#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <sched.h>
#include <pthread.h>

#include "libgo4.h"

#ifdef _AIX
// On AIX, CSIGSTKSZ is too small to handle Go sighandler.
#define CSIGSTKSZ 0x4000
#else
#define CSIGSTKSZ SIGSTKSZ
#endif

static void die(const char* msg) {
	perror(msg);
	exit(EXIT_FAILURE);
}

static int ok = 1;

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// This file is a self-contained test for a copy of
// the division algorithm in build-goboring.sh,
// to verify that is correct. The real algorithm uses u128
// but this copy uses u32 for easier testing.
// s/32/128/g should be the only difference between the two.
//
// This is the dumbest possible division algorithm,

// done easily in Go, we are just using C for demonstration
// purposes.
void
Step(int x, int y, int *a, int *n)
{
	struct GoStart_return r;

	// Use Go to start 4 goroutines each of which handles 1/4 of the
	// board.
	r = GoStart(0, x, y, 0, x / 2, 0, y / 2, a, n);
	assert(r.r0 == 0 && r.r1 == 100);	// test multiple returns
	r = GoStart(1, x, y, x / 2, x, 0, y / 2, a, n);

// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// It's going to be hard to include a whole real JVM to test this.
// So we'll simulate a really easy JVM using just the parts we need.

// This is the relevant part of jni.h.

// On Android NDK16, jobject is defined like this in C and C++
typedef void* jobject;

typedef jobject jclass;

	// a job control shell and from a shell script.
	setsid();

	if (verbose) {
		printf("calling RunGoroutines\n");
	}

	RunGoroutines();

	// Block SIGIO in this thread to make it more likely that it
	// will be delivered to a goroutine.

	if (verbose) {
		printf("calling pthread_sigmask\n");
	}

	if (sigemptyset(&mask) < 0) {
		die("sigemptyset");
	}
	if (sigaddset(&mask, SIGIO) < 0) {

			// this sleep finishes. We use select rather
			// than sleep because in older versions of
			// glibc the sleep function does some signal
			// fiddling to handle SIGCHLD.  If this
			// program is fiddling signals just when the
			// test program sends the signal, the signal
			// may be delivered to a Go thread which will
			// break this test.
			tv.tv_sec = 60;
			tv.tv_usec = 0;
			select(0, NULL, NULL, NULL, &tv);

			break;
		}

int
returnAfterGrowFromGo(void)
{
	extern int goReturnVal(void);
	return goReturnVal();
}

void
callGoWithString(void)
{
	extern void goWithString(GoString);
	const char *str = "string passed from C to Go";
	goWithString((GoString){str, strlen(str)});

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

#include <stdint.h>
#include <stdio.h>

#include "p.h"
#include "libgo.h"

// Tests libgo.so to export the following functions.
//   int8_t DidInitRun();
//   int8_t DidMainRun();
//   int32_t FromPkg();
//   uint32_t Divu(uint32_t, uint32_t);
int main(void) {
  int8_t ran_init = DidInitRun();
  if (!ran_init) {

#include "libgo6.h"

int main(int argc, char **argv) {
	struct timeval tvstart, tvnow;
	int diff;

	gettimeofday(&tvstart, NULL);

	go_start_profile();

	// Busy wait so we have something to profile.
	// If we just sleep the profiling signal will never fire.
	while (1) {
		gettimeofday(&tvnow, NULL);
		diff = (tvnow.tv_sec - tvstart.tv_sec) * 1000 * 1000 + (tvnow.tv_usec - tvstart.tv_usec);

// done easily in Go, we are just using C for demonstration
// purposes.
void
Step(int x, int y, int *a, int *n)
{
	struct GoStart_return r;

	// Use Go to start 4 goroutines each of which handles 1/4 of the
	// board.
	r = GoStart(0, x, y, 0, x / 2, 0, y / 2, a, n);
	assert(r.r0 == 0 && r.r1 == 100);	// test multiple returns
	r = GoStart(1, x, y, x / 2, x, 0, y / 2, a, n);