Convert __thread to pthreads for Thread Local Storage

[thirdparty/openssl.git] / crypto / async / arch / async_win.h

/* crypto/async/arch/async_win.h */
/*
 * Written by Matt Caswell (matt@openssl.org) for the OpenSSL project.
 */
/* ====================================================================
 * Copyright (c) 2015 The OpenSSL Project.  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. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    licensing@OpenSSL.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED 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 OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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 * ====================================================================
 */

#include <openssl/async.h>

/*
 * This is the same detection used in cryptlib to set up the thread local
 * storage that we depend on, so just copy that
 */
#if defined(_WIN32) || defined(__CYGWIN__)
# define ASYNC_WIN
# define ASYNC_ARCH

# include <windows.h>
# include "internal/cryptlib.h"

typedef struct async_fibre_st {
    LPVOID fibre;
} async_fibre;

# define async_set_ctx(nctx) \
        (CRYPTO_set_thread_local(CRYPTO_THREAD_LOCAL_ASYNC_CTX, (void *)(nctx)))
# define async_get_ctx() \
        ((async_ctx *)CRYPTO_get_thread_local(CRYPTO_THREAD_LOCAL_ASYNC_CTX))
# define async_fibre_swapcontext(o,n,r) \
        (SwitchToFiber((n)->fibre), 1)
# define async_fibre_makecontext(c) \
        ((c)->fibre = CreateFiber(0, async_start_func_win, 0))
# define async_fibre_free(f)             (DeleteFiber((f)->fibre))

int async_fibre_init_dispatcher(async_fibre *fibre);
VOID CALLBACK async_start_func_win(PVOID unused);

async_pool *async_get_pool(void);
int async_set_pool(async_pool *pool);

#endif