP4File *) struct representing the file.

Returns:

non-zero on true, 0 on false

References ccp4_file_raw_seek(), ccp4_file_readchar(), and ccp4_file_rewind().

Referenced by ccp4_cmap_open().