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author | Jiri Olsa <jolsa@kernel.org> | 2019-07-21 13:24:44 +0200 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-07-29 18:34:45 -0300 |
commit | 4b247fa7314ce48282f3da400a9ffb7f3fd3f863 (patch) | |
tree | 24382bbdf28160daa8e2278e709d7432e78b50c9 /tools/perf/lib/include/internal/xyarray.h | |
parent | libperf: Add perf_evlist__set_maps() function (diff) | |
download | linux-dev-4b247fa7314ce48282f3da400a9ffb7f3fd3f863.tar.xz linux-dev-4b247fa7314ce48282f3da400a9ffb7f3fd3f863.zip |
libperf: Adopt xyarray class from perf
Move the xyarray class from perf to libperf, because it's going to be
used in both.
Signed-off-by: Jiri 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/20190721112506.12306-58-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/lib/include/internal/xyarray.h')
-rw-r--r-- | tools/perf/lib/include/internal/xyarray.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/tools/perf/lib/include/internal/xyarray.h b/tools/perf/lib/include/internal/xyarray.h new file mode 100644 index 000000000000..3bf70e4d474c --- /dev/null +++ b/tools/perf/lib/include/internal/xyarray.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __LIBPERF_INTERNAL_XYARRAY_H +#define __LIBPERF_INTERNAL_XYARRAY_H + +#include <sys/types.h> + +struct xyarray { + size_t row_size; + size_t entry_size; + size_t entries; + size_t max_x; + size_t max_y; + char contents[]; +}; + +struct xyarray *xyarray__new(int xlen, int ylen, size_t entry_size); +void xyarray__delete(struct xyarray *xy); +void xyarray__reset(struct xyarray *xy); + +static inline void *xyarray__entry(struct xyarray *xy, int x, int y) +{ + return &xy->contents[x * xy->row_size + y * xy->entry_size]; +} + +static inline int xyarray__max_y(struct xyarray *xy) +{ + return xy->max_y; +} + +static inline int xyarray__max_x(struct xyarray *xy) +{ + return xy->max_x; +} + +#endif /* __LIBPERF_INTERNAL_XYARRAY_H */ |