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Linux/tools/perf/util/thread_map.h

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

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