Function locking_function

src/openssl.cpp:222–229

Callback needed to perform locking on shared data structures. From the OpenSSL documentation: OpenSSL uses a number of global data structures that will be implicitly shared whenever multiple threads use OpenSSL. Multi-threaded applications will crash at random if [the locking function] is not set.

// Multi-threaded applications will crash at random if [the locking
// function] is not set.
void locking_function(int mode, int n, const char* /*file*/, int /*line*/)
{
  if (mode & CRYPTO_LOCK) {
    mutexes[n].lock();
  } else {
    mutexes[n].unlock();
  }
}


// OpenSSL callback that returns the current thread ID, necessary for