15 lines · c
1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef __LIBPERF_INTERNAL_LIB_H3#define __LIBPERF_INTERNAL_LIB_H4 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 */15