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0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 #ifndef __LIBPERF_INTERNAL_LIB_H
0003 #define __LIBPERF_INTERNAL_LIB_H
0004 
0005 #include <sys/types.h>
0006 
0007 extern unsigned int page_size;
0008 
0009 ssize_t readn(int fd, void *buf, size_t n);
0010 ssize_t writen(int fd, const void *buf, size_t n);
0011 
0012 ssize_t preadn(int fd, void *buf, size_t n, off_t offs);
0013 
0014 #endif /* __LIBPERF_INTERNAL_CPUMAP_H */