224905f8aa
The async code uses thread local variables. We should convert to using the new Thread API for doing this. Reviewed-by: Rich Salz <rsalz@openssl.org>
98 lines
3.4 KiB
C
98 lines
3.4 KiB
C
/*
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* Written by Matt Caswell (matt@openssl.org) for the OpenSSL project.
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*/
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/* ====================================================================
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* Copyright (c) 2015 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*/
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#ifndef OPENSSL_ASYNC_ARCH_ASYNC_POSIX_H
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#define OPENSSL_ASYNC_ARCH_ASYNC_POSIX_H
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#include <openssl/e_os2.h>
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#if (defined(OPENSSL_SYS_UNIX) || defined(OPENSSL_SYS_CYGWIN)) && defined(OPENSSL_THREADS) && !defined(OPENSSL_NO_ASYNC)
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# include <unistd.h>
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# if _POSIX_VERSION >= 200112L
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# include <pthread.h>
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# define ASYNC_POSIX
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# define ASYNC_ARCH
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# include <ucontext.h>
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# include <setjmp.h>
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# include "e_os.h"
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typedef struct async_fibre_st {
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ucontext_t fibre;
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jmp_buf env;
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int env_init;
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} async_fibre;
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static inline int async_fibre_swapcontext(async_fibre *o, async_fibre *n, int r)
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{
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o->env_init = 1;
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if (!r || !_setjmp(o->env)) {
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if (n->env_init)
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_longjmp(n->env, 1);
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else
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setcontext(&n->fibre);
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}
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return 1;
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}
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# define async_fibre_init_dispatcher(d)
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int async_fibre_makecontext(async_fibre *fibre);
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void async_fibre_free(async_fibre *fibre);
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# endif
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#endif
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#endif /* OPENSSL_ASYNC_ARCH_ASYNC_POSIX_H */
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