1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __LIBPERF_INTERNAL_LIB_H
3 #define __LIBPERF_INTERNAL_LIB_H
7 extern unsigned int page_size;
9 ssize_t readn(int fd, void *buf, size_t n);
10 ssize_t writen(int fd, const void *buf, size_t n);
12 ssize_t preadn(int fd, void *buf, size_t n, off_t offs);
14 #endif /* __LIBPERF_INTERNAL_CPUMAP_H */