gphoto2-port-portability.h File Reference

#include <time.h>
#include <strings.h>
#include <sys/types.h>
#include <dirent.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <unistd.h>

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Defines
#define	_XOPEN_SOURCE   500
#define	_POSIX_C_SOURCE   199309
#define	GP_SYSTEM_SLEEP(_ms)
#define	gp_system_dir   DIR *
#define	gp_system_dirent   struct dirent *
#define	gp_system_dir_delim   '/'
Functions
int	gp_system_mkdir (const char *dirname)
	mkdir UNIX functionality
int	gp_system_rmdir (const char *dirname)
	rmdir UNIX functionality
gp_system_dir	gp_system_opendir (const char *dirname)
	opendir UNIX functionality
gp_system_dirent	gp_system_readdir (gp_system_dir d)
	readdir UNIX functionality
const char *	gp_system_filename (gp_system_dirent de)
	retrieve UNIX filename out of a directory entry
int	gp_system_closedir (gp_system_dir dir)
	closedir UNIX functionality
int	gp_system_is_file (const char *filename)
	check if passed filename is a file
int	gp_system_is_dir (const char *dirname)
	check if passed filename is a directory

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Detailed Description

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Define Documentation

#define gp_system_dir   DIR *

A system directory handle

#define gp_system_dir_delim   '/'

The directory delimiter character on this platform.

#define gp_system_dirent   struct dirent *

A system directory entry

#define GP_SYSTEM_SLEEP

(

_ms

)

Value:

do {                                                  \
    const struct timespec req = {                     \
      0,                                              \
      1000*1000*((long)(_ms))                         \
    };                                                \
    nanosleep(&req, NULL);                            \
  } while (0)

Sleep passed amount of milliseconds.

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Function Documentation

int gp_system_closedir

(

gp_system_dir

dir

)

closedir UNIX functionality

Parameters:

dir

directory to close

Closes a directory after readdir operations.

Returns:

a gphoto error code

const char* gp_system_filename

(

gp_system_dirent

de

)

retrieve UNIX filename out of a directory entry

Parameters:

de

directory entry as returned from gp_system_readdir()

Extracts a filename out of the passed directory entry.

Returns:

the filename of the directory entry

int gp_system_is_dir

(

const char *

dirname

)

check if passed filename is a directory

Parameters:

dirname

file name to check

Checks whether the passed in dirname is a directory and returns this as boolean.

Returns:

boolean flag whether passed filename is a directory.

int gp_system_is_file

(

const char *

filename

)

check if passed filename is a file

Parameters:

filename

file name to check

Checks whether the passed in filename is a file and returns this as boolean.

Returns:

boolean flag whether passed filename is a file.

int gp_system_mkdir

(

const char *

dirname

)

mkdir UNIX functionality

Parameters:

dirname

directory to create

Creates a new directory.

Returns:

a gphoto error code

gp_system_dir gp_system_opendir

(

const char *

dirname

)

opendir UNIX functionality

Parameters:

dirname

directory to open

Opens a directory for readdir and later closedir operations, to enumerate its contents.

Returns:

a directory handle for use in gp_system_readdir() and gp_system_closedir()

gp_system_dirent gp_system_readdir

(

gp_system_dir

d

)

readdir UNIX functionality

Parameters:

d

directory to enumerate

Reads one directory entry from the specified directory handle as returned from gp_system_opendir(). Use gp_system_filename() to extract the filename from the returned value.

Returns:

a new gp_system_dirent or NULL

int gp_system_rmdir

(

const char *

dirname

)

rmdir UNIX functionality

Parameters:

dirname

directory to remove

Removes a empty directory.

Returns:

a gphoto error code

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