tools/perf/util/target.h

   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
  50 static inline bool perf_target__has_task(struct perf_target *target)
  51 {
  52         return target->tid || target->pid || target->uid_str;
  53 }
  54
  55 static inline bool perf_target__has_cpu(struct perf_target *target)
  56 {
  57         return target->system_wide || target->cpu_list;
  58 }
  59
  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 */