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         struct thread_map_data map[];
  18 };
  19
  20 struct thread_map_event;
  21
  22 struct thread_map *thread_map__new_dummy(void);
  23 struct thread_map *thread_map__new_by_pid(pid_t pid);
  24 struct thread_map *thread_map__new_by_tid(pid_t tid);
  25 struct thread_map *thread_map__new_by_uid(uid_t uid);
  26 struct thread_map *thread_map__new_all_cpus(void);
  27 struct thread_map *thread_map__new(pid_t pid, pid_t tid, uid_t uid);
  28 struct thread_map *thread_map__new_event(struct thread_map_event *event);
  29
  30 struct thread_map *thread_map__get(struct thread_map *map);
  31 void thread_map__put(struct thread_map *map);
  32
  33 struct thread_map *thread_map__new_str(const char *pid,
  34                 const char *tid, uid_t uid, bool per_thread);
  35
  36 struct thread_map *thread_map__new_by_tid_str(const char *tid_str);
  37
  38 size_t thread_map__fprintf(struct thread_map *threads, FILE *fp);
  39
  40 static inline int thread_map__nr(struct thread_map *threads)
  41 {
  42         return threads ? threads->nr : 1;
  43 }
  44
  45 static inline pid_t thread_map__pid(struct thread_map *map, int thread)
  46 {
  47         return map->map[thread].pid;
  48 }
  49
  50 static inline void
  51 thread_map__set_pid(struct thread_map *map, int thread, pid_t pid)
  52 {
  53         map->map[thread].pid = pid;
  54 }
  55
  56 static inline char *thread_map__comm(struct thread_map *map, int thread)
  57 {
  58         return map->map[thread].comm;
  59 }
  60
  61 void thread_map__read_comms(struct thread_map *threads);
  62 bool thread_map__has(struct thread_map *threads, pid_t pid);
  63 int thread_map__remove(struct thread_map *threads, int idx);
  64 #endif  /* __PERF_THREAD_MAP_H */