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6e8ac50870
In the async code for MacOS/X define _XOPEN_SOURCE (if not already defined) as early as possible. We must do this before including any header files, because on MacOS/X <stlib.h> includes <signal.h> which includes <ucontext.h>. If we delay defining _XOPEN_SOURCE and include <ucontext.h> after various system headers are included, we are very likely to end up with the wrong (truncated) definition of ucontext_t. Also, better error handling and some code cleanup in POSIX fibre construction and destruction. We make sure that async_fibre_makecontext() always initializes the fibre to a state that can be freed. For all implementations, check for error returns from async_fibre_makecontext(). Reviewed-by: Matt Caswell <matt@openssl.org>
107 lines
3.8 KiB
C
107 lines
3.8 KiB
C
/* crypto/async/async_locl.h */
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/*
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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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/*
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* Must do this before including any header files, because on MacOS/X <stlib.h>
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* includes <signal.h> which includes <ucontext.h>
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*/
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#if defined(__APPLE__) && defined(__MACH__) && !defined(_XOPEN_SOURCE)
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# define _XOPEN_SOURCE /* Otherwise incomplete ucontext_t structure */
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# pragma GCC diagnostic ignored "-Wdeprecated-declarations"
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#endif
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#include <openssl/async.h>
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#include <openssl/crypto.h>
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typedef struct async_ctx_st async_ctx;
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typedef struct async_pool_st async_pool;
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#include "arch/async_win.h"
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#include "arch/async_posix.h"
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#include "arch/async_null.h"
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struct async_ctx_st {
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async_fibre dispatcher;
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ASYNC_JOB *currjob;
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unsigned int blocked;
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};
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struct async_job_st {
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async_fibre fibrectx;
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int (*func) (void *);
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void *funcargs;
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int ret;
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int status;
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int wake_set;
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OSSL_ASYNC_FD wait_fd;
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OSSL_ASYNC_FD wake_fd;
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};
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DECLARE_STACK_OF(ASYNC_JOB)
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struct async_pool_st {
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STACK_OF(ASYNC_JOB) *jobs;
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size_t curr_size;
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size_t max_size;
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};
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int async_global_init(void);
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int async_local_init(void);
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void async_local_cleanup(void);
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void async_global_cleanup(void);
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void async_start_func(void);
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int async_pipe(OSSL_ASYNC_FD *pipefds);
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int async_close_fd(OSSL_ASYNC_FD fd);
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int async_write1(OSSL_ASYNC_FD fd, const void *buf);
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int async_read1(OSSL_ASYNC_FD fd, void *buf);
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