Messages in this thread Patch in this message | | | From | Wang Nan <> | Subject | [RFC PATCH v5 21/30] bpf tools: Introduce accessors for struct bpf_object | Date | Mon, 1 Jun 2015 07:38:07 +0000 |
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This patch add an accessor which allows caller to get count of programs in an object file.
Signed-off-by: Wang Nan <wangnan0@huawei.com> --- tools/lib/bpf/libbpf.c | 9 +++++++++ tools/lib/bpf/libbpf.h | 3 +++ 2 files changed, 12 insertions(+)
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index ed1b1fd..8ff6b05 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -880,6 +880,15 @@ void bpf_object__close(struct bpf_object *obj) free(obj); } +int bpf_object__get_prog_cnt(struct bpf_object *obj, size_t *pcnt) +{ + if (!obj || !pcnt) + return -EINVAL; + + *pcnt = obj->nr_programs; + return 0; +} + struct bpf_program * bpf_program__next(struct bpf_program *prev, struct bpf_object *obj) { diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h index 3f2b734..6b144f9 100644 --- a/tools/lib/bpf/libbpf.h +++ b/tools/lib/bpf/libbpf.h @@ -33,6 +33,9 @@ void bpf_object__close(struct bpf_object *object); int bpf_object__load(struct bpf_object *obj); int bpf_object__unload(struct bpf_object *obj); +/* Accessors of bpf_object */ +int bpf_object__get_prog_cnt(struct bpf_object *obj, size_t *pcnt); + /* Accessors of bpf_program. */ struct bpf_program; struct bpf_program *bpf_program__next(struct bpf_program *prog, -- 1.8.3.4
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