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author | Martin Kelly <martin.kelly@crowdstrike.com> | 2023-09-25 14:50:42 -0700 |
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committer | Andrii Nakryiko <andrii@kernel.org> | 2023-09-25 16:22:43 -0700 |
commit | ae769390377adaec2798bd1a69171f00d0a25be0 (patch) | |
tree | d871b46e6aecdf6713851c91925f019eb93f90dd /tools/lib/bpf/libbpf.h | |
parent | bb32dd2c8fec71990bbc231aac934e1c73a17341 (diff) | |
download | linux-ae769390377adaec2798bd1a69171f00d0a25be0.tar.gz linux-ae769390377adaec2798bd1a69171f00d0a25be0.tar.bz2 linux-ae769390377adaec2798bd1a69171f00d0a25be0.zip |
libbpf: Add ring__map_fd
Add ring__map_fd to get the file descriptor underlying a given
ringbuffer.
Signed-off-by: Martin Kelly <martin.kelly@crowdstrike.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20230925215045.2375758-12-martin.kelly@crowdstrike.com
Diffstat (limited to 'tools/lib/bpf/libbpf.h')
-rw-r--r-- | tools/lib/bpf/libbpf.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h index 53e2a645c560..114e306c6507 100644 --- a/tools/lib/bpf/libbpf.h +++ b/tools/lib/bpf/libbpf.h @@ -1303,6 +1303,15 @@ LIBBPF_API size_t ring__avail_data_size(const struct ring *r); */ LIBBPF_API size_t ring__size(const struct ring *r); +/** + * @brief **ring__map_fd()** returns the file descriptor underlying the given + * ringbuffer. + * + * @param r A ringbuffer object. + * @return The underlying ringbuffer file descriptor + */ +LIBBPF_API int ring__map_fd(const struct ring *r); + struct user_ring_buffer_opts { size_t sz; /* size of this struct, for forward/backward compatibility */ }; |