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libperf: Adopt perf_mmap__consume() function from tools/perf

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Move perf_mmap__consume() vrom tools/perf to libperf and export it in
the perf/mmap.h header.

Move also the needed helpers perf_mmap__write_tail(),
perf_mmap__read_head() and perf_mmap__empty().

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20191007125344.14268-10-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa
2019-10-07 14:53:17 +02:00
committed by Arnaldo Carvalho de Melo
parent 1d40ae4e17
commit 7728fa0cfa
23 changed files with 87 additions and 54 deletions
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12
tools/perf/util/mmap.h
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@ -45,18 +45,6 @@ struct mmap_params {
int mmap__mmap(struct mmap *map, struct mmap_params *mp, int fd, int cpu);
void mmap__munmap(struct mmap *map);
void perf_mmap__consume(struct mmap *map);
static inline u64 perf_mmap__read_head(struct mmap *mm)
{
return ring_buffer_read_head(mm->core.base);
}
static inline void perf_mmap__write_tail(struct mmap *md, u64 tail)
{
ring_buffer_write_tail(md->core.base, tail);
}
union perf_event *perf_mmap__read_forward(struct mmap *map);
union perf_event *perf_mmap__read_event(struct mmap *map);