#ifndef _WIN32
#include "CryptoInit.h"

#include <iostream>
#include <stdlib.h>
#include <tbb/spin_mutex.h>

namespace openssl {
#include <openssl/bio.h>
#include <openssl/bn.h>
#include <openssl/pem.h>
#include <openssl/rand.h>
#include <openssl/rsa.h>
} // namespace openssl

namespace bts {
namespace crypto {

static const char rnd_seed[] =
    "string to make the random number generator think it has entropy";
bool CryptoInit::init = false;

tbb::spin_mutex _lock;

void CryptoInit::initialize() {
   if (!init) {
      tbb::spin_mutex::scoped_lock lock(_lock);
      if (!init) {
         openssl::OpenSSL_add_all_algorithms();
         openssl::OpenSSL_add_all_ciphers();
         openssl::OpenSSL_add_all_digests();
         openssl::RAND_seed(rnd_seed, sizeof rnd_seed);
         init = true;
      }
   }
}
void CryptoInit::cleanup() {
   if (init) {
      tbb::spin_mutex::scoped_lock lock(_lock);
      if (init) {
         init = false;
      }
   }
}

} // namespace crypto
} // namespace bts
#endif