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glibc/sysdeps/posix/dirstream.h
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/* Copyright (C) 1993, 1995, 1996, 2007 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
The GNU C 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. | |
The GNU C 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 the GNU C Library; if not, see | |
<http://www.gnu.org/licenses/>. */ | |
#ifndef _DIRSTREAM_H | |
#define _DIRSTREAM_H 1 | |
#include <sys/types.h> | |
#include <bits/libc-lock.h> | |
/* Directory stream type. | |
The miscellaneous Unix `readdir' implementations read directory data | |
into a buffer and return `struct dirent *' pointers into it. */ | |
struct __dirstream | |
{ | |
int fd; /* File descriptor. */ | |
__libc_lock_define (, lock) /* Mutex lock for this structure. */ | |
size_t allocation; /* Space allocated for the block. */ | |
size_t size; /* Total valid data in the block. */ | |
size_t offset; /* Current offset into the block. */ | |
off_t filepos; /* Position of next entry to read. */ | |
/* Directory block. */ | |
char data[0] __attribute__ ((aligned (__alignof__ (void*)))); | |
}; | |
#define _DIR_dirfd(dirp) ((dirp)->fd) | |
#endif /* dirstream.h */ |