#define _GNU_SOURCE
#include <fcntl.h>
#include <stdio.h>
#include <errno.h>
int main() {
	int lasterr = -1;
	unsigned ctr = 0;
	for(;;) {
		errno = 0;
		ssize_t ret = splice(0, 0, 1, 0, 128 * 1024 * 1024, 0);
		if(ret >= 0 || errno != lasterr) {
			fprintf(stderr, "\n\t%m" + (lasterr == -1));
			lasterr = errno;
			ctr = 0;
		}
		if(ret == -1) {
			++ctr;
			fprintf(stderr, "\r%u", ctr);
		} else
			fprintf(stderr, "\r%zu", ret);
		if(!ret)
			break;
	}
	fprintf(stderr, "\n");
}