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/* Threads compatibility routines for libgcc2 and libobjc.  */

/* Compile this one with gcc.  */

/* Copyright (C) 1999-2015 Free Software Foundation, Inc.

   Contributed by Mumit Khan .

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify it under

the terms of the GNU General Public License as published by the Free

Software Foundation; either version 3, or (at your option) any later

version.

GCC is distributed in the hope that it will be useful, but WITHOUT ANY

WARRANTY; without even the implied warranty of MERCHANTABILITY or

FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

for more details.

Under Section 7 of GPL version 3, you are granted additional

permissions described in the GCC Runtime Library Exception, version

3.1, as published by the Free Software Foundation.

You should have received a copy of the GNU General Public License and

a copy of the GCC Runtime Library Exception along with this program;

see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see

.  */

#ifndef GCC_GTHR_KOS32_H

#define GCC_GTHR_KOS32_H

/* Make sure CONST_CAST2 (origin in system.h) is declared.  */

#ifndef CONST_CAST2

#define CONST_CAST2(TOTYPE,FROMTYPE,X) ((__extension__(union {FROMTYPE _q; TOTYPE _nq;})(X))._nq)

#endif

#define __GTHREADS 1

#include 

#include 

#ifndef __UNUSED_PARAM

#define __UNUSED_PARAM(x) x

#endif

#ifdef __cplusplus

extern "C" {

#endif

typedef unsigned long __gthread_key_t;

typedef struct

{

    int done;

    long started;

} __gthread_once_t;

typedef struct

{

    volatile int lock;

    int handle;

} __gthread_mutex_t;

typedef struct

{

    volatile int lock;

    int handle;

    long depth;

    unsigned long owner;

} __gthread_recursive_mutex_t;

#define __GTHREAD_ONCE_INIT {0, -1}

#define __GTHREAD_MUTEX_INIT_FUNCTION __gthread_mutex_init_function

#define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION \

  __gthread_recursive_mutex_init_function

#if defined (_WIN32) && !defined(__CYGWIN__)

#define MINGW32_SUPPORTS_MT_EH 1

/* Mingw runtime >= v0.3 provides a magic variable that is set to nonzero

   if -mthreads option was specified, or 0 otherwise. This is to get around

   the lack of weak symbols in PE-COFF.  */

extern int _CRT_MT;

extern int __mingwthr_key_dtor (unsigned long, void (*) (void *));

#endif /* _WIN32 && !__CYGWIN__ */

static inline int __gthread_active_p (void)

{

#ifdef MINGW32_SUPPORTS_MT_EH

  return _CRT_MT;

#else

  return 1;

#endif

}

extern int __gthr_kos32_once (__gthread_once_t *, void (*) (void));

extern int __gthr_kos32_key_create (__gthread_key_t *, void (*) (void*));

extern int __gthr_kos32_key_delete (__gthread_key_t);

extern void * __gthr_kos32_getspecific (__gthread_key_t);

extern int __gthr_kos32_setspecific (__gthread_key_t, const void *);

extern void __gthr_kos32_mutex_init_function (__gthread_mutex_t *);

extern int __gthr_kos32_mutex_lock (__gthread_mutex_t *);

extern int __gthr_kos32_mutex_trylock (__gthread_mutex_t *);

extern int __gthr_kos32_mutex_unlock (__gthread_mutex_t *);

extern void __gthr_kos32_recursive_mutex_init_function (__gthread_recursive_mutex_t *);

extern int  __gthr_kos32_recursive_mutex_lock (__gthread_recursive_mutex_t *);

extern int  __gthr_kos32_recursive_mutex_trylock (__gthread_recursive_mutex_t *);

extern int  __gthr_kos32_recursive_mutex_unlock (__gthread_recursive_mutex_t *);

extern void __gthr_kos32_mutex_destroy (__gthread_mutex_t *);

extern int  __gthr_kos32_recursive_mutex_destroy (__gthread_recursive_mutex_t *);

static inline int __gthread_once (__gthread_once_t *__once, void (*__func) (void))

{

    if (__gthread_active_p ())

        return __gthr_kos32_once (__once, __func);

    else

        return -1;

}

static inline int __gthread_key_create (__gthread_key_t *__key, void (*__dtor) (void *))

{

    return __gthr_kos32_key_create (__key, __dtor);

}

static inline int __gthread_key_delete (__gthread_key_t __key)

{

    return __gthr_kos32_key_delete (__key);

}

static inline void* __gthread_getspecific (__gthread_key_t __key)

{

    return __gthr_kos32_getspecific (__key);

}

static inline int __gthread_setspecific (__gthread_key_t __key, const void *__ptr)

{

    return __gthr_kos32_setspecific (__key, __ptr);

}

static inline void __gthread_mutex_init_function (__gthread_mutex_t *__mutex)

{

    __gthr_kos32_mutex_init_function(__mutex);

}

static inline void __gthread_mutex_destroy (__gthread_mutex_t *__mutex)

{

    __gthr_kos32_mutex_destroy (__mutex);

}

static inline int __gthread_mutex_lock (__gthread_mutex_t *__mutex)

{

    if (__gthread_active_p ())

        return __gthr_kos32_mutex_lock (__mutex);

    else

        return 0;

}

static inline int __gthread_mutex_trylock (__gthread_mutex_t *__mutex)

{

    if (__gthread_active_p ())

        return __gthr_kos32_mutex_trylock (__mutex);

    else

        return 0;

}

static inline int __gthread_mutex_unlock (__gthread_mutex_t *__mutex)

{

    if (__gthread_active_p ())

        return __gthr_kos32_mutex_unlock (__mutex);

    else

        return 0;

}

static inline void __gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *__mutex)

{

    __gthr_kos32_recursive_mutex_init_function (__mutex);

}

static inline int __gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *__mutex)

{

    if (__gthread_active_p ())

        return __gthr_kos32_recursive_mutex_lock (__mutex);

    else

        return 0;

}

static inline int __gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *__mutex)

{

    if (__gthread_active_p ())

        return __gthr_kos32_recursive_mutex_trylock (__mutex);

    else

        return 0;

}

static inline int __gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *__mutex)

{

  if (__gthread_active_p ())

        return __gthr_kos32_recursive_mutex_unlock (__mutex);

  else

        return 0;

}

static inline int __gthread_recursive_mutex_destroy (__gthread_recursive_mutex_t *__mutex)

{

    return __gthr_kos32_recursive_mutex_destroy (__mutex);

}

#ifdef __cplusplus

}

#endif

#endif /* ! GCC_GTHR_WIN32_H */