mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-24 05:04:00 +08:00
libperf: Add perf_evlist__for_each_evsel() iterator
Add a perf_evlist__for_each_evsel() macro to iterate perf_evsel objects in evlist. Introduce the perf_evlist__next() function to do that without exposing 'struct perf_evlist' internals. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexey Budankov <alexey.budankov@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20190721112506.12306-48-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
parent
63bd5dfa69
commit
651bf38ce1
@ -34,3 +34,23 @@ struct perf_evlist *perf_evlist__new(void)
|
||||
|
||||
return evlist;
|
||||
}
|
||||
|
||||
struct perf_evsel *
|
||||
perf_evlist__next(struct perf_evlist *evlist, struct perf_evsel *prev)
|
||||
{
|
||||
struct perf_evsel *next;
|
||||
|
||||
if (!prev) {
|
||||
next = list_first_entry(&evlist->entries,
|
||||
struct perf_evsel,
|
||||
node);
|
||||
} else {
|
||||
next = list_next_entry(prev, node);
|
||||
}
|
||||
|
||||
/* Empty list is noticed here so don't need checking on entry. */
|
||||
if (&next->node == &evlist->entries)
|
||||
return NULL;
|
||||
|
||||
return next;
|
||||
}
|
||||
|
@ -13,5 +13,12 @@ LIBPERF_API void perf_evlist__add(struct perf_evlist *evlist,
|
||||
LIBPERF_API void perf_evlist__remove(struct perf_evlist *evlist,
|
||||
struct perf_evsel *evsel);
|
||||
LIBPERF_API struct perf_evlist *perf_evlist__new(void);
|
||||
LIBPERF_API struct perf_evsel* perf_evlist__next(struct perf_evlist *evlist,
|
||||
struct perf_evsel *evsel);
|
||||
|
||||
#define perf_evlist__for_each_evsel(evlist, pos) \
|
||||
for ((pos) = perf_evlist__next((evlist), NULL); \
|
||||
(pos) != NULL; \
|
||||
(pos) = perf_evlist__next((evlist), (pos)))
|
||||
|
||||
#endif /* __LIBPERF_EVLIST_H */
|
||||
|
@ -17,6 +17,7 @@ LIBPERF_0.0.1 {
|
||||
perf_evlist__init;
|
||||
perf_evlist__add;
|
||||
perf_evlist__remove;
|
||||
perf_evlist__next;
|
||||
local:
|
||||
*;
|
||||
};
|
||||
|
Loading…
Reference in New Issue
Block a user