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/* * Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved. * * Licensed under the OpenSSL license (the "License"). You may not use * this file except in compliance with the License. You can obtain a copy * in the file LICENSE in the source distribution or at * https://www.openssl.org/source/license.html */ #ifndef OSSL_CRYPTO_ASYNC_POSIX_H #define OSSL_CRYPTO_ASYNC_POSIX_H #include <openssl/e_os2.h> #if defined(OPENSSL_SYS_UNIX) \ && defined(OPENSSL_THREADS) && !defined(OPENSSL_NO_ASYNC) \ && !defined(__ANDROID__) && !defined(__OpenBSD__) # include <unistd.h> # if _POSIX_VERSION >= 200112L \ && (_POSIX_VERSION < 200809L || defined(__GLIBC__)) # include <pthread.h> # define ASYNC_POSIX # define ASYNC_ARCH # include <ucontext.h> # include <setjmp.h> typedef struct async_fibre_st { ucontext_t fibre; jmp_buf env; int env_init; } async_fibre; static ossl_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 /* OSSL_CRYPTO_ASYNC_POSIX_H */