1 /* crypto/async/arch/async_posix.c */
3 * Written by Matt Caswell (matt@openssl.org) for the OpenSSL project.
5 /* ====================================================================
6 * Copyright (c) 2015 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
54 /* This must be the first #include file */
55 #include "../async_locl.h"
62 pthread_key_t posixctx;
63 pthread_key_t posixpool;
65 #define STACKSIZE 32768
67 int async_global_init(void)
69 if (pthread_key_create(&posixctx, NULL) != 0
70 || pthread_key_create(&posixpool, NULL) != 0)
76 int async_local_init(void)
78 if (!async_set_ctx(NULL) || ! async_set_pool(NULL))
84 void async_local_cleanup(void)
88 void async_global_cleanup(void)
92 int async_fibre_makecontext(async_fibre *fibre)
95 if (getcontext(&fibre->fibre) == 0) {
96 fibre->fibre.uc_stack.ss_sp = OPENSSL_malloc(STACKSIZE);
97 if (fibre->fibre.uc_stack.ss_sp != NULL) {
98 fibre->fibre.uc_stack.ss_size = STACKSIZE;
99 fibre->fibre.uc_link = NULL;
100 makecontext(&fibre->fibre, async_start_func, 0);
104 fibre->fibre.uc_stack.ss_sp = NULL;
109 void async_fibre_free(async_fibre *fibre)
111 OPENSSL_free(fibre->fibre.uc_stack.ss_sp);
112 fibre->fibre.uc_stack.ss_sp = NULL;
115 int async_pipe(OSSL_ASYNC_FD *pipefds)
117 if (pipe(pipefds) == 0)
123 int async_close_fd(OSSL_ASYNC_FD fd)
131 int async_write1(OSSL_ASYNC_FD fd, const void *buf)
133 if (write(fd, buf, 1) > 0)
139 int async_read1(OSSL_ASYNC_FD fd, void *buf)
141 if (read(fd, buf, 1) > 0)