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1 From 793c2046de1ac04689d541a5e83513fe8e62578c Mon Sep 17 00:00:00 2001
2 From: Marc Fournier <marc.fournier@camptocamp.com>
3 Date: Thu, 16 Jan 2014 00:30:42 +0100
4 Subject: [PATCH 08/22] network: comment libgcrypt initalization process
5
6 ---
7 src/network.c | 9 ++++++++-
8 1 file changed, 8 insertions(+), 1 deletion(-)
9
10 diff --git a/src/network.c b/src/network.c
11 index be82c6f..f379a5c 100644
12 --- a/src/network.c
13 +++ b/src/network.c
14 @@ -500,8 +500,15 @@ static void network_init_gcrypt (void) /* {{{ */
15 if (gcry_control (GCRYCTL_ANY_INITIALIZATION_P))
16 return;
17
18 + /* http://www.gnupg.org/documentation/manuals/gcrypt/Multi_002dThreading.html
19 + * To ensure thread-safety, it's important to set GCRYCTL_SET_THREAD_CBS
20 + * *before* initalizing Libgcrypt with gcry_check_version(), which itself must
21 + * be called before any other gcry_* function. GCRYCTL_ANY_INITIALIZATION_P
22 + * above doesn't count, as it doesn't implicitly initalize Libgcrypt.
23 + *
24 + * tl;dr: keep all these gry_* statements in this exact order please. */
25 gcry_control (GCRYCTL_SET_THREAD_CBS, &gcry_threads_pthread);
26 - gcry_check_version (NULL); /* before calling *almost* any other functions */
27 + gcry_check_version (NULL);
28 gcry_control (GCRYCTL_INIT_SECMEM, 32768);
29 gcry_control (GCRYCTL_INITIALIZATION_FINISHED);
30 } /* }}} void network_init_gcrypt */
31 --
32 1.9.3
33