tools/perf/util/ordered-events.h

   1 #ifndef __ORDERED_EVENTS_H
   2 #define __ORDERED_EVENTS_H
   3
   4 #include <linux/types.h>
   5 #include "tool.h"
   6
   7 struct perf_session;
   8
   9 struct ordered_event {
  10         u64                     timestamp;
  11         u64                     file_offset;
  12         union perf_event        *event;
  13         struct list_head        list;
  14 };
  15
  16 enum oe_flush {
  17         OE_FLUSH__NONE,
  18         OE_FLUSH__FINAL,
  19         OE_FLUSH__ROUND,
  20         OE_FLUSH__HALF,
  21 };
  22
  23 struct ordered_events {
  24         u64                     last_flush;
  25         u64                     next_flush;
  26         u64                     max_timestamp;
  27         u64                     max_alloc_size;
  28         u64                     cur_alloc_size;
  29         struct list_head        events;
  30         struct list_head        cache;
  31         struct list_head        to_free;
  32         struct ordered_event    *buffer;
  33         struct ordered_event    *last;
  34         int                     buffer_idx;
  35         unsigned int            nr_events;
  36         enum oe_flush           last_flush_type;
  37         bool                    copy_on_queue;
  38 };
  39
  40 struct ordered_event *ordered_events__new(struct ordered_events *oe, u64 timestamp,
  41                                           union perf_event *event);
  42 void ordered_events__delete(struct ordered_events *oe, struct ordered_event *event);
  43 int ordered_events__flush(struct perf_session *s, struct perf_tool *tool,
  44                           enum oe_flush how);
  45 void ordered_events__init(struct ordered_events *oe);
  46 void ordered_events__free(struct ordered_events *oe);
  47
  48 static inline
  49 void ordered_events__set_alloc_size(struct ordered_events *oe, u64 size)
  50 {
  51         oe->max_alloc_size = size;
  52 }
  53
  54 static inline
  55 void ordered_events__set_copy_on_queue(struct ordered_events *oe, bool copy)
  56 {
  57         oe->copy_on_queue = copy;
  58 }
  59 #endif /* __ORDERED_EVENTS_H */