#define _POSIX_C_SOURCE 200809L

#include <stdlib.h>

#include <stdio.h>

#include <stdarg.h>

#include <string.h>

#include <errno.h>

#include <sys/types.h>

#include <sys/wait.h>

#include <unistd.h>

#include "test.h"

#define B(f)

#define T(f) void f();

#include "tests.h"

#undef T

static int failed;

static const char *name;

static int verbose;

static int count;

static int nfailed;

static void errtimer() { error("use *_timer in benchmarks only\n"); }

void start_timer() { errtimer(); }

void stop_timer() { errtimer(); }

void reset_timer() { errtimer(); }

void error__(const char *n, int l, const char *s, ...) {

	va_list ap;

	failed = 1;

	fprintf(stderr, "- ERROR %s at %s:%d: ", name, n, l);

	va_start(ap, s);

	vfprintf(stderr, s, ap);

	va_end(ap);

}

static void run(const char *n, void (*f)()) {

	pid_t pid;

	int s;

	count++;

	failed = 0;

	name = n;

	if (verbose)

		fprintf(stderr, "running %s:\n", name);

	pid = fork();

	if (pid == 0) {

		/* run test in a child process */

		f();

		exit(failed);

	}

	if (pid == -1)

		error("fork failed: %s\n", strerror(errno));

	else {

		if (waitpid(pid, &s, 0) == -1)

			error("waitpid failed: %s\n", strerror(errno));

		else if (!WIFEXITED(s))

			error("abnormal exit: %s\n", WIFSIGNALED(s) ? strsignal(WTERMSIG(s)) : "(unknown)");

		else

			failed = !!WEXITSTATUS(s);

	}

	if (failed) {

		nfailed++;

		fprintf(stderr, "FAILED %s\n", name);

	} else if (verbose)

		fprintf(stderr, "PASSED %s\n", name);

}

static int summary() {

	fprintf(stderr, "PASS:%d FAIL:%d\n", count-nfailed, nfailed);

	return !!nfailed;

}

int main() {

#define T(t) run(#t, t);

#include "tests.h"

	return summary();

}