1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __LIBPERF_INTERNAL_LIB_H
 3#define __LIBPERF_INTERNAL_LIB_H
 4
 5#include <sys/types.h>
 6
 7extern unsigned int page_size;
 8
 9ssize_t readn(int fd, void *buf, size_t n);
10ssize_t writen(int fd, const void *buf, size_t n);
11
12ssize_t preadn(int fd, void *buf, size_t n, off_t offs);
13
14#endif /* __LIBPERF_INTERNAL_CPUMAP_H */