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/*
* Copyright (c) 2010 - 2011 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Portions Copyright (c) 2010 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "config.h"
#include <roken.h>
#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif
#define HEIMDAL_TEXTDOMAIN "heimdal_krb5"
#ifdef LIBINTL
#include <libintl.h>
#define N_(x,y) dgettext(HEIMDAL_TEXTDOMAIN, x)
#else
#define N_(x,y) (x)
#define bindtextdomain(package, localedir)
#endif
#include "heimqueue.h"
#include "heim_threads.h"
#include "heimbase.h"
#include "heimbasepriv.h"
#ifdef HAVE_DISPATCH_DISPATCH_H
#include <dispatch/dispatch.h>
#endif
#if defined(__GNUC__) && defined(HAVE___SYNC_ADD_AND_FETCH)
#define heim_base_atomic_inc(x) __sync_add_and_fetch((x), 1)
#define heim_base_atomic_dec(x) __sync_sub_and_fetch((x), 1)
#define heim_base_atomic_type unsigned int
#define heim_base_atomic_max UINT_MAX
#ifndef __has_builtin
#define __has_builtin(x) 0
#endif
#if __has_builtin(__sync_swap)
#define heim_base_exchange_pointer(t,v) __sync_swap((t), (v))
#else
#define heim_base_exchange_pointer(t,v) __sync_lock_test_and_set((t), (v))
#endif
#elif defined(__sun)
#include <sys/atomic.h>
#define heim_base_atomic_inc(x) atomic_inc_uint_nv((volatile uint_t *)(x))
#define heim_base_atomic_dec(x) atomic_dec_uint_nv((volatile uint_t *)(x))
#define heim_base_atomic_type uint_t
#define heim_base_atomic_max UINT_MAX
#define heim_base_exchange_pointer(t,v) atomic_swap_ptr((volatile void *)(t), (void *)(v))
#elif defined(_AIX)
#include <sys/atomic_op.h>
#define heim_base_atomic_inc(x) (fetch_and_add((atomic_p)(x)) + 1)
#define heim_base_atomic_dec(x) (fetch_and_add((atomic_p)(x)) - 1)
#define heim_base_atomic_type unsigned int
#define heim_base_atomic_max UINT_MAX
static inline void *
heim_base_exchange_pointer(void *p, void *newval)
{
void *val = *(void **)p;
while (!compare_and_swaplp((atomic_l)p, (long *)&val, (long)newval))
;
return val;
}
#elif defined(_WIN32)
#define heim_base_atomic_inc(x) InterlockedIncrement(x)
#define heim_base_atomic_dec(x) InterlockedDecrement(x)
#define heim_base_atomic_type LONG
#define heim_base_atomic_max MAXLONG
#define heim_base_exchange_pointer(t,v) InterlockedExchangePointer((t),(v))
#else
#define HEIM_BASE_NEED_ATOMIC_MUTEX 1
extern HEIMDAL_MUTEX _heim_base_mutex;
#define heim_base_atomic_type unsigned int
static inline heim_base_atomic_type
heim_base_atomic_inc(heim_base_atomic_type *x)
{
heim_base_atomic_type t;
HEIMDAL_MUTEX_lock(&_heim_base_mutex);
t = ++(*x);
HEIMDAL_MUTEX_unlock(&_heim_base_mutex);
return t;
}
static inline heim_base_atomic_type
heim_base_atomic_dec(heim_base_atomic_type *x)
{
heim_base_atomic_type t;
HEIMDAL_MUTEX_lock(&_heim_base_mutex);
t = --(*x);
HEIMDAL_MUTEX_unlock(&_heim_base_mutex);
return t;
}
#define heim_base_atomic_max UINT_MAX
#endif
/* tagged strings/object/XXX */
#define heim_base_is_tagged(x) (((uintptr_t)(x)) & 0x3)
#define heim_base_is_tagged_object(x) ((((uintptr_t)(x)) & 0x3) == 1)
#define heim_base_make_tagged_object(x, tid) \
((heim_object_t)((((uintptr_t)(x)) << 5) | ((tid) << 2) | 0x1))
#define heim_base_tagged_object_tid(x) ((((uintptr_t)(x)) & 0x1f) >> 2)
#define heim_base_tagged_object_value(x) (((uintptr_t)(x)) >> 5)
/*
*
*/
#undef HEIMDAL_NORETURN_ATTRIBUTE
#define HEIMDAL_NORETURN_ATTRIBUTE
#undef HEIMDAL_PRINTF_ATTRIBUTE
#define HEIMDAL_PRINTF_ATTRIBUTE(x)
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