1 #ifndef _PERF_TARGET_H 2 #define _PERF_TARGET_H 3 4 #include <stdbool.h> 5 #include <sys/types.h> 6 7 struct target { 8 const char *pid; 9 const char *tid; 10 const char *cpu_list; 11 const char *uid_str; 12 uid_t uid; 13 bool system_wide; 14 bool uses_mmap; 15 bool default_per_cpu; 16 bool per_thread; 17 }; 18 19 enum target_errno { 20 TARGET_ERRNO__SUCCESS = 0, 21 22 /* 23 * Choose an arbitrary negative big number not to clash with standard 24 * errno since SUS requires the errno has distinct positive values. 25 * See 'Issue 6' in the link below. 26 * 27 * http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html 28 */ 29 __TARGET_ERRNO__START = -10000, 30 31 /* for target__validate() */ 32 TARGET_ERRNO__PID_OVERRIDE_CPU = __TARGET_ERRNO__START, 33 TARGET_ERRNO__PID_OVERRIDE_UID, 34 TARGET_ERRNO__UID_OVERRIDE_CPU, 35 TARGET_ERRNO__PID_OVERRIDE_SYSTEM, 36 TARGET_ERRNO__UID_OVERRIDE_SYSTEM, 37 TARGET_ERRNO__SYSTEM_OVERRIDE_THREAD, 38 39 /* for target__parse_uid() */ 40 TARGET_ERRNO__INVALID_UID, 41 TARGET_ERRNO__USER_NOT_FOUND, 42 43 __TARGET_ERRNO__END, 44 }; 45 46 enum target_errno target__validate(struct target *target); 47 enum target_errno target__parse_uid(struct target *target); 48 49 int target__strerror(struct target *target, int errnum, char *buf, size_t buflen); 50 51 static inline bool target__has_task(struct target *target) 52 { 53 return target->tid || target->pid || target->uid_str; 54 } 55 56 static inline bool target__has_cpu(struct target *target) 57 { 58 return target->system_wide || target->cpu_list; 59 } 60 61 static inline bool target__none(struct target *target) 62 { 63 return !target__has_task(target) && !target__has_cpu(target); 64 } 65 66 static inline bool target__uses_dummy_map(struct target *target) 67 { 68 bool use_dummy = false; 69 70 if (target->default_per_cpu) 71 use_dummy = target->per_thread ? true : false; 72 else if (target__has_task(target) || 73 (!target__has_cpu(target) && !target->uses_mmap)) 74 use_dummy = true; 75 76 return use_dummy; 77 } 78 79 #endif /* _PERF_TARGET_H */ 80