OW_Socket.cpp

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#include "OW_config.h"
#include "OW_Socket.hpp"
#include "OW_UnnamedPipe.hpp"
#include "OW_Assertion.hpp"
#include "OW_MutexLock.hpp"
#include "OW_SSLException.hpp"
#include "OW_Exception.hpp"
#include "OW_IOException.hpp"
#include "OW_ExceptionIds.hpp"
#include "OW_SocketImpl.hpp"
#include "OW_SSLSocketImpl.hpp"


namespace OW_NAMESPACE
{

OW_DEFINE_EXCEPTION_WITH_ID(Socket);
OW_DEFINE_EXCEPTION_WITH_ID(SocketTimeout);

Socket::ShutDownMechanism_t Socket::s_shutDownMechanism = 0;

Socket::Socket()
   : m_impl(new SocketImpl)
{
}
Socket::Socket(const SSLClientCtxRef& sslCtx)
{
   if (sslCtx)
   {
#ifndef OW_NO_SSL
      m_impl = SocketBaseImplRef(new SSLSocketImpl(sslCtx));
#else
      OW_THROW(SSLException, "Not built with SSL");
#endif // #ifndef OW_NO_SSL
   }
   else
   {
      m_impl = SocketBaseImplRef(new SocketImpl);
   }
}

Socket::Socket(SocketFlags::ESSLFlag isSSL)
{
   if (isSSL == SocketFlags::E_SSL)
   {
#ifndef OW_NO_SSL
      m_impl = SocketBaseImplRef(new SSLSocketImpl);
#else
      OW_THROW(SSLException, "Not built with SSL");
#endif // #ifndef OW_NO_SSL
   }
   else
   {
      m_impl = SocketBaseImplRef(new SocketImpl);
   }
}
Socket::Socket(SocketHandle_t fd,
   SocketAddress::AddressType addrType, SocketFlags::ESSLFlag isSSL)
{
   if (isSSL == SocketFlags::E_SSL)
   {
#ifndef OW_NO_SSL
      m_impl = SocketBaseImplRef(new SSLSocketImpl(fd, addrType));
#else
      OW_THROW(SSLException, "Not built with SSL");
#endif // #ifndef OW_NO_SSL
   }
   else
   {
      m_impl = SocketBaseImplRef(new SocketImpl(fd, addrType));
   }
}
// Used by ServerSocket2::accept()
Socket::Socket(SocketHandle_t fd,
   SocketAddress::AddressType addrType, const SSLServerCtxRef& sslCtx)
{
   if (sslCtx)
   {
#ifndef OW_NO_SSL
      m_impl = SocketBaseImplRef(new SSLSocketImpl(fd, addrType, sslCtx));
#else
      OW_THROW(SSLException, "Not built with SSL");
#endif // #ifndef OW_NO_SSL
   }
   else
   {
      m_impl = SocketBaseImplRef(new SocketImpl(fd, addrType));
   }
}
Socket::Socket(const SocketAddress& addr, SocketFlags::ESSLFlag isSSL)
{
   if (isSSL == SocketFlags::E_SSL)
   {
#ifndef OW_NO_SSL
      m_impl = SocketBaseImplRef(new SSLSocketImpl(addr));
#else
      OW_THROW(SSLException, "Not built with SSL");
#endif // #ifndef OW_NO_SSL
   }
   else
   {
      m_impl = SocketBaseImplRef(new SocketImpl(addr));
   }
}
static bool b_gotShutDown = false;
static Mutex shutdownMutex;
// STATIC
void
Socket::shutdownAllSockets()
{
   MutexLock mlock(shutdownMutex);

   OW_ASSERT(s_shutDownMechanism != 0);
   if (!s_shutDownMechanism)
   {
      return;
   }

   b_gotShutDown = true;
#if defined(OW_WIN32)
   ::SetEvent(s_shutDownMechanism);
#else
   if (s_shutDownMechanism->writeString("die!") == -1)
   {
      OW_THROW_ERRNO_MSG(IOException, "Failed writing to socket shutdown pipe");
   }
#endif
}
// STATIC
void
Socket::createShutDownMechanism()
{
   MutexLock mlock(shutdownMutex);
   if (!s_shutDownMechanism)
   {
#if defined(OW_WIN32)
      s_shutDownMechanism = ::CreateEvent(0, TRUE, FALSE, 0);
      OW_ASSERT(s_shutDownMechanism != 0);
#else
      s_shutDownMechanism = UnnamedPipe::createUnnamedPipe();
      s_shutDownMechanism->setBlocking(UnnamedPipe::E_NONBLOCKING);
#endif
      b_gotShutDown = false;
   }
}
// STATIC
void
Socket::deleteShutDownMechanism()
{
   MutexLock mlock(shutdownMutex);
   if (s_shutDownMechanism)
   {
#if defined(OW_WIN32)
      ::CloseHandle(s_shutDownMechanism);
#endif
      s_shutDownMechanism = 0;
   }
}
// STATIC
bool
Socket::gotShutDown()
{
   MutexLock mlock(shutdownMutex);
   return b_gotShutDown;
}
#ifndef OW_NO_SSL
SSL*
Socket::getSSL() const
{
   IntrusiveReference<SSLSocketImpl> sslsock = m_impl.cast_to<SSLSocketImpl>(); 
   if (!sslsock)
   {
      return 0; 
   }
   return sslsock->getSSL(); 
}

bool
Socket::peerCertVerified() const
{
    IntrusiveReference<SSLSocketImpl> sslsock = m_impl.cast_to<SSLSocketImpl>(); 
    if (!sslsock)
    {
            return false; 
    }
    return sslsock->peerCertVerified(); 
}
#endif

} // end namespace OW_NAMESPACE

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