mirror of
https://github.com/mii443/libdatachannel.git
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89 lines
1.9 KiB
C++
89 lines
1.9 KiB
C++
/**
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* Copyright (c) 2020 Paul-Louis Ageneau
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "init.hpp"
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#include "certificate.hpp"
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#include "dtlstransport.hpp"
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#include "sctptransport.hpp"
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#ifdef _WIN32
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#include <winsock2.h>
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#endif
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#if USE_GNUTLS
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// Nothing to do
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#else
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#include <openssl/err.h>
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#include <openssl/ssl.h>
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#endif
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using std::shared_ptr;
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namespace rtc {
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std::weak_ptr<Init> Init::Weak;
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init_token Init::Global;
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std::mutex Init::Mutex;
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init_token Init::Token() {
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std::lock_guard lock(Mutex);
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if (!Global) {
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if (auto token = Weak.lock())
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Global = token;
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else
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Global = shared_ptr<Init>(new Init());
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}
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return Global;
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}
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void Init::Cleanup() { Global.reset(); }
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Init::Init() {
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#ifdef _WIN32
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WSADATA wsaData;
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if (WSAStartup(MAKEWORD(2, 2), &wsaData))
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throw std::runtime_error("WSAStartup failed, error=" + std::to_string(WSAGetLastError()));
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#endif
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#if USE_GNUTLS
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// Nothing to do
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#else
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OPENSSL_init_ssl(0, NULL);
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SSL_load_error_strings();
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ERR_load_crypto_strings();
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#endif
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DtlsTransport::Init();
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SctpTransport::Init();
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}
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Init::~Init() {
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CleanupCertificateCache();
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DtlsTransport::Cleanup();
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SctpTransport::Cleanup();
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#ifdef _WIN32
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WSACleanup();
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#endif
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}
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} // namespace rtc
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