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/*
* Copyright (C) 2005 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
//
// Handy utility functions and portability code.
//
#ifndef _LIBS_UTILS_MISC_H
#define _LIBS_UTILS_MISC_H
#include <sys/time.h>
#include <utils/Endian.h>
/* get #of elements in a static array */
#ifndef NELEM
# define NELEM(x) ((int) (sizeof(x) / sizeof((x)[0])))
#endif
namespace android {
/*
* Some utility functions for working with files. These could be made
* part of a "File" class.
*/
typedef enum FileType {
kFileTypeUnknown = 0,
kFileTypeNonexistent, // i.e. ENOENT
kFileTypeRegular,
kFileTypeDirectory,
kFileTypeCharDev,
kFileTypeBlockDev,
kFileTypeFifo,
kFileTypeSymlink,
kFileTypeSocket,
} FileType;
/* get the file's type; follows symlinks */
FileType getFileType(const char* fileName);
/* get the file's modification date; returns -1 w/errno set on failure */
time_t getFileModDate(const char* fileName);
typedef void (*sysprop_change_callback)(void);
void add_sysprop_change_callback(sysprop_change_callback cb, int priority);
void report_sysprop_change();
}; // namespace android
#endif // _LIBS_UTILS_MISC_H
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