GRASS GIS 7 Programmer's Manual  7.7.svn(2018)-r73600
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open_misc.c File Reference
#include <grass/config.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <grass/gis.h>
#include <grass/glocale.h>
#include "gis_local_proto.h"
Include dependency graph for open_misc.c:

Go to the source code of this file.

Functions

int G_open_new_misc (const char *dir, const char *element, const char *name)
 open a new database file More...
 
int G_open_old_misc (const char *dir, const char *element, const char *name, const char *mapset)
 open a database file for reading More...
 
int G_open_update_misc (const char *dir, const char *element, const char *name)
 open a database file for update More...
 
FILE * G_fopen_new_misc (const char *dir, const char *element, const char *name)
 open a new database file More...
 
FILE * G_fopen_old_misc (const char *dir, const char *element, const char *name, const char *mapset)
 open a database file for reading More...
 
FILE * G_fopen_append_misc (const char *dir, const char *element, const char *name)
 
FILE * G_fopen_modify_misc (const char *dir, const char *element, const char *name)
 

Function Documentation

FILE* G_fopen_append_misc ( const char *  dir,
const char *  element,
const char *  name 
)

Definition at line 222 of file open_misc.c.

References fd, and G_mapset().

Referenced by I_fopen_group_file_append(), and I_fopen_subgroup_file_append().

FILE* G_fopen_modify_misc ( const char *  dir,
const char *  element,
const char *  name 
)

Definition at line 235 of file open_misc.c.

References fd, and G_mapset().

FILE* G_fopen_new_misc ( const char *  dir,
const char *  element,
const char *  name 
)

open a new database file

The database file name under the element in the current mapset is created and opened for writing (but not reading). The UNIX fopen( ) routine, with "w" write mode, is used to open the file. If the file does not exist, the NULL pointer is returned. Otherwise the file is positioned at the end of the file and the file descriptor from the fopen( ) is returned.

Parameters
element
name
Returns
FILE *

Definition at line 182 of file open_misc.c.

References fd, and G_mapset().

Referenced by I_fopen_group_file_new(), I_fopen_signature_file_new(), I_fopen_sigset_file_new(), I_fopen_subgroup_file_new(), Rast3d_write_cats(), Rast3d_write_colors(), Rast3d_write_history(), Rast__quant_export(), Rast_create_gdal_link(), and Rast_write_range().

FILE* G_fopen_old_misc ( const char *  dir,
const char *  element,
const char *  name,
const char *  mapset 
)

open a database file for reading

The database file name under the element in the specified mapset is opened for reading (but not for writing). The UNIX fopen( ) routine, with "r" read mode, is used to open the file. If the file does not exist, the NULL pointer is returned. Otherwise the file descriptor from the fopen( ) is returned.

Parameters
element
name
mapset
Returns
FILE *

Definition at line 210 of file open_misc.c.

References fd.

Referenced by I_fopen_group_file_old(), I_fopen_signature_file_old(), I_fopen_sigset_file_old(), I_fopen_subgroup_file_old(), Rast3d_read_history(), Rast__quant_import(), Rast_get_gdal_link(), Rast_get_vrt(), Rast_is_reclassed_to(), Rast_read_histogram(), and Rast_read_range().

int G_open_new_misc ( const char *  dir,
const char *  element,
const char *  name 
)

open a new database file

The database file name under the element in the current mapset is created and opened for writing (but not reading). The UNIX open( ) routine is used to open the file. If the file does not exist, -1 is returned. Otherwise the file is positioned at the end of the file and the file descriptor from the open( ) is returned.

Parameters
element
name
Returns
int

Definition at line 113 of file open_misc.c.

References G_mapset().

Referenced by Rast_write_fp_range(), and Rast_write_rstats().

int G_open_old_misc ( const char *  dir,
const char *  element,
const char *  name,
const char *  mapset 
)

open a database file for reading

The database file name under the element in the specified mapset is opened for reading (but not for writing). The UNIX open( ) routine is used to open the file. If the file does not exist, -1 is returned. Otherwise the file descriptor from the open( ) is returned.

Parameters
element
name
mapset
Returns
int

Definition at line 134 of file open_misc.c.

Referenced by Rast3d_open_cell_old_no_header(), Rast__open_old(), Rast_read_fp_range(), and Rast_read_rstats().

int G_open_update_misc ( const char *  dir,
const char *  element,
const char *  name 
)

open a database file for update

The database file name under the element in the current mapset is opened for reading and writing. The UNIX open( ) routine is used to open the file. If the file does not exist, -1 is returned. Otherwise the file is positioned at the end of the file and the file descriptor from the open( ) is returned.

Parameters
element
name
Returns
int

Definition at line 155 of file open_misc.c.

References fd, and G_mapset().