/builddir/build/BUILD/gfal2-2.0.0/src/common/gfal_common_filedescriptor.h File Reference

header file for the file descriptor management More...

#include <glib.h>
#include <stdlib.h>
#include <pthread.h>
#include "gfal_prototypes.h"
#include "gfal_constants.h"

Go to the source code of this file.

Data Structures
struct	_gfal_file_descriptor_container
struct	_gfal_file_handle_
Functions
gfal_fdesc_container_handle	gfal_file_descriptor_handle_create (GDestroyNotify destroyer)
int	gfal_add_new_file_desc (gfal_fdesc_container_handle fhandle, gpointer pfile, GError **err)
gboolean	gfal_remove_file_desc (gfal_fdesc_container_handle fhandle, int key, GError **err)
gpointer	gfal_get_file_desc (gfal_fdesc_container_handle fhandle, int key, GError **err)
gfal_file_handle	gfal_file_handle_bind (gfal_fdesc_container_handle h, int file_desc, GError **err)
gfal_file_handle	gfal_file_handle_new (const char *module_name, gpointer fdesc)
gfal_file_handle	gfal_file_handle_ext_new (const char *module_name, gpointer fdesc, gpointer ext_data)
void	gfal_file_handle_delete (gfal_file_handle fh)
void	gfal_file_handle_lock (gfal_file_handle fh)
void	gfal_file_handle_unlock (gfal_file_handle fh)

---

Detailed Description

header file for the file descriptor management

Author:

Devresse Adrien

Version:

2.0

Date:

22/05/2011

---

Function Documentation

int gfal_add_new_file_desc	(	gfal_fdesc_container_handle	fhandle,
		gpointer	pfile,
		GError **	err
	)

Add the given file handle to the and return a file descriptor

Returns:

return the associated key if success else 0 and set err

gfal_file_handle gfal_file_handle_bind	(	gfal_fdesc_container_handle	h,
		int	file_desc,
		GError **	err
	)

return the file handle associated with the file_desc

Warning:

does not free the handle

References gfal_get_file_desc().

Referenced by gfal_posix_internal_lseek(), gfal_posix_internal_pread(), gfal_posix_internal_pwrite(), gfal_posix_internal_read(), gfal_posix_internal_readdir(), and gfal_posix_internal_write().

void gfal_file_handle_delete

(

gfal_file_handle

fh

)

Delete a gfal_file handle

gfal_file_handle gfal_file_handle_ext_new	(	const char *	module_name,
		gpointer	fdesc,
		gpointer	ext_data
	)

same than gfal_file_handle but with external data storage support

gpointer gfal_get_file_desc	(	gfal_fdesc_container_handle	fhandle,
		int	key,
		GError **	err
	)

return the associated file handle for the given file descriptor or NULL if the key is not present and err is set

Referenced by gfal_file_handle_bind().

gboolean gfal_remove_file_desc	(	gfal_fdesc_container_handle	fhandle,
		int	key,
		GError **	err
	)

remove the associated file handle associated with the given file descriptor return true if success else false