forked from enlightenment/efl
295 lines
9.5 KiB
C
295 lines
9.5 KiB
C
/* EINA - EFL data type library
|
|
* Copyright (C) 2011 Cedric Bail
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library;
|
|
* if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef EINA_XATTR_H_
|
|
#define EINA_XATTR_H_
|
|
|
|
#include "eina_types.h"
|
|
|
|
#include <sys/types.h>
|
|
|
|
/**
|
|
* @addtogroup Eina_Tools_Group Tools
|
|
*
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @typedef Eina_Xattr_Flags
|
|
* define extended attribute creation
|
|
*
|
|
* @since 1.1
|
|
*/
|
|
typedef enum {
|
|
EINA_XATTR_INSERT, /**< This is the default behavior, it will either create or replace the extended attribute */
|
|
EINA_XATTR_REPLACE, /**< This will only succeed if the extended attribute previously existed */
|
|
EINA_XATTR_CREATED /**< This will only succeed if the extended attribute wasn't previously set */
|
|
} Eina_Xattr_Flags;
|
|
|
|
typedef struct _Eina_Xattr Eina_Xattr;
|
|
struct _Eina_Xattr
|
|
{
|
|
const char *name; /**< The extended attribute name @since 1.2 */
|
|
const char *value; /**< The extended attribute value @since 1.2 */
|
|
|
|
size_t length; /**< The length of the extended attribute value @since 1.2 */
|
|
};
|
|
|
|
/**
|
|
* @brief Gets an iterator that lists all extended attribute of a file.
|
|
*
|
|
* @param[in] file The filename to retrieve the extended attribute list from.
|
|
* @return an iterator.
|
|
*
|
|
* The iterator will not allocate any data during the iteration step, so you need to copy them yourself
|
|
* if you need.
|
|
*
|
|
* @since 1.1
|
|
*/
|
|
EAPI Eina_Iterator *eina_xattr_ls(const char *file) EINA_ARG_NONNULL(1) EINA_WARN_UNUSED_RESULT;
|
|
|
|
/**
|
|
* @brief Gets an iterator that list all extended attribute value related to a fd.
|
|
*
|
|
* @param[in] file The filename to retrieve the extended attribute list from.
|
|
* @return An iterator.
|
|
*
|
|
* The iterator will not allocate any data during the iteration step, so you need to copy them yourself
|
|
* if you need. The iterator will provide an Eina_Xattr structure.
|
|
*
|
|
* @since 1.2
|
|
*/
|
|
EAPI Eina_Iterator *eina_xattr_value_ls(const char *file) EINA_ARG_NONNULL(1) EINA_WARN_UNUSED_RESULT;
|
|
|
|
/**
|
|
* @brief Gets an iterator that list all extended attribute related to a fd.
|
|
*
|
|
* @param[in] fd The file descriptor to retrieve the extended attribute list from.
|
|
* @return an iterator.
|
|
*
|
|
* The iterator will not allocate any data during the iteration step, so you need to copy them yourself
|
|
* if you need.
|
|
*
|
|
* @since 1.2
|
|
*/
|
|
EAPI Eina_Iterator *eina_xattr_fd_ls(int fd) EINA_WARN_UNUSED_RESULT;
|
|
|
|
/**
|
|
* @brief Gets an iterator that list all extended attribute value related to a fd.
|
|
*
|
|
* @param[in] fd The file descriptor to retrieve the extended attribute list from.
|
|
* @return An iterator.
|
|
*
|
|
* The iterator will not allocate any data during the iteration step, so you need to copy them yourself
|
|
* if you need. The iterator will provide an Eina_Xattr structure.
|
|
*
|
|
* @since 1.2
|
|
*/
|
|
EAPI Eina_Iterator *eina_xattr_value_fd_ls(int fd) EINA_WARN_UNUSED_RESULT;
|
|
|
|
/**
|
|
* @brief Copies the extended attribute from one file to another.
|
|
*
|
|
* @param[in] src source file to use as input.
|
|
* @param[in] dst destination file to use as output.
|
|
* @return #EINA_TRUE on success, #EINA_FALSE otherwise.
|
|
*
|
|
* @see eina_xattr_fd_copy()
|
|
*
|
|
* @since 1.8
|
|
*/
|
|
EAPI Eina_Bool eina_xattr_copy(const char *src, const char *dst) EINA_ARG_NONNULL(1, 2);
|
|
|
|
/**
|
|
* @brief Copies the extended attribute from one file descriptor to another.
|
|
*
|
|
* @param[in] src source file descriptor to use as input.
|
|
* @param[in] dst destination file descriptor to use as output.
|
|
* @return #EINA_TRUE on success, #EINA_FALSE otherwise.
|
|
*
|
|
* @see eina_xattr_copy()
|
|
*
|
|
* @since 1.8
|
|
*/
|
|
EAPI Eina_Bool eina_xattr_fd_copy(int src, int dst);
|
|
|
|
/**
|
|
* @brief Retrieves an extended attribute from a file.
|
|
*
|
|
* @param[in] file The file to retrieve the extended attribute from.
|
|
* @param[in] attribute The extended attribute name to retrieve.
|
|
* @param[out] size The size of the retrieved extended attribute.
|
|
* @return the allocated data that hold the extended attribute value.
|
|
*
|
|
* It will return @c NULL and *size will be @c 0 if it fails.
|
|
*
|
|
* @since 1.1
|
|
*/
|
|
EAPI void *eina_xattr_get(const char *file, const char *attribute, ssize_t *size) EINA_ARG_NONNULL(1, 2, 3) EINA_WARN_UNUSED_RESULT;
|
|
|
|
/**
|
|
* @brief Retrieves an extended attribute from a file descriptor.
|
|
*
|
|
* @param[in] fd The file descriptor to retrieve the extended attribute from.
|
|
* @param[in] attribute The extended attribute name to retrieve.
|
|
* @param[out] size The size of the retrieved extended attribute.
|
|
* @return the allocated data that hold the extended attribute value.
|
|
*
|
|
* It will return @c NULL and *size will be @c 0 if it fails.
|
|
*
|
|
* @since 1.8
|
|
*/
|
|
EAPI void *eina_xattr_fd_get(int fd, const char *attribute, ssize_t *size) EINA_ARG_NONNULL(2, 3) EINA_WARN_UNUSED_RESULT;
|
|
|
|
/**
|
|
* @brief Sets an extended attribute on a file.
|
|
*
|
|
* @param[in] file The file to set the extended attribute to.
|
|
* @param[in] attribute The attribute to set.
|
|
* @param[in] data The data to set.
|
|
* @param[in] length The length of the data to set.
|
|
* @param[in] flags Define the set policy.
|
|
* @return #EINA_TRUE on success, #EINA_FALSE otherwise.
|
|
*
|
|
* @since 1.1
|
|
*/
|
|
EAPI Eina_Bool eina_xattr_set(const char *file, const char *attribute, const void *data, ssize_t length, Eina_Xattr_Flags flags) EINA_ARG_NONNULL(1, 2, 3);
|
|
|
|
/**
|
|
* @brief Sets an extended attribute on a file descriptor.
|
|
*
|
|
* @param[in] fd The file descriptor to set the extended attribute to.
|
|
* @param[in] attribute The attribute to set.
|
|
* @param[in] data The data to set.
|
|
* @param[in] length The length of the data to set.
|
|
* @param[in] flags Define the set policy.
|
|
* @return #EINA_TRUE on success, #EINA_FALSE otherwise.
|
|
*
|
|
* @since 1.8
|
|
*/
|
|
EAPI Eina_Bool eina_xattr_fd_set(int fd, const char *attribute, const void *data, ssize_t length, Eina_Xattr_Flags flags) EINA_ARG_NONNULL(2, 3);
|
|
|
|
|
|
/**
|
|
* @brief Deletes (removes) an extended attribute from a file.
|
|
*
|
|
* @param[in] file The file to del the extended attribute from.
|
|
* @param[in] attribute The attribute to del.
|
|
* @return #EINA_TRUE on success, #EINA_FALSE otherwise.
|
|
*
|
|
* @since 1.8
|
|
*/
|
|
EAPI Eina_Bool eina_xattr_del(const char *file, const char *attribute) EINA_ARG_NONNULL(1, 2);
|
|
|
|
/**
|
|
* @brief Deletes (removes) an extended attribute from a file descriptor.
|
|
*
|
|
* @param[in] fd The file descriptor to del the extended attribute from.
|
|
* @param[in] attribute The attribute to del.
|
|
* @return #EINA_TRUE on success, #EINA_FALSE otherwise.
|
|
*
|
|
* @since 1.8
|
|
*/
|
|
EAPI Eina_Bool eina_xattr_fd_del(int fd, const char *attribute) EINA_ARG_NONNULL(2);
|
|
|
|
/**
|
|
* @brief Sets a string as a extended attribute properties.
|
|
*
|
|
* @param[in] file The file to set the string to.
|
|
* @param[in] attribute The attribute to set.
|
|
* @param[in] data The NULL-terminated string to set.
|
|
* @param[in] flags Define the set policy.
|
|
* @return EINA_TRUE on success, EINA_FALSE otherwise.
|
|
*
|
|
* @since 1.1
|
|
*/
|
|
EAPI Eina_Bool eina_xattr_string_set(const char *file, const char *attribute, const char *data, Eina_Xattr_Flags flags);
|
|
|
|
/**
|
|
* @brief Gets a string from an extended attribute properties.
|
|
*
|
|
* @param[in] file The file to get the string from.
|
|
* @param[in] attribute The attribute to get.
|
|
* @return A valid string on success, @c NULL otherwise.
|
|
*
|
|
* This call check that the string is properly NULL-terminated before returning it.
|
|
*
|
|
* @since 1.1
|
|
*/
|
|
EAPI char *eina_xattr_string_get(const char *file, const char *attribute);
|
|
|
|
/**
|
|
* @brief Sets a double as a extended attribute properties.
|
|
*
|
|
* @param[in] file The file to set the double to.
|
|
* @param[in] attribute The attribute to set.
|
|
* @param[in] value The NULL-terminated double to set.
|
|
* @param[in] flags Define the set policy.
|
|
* @return #EINA_TRUE on success, #EINA_FALSE otherwise.
|
|
*
|
|
* @since 1.1
|
|
*/
|
|
EAPI Eina_Bool eina_xattr_double_set(const char *file, const char *attribute, double value, Eina_Xattr_Flags flags);
|
|
|
|
/**
|
|
* @brief Gets a double from an extended attribute properties.
|
|
*
|
|
* @param[in] file The file to get the string from.
|
|
* @param[in] attribute The attribute to get.
|
|
* @param[out] value Where to put the extracted value
|
|
* @return #EINA_TRUE on success, #EINA_FALSE otherwise.
|
|
*
|
|
* This call check that the double is correctly set.
|
|
*
|
|
* @since 1.1
|
|
*/
|
|
EAPI Eina_Bool eina_xattr_double_get(const char *file, const char *attribute, double *value);
|
|
|
|
/**
|
|
* @brief Sets an int as a extended attribute properties.
|
|
*
|
|
* @param[in] file The file to set the int to.
|
|
* @param[in] attribute The attribute to set.
|
|
* @param[in] value The NULL-terminated int to set.
|
|
* @param[in] flags Define the set policy.
|
|
* @return #EINA_TRUE on success, #EINA_FALSE otherwise.
|
|
*
|
|
* @since 1.1
|
|
*/
|
|
EAPI Eina_Bool eina_xattr_int_set(const char *file, const char *attribute, int value, Eina_Xattr_Flags flags);
|
|
|
|
/**
|
|
* @brief Gets a int from an extended attribute properties.
|
|
*
|
|
* @param[in] file The file to get the string from.
|
|
* @param[in] attribute The attribute to get.
|
|
* @param[out] value Where to put the extracted value
|
|
* @return #EINA_TRUE on success, #EINA_FALSE otherwise.
|
|
*
|
|
* This call check that the int is correctly set.
|
|
*
|
|
* @since 1.1
|
|
*/
|
|
EAPI Eina_Bool eina_xattr_int_get(const char *file, const char *attribute, int *value);
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#endif
|