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Commit 09145d26 authored by Jiri Olsa's avatar Jiri Olsa Committed by Arnaldo Carvalho de Melo
Browse files

libperf: Add perf_cpu_map__for_each_cpu() macro 



Add the following macro to libperf:

  perf_cpu_map__for_each_cpu()

And its related functions:

  perf_cpu_map__cpu()
  perf_cpu_map__nr()

That will allow hiding how it is implemented.

Signed-off-by: default avatarJiri 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/20190721112506.12306-67-jolsa@kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent a00571fd

tools/perf/lib/cpumap.c

+13 −0
Original line number Diff line number Diff line
@@ -224,3 +224,16 @@ struct perf_cpu_map *perf_cpu_map__new(const char *cpu_list) 
out:

	return cpus;

}



int perf_cpu_map__cpu(const struct perf_cpu_map *cpus, int idx)

{

	if (idx < cpus->nr)

		return cpus->map[idx];



	return -1;

}



int perf_cpu_map__nr(const struct perf_cpu_map *cpus)

{

	return cpus ? cpus->nr : 1;

}

tools/perf/lib/include/perf/cpumap.h

+7 −0
Original line number Diff line number Diff line
@@ -12,5 +12,12 @@ LIBPERF_API struct perf_cpu_map *perf_cpu_map__new(const char *cpu_list); 
LIBPERF_API struct perf_cpu_map *perf_cpu_map__read(FILE *file);

LIBPERF_API struct perf_cpu_map *perf_cpu_map__get(struct perf_cpu_map *map);

LIBPERF_API void perf_cpu_map__put(struct perf_cpu_map *map);

LIBPERF_API int perf_cpu_map__cpu(const struct perf_cpu_map *cpus, int idx);

LIBPERF_API int perf_cpu_map__nr(const struct perf_cpu_map *cpus);



#define perf_cpu_map__for_each_cpu(cpu, idx, cpus)		\

	for ((idx) = 0, (cpu) = perf_cpu_map__cpu(cpus, idx);	\

	     (idx) < perf_cpu_map__nr(cpus);			\

	     (idx)++, (cpu) = perf_cpu_map__cpu(cpus, idx))



#endif /* __LIBPERF_CPUMAP_H */

tools/perf/lib/libperf.map

+2 −0
Original line number Diff line number Diff line
@@ -6,6 +6,8 @@ LIBPERF_0.0.1 { 
		perf_cpu_map__put;

		perf_cpu_map__new;

		perf_cpu_map__read;

		perf_cpu_map__nr;

		perf_cpu_map__cpu;

		perf_thread_map__new_dummy;

		perf_thread_map__set_pid;

		perf_thread_map__comm;