| /* |
| * 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 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_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 /* OPENSSL_ASYNC_ARCH_ASYNC_POSIX_H */ |