tools/perf/util/session.h

   1 #ifndef __PERF_SESSION_H
   2 #define __PERF_SESSION_H
   3
   4 #include "event.h"
   5 #include "header.h"
   6 #include "symbol.h"
   7 #include "thread.h"
   8 #include <linux/rbtree.h>
   9 #include "../../../include/linux/perf_event.h"
  10
  11 struct sample_queue;
  12 struct ip_callchain;
  13 struct thread;
  14
  15 struct ordered_samples {
  16         u64                     last_flush;
  17         u64                     flush_limit;
  18         struct list_head        samples_head;
  19         struct sample_queue     *last_inserted;
  20 };
  21
  22 struct perf_session {
  23         struct perf_header      header;
  24         unsigned long           size;
  25         unsigned long           mmap_window;
  26         struct rb_root          threads;
  27         struct thread           *last_match;
  28         struct rb_root          machines;
  29         struct events_stats     events_stats;
  30         struct rb_root          stats_by_id;
  31         unsigned long           event_total[PERF_RECORD_MAX];
  32         unsigned long           unknown_events;
  33         struct rb_root          hists;
  34         u64                     sample_type;
  35         int                     fd;
  36         bool                    fd_pipe;
  37         int                     cwdlen;
  38         char                    *cwd;
  39         struct ordered_samples  ordered_samples;
  40         char filename[0];
  41 };
  42
  43 typedef int (*event_op)(event_t *self, struct perf_session *session);
  44
  45 struct perf_event_ops {
  46         event_op sample,
  47                  mmap,
  48                  comm,
  49                  fork,
  50                  exit,
  51                  lost,
  52                  read,
  53                  throttle,
  54                  unthrottle,
  55                  attr,
  56                  event_type,
  57                  tracing_data,
  58                  build_id;
  59         bool    ordered_samples;
  60 };
  61
  62 struct perf_session *perf_session__new(const char *filename, int mode, bool force);
  63 void perf_session__delete(struct perf_session *self);
  64
  65 void perf_event_header__bswap(struct perf_event_header *self);
  66
  67 int __perf_session__process_events(struct perf_session *self,
  68                                    u64 data_offset, u64 data_size, u64 size,
  69                                    struct perf_event_ops *ops);
  70 int perf_session__process_events(struct perf_session *self,
  71                                  struct perf_event_ops *event_ops);
  72
  73 struct map_symbol *perf_session__resolve_callchain(struct perf_session *self,
  74                                                    struct thread *thread,
  75                                                    struct ip_callchain *chain,
  76                                                    struct symbol **parent);
  77
  78 bool perf_session__has_traces(struct perf_session *self, const char *msg);
  79
  80 int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps,
  81                                              const char *symbol_name,
  82                                              u64 addr);
  83
  84 void mem_bswap_64(void *src, int byte_size);
  85
  86 int perf_session__create_kernel_maps(struct perf_session *self);
  87
  88 int do_read(int fd, void *buf, size_t size);
  89 void perf_session__update_sample_type(struct perf_session *self);
  90
  91 #ifdef NO_NEWT_SUPPORT
  92 static inline int perf_session__browse_hists(struct rb_root *hists __used,
  93                                               u64 nr_hists __used,
  94                                               u64 session_total __used,
  95                                              const char *helpline __used,
  96                                              const char *input_name __used)
  97 {
  98         return 0;
  99 }
 100 #else
 101 int perf_session__browse_hists(struct rb_root *hists, u64 nr_hists,
 102                                u64 session_total, const char *helpline,
 103                                const char *input_name);
 104 #endif
 105
 106 static inline
 107 struct machine *perf_session__find_host_machine(struct perf_session *self)
 108 {
 109         return machines__find_host(&self->machines);
 110 }
 111
 112 static inline
 113 struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid)
 114 {
 115         return machines__find(&self->machines, pid);
 116 }
 117
 118 static inline
 119 struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid)
 120 {
 121         return machines__findnew(&self->machines, pid);
 122 }
 123
 124 static inline
 125 void perf_session__process_machines(struct perf_session *self,
 126                                     machine__process_t process)
 127 {
 128         return machines__process(&self->machines, process, self);
 129 }
 130
 131 static inline
 132 size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp)
 133 {
 134         return machines__fprintf_dsos(&self->machines, fp);
 135 }
 136
 137 static inline
 138 size_t perf_session__fprintf_dsos_buildid(struct perf_session *self, FILE *fp,
 139                                           bool with_hits)
 140 {
 141         return machines__fprintf_dsos_buildid(&self->machines, fp, with_hits);
 142 }
 143 #endif /* __PERF_SESSION_H */