linux/tools/perf/lib/xyarray.c

34 lines
656 B
C

// SPDX-License-Identifier: GPL-2.0
#include <internal/xyarray.h>
#include <linux/zalloc.h>
#include <stdlib.h>
#include <string.h>
struct xyarray *xyarray__new(int xlen, int ylen, size_t entry_size)
{
size_t row_size = ylen * entry_size;
struct xyarray *xy = zalloc(sizeof(*xy) + xlen * row_size);
if (xy != NULL) {
xy->entry_size = entry_size;
xy->row_size = row_size;
xy->entries = xlen * ylen;
xy->max_x = xlen;
xy->max_y = ylen;
}
return xy;
}
void xyarray__reset(struct xyarray *xy)
{
size_t n = xy->entries * xy->entry_size;
memset(xy->contents, 0, n);
}
void xyarray__delete(struct xyarray *xy)
{
free(xy);
}