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sources/perf: Add a comment explaining sp-perf-counter structs.

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Eric Anholt
2018-05-16 09:37:39 +01:00
committed by Christian Hergert
parent e853c79be9
commit 380995fde5
1 changed files with 8 additions and 0 deletions
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8
lib/sources/sp-perf-counter.h
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@ -25,6 +25,14 @@
G_BEGIN_DECLS
/* Structs representing the layouts of perf records returned by the
* kernel.
*
* perf returns variable-layout structs based on the
* perf_event_sample_format selectors in perf_event_attr.sample_type.
* These structs are the particular layouts that sysprof requests.
*/
#define SP_TYPE_PERF_COUNTER (sp_perf_counter_get_type())
typedef struct _SpPerfCounter SpPerfCounter;