tools/lib/perf/include/internal/xyarray.h

Source file repositories/reference/linux-study-clean/tools/lib/perf/include/internal/xyarray.h

File Facts

System
Linux kernel
Corpus path
tools/lib/perf/include/internal/xyarray.h
Extension
.h
Size
960 bytes
Lines
44
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

struct xyarray {
	size_t row_size;
	size_t entry_size;
	size_t entries;
	size_t max_x;
	size_t max_y;
	char contents[] __aligned(8);
};

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 void *xyarray__entry(struct xyarray *xy, size_t x, size_t y)
{
	if (x >= xy->max_x || y >= xy->max_y)
		return NULL;
	return __xyarray__entry(xy, x, y);
}

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 */

Annotation

Implementation Notes