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50108304 MC |
1 | /* |
2 | * Written by Matt Caswell (matt@openssl.org) for the OpenSSL project. | |
3 | */ | |
4 | /* ==================================================================== | |
5 | * Copyright (c) 2015 The OpenSSL Project. All rights reserved. | |
6 | * | |
7 | * Redistribution and use in source and binary forms, with or without | |
8 | * modification, are permitted provided that the following conditions | |
9 | * are met: | |
10 | * | |
11 | * 1. Redistributions of source code must retain the above copyright | |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * | |
14 | * 2. Redistributions in binary form must reproduce the above copyright | |
15 | * notice, this list of conditions and the following disclaimer in | |
16 | * the documentation and/or other materials provided with the | |
17 | * distribution. | |
18 | * | |
19 | * 3. All advertising materials mentioning features or use of this | |
20 | * software must display the following acknowledgment: | |
21 | * "This product includes software developed by the OpenSSL Project | |
22 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
23 | * | |
24 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
25 | * endorse or promote products derived from this software without | |
26 | * prior written permission. For written permission, please contact | |
27 | * licensing@OpenSSL.org. | |
28 | * | |
29 | * 5. Products derived from this software may not be called "OpenSSL" | |
30 | * nor may "OpenSSL" appear in their names without prior written | |
31 | * permission of the OpenSSL Project. | |
32 | * | |
33 | * 6. Redistributions of any form whatsoever must retain the following | |
34 | * acknowledgment: | |
35 | * "This product includes software developed by the OpenSSL Project | |
36 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
37 | * | |
38 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
39 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
40 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
41 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
42 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
43 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
44 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
45 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
46 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
47 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
48 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
49 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
50 | * ==================================================================== | |
51 | */ | |
52 | ||
6e8ac508 | 53 | /* This must be the first #include file */ |
27949c35 | 54 | #include "../async_locl.h" |
50108304 MC |
55 | |
56 | #ifdef ASYNC_WIN | |
57 | ||
58 | # include <windows.h> | |
d63de0eb MC |
59 | # include "internal/cryptlib.h" |
60 | ||
61 | struct winpool { | |
62 | STACK_OF(ASYNC_JOB) *pool; | |
63 | size_t curr_size; | |
64 | size_t max_size; | |
65 | }; | |
50108304 | 66 | |
22a34c2f MC |
67 | static DWORD asyncwinpool = 0; |
68 | static DWORD asyncwinctx = 0; | |
22a34c2f MC |
69 | |
70 | ||
636ca4ff | 71 | void async_start_func(void); |
50108304 | 72 | |
22a34c2f MC |
73 | int async_global_init(void) |
74 | { | |
75 | asyncwinpool = TlsAlloc(); | |
76 | asyncwinctx = TlsAlloc(); | |
7b9f8f7f MC |
77 | if (asyncwinpool == TLS_OUT_OF_INDEXES |
78 | || asyncwinctx == TLS_OUT_OF_INDEXES) { | |
22a34c2f MC |
79 | if (asyncwinpool != TLS_OUT_OF_INDEXES) { |
80 | TlsFree(asyncwinpool); | |
81 | } | |
82 | if (asyncwinctx != TLS_OUT_OF_INDEXES) { | |
83 | TlsFree(asyncwinctx); | |
84 | } | |
22a34c2f MC |
85 | return 0; |
86 | } | |
87 | return 1; | |
88 | } | |
89 | ||
22a34c2f MC |
90 | void async_local_cleanup(void) |
91 | { | |
7b9f8f7f | 92 | async_ctx *ctx = async_arch_get_ctx(); |
22a34c2f MC |
93 | if (ctx != NULL) { |
94 | async_fibre *fibre = &ctx->dispatcher; | |
95 | if(fibre != NULL && fibre->fibre != NULL && fibre->converted) { | |
96 | ConvertFiberToThread(); | |
97 | fibre->fibre = NULL; | |
98 | } | |
99 | } | |
100 | } | |
101 | ||
102 | void async_global_cleanup(void) | |
103 | { | |
104 | TlsFree(asyncwinpool); | |
105 | TlsFree(asyncwinctx); | |
22a34c2f MC |
106 | asyncwinpool = 0; |
107 | asyncwinctx = 0; | |
22a34c2f MC |
108 | } |
109 | ||
636ca4ff | 110 | int async_fibre_init_dispatcher(async_fibre *fibre) |
50108304 | 111 | { |
7b9f8f7f MC |
112 | fibre->fibre = ConvertThreadToFiber(NULL); |
113 | if (fibre->fibre == NULL) { | |
114 | fibre->converted = 0; | |
115 | fibre->fibre = GetCurrentFiber(); | |
116 | if (fibre->fibre == NULL) | |
22a34c2f | 117 | return 0; |
50108304 | 118 | } else { |
7b9f8f7f | 119 | fibre->converted = 1; |
50108304 | 120 | } |
7b9f8f7f | 121 | |
50108304 MC |
122 | return 1; |
123 | } | |
124 | ||
636ca4ff | 125 | VOID CALLBACK async_start_func_win(PVOID unused) |
50108304 | 126 | { |
636ca4ff | 127 | async_start_func(); |
50108304 MC |
128 | } |
129 | ||
27949c35 | 130 | async_pool *async_get_pool(void) |
d63de0eb | 131 | { |
22a34c2f | 132 | return (async_pool *)TlsGetValue(asyncwinpool); |
d63de0eb MC |
133 | } |
134 | ||
135 | ||
27949c35 | 136 | int async_set_pool(async_pool *pool) |
d63de0eb | 137 | { |
22a34c2f MC |
138 | return TlsSetValue(asyncwinpool, (LPVOID)pool) != 0; |
139 | } | |
140 | ||
7b9f8f7f | 141 | async_ctx *async_arch_get_ctx(void) |
22a34c2f MC |
142 | { |
143 | return (async_ctx *)TlsGetValue(asyncwinctx); | |
144 | } | |
145 | ||
146 | int async_set_ctx(async_ctx *ctx) | |
147 | { | |
148 | return TlsSetValue(asyncwinctx, (LPVOID)ctx) != 0; | |
d63de0eb MC |
149 | } |
150 | ||
50108304 | 151 | #endif |