1 /* crypto/async/arch/async_win.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)
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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 #include "async_win.h"
59 # include "internal/cryptlib.h"
62 STACK_OF(ASYNC_JOB) *pool;
67 void async_start_func(void);
69 int async_fibre_init_dispatcher(async_fibre *fibre)
74 (LPVOID) CRYPTO_get_thread_local(CRYPTO_THREAD_LOCAL_ASYNC_DISPATCH);
75 if (dispatcher == NULL) {
76 fibre->fibre = ConvertThreadToFiber(NULL);
77 CRYPTO_set_thread_local(CRYPTO_THREAD_LOCAL_ASYNC_DISPATCH,
78 (void *)fibre->fibre);
80 fibre->fibre = dispatcher;
85 VOID CALLBACK async_start_func_win(PVOID unused)
90 int async_pipe(OSSL_ASYNC_FD *pipefds)
92 if (CreatePipe(&pipefds[0], &pipefds[1], NULL, 256) == 0)
98 int async_write1(OSSL_ASYNC_FD fd, const void *buf)
100 DWORD numwritten = 0;
102 if (WriteFile(fd, buf, 1, &numwritten, NULL) && numwritten == 1)
108 int async_read1(OSSL_ASYNC_FD fd, void *buf)
112 if (ReadFile(fd, buf, 1, &numread, NULL) && numread == 1)
118 STACK_OF(ASYNC_JOB) *async_get_pool(void)
120 struct winpool *pool;
121 pool = (struct winpool *)
122 CRYPTO_get_thread_local(CRYPTO_THREAD_LOCAL_ASYNC_POOL);
127 int async_set_pool(STACK_OF(ASYNC_JOB) *poolin, size_t curr_size,
130 struct winpool *pool;
131 pool = OPENSSL_malloc(sizeof *pool);
136 pool->curr_size = curr_size;
137 pool->max_size = max_size;
138 CRYPTO_set_thread_local(CRYPTO_THREAD_LOCAL_ASYNC_POOL, (void *)pool);
142 void async_increment_pool_size(void)
144 struct winpool *pool;
145 pool = (struct winpool *)
146 CRYPTO_get_thread_local(CRYPTO_THREAD_LOCAL_ASYNC_POOL);
150 void async_release_job_to_pool(ASYNC_JOB *job)
152 struct winpool *pool;
153 pool = (struct winpool *)
154 CRYPTO_get_thread_local(CRYPTO_THREAD_LOCAL_ASYNC_POOL);
155 sk_ASYNC_JOB_push(pool->pool, job);
158 size_t async_pool_max_size(void)
160 struct winpool *pool;
161 pool = (struct winpool *)
162 CRYPTO_get_thread_local(CRYPTO_THREAD_LOCAL_ASYNC_POOL);
163 return pool->max_size;
166 void async_release_pool(void)
168 struct winpool *pool;
169 pool = (struct winpool *)
170 CRYPTO_get_thread_local(CRYPTO_THREAD_LOCAL_ASYNC_POOL);
171 sk_ASYNC_JOB_free(pool->pool);
173 CRYPTO_set_thread_local(CRYPTO_THREAD_LOCAL_ASYNC_POOL, NULL);
176 int async_pool_can_grow(void)
178 struct winpool *pool;
179 pool = (struct winpool *)
180 CRYPTO_get_thread_local(CRYPTO_THREAD_LOCAL_ASYNC_POOL);
181 return (pool->max_size == 0) || (pool->curr_size < pool->max_size);