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   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                     next_flush;
  18         u64                     max_timestamp;
  19         struct list_head        samples_head;
  20         struct sample_queue     *last_inserted;
  21 };
  22
  23 struct perf_session {
  24         struct perf_header      header;
  25         unsigned long           size;
  26         unsigned long           mmap_window;
  27         struct rb_root          threads;
  28         struct thread           *last_match;
  29         struct machine          host_machine;
  30         struct rb_root          machines;
  31         struct events_stats     events_stats;
  32         struct rb_root          stats_by_id;
  33         unsigned long           event_total[PERF_RECORD_MAX];
  34         unsigned long           unknown_events;
  35         struct rb_root          hists;
  36         u64                     sample_type;
  37         int                     fd;
  38         bool                    fd_pipe;
  39         bool                    repipe;
  40         int                     cwdlen;
  41         char                    *cwd;
  42         struct ordered_samples  ordered_samples;
  43         char filename[0];
  44 };
  45
  46 struct perf_event_ops;
  47
  48 typedef int (*event_op)(event_t *self, struct perf_session *session);
  49 typedef int (*event_op2)(event_t *self, struct perf_session *session,
  50                          struct perf_event_ops *ops);
  51
  52 struct perf_event_ops {
  53         event_op        sample,
  54                         mmap,
  55                         comm,
  56                         fork,
  57                         exit,
  58                         lost,
  59                         read,
  60                         throttle,
  61                         unthrottle,
  62                         attr,
  63                         event_type,
  64                         tracing_data,
  65                         build_id;
  66         event_op2       finished_round;
  67         bool            ordered_samples;
  68 };
  69
  70 struct perf_session *perf_session__new(const char *filename, int mode, bool force, bool repipe);
  71 void perf_session__delete(struct perf_session *self);
  72
  73 void perf_event_header__bswap(struct perf_event_header *self);
  74
  75 int __perf_session__process_events(struct perf_session *self,
  76                                    u64 data_offset, u64 data_size, u64 size,
  77                                    struct perf_event_ops *ops);
  78 int perf_session__process_events(struct perf_session *self,
  79                                  struct perf_event_ops *event_ops);
  80
  81 struct map_symbol *perf_session__resolve_callchain(struct perf_session *self,
  82                                                    struct thread *thread,
  83                                                    struct ip_callchain *chain,
  84                                                    struct symbol **parent);
  85
  86 bool perf_session__has_traces(struct perf_session *self, const char *msg);
  87
  88 int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps,
  89                                              const char *symbol_name,
  90                                              u64 addr);
  91
  92 void mem_bswap_64(void *src, int byte_size);
  93
  94 int perf_session__create_kernel_maps(struct perf_session *self);
  95
  96 int do_read(int fd, void *buf, size_t size);
  97 void perf_session__update_sample_type(struct perf_session *self);
  98
  99 #ifdef NO_NEWT_SUPPORT
 100 static inline int perf_session__browse_hists(struct rb_root *hists __used,
 101                                               u64 nr_hists __used,
 102                                               u64 session_total __used,
 103                                              const char *helpline __used,
 104                                              const char *input_name __used)
 105 {
 106         return 0;
 107 }
 108 #else
 109 int perf_session__browse_hists(struct rb_root *hists, u64 nr_hists,
 110                                u64 session_total, const char *helpline,
 111                                const char *input_name);
 112 #endif
 113
 114 static inline
 115 struct machine *perf_session__find_host_machine(struct perf_session *self)
 116 {
 117         return &self->host_machine;
 118 }
 119
 120 static inline
 121 struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid)
 122 {
 123         if (pid == HOST_KERNEL_ID)
 124                 return &self->host_machine;
 125         return machines__find(&self->machines, pid);
 126 }
 127
 128 static inline
 129 struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid)
 130 {
 131         if (pid == HOST_KERNEL_ID)
 132                 return &self->host_machine;
 133         return machines__findnew(&self->machines, pid);
 134 }
 135
 136 static inline
 137 void perf_session__process_machines(struct perf_session *self,
 138                                     machine__process_t process)
 139 {
 140         process(&self->host_machine, self);
 141         return machines__process(&self->machines, process, self);
 142 }
 143
 144 size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp);
 145
 146 static inline
 147 size_t perf_session__fprintf_dsos_buildid(struct perf_session *self, FILE *fp,
 148                                           bool with_hits)
 149 {
 150         return machines__fprintf_dsos_buildid(&self->machines, fp, with_hits);
 151 }
 152 #endif /* __PERF_SESSION_H */