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#include "cache.h"
#include "diff.h"
#include "diffcore.h"
#include "delta.h"
#include "count-delta.h"
static int diffcore_count_changes_1(void *src, unsigned long src_size,
void *dst, unsigned long dst_size,
unsigned long delta_limit,
unsigned long *src_copied,
unsigned long *literal_added)
{
void *delta;
unsigned long delta_size;
delta = diff_delta(src, src_size,
dst, dst_size,
&delta_size, delta_limit);
if (!delta)
/* If delta_limit is exceeded, we have too much differences */
return -1;
/* Estimate the edit size by interpreting delta. */
if (count_delta(delta, delta_size, src_copied, literal_added)) {
free(delta);
return -1;
}
free(delta);
return 0;
}
int diffcore_count_changes(void *src, unsigned long src_size,
void *dst, unsigned long dst_size,
unsigned long delta_limit,
unsigned long *src_copied,
unsigned long *literal_added)
{
return diffcore_count_changes_1(src, src_size,
dst, dst_size,
delta_limit,
src_copied,
literal_added);
}
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