tools/perf/util/thread_map.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __PERF_THREAD_MAP_H
   3 #define __PERF_THREAD_MAP_H
   4
   5 #include <sys/types.h>
   6 #include <stdio.h>
   7 #include <linux/refcount.h>
   8
   9 struct thread_map_data {
  10         pid_t    pid;
  11         char    *comm;
  12 };
  13
  14 struct thread_map {
  15         refcount_t refcnt;
  16         int nr;
  17         int err_thread;
  18         struct thread_map_data map[];
  19 };
  20
  21 struct thread_map_event;
  22
  23 struct thread_map *thread_map__new_dummy(void);
  24 struct thread_map *thread_map__new_by_pid(pid_t pid);
  25 struct thread_map *thread_map__new_by_tid(pid_t tid);
  26 struct thread_map *thread_map__new_by_uid(uid_t uid);
  27 struct thread_map *thread_map__new_all_cpus(void);
  28 struct thread_map *thread_map__new(pid_t pid, pid_t tid, uid_t uid);
  29 struct thread_map *thread_map__new_event(struct thread_map_event *event);
  30
  31 struct thread_map *thread_map__get(struct thread_map *map);
  32 void thread_map__put(struct thread_map *map);
  33
  34 struct thread_map *thread_map__new_str(const char *pid,
  35                 const char *tid, uid_t uid, bool all_threads);
  36
  37 struct thread_map *thread_map__new_by_tid_str(const char *tid_str);
  38
  39 size_t thread_map__fprintf(struct thread_map *threads, FILE *fp);
  40
  41 static inline int thread_map__nr(struct thread_map *threads)
  42 {
  43         return threads ? threads->nr : 1;
  44 }
  45
  46 static inline pid_t thread_map__pid(struct thread_map *map, int thread)
  47 {
  48         return map->map[thread].pid;
  49 }
  50
  51 static inline void
  52 thread_map__set_pid(struct thread_map *map, int thread, pid_t pid)
  53 {
  54         map->map[thread].pid = pid;
  55 }
  56
  57 static inline char *thread_map__comm(struct thread_map *map, int thread)
  58 {
  59         return map->map[thread].comm;
  60 }
  61
  62 void thread_map__read_comms(struct thread_map *threads);
  63 bool thread_map__has(struct thread_map *threads, pid_t pid);
  64 int thread_map__remove(struct thread_map *threads, int idx);
  65 #endif  /* __PERF_THREAD_MAP_H */