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- /*
- * 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,
- * 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.
- * ====================================================================
- */
- #ifndef OPENSSL_ASYNC_ARCH_ASYNC_POSIX_H
- #define OPENSSL_ASYNC_ARCH_ASYNC_POSIX_H
- #include <openssl/e_os2.h>
- #if (defined(OPENSSL_SYS_UNIX) || defined(OPENSSL_SYS_CYGWIN)) && defined(OPENSSL_THREADS)
- # include <unistd.h>
- # if _POSIX_VERSION >= 200112L
- # include <pthread.h>
- # define ASYNC_POSIX
- # define ASYNC_ARCH
- # include <ucontext.h>
- # include <setjmp.h>
- # include "e_os.h"
- extern pthread_key_t posixctx;
- extern pthread_key_t posixpool;
- typedef struct async_fibre_st {
- ucontext_t fibre;
- jmp_buf env;
- int env_init;
- } async_fibre;
- # define async_set_ctx(nctx) (pthread_setspecific(posixctx , (nctx)) == 0)
- # define async_get_ctx() ((async_ctx *)pthread_getspecific(posixctx))
- # define async_set_pool(p) (pthread_setspecific(posixpool , (p)) == 0)
- # define async_get_pool() ((async_pool *)pthread_getspecific(posixpool))
- static inline int async_fibre_swapcontext(async_fibre *o, async_fibre *n, int r)
- {
- o->env_init = 1;
- if (!r || !_setjmp(o->env)) {
- if (n->env_init)
- _longjmp(n->env, 1);
- else
- setcontext(&n->fibre);
- }
- return 1;
- }
- # define async_fibre_init_dispatcher(d)
- int async_fibre_makecontext(async_fibre *fibre);
- void async_fibre_free(async_fibre *fibre);
- # endif
- #endif
- #endif /* OPENSSL_ASYNC_ARCH_ASYNC_POSIX_H */
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