/src/openssl/crypto/async/arch/async_posix.c
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved. |
3 | | * |
4 | | * Licensed under the OpenSSL license (the "License"). You may not use |
5 | | * this file except in compliance with the License. You can obtain a copy |
6 | | * in the file LICENSE in the source distribution or at |
7 | | * https://www.openssl.org/source/license.html |
8 | | */ |
9 | | |
10 | | /* This must be the first #include file */ |
11 | | #include "../async_locl.h" |
12 | | |
13 | | #ifdef ASYNC_POSIX |
14 | | |
15 | | # include <stddef.h> |
16 | | # include <unistd.h> |
17 | | |
18 | 0 | #define STACKSIZE 32768 |
19 | | |
20 | | int ASYNC_is_capable(void) |
21 | 0 | { |
22 | 0 | ucontext_t ctx; |
23 | 0 |
|
24 | 0 | /* |
25 | 0 | * Some platforms provide getcontext() but it does not work (notably |
26 | 0 | * MacOSX PPC64). Check for a working getcontext(); |
27 | 0 | */ |
28 | 0 | return getcontext(&ctx) == 0; |
29 | 0 | } |
30 | | |
31 | | void async_local_cleanup(void) |
32 | 0 | { |
33 | 0 | } |
34 | | |
35 | | int async_fibre_makecontext(async_fibre *fibre) |
36 | 0 | { |
37 | 0 | fibre->env_init = 0; |
38 | 0 | if (getcontext(&fibre->fibre) == 0) { |
39 | 0 | fibre->fibre.uc_stack.ss_sp = OPENSSL_malloc(STACKSIZE); |
40 | 0 | if (fibre->fibre.uc_stack.ss_sp != NULL) { |
41 | 0 | fibre->fibre.uc_stack.ss_size = STACKSIZE; |
42 | 0 | fibre->fibre.uc_link = NULL; |
43 | 0 | makecontext(&fibre->fibre, async_start_func, 0); |
44 | 0 | return 1; |
45 | 0 | } |
46 | 0 | } else { |
47 | 0 | fibre->fibre.uc_stack.ss_sp = NULL; |
48 | 0 | } |
49 | 0 | return 0; |
50 | 0 | } |
51 | | |
52 | | void async_fibre_free(async_fibre *fibre) |
53 | 0 | { |
54 | 0 | OPENSSL_free(fibre->fibre.uc_stack.ss_sp); |
55 | 0 | fibre->fibre.uc_stack.ss_sp = NULL; |
56 | 0 | } |
57 | | |
58 | | #endif |