haiku.git

/*
** Copyright 2003, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
** Distributed under the terms of the MIT License.
*/

// ToDo: this is a dummy implementation - I've not yet gained enough knowledge
//	to decide how this should be done, so it's just broken now (okay for single
//	threaded apps, though).

#include "support/TLS.h"
#include "tls.h"


static int32 gNextSlot = TLS_FIRST_FREE_SLOT;
static void *gSlots[TLS_MAX_KEYS];


int32
tls_allocate(void)
{
	int32 next = atomic_add(&gNextSlot, 1);
	if (next >= TLS_MAX_KEYS)
		return B_NO_MEMORY;

	return next;
}


void *
tls_get(int32 index)
{
	return gSlots[index];
}


void **
tls_address(int32 index)
{
	return &gSlots[index];
}


void
tls_set(int32 index, void *value)
{
	gSlots[index] = value;
}