evlist.h

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#ifndef __PERF_EVLIST_H
#define __PERF_EVLIST_H 1

#include <linux/list.h>
#include <stdio.h>
#include "../perf.h"
#include "event.h"
#include "evsel.h"
#include "util.h"
#include <unistd.h>

struct pollfd;
struct thread_map;
struct cpu_map;
struct perf_record_opts;

#define PERF_EVLIST__HLIST_BITS 8
#define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS)

struct perf_evlist {
    struct list_head entries;
    struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];
    int      nr_entries;
    int      nr_fds;
    int      nr_mmaps;
    int      mmap_len;
    struct {
        int cork_fd;
        pid_t   pid;
    } workload;
    bool         overwrite;
    union perf_event event_copy;
    struct perf_mmap *mmap;
    struct pollfd    *pollfd;
    struct thread_map *threads;
    struct cpu_map    *cpus;
    struct perf_evsel *selected;
};

struct perf_evsel_str_handler {
    const char *name;
    void       *handler;
};

struct perf_evlist *perf_evlist__new(struct cpu_map *cpus,
                     struct thread_map *threads);
void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus,
               struct thread_map *threads);
void perf_evlist__exit(struct perf_evlist *evlist);
void perf_evlist__delete(struct perf_evlist *evlist);

void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry);
int perf_evlist__add_default(struct perf_evlist *evlist);
int __perf_evlist__add_default_attrs(struct perf_evlist *evlist,
                     struct perf_event_attr *attrs, size_t nr_attrs);

#define perf_evlist__add_default_attrs(evlist, array) \
    __perf_evlist__add_default_attrs(evlist, array, ARRAY_SIZE(array))

int perf_evlist__add_newtp(struct perf_evlist *evlist,
               const char *sys, const char *name, void *handler);

int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter);

struct perf_evsel *
perf_evlist__find_tracepoint_by_id(struct perf_evlist *evlist, int id);

void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel,
             int cpu, int thread, u64 id);

void perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd);

struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id);

union perf_event *perf_evlist__mmap_read(struct perf_evlist *self, int idx);

int perf_evlist__open(struct perf_evlist *evlist);

void perf_evlist__config_attrs(struct perf_evlist *evlist,
                   struct perf_record_opts *opts);

int perf_evlist__prepare_workload(struct perf_evlist *evlist,
                  struct perf_record_opts *opts,
                  const char *argv[]);
int perf_evlist__start_workload(struct perf_evlist *evlist);

int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
              bool overwrite);
void perf_evlist__munmap(struct perf_evlist *evlist);

void perf_evlist__disable(struct perf_evlist *evlist);
void perf_evlist__enable(struct perf_evlist *evlist);

void perf_evlist__set_selected(struct perf_evlist *evlist,
                   struct perf_evsel *evsel);

static inline void perf_evlist__set_maps(struct perf_evlist *evlist,
                     struct cpu_map *cpus,
                     struct thread_map *threads)
{
    evlist->cpus    = cpus;
    evlist->threads = threads;
}

int perf_evlist__create_maps(struct perf_evlist *evlist,
                 struct perf_target *target);
void perf_evlist__delete_maps(struct perf_evlist *evlist);
int perf_evlist__apply_filters(struct perf_evlist *evlist);

void __perf_evlist__set_leader(struct list_head *list);
void perf_evlist__set_leader(struct perf_evlist *evlist);

u64 perf_evlist__sample_type(struct perf_evlist *evlist);
bool perf_evlist__sample_id_all(struct perf_evlist *evlist);
u16 perf_evlist__id_hdr_size(struct perf_evlist *evlist);

int perf_evlist__parse_sample(struct perf_evlist *evlist, union perf_event *event,
                  struct perf_sample *sample);

bool perf_evlist__valid_sample_type(struct perf_evlist *evlist);
bool perf_evlist__valid_sample_id_all(struct perf_evlist *evlist);

void perf_evlist__splice_list_tail(struct perf_evlist *evlist,
                   struct list_head *list,
                   int nr_entries);

static inline struct perf_evsel *perf_evlist__first(struct perf_evlist *evlist)
{
    return list_entry(evlist->entries.next, struct perf_evsel, node);
}

static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist)
{
    return list_entry(evlist->entries.prev, struct perf_evsel, node);
}

size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp);
#endif /* __PERF_EVLIST_H */