/* A trivial example of wrapping a C library using SWIG.  */

%{
#include <stdio.h>
#include <stdlib.h>
%}

%typemap(gotype) const char * "string"
%typemap(in) const char * %{
	$1 = malloc($input.n + 1);
	memcpy($1, $input.p, $input.n);
	$1[$input.n] = '\0';
%}
%typemap(freearg) const char * %{
	free($1);
%}

FILE *fopen(const char *name, const char *mode);
int fclose(FILE *);

}

const void TFE_MonitoringStringGaugeCellValue(
    TFE_MonitoringStringGaugeCell* cell, TF_Buffer* buf) {
  tensorflow::string value = cell->cell.value();
  void* data = tensorflow::port::Malloc(value.length());
  value.copy(static_cast<char*>(data), value.length(), 0);
  buf->data = data;
  buf->length = value.length();
  buf->data_deallocator = [](void* data, size_t length) {
    tensorflow::port::Free(data);

	profstackdepth           int32

	// debug.malloc is used as a combined debug check
	// in the malloc function and should be set
	// if any of the below debug options is != 0.
	malloc    bool
	inittrace int32
	sbrk      int32
	// traceallocfree controls whether execution traces contain
	// detailed trace data about memory allocation. This value
	// affects debug.malloc only if it is != 0 and the execution

var emptymspan mspan

func allocmcache() *mcache {
	var c *mcache
	systemstack(func() {
		lock(&mheap_.lock)
		c = (*mcache)(mheap_.cachealloc.alloc())
		c.flushGen.Store(mheap_.sweepgen)
		unlock(&mheap_.lock)
	})
	for i := range c.alloc {
		c.alloc[i] = &emptymspan
	}
	c.nextSample = nextSample()
	return c
}

// freemcache releases resources associated with this

// license that can be found in the LICENSE file.

package main

/*
#include <string.h>
#include <stdint.h>
#include <stdlib.h>

void f(int32_t *p, int n) {
  int32_t * volatile q = (int32_t *)malloc(sizeof(int32_t) * n);
  memcpy(p, q, n * sizeof(*p));
  free(q);
}

void g(int32_t *p, int n) {
  if (p[4] != 1) {
    // We shouldn't get here; msan should stop us first.
    exit(0);
  }
}
*/

const char *_cgoPREFIX_Cfunc_CString(struct __go_string s) {
	char *p = malloc(s.__length+1);
	if(p == NULL)
		runtime_throw("runtime: C malloc failed");
	memmove(p, s.__data, s.__length);
	p[s.__length] = 0;
	return p;
}

void *_cgoPREFIX_Cfunc_CBytes(struct __go_open_array b) {
	char *p = malloc(b.__count);
	if(p == NULL)
		runtime_throw("runtime: C malloc failed");
	memmove(p, b.__values, b.__count);
	return p;

# We then walk this MIB and create a flattened sysctl name to OID hash.
#

use strict;

my $debug = 0;
my %ctls = ();

my @headers = qw (
	sys/sysctl.h
	sys/socket.h
	sys/tty.h
	sys/malloc.h
	sys/mount.h
	sys/namei.h
	sys/sem.h
	sys/shm.h
	sys/vmmeter.h
	uvm/uvm_param.h
	uvm/uvm_swap_encrypt.h
	ddb/db_var.h
	net/if.h
	net/if_pfsync.h
	net/pipex.h
	netinet/in.h
	netinet/icmp_var.h

static void *sendthr(void *arg) {
	pthread_t th = *(pthread_t*)arg;
	while (1) {
		int r = pthread_kill(th, SIGWINCH);
		if (r < 0)
			break;
	}
	return 0;
}

static void foo() {
	pthread_t *th = malloc(sizeof(pthread_t));
	pthread_t th2;
	pthread_create(th, 0, thr, 0);
	pthread_create(&th2, 0, sendthr, th);
	pthread_join(*th, 0);
}
*/
import "C"

import (
	"time"
)

//export go_callback

}

static void* spin(void *arg) {
	size_t n;
	struct timeval tvstart, tvnow;
	int diff;
	void *prev;
	void *cur;

	prev = NULL;
	gettimeofday(&tvstart, NULL);
	for (n = 0; n < 1<<20; n++) {
		cur = malloc(n);
		free(prev);
		prev = cur;

		gettimeofday(&tvnow, NULL);
		diff = (tvnow.tv_sec - tvstart.tv_sec) * 1000 * 1000 + (tvnow.tv_usec - tvstart.tv_usec);

		// Profile frequency is 100Hz so we should definitely

}

//go:nosplit
func semacreate(mp *m) {
	if mp.waitsema != 0 {
		return
	}

	var sem *semt

	// Call libc's malloc rather than malloc. This will
	// allocate space on the C heap. We can't call mallocgc
	// here because it could cause a deadlock.
	sem = (*semt)(malloc(unsafe.Sizeof(*sem)))
	if sem_init(sem, 0, 0) != 0 {
		throw("sem_init")
	}
	mp.waitsema = uintptr(unsafe.Pointer(sem))
}

//go:nosplit