#include <stdint.h>

#include <stdio.h>

#include <stdarg.h>

#include <unistd.h>

/* TODO: not thread-safe nor fork-safe */

static volatile int t_status;

#define T_LOC2(l) __FILE__ ":" #l

#define T_LOC1(l) T_LOC2(l)

#define t_error(...) t_printf("ERROR " T_LOC1(__LINE__) ": " __VA_ARGS__)

static int t_printf(const char *s, ...)

{

	va_list ap;

	char buf[512];

	int n;

	t_status = 1;

	va_start(ap, s);

	n = vsnprintf(buf, sizeof buf, s, ap);

	va_end(ap);

	if (n < 0)

		n = 0;

	else if (n >= sizeof buf) {

		n = sizeof buf;

		buf[n - 1] = '\n';

		buf[n - 2] = '.';

		buf[n - 3] = '.';

		buf[n - 4] = '.';

	}

	return write(1, buf, n);

}

int t_vmfill(void **, size_t *, int);

void t_fdfill(void);

void t_randseed(uint64_t s);

uint64_t t_randn(uint64_t n);

uint64_t t_randint(uint64_t a, uint64_t b);

void t_shuffle(uint64_t *p, size_t n);

void t_randrange(uint64_t *p, size_t n);

int t_choose(uint64_t n, size_t k, uint64_t *p);

char *t_pathrel(char *buf, size_t n, char *argv0, char *p);