tools/perf/util/evlist.h

   1 #ifndef __PERF_EVLIST_H
   2 #define __PERF_EVLIST_H 1
   3
   4 #include <linux/list.h>
   5 #include "../perf.h"
   6 #include "event.h"
   7
   8 struct pollfd;
   9 struct thread_map;
  10 struct cpu_map;
  11
  12 #define PERF_EVLIST__HLIST_BITS 8
  13 #define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS)
  14
  15 struct perf_evlist {
  16         struct list_head entries;
  17         struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];
  18         int              nr_entries;
  19         int              nr_fds;
  20         int              mmap_len;
  21         bool             overwrite;
  22         union perf_event event_copy;
  23         struct perf_mmap *mmap;
  24         struct pollfd    *pollfd;
  25         struct thread_map *threads;
  26         struct cpu_map    *cpus;
  27 };
  28
  29 struct perf_evsel;
  30
  31 struct perf_evlist *perf_evlist__new(struct cpu_map *cpus,
  32                                      struct thread_map *threads);
  33 void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus,
  34                        struct thread_map *threads);
  35 void perf_evlist__exit(struct perf_evlist *evlist);
  36 void perf_evlist__delete(struct perf_evlist *evlist);
  37
  38 void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry);
  39 int perf_evlist__add_default(struct perf_evlist *evlist);
  40
  41 int perf_evlist__alloc_pollfd(struct perf_evlist *evlist);
  42 void perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd);
  43
  44 struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id);
  45
  46 union perf_event *perf_evlist__read_on_cpu(struct perf_evlist *self, int cpu);
  47
  48 int perf_evlist__alloc_mmap(struct perf_evlist *evlist);
  49 int perf_evlist__mmap(struct perf_evlist *evlist, int pages, bool overwrite);
  50 void perf_evlist__munmap(struct perf_evlist *evlist);
  51
  52 static inline void perf_evlist__set_maps(struct perf_evlist *evlist,
  53                                          struct cpu_map *cpus,
  54                                          struct thread_map *threads)
  55 {
  56         evlist->cpus    = cpus;
  57         evlist->threads = threads;
  58 }
  59
  60 int perf_evlist__create_maps(struct perf_evlist *evlist, pid_t target_pid,
  61                              pid_t target_tid, const char *cpu_list);
  62 void perf_evlist__delete_maps(struct perf_evlist *evlist);
  63
  64 #endif /* __PERF_EVLIST_H */