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58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
/*
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* Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#ifndef OSSL_CRYPTO_ASYNC_POSIX_H
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#define OSSL_CRYPTO_ASYNC_POSIX_H
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#include <openssl/e_os2.h>
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#if defined(OPENSSL_SYS_UNIX) \
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&& defined(OPENSSL_THREADS) && !defined(OPENSSL_NO_ASYNC) \
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&& !defined(__ANDROID__) && !defined(__OpenBSD__)
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# include <unistd.h>
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# if _POSIX_VERSION >= 200112L \
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&& (_POSIX_VERSION < 200809L || defined(__GLIBC__))
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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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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 ossl_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 /* OSSL_CRYPTO_ASYNC_POSIX_H */
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