#ifndef _PERF_PATH_H#define _PERF_PATH_H int path__join(char *bf, size_t size, const char *path1, const char *path2);int path__join3(char *bf, size_t size, const char *path1, const char *path2, const char *path3); bool is_regular_file(const char *file); #endif /* _PERF_PATH_H */