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Safer init_openssl_threads.

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GitOrigin-RevId: ecb7a2dbcf48aae55e611e7f95d0a1f0c4a8413d
This commit is contained in:
levlam 2018-09-02 15:44:19 +03:00
parent 6a2cb7a466
commit a56f70c340
1 changed files with 3 additions and 0 deletions
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3
tdutils/td/utils/crypto.cpp
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@ -32,6 +32,7 @@
#include <algorithm>
#include <cstring>
#include <mutex>
#include <utility>
namespace td {
@ -611,6 +612,8 @@ void openssl_locking_function(int mode, int n, const char *file, int line) {
void init_openssl_threads() {
#if OPENSSL_VERSION_NUMBER < 0x10100000L
static std::mutex init_mutex;
std::lock_guard<std::mutex> lock(init_mutex);
if (CRYPTO_get_locking_callback() == nullptr) {
#if OPENSSL_VERSION_NUMBER >= 0x10000000L
CRYPTO_THREADID_set_callback(openssl_threadid_callback);