1 #ifndef _PERF_TARGET_H
2 #define _PERF_TARGET_H
3
4 #include <stdbool.h>
5 #include <sys/types.h>
6
7 struct perf_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 };
16
17 enum perf_target_errno {
18 PERF_ERRNO_TARGET__SUCCESS = 0,
19
20 /*
21 * Choose an arbitrary negative big number not to clash with standard
22 * errno since SUS requires the errno has distinct positive values.
23 * See 'Issue 6' in the link below.
24 *
25 * http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
26 */
27 __PERF_ERRNO_TARGET__START = -10000,
28
29
30 /* for perf_target__validate() */
31 PERF_ERRNO_TARGET__PID_OVERRIDE_CPU = __PERF_ERRNO_TARGET__START,
32 PERF_ERRNO_TARGET__PID_OVERRIDE_UID,
33 PERF_ERRNO_TARGET__UID_OVERRIDE_CPU,
34 PERF_ERRNO_TARGET__PID_OVERRIDE_SYSTEM,
35 PERF_ERRNO_TARGET__UID_OVERRIDE_SYSTEM,
36
37 /* for perf_target__parse_uid() */
38 PERF_ERRNO_TARGET__INVALID_UID,
39 PERF_ERRNO_TARGET__USER_NOT_FOUND,
40
41 __PERF_ERRNO_TARGET__END,
42 };
43
44 enum perf_target_errno perf_target__validate(struct perf_target *target);
45 enum perf_target_errno perf_target__parse_uid(struct perf_target *target);
46
47 int perf_target__strerror(struct perf_target *target, int errnum, char *buf,
48 size_t buflen);
49
perf_target__has_task(struct perf_target * target)50 static inline bool perf_target__has_task(struct perf_target *target)
51 {
52 return target->tid || target->pid || target->uid_str;
53 }
54
perf_target__has_cpu(struct perf_target * target)55 static inline bool perf_target__has_cpu(struct perf_target *target)
56 {
57 return target->system_wide || target->cpu_list;
58 }
59
perf_target__none(struct perf_target * target)60 static inline bool perf_target__none(struct perf_target *target)
61 {
62 return !perf_target__has_task(target) && !perf_target__has_cpu(target);
63 }
64
65 #endif /* _PERF_TARGET_H */
66