1 #pragma once 2 #undef NDEBUG 3 #include <assert.h> 4 #include <dirent.h> 5 #include <errno.h> 6 #include <stdbool.h> 7 #include <stdlib.h> 8 #include <string.h> 9 #include <unistd.h> 10 #include <sys/syscall.h> 11 12 static inline pid_t sys_getpid(void) 13 { 14 return syscall(SYS_getpid); 15 } 16 17 static inline pid_t sys_gettid(void) 18 { 19 return syscall(SYS_gettid); 20 } 21 22 static inline bool streq(const char *s1, const char *s2) 23 { 24 return strcmp(s1, s2) == 0; 25 } 26 27 static unsigned long long xstrtoull(const char *p, char **end) 28 { 29 if (*p == '0') { 30 *end = (char *)p + 1; 31 return 0; 32 } else if ('1' <= *p && *p <= '9') { 33 unsigned long long val; 34 35 errno = 0; 36 val = strtoull(p, end, 10); 37 assert(errno == 0); 38 return val; 39 } else 40 assert(0); 41 } 42 43 static struct dirent *xreaddir(DIR *d) 44 { 45 struct dirent *de; 46 47 errno = 0; 48 de = readdir(d); 49 assert(de || errno == 0); 50 return de; 51 } 52