Commit-ID: 09145d26b608e886415396e9277ae08f0617d21b Gitweb: https://git.kernel.org/tip/09145d26b608e886415396e9277ae08f0617d21b Author: Jiri Olsa <jo...@kernel.org> AuthorDate: Sun, 21 Jul 2019 13:24:53 +0200 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Mon, 29 Jul 2019 18:34:46 -0300
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: Jiri Olsa <jo...@kernel.org> Cc: Alexander Shishkin <alexander.shish...@linux.intel.com> Cc: Alexey Budankov <alexey.budan...@linux.intel.com> Cc: Andi Kleen <a...@linux.intel.com> Cc: Michael Petlan <mpet...@redhat.com> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Peter Zijlstra <pet...@infradead.org> Link: http://lkml.kernel.org/r/20190721112506.12306-67-jo...@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/lib/cpumap.c | 13 +++++++++++++ tools/perf/lib/include/perf/cpumap.h | 7 +++++++ tools/perf/lib/libperf.map | 2 ++ 3 files changed, 22 insertions(+) diff --git a/tools/perf/lib/cpumap.c b/tools/perf/lib/cpumap.c index a5d4f7ff7174..1ddb69e796e5 100644 --- a/tools/perf/lib/cpumap.c +++ b/tools/perf/lib/cpumap.c @@ -224,3 +224,16 @@ invalid: 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; +} diff --git a/tools/perf/lib/include/perf/cpumap.h b/tools/perf/lib/include/perf/cpumap.h index b4a9283a5dfa..1b6e7db3fa2b 100644 --- a/tools/perf/lib/include/perf/cpumap.h +++ b/tools/perf/lib/include/perf/cpumap.h @@ -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 */ diff --git a/tools/perf/lib/libperf.map b/tools/perf/lib/libperf.map index 5bd491ac1762..d4d34bea0b40 100644 --- a/tools/perf/lib/libperf.map +++ b/tools/perf/lib/libperf.map @@ -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;
