0ff2b9ac0b
Implement the ASYNC_JOB as a local thread pool. Remove the API support for global pools. Reviewed-by: Rich Salz <rsalz@openssl.org>
107 lines
3.7 KiB
C
107 lines
3.7 KiB
C
/* crypto/async/arch/async_posix.h */
|
|
/*
|
|
* 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.
|
|
* ====================================================================
|
|
*/
|
|
#include <openssl/e_os2.h>
|
|
|
|
#ifdef OPENSSL_SYS_UNIX
|
|
|
|
# include <unistd.h>
|
|
|
|
# if _POSIX_VERSION >= 200112L
|
|
|
|
# define ASYNC_SYSV
|
|
# define ASYNC_ARCH
|
|
|
|
# include <ucontext.h>
|
|
# include <setjmp.h>
|
|
# include "e_os.h"
|
|
|
|
extern __thread ASYNC_CTX *sysvctx;
|
|
|
|
typedef struct async_fibre_st {
|
|
ucontext_t fibre;
|
|
jmp_buf env;
|
|
int env_init;
|
|
} ASYNC_FIBRE;
|
|
|
|
# define ASYNC_set_ctx(nctx) (sysvctx = (nctx))
|
|
# define ASYNC_get_ctx() (sysvctx)
|
|
|
|
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_makecontext(c) \
|
|
(ASYNC_FIBRE_init(c) \
|
|
&& !getcontext(&(c)->fibre) \
|
|
&& (makecontext(&(c)->fibre, ASYNC_start_func, 0), 1))
|
|
# define ASYNC_FIBRE_init_dispatcher(d)
|
|
|
|
int ASYNC_FIBRE_init(ASYNC_FIBRE *fibre);
|
|
void ASYNC_FIBRE_free(ASYNC_FIBRE *fibre);
|
|
|
|
int async_pipe(int *pipefds);
|
|
int async_write1(int fd, const void *buf);
|
|
int async_read1(int fd, void *buf);
|
|
|
|
# endif
|
|
#endif
|