1#ifndef _PERF_TARGET_H
 2#define _PERF_TARGET_H
 3
 4#include <stdbool.h>
 5#include <sys/types.h>
 6
 7struct 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
19enum 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
46enum target_errno target__validate(struct target *target);
47enum target_errno target__parse_uid(struct target *target);
48
49int target__strerror(struct target *target, int errnum, char *buf, size_t buflen);
 
50
51static inline bool target__has_task(struct target *target)
52{
53	return target->tid || target->pid || target->uid_str;
54}
55
56static inline bool target__has_cpu(struct target *target)
57{
58	return target->system_wide || target->cpu_list;
59}
60
61static inline bool target__none(struct target *target)
62{
63	return !target__has_task(target) && !target__has_cpu(target);
64}
65
66static 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 */

 1#ifndef _PERF_TARGET_H
 2#define _PERF_TARGET_H
 3
 4#include <stdbool.h>
 5#include <sys/types.h>
 6
 7struct 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
17enum 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
44enum perf_target_errno perf_target__validate(struct perf_target *target);
45enum perf_target_errno perf_target__parse_uid(struct perf_target *target);
46
47int perf_target__strerror(struct perf_target *target, int errnum, char *buf,
48			  size_t buflen);
49
50static inline bool perf_target__has_task(struct perf_target *target)
51{
52	return target->tid || target->pid || target->uid_str;
53}
54
55static inline bool perf_target__has_cpu(struct perf_target *target)
56{
57	return target->system_wide || target->cpu_list;
58}
59
60static 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 */