TAO_DIOP_Acceptor Class Reference

TAO_DIOP_Acceptor. More...

#include <DIOP_Acceptor.h>

Inheritance diagram for TAO_DIOP_Acceptor:

[legend]Collaboration diagram for TAO_DIOP_Acceptor:

[legend]List of all members.

Public Member Functions
	TAO_DIOP_Acceptor (void)
	Constructor.
	~TAO_DIOP_Acceptor (void)
	Destructor.
const ACE_INET_Addr &	address (void) const
const ACE_INET_Addr *	endpoints (void)
	Returns the array of endpoints in this acceptor.
const ACE_INET_Addr &	default_address (void) const
	Returns address for default endpoint.
void	set_default_address (const ACE_INET_Addr &addr)
	Set address for default endpoint.
virtual int	hostname (TAO_ORB_Core *orb_core, ACE_INET_Addr &addr, char *&host, const char *specified_hostname=0)
int	dotted_decimal_address (ACE_INET_Addr &addr, char *&host)
The TAO_Acceptor Methods
Please check the documentation in Transport_Acceptor.h for details.
virtual int	open (TAO_ORB_Core *orb_core, ACE_Reactor *reactor, int version_major, int version_minor, const char *address, const char *options=0)
virtual int	open_default (TAO_ORB_Core *orb_core, ACE_Reactor *reactor, int version_major, int version_minor, const char *options=0)
virtual int	close (void)
virtual int	create_profile (const TAO::ObjectKey &object_key, TAO_MProfile &mprofile, CORBA::Short priority)
virtual int	is_collocated (const TAO_Endpoint *endpoint)
virtual CORBA::ULong	endpoint_count (void)
virtual int	object_key (IOP::TaggedProfile &profile, TAO::ObjectKey &key)
Protected Member Functions
int	parse_address (const char *address, ACE_INET_Addr &addr, ACE_CString &specified_hostname, int *def_type=0)
virtual int	open_i (const ACE_INET_Addr &addr, ACE_Reactor *reactor)
int	probe_interfaces (TAO_ORB_Core *orb_core, int def_type=AF_UNSPEC)
virtual int	parse_options (const char *options)
	Parse protocol specific options.
int	create_new_profile (const TAO::ObjectKey &object_key, TAO_MProfile &mprofile, CORBA::Short priority)
int	create_shared_profile (const TAO::ObjectKey &object_key, TAO_MProfile &mprofile, CORBA::Short priority)
Protected Attributes
ACE_INET_Addr *	addrs_
char **	hosts_
CORBA::ULong	endpoint_count_
TAO_GIOP_Message_Version	version_
TAO_ORB_Core *	orb_core_
	ORB Core.
ACE_INET_Addr	default_address_
	Address for default endpoint.
Private Attributes
TAO_DIOP_Connection_Handler *	connection_handler_

---

Detailed Description

TAO_DIOP_Acceptor.

The DIOP-specific bridge class for the concrete acceptor.

Definition at line 46 of file DIOP_Acceptor.h.

---

Constructor & Destructor Documentation

TAO_BEGIN_VERSIONED_NAMESPACE_DECL TAO_DIOP_Acceptor::TAO_DIOP_Acceptor

(

void

)

Constructor.

Definition at line 31 of file DIOP_Acceptor.cpp.

  : TAO_Acceptor (TAO_TAG_DIOP_PROFILE),
    addrs_ (0),
    hosts_ (0),
    endpoint_count_ (0),
    version_ (TAO_DEF_GIOP_MAJOR, TAO_DEF_GIOP_MINOR),
    orb_core_ (0),
#if defined (ACE_HAS_IPV6)
    default_address_ (static_cast<unsigned short> (0), ACE_IPV6_ANY, AF_INET6),
#else
    default_address_ (static_cast<unsigned short> (0), static_cast<ACE_UINT32> (INADDR_ANY)),
#endif /* ACE_HAS_IPV6 */
    connection_handler_ (0)
{
}

TAO_DIOP_Acceptor::~TAO_DIOP_Acceptor

(

void

)

Destructor.

Definition at line 47 of file DIOP_Acceptor.cpp.

References close(), and CORBA::string_free().

{
  // Make sure we are closed before we start destroying the
  // strategies.
  this->close ();

  delete [] this->addrs_;

  for (CORBA::ULong i = 0; i < this->endpoint_count_; ++i)
    CORBA::string_free (this->hosts_[i]);

  delete [] this->hosts_;
}

---

Member Function Documentation

TAO_BEGIN_VERSIONED_NAMESPACE_DECL ACE_INLINE const ACE_INET_Addr & TAO_DIOP_Acceptor::address

(

void

)

const

@ Helper method for the implementation repository, should go away

Definition at line 8 of file DIOP_Acceptor.inl.

References ACE_ASSERT, and addrs_.

Referenced by open_i().

{
  ACE_ASSERT (this->addrs_ != 0);

  // @@ This is busted.
  //    The Implementation Repository will have to start supporting
  //    IORs with multiple profiles.  For now, we just return the
  //    first addr.
  //                    -Ossama
  return this->addrs_[0];
}

int TAO_DIOP_Acceptor::close

(

void

)

[virtual]

Implements TAO_Acceptor.

Definition at line 240 of file DIOP_Acceptor.cpp.

Referenced by ~TAO_DIOP_Acceptor().

{
  return 0;
}

int TAO_DIOP_Acceptor::create_new_profile	(	const TAO::ObjectKey &	object_key,
		TAO_MProfile &	mprofile,
		CORBA::Short	priority
	)			[protected]

Helper method to add a new profile to the mprofile for each endpoint.

Definition at line 83 of file DIOP_Acceptor.cpp.

References TAO_Profile::_decr_refcnt(), ACE_NEW_RETURN, TAO_DIOP_Profile::endpoint(), TAO_MProfile::give_profile(), TAO_MProfile::grow(), TAO_Endpoint::priority(), TAO_MProfile::profile_count(), TAO_Codeset_Manager::set_codeset(), TAO_Tagged_Components::set_orb_type(), TAO_MProfile::size(), ACE_OS::strcmp(), TAO_Profile::tagged_components(), TAO_ORB_TYPE, and version_.

{
  // Adding this->endpoint_count_ to the TAO_MProfile.
  int count = mprofile.profile_count ();
  if ((mprofile.size () - count) < this->endpoint_count_
      && mprofile.grow (count + this->endpoint_count_) == -1)
    return -1;

  // Create a profile for each acceptor endpoint.
  for (CORBA::ULong i = 0; i < this->endpoint_count_; ++i)
    {
      // Skip if the host name
      if (i > 0
          && (this->addrs_[i].get_port_number () == this->addrs_[0].get_port_number ())
          && ACE_OS::strcmp (this->hosts_[i], this->hosts_[0]) == 0)
        continue;

      TAO_DIOP_Profile *pfile = 0;
      ACE_NEW_RETURN (pfile,
                      TAO_DIOP_Profile (this->hosts_[i],
                                        this->addrs_[i].get_port_number (),
                                        object_key,
                                        this->addrs_[i],
                                        this->version_,
                                        this->orb_core_),
                      -1);
      pfile->endpoint ()->priority (priority);

      if (mprofile.give_profile (pfile) == -1)
        {
          pfile->_decr_refcnt ();
          pfile = 0;
          return -1;
        }

      // Do not add any tagged components to the profile if configured
      // by the user not to do so, or if an IIOP 1.0 endpoint is being
      // created (IIOP 1.0 did not support tagged components).
      if (this->orb_core_->orb_params ()->std_profile_components () == 0
          || (this->version_.major == 1 && this->version_.minor == 0))
        continue;

      pfile->tagged_components ().set_orb_type (TAO_ORB_TYPE);

      TAO_Codeset_Manager *csm = this->orb_core_->codeset_manager ();
      if (csm)
        csm->set_codeset (pfile->tagged_components ());
    }

  return 0;
}

int TAO_DIOP_Acceptor::create_profile	(	const TAO::ObjectKey &	object_key,
		TAO_MProfile &	mprofile,
		CORBA::Short	priority
	)			[virtual]

Implements TAO_Acceptor.

Definition at line 65 of file DIOP_Acceptor.cpp.

References create_shared_profile(), and TAO_INVALID_PRIORITY.

{
  // Sanity check.
  if (this->endpoint_count_ == 0)
    return -1;

  // Check if multiple endpoints should be put in one profile or if
  // they should be spread across multiple profiles.
  if (priority == TAO_INVALID_PRIORITY &&
      this->orb_core_->orb_params ()->shared_profile () == 0)
    return this->create_new_profile (object_key, mprofile, priority);
  else
    return this->create_shared_profile (object_key, mprofile, priority);
}

int TAO_DIOP_Acceptor::create_shared_profile	(	const TAO::ObjectKey &	object_key,
		TAO_MProfile &	mprofile,
		CORBA::Short	priority
	)			[protected]

Helper method to create a profile that contains all of our endpoints.

Definition at line 138 of file DIOP_Acceptor.cpp.

References TAO_Profile::_decr_refcnt(), ACE_NEW_RETURN, TAO_DIOP_Profile::add_endpoint(), TAO_DIOP_Profile::endpoint(), TAO_MProfile::get_profile(), TAO_MProfile::give_profile(), TAO_Endpoint::priority(), TAO_MProfile::profile_count(), TAO_Codeset_Manager::set_codeset(), TAO_Tagged_Components::set_orb_type(), ACE_OS::strcmp(), TAO_Profile::tag(), TAO_Profile::tagged_components(), TAO_ORB_TYPE, and version_.

Referenced by create_profile().

{
  CORBA::ULong index = 0;
  TAO_Profile *pfile = 0;
  TAO_DIOP_Profile *diop_profile = 0;

  // First see if <mprofile> already contains a DIOP profile.
  for (TAO_PHandle i = 0; i != mprofile.profile_count (); ++i)
    {
      pfile = mprofile.get_profile (i);
      if (pfile->tag () == TAO_TAG_DIOP_PROFILE)
      {
        diop_profile = dynamic_cast<TAO_DIOP_Profile *> (pfile);
        break;
      }
    }

  // If <mprofile> doesn't contain a DIOP_Profile, we need to create
  // one.
  if (diop_profile == 0)
    {
      ACE_NEW_RETURN (diop_profile,
                      TAO_DIOP_Profile (this->hosts_[0],
                                        this->addrs_[0].get_port_number (),
                                        object_key,
                                        this->addrs_[0],
                                        this->version_,
                                        this->orb_core_),
                      -1);
      diop_profile->endpoint ()->priority (priority);

      if (mprofile.give_profile (diop_profile) == -1)
        {
          diop_profile->_decr_refcnt ();
          diop_profile = 0;
          return -1;
        }

      if (this->orb_core_->orb_params ()->std_profile_components () != 0
          && (this->version_.major >= 1 && this->version_.minor >= 1))
        {
          diop_profile->tagged_components ().set_orb_type (TAO_ORB_TYPE);
          TAO_Codeset_Manager *csm = this->orb_core_->codeset_manager ();
          if (csm)
            csm->set_codeset (pfile->tagged_components ());
        }

      index = 1;
    }

  // Add any remaining acceptor endpoints to the DIOP_Profile.
  for (;
       index < this->endpoint_count_;
       ++index)
    {
      if (index > 0 &&
          this->addrs_[index].get_port_number () == this->addrs_[0].get_port_number () &&
          ACE_OS::strcmp (this->hosts_[index], this->hosts_[0]) == 0)
        continue;

      TAO_DIOP_Endpoint *endpoint = 0;
      ACE_NEW_RETURN (endpoint,
                      TAO_DIOP_Endpoint (this->hosts_[index],
                                         this->addrs_[index].get_port_number (),
                                         this->addrs_[index]),
                      -1);
      endpoint->priority (priority);
      diop_profile->add_endpoint (endpoint);
    }

  return 0;
}

ACE_INLINE const ACE_INET_Addr & TAO_DIOP_Acceptor::default_address

(

void

)

const

Returns address for default endpoint.

Definition at line 29 of file DIOP_Acceptor.inl.

References default_address_.

{
  return this->default_address_;
}

int TAO_DIOP_Acceptor::dotted_decimal_address	(	ACE_INET_Addr &	addr,
		char *&	host
	)

Set the host name for the given address using the dotted decimal format.

Definition at line 652 of file DIOP_Acceptor.cpp.

References ACE_DEBUG, ACE_TEXT, ACE_INET_Addr::get_host_addr(), ACE_INET_Addr::get_host_name(), ACE_INET_Addr::get_port_number(), ACE_Addr::get_type(), ACE_INET_Addr::is_any(), LM_DEBUG, CORBA::string_dup(), and TAO_debug_level.

{
  int result = 0;
  const char *tmp = 0;

  // If the IP address in the INET_Addr is the IN(6)ADDR_ANY address,
  // then force the actual IP address to be used by initializing a new
  // INET_Addr with the hostname from the original one.  If that fails
  // then something is seriously wrong with the systems networking
  // setup.
  if (addr.is_any ())
    {
      ACE_INET_Addr new_addr;
#if defined (ACE_HAS_IPV6)
      result = new_addr.set (addr.get_port_number (),
                             addr.get_host_name (),
                             1, /* encode */
                             addr.get_type ());
#else /* ACE_HAS_IPV6 */
      result = new_addr.set (addr.get_port_number (),
                             addr.get_host_name ());
#endif /* !ACE_HAS_IPV6 */
      tmp = new_addr.get_host_addr ();
    }
  else
    tmp = addr.get_host_addr ();

  if (tmp == 0 || result != 0)
    {
      if (TAO_debug_level > 0)
        ACE_DEBUG ((LM_DEBUG,
                    ACE_TEXT ("TAO (%P|%t) - ")
                    ACE_TEXT ("DIOP_Acceptor::dotted_decimal_address, ")
                    ACE_TEXT ("%p\n\n"),
                    ACE_TEXT ("cannot determine hostname")));
      return -1;
    }

  host = CORBA::string_dup (tmp);
  return 0;
}

CORBA::ULong TAO_DIOP_Acceptor::endpoint_count

(

void

)

[virtual]

Implements TAO_Acceptor.

Definition at line 905 of file DIOP_Acceptor.cpp.

{
  return this->endpoint_count_;
}

ACE_INLINE const ACE_INET_Addr * TAO_DIOP_Acceptor::endpoints

(

void

)

Returns the array of endpoints in this acceptor.

Definition at line 21 of file DIOP_Acceptor.inl.

References ACE_ASSERT, and addrs_.

{
  ACE_ASSERT (this->addrs_ != 0);

  return this->addrs_;
}

int TAO_DIOP_Acceptor::hostname	(	TAO_ORB_Core *	orb_core,
		ACE_INET_Addr &	addr,
		char *&	host,
		const char *	specified_hostname = 0
	)			[virtual]

Set the host name for the given addr. A hostname may be forced by using specified_hostname. This is useful if the given address corresponds to more than one hostname and the desired one cannot be determined in any other way.

Definition at line 469 of file DIOP_Acceptor.cpp.

References ACE_INET_Addr::get_host_name(), MAXHOSTNAMELEN, TAO_ORB_Core::orb_params(), CORBA::string_dup(), and TAO_ORB_Parameters::use_dotted_decimal_addresses().

{
  if (orb_core->orb_params ()->use_dotted_decimal_addresses ())
    {
      // If dotted decimal addresses are enabled,
      // just return ours.
      return this->dotted_decimal_address (addr, host);
    }
  else if (specified_hostname != 0)
    {
      // If the user specified a hostname, pass it back
      // blindly as it overrides our choice of hostname.
      host = CORBA::string_dup (specified_hostname);
    }
  else
    {
      char tmp_host[MAXHOSTNAMELEN + 1];

      // Get the hostname associated with our address
#if defined (ACE_HAS_IPV6)
      // If we have a IPv4-compatible IPv6 address don't do hostname lookup
      // because that gets us into trouble. Most likely we get the same hostname
      // returned as for the actual IPv4 address but resolving that into an IPv6
      // address at the client will fail.
      if (addr.is_ipv4_compat_ipv6 () ||
          addr.get_host_name (tmp_host, sizeof (tmp_host)) != 0)
#else /* ACE_HAS_IPV6 */
      if (addr.get_host_name (tmp_host, sizeof (tmp_host)) != 0)
#endif /* !ACE_HAS_IPV6 */
        {
          // On failure, just return the decimal address.
          return this->dotted_decimal_address (addr, host);
        }
      else
        {
          host = CORBA::string_dup (tmp_host);
        }
    }

  return 0;
}

int TAO_DIOP_Acceptor::is_collocated

(

const TAO_Endpoint *

endpoint

)

[virtual]

Implements TAO_Acceptor.

Definition at line 214 of file DIOP_Acceptor.cpp.

References TAO_DIOP_Endpoint::host(), TAO_DIOP_Endpoint::port(), and ACE_OS::strcmp().

{
  const TAO_DIOP_Endpoint *endp =
    dynamic_cast<const TAO_DIOP_Endpoint *> (endpoint);

  // Make sure the dynamically cast pointer is valid.
  if (endp == 0)
    return 0;

  for (CORBA::ULong i = 0; i < this->endpoint_count_; ++i)
    {
      // compare the port and host name.  Please do *NOT* optimize
      // this code by comparing the IP address instead.  That would
      // trigger the following bug:
      //
      // http://deuce.doc.wustl.edu/bugzilla/show_bug.cgi?id=1220
      //
      if (endp->port () == this->addrs_[i].get_port_number ()
          && ACE_OS::strcmp (endp->host (), this->hosts_[i]) == 0)
        return 1;  // Collocated
    }

  return 0;  // Not collocated
}

int TAO_DIOP_Acceptor::object_key	(	IOP::TaggedProfile &	profile,
		TAO::ObjectKey &	key
	)			[virtual]

Implements TAO_Acceptor.

Definition at line 911 of file DIOP_Acceptor.cpp.

References ACE_DEBUG, ACE_TEXT, LM_DEBUG, and TAO_debug_level.

{
  // Create the decoding stream from the encapsulation in the buffer,
#if (TAO_NO_COPY_OCTET_SEQUENCES == 1)
  TAO_InputCDR cdr (profile.profile_data.mb ());
#else
  TAO_InputCDR cdr (reinterpret_cast<char*> (profile.profile_data.get_buffer ()),
                    profile.profile_data.length ());
#endif /* TAO_NO_COPY_OCTET_SEQUENCES == 1 */

  CORBA::Octet major;
  CORBA::Octet minor = CORBA::Octet();

  // Read the version. We just read it here. We don't*do any*
  // processing.
  if (!(cdr.read_octet (major)
        && cdr.read_octet (minor)))
  {
    if (TAO_debug_level > 0)
      {
        ACE_DEBUG ((LM_DEBUG,
                    ACE_TEXT ("TAO (%P|%t) - DIOP_Profile::object_key, v%d.%d\n"),
                    major,
                    minor));
      }
    return -1;
  }

  CORBA::String_var host;
  CORBA::UShort port = 0;

  // Get host and port. No processing here too..
  if (cdr.read_string (host.out ()) == 0
      || cdr.read_ushort (port) == 0)
    {
      if (TAO_debug_level > 0)
        {
          ACE_DEBUG ((LM_DEBUG,
                      ACE_TEXT ("TAO (%P|%t) - DIOP_Acceptor::object_key, ")
                      ACE_TEXT ("error while decoding host/port")));
        }
      return -1;
    }

  // ... and object key.
  if ((cdr >> object_key) == 0)
    return -1;

  // We are NOT bothered about the rest.

  return 1;
}

int TAO_DIOP_Acceptor::open	(	TAO_ORB_Core *	orb_core,
		ACE_Reactor *	reactor,
		int	version_major,
		int	version_minor,
		const char *	address,
		const char *	options = 0
	)			[virtual]

Implements TAO_Acceptor.

Definition at line 246 of file DIOP_Acceptor.cpp.

References ACE_DEBUG, ACE_ERROR_RETURN, ACE_NEW_RETURN, ACE_TEXT, AF_UNSPEC, ACE_String_Base< CHAR >::c_str(), ACE_INET_Addr::get_port_number(), ACE_Addr::get_type(), ACE_String_Base< CHAR >::length(), LM_DEBUG, LM_ERROR, open_i(), ACE_INET_Addr::set(), TAO_GIOP_Message_Version::set_version(), TAO_debug_level, and version_.

{
  this->orb_core_ = orb_core;

  if (this->hosts_ != 0)
    {
      // The hostname cache has already been set!
      // This is bad mojo, i.e. an internal TAO error.
      ACE_ERROR_RETURN ((LM_ERROR,
                         ACE_TEXT ("TAO (%P|%t) - ")
                         ACE_TEXT ("DIOP_Acceptor::open, ")
                         ACE_TEXT ("hostname already set\n\n")),
                        -1);
    }

  if (address == 0)
    return -1;

  if (major >=0 && minor >= 0)
    this->version_.set_version (static_cast<CORBA::Octet> (major),
                                static_cast<CORBA::Octet> (minor));
  // Parse options
  if (this->parse_options (options) == -1)
    return -1;

  ACE_CString specified_hostname;
  ACE_INET_Addr addr;
  int def_type = AF_UNSPEC;

  if (this->parse_address (address,
                           addr,
                           specified_hostname,
                           &def_type) == -1)
    return -1;

  if (specified_hostname.length () == 0)
    {
      // The address is a port number or port name.  No hostname was
      // specified.  The hostname for each network interface and the
      // fully qualified domain name must be obtained.

      // Check for multiple network interfaces.
      if (this->probe_interfaces (orb_core, def_type) == -1)
        return -1;

      // Probe interfaces has a side effect of potentially modifying
      // the default address, since that is where the address family
      // is considered.
      addr.set (this->default_address_);

      return this->open_i (addr,
                           reactor);
    }

#if defined (ACE_HAS_IPV6)
  // Check for violation of ORBConnectIPV6Only option
  if (this->orb_core_->orb_params ()->connect_ipv6_only () &&
      (addr.get_type () != AF_INET6 ||
       addr.is_ipv4_mapped_ipv6 ()))
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         ACE_TEXT ("TAO (%P|%t) - ")
                         ACE_TEXT ("DIOP_Acceptor::open, ")
                         ACE_TEXT ("non-IPv6 endpoints not allowed when ")
                         ACE_TEXT ("connect_ipv6_only is set\n\n")),
                        -1);
    }
#endif /* ACE_HAS_IPV6 */

  if (TAO_debug_level > 2)
    {
      ACE_DEBUG ((LM_DEBUG,
                  ACE_TEXT ("TAO (%P|%t) - ")
                  ACE_TEXT ("DIOP_Acceptor::open, specified host=%s:%d\n"),
                  (specified_hostname.length () == 0 ? "<null>" : specified_hostname.c_str ()),
                  addr.get_port_number ()));
    }

  this->endpoint_count_ = 1;  // Only one hostname to store

  ACE_NEW_RETURN (this->addrs_,
                  ACE_INET_Addr[this->endpoint_count_],
                  -1);

  ACE_NEW_RETURN (this->hosts_,
                  char *[this->endpoint_count_],
                  -1);

  this->hosts_[0] = 0;

  if (this->hostname (orb_core,
                      addr,
                      this->hosts_[0],
                      specified_hostname.c_str ()) != 0)
    return -1;

  // Copy the addr.  The port is (re)set in
  // TAO_DIOP_Acceptor::open_i().
  if (this->addrs_[0].set (addr) != 0)
    return -1;

  return this->open_i (addr,
                       reactor);
}

int TAO_DIOP_Acceptor::open_default	(	TAO_ORB_Core *	orb_core,
		ACE_Reactor *	reactor,
		int	version_major,
		int	version_minor,
		const char *	options = 0
	)			[virtual]

Implements TAO_Acceptor.

Definition at line 357 of file DIOP_Acceptor.cpp.

References ACE_ERROR_RETURN, ACE_TEXT, LM_ERROR, open_i(), ACE_INET_Addr::set(), TAO_GIOP_Message_Version::set_version(), and version_.

{
  this->orb_core_ = orb_core;

  if (this->hosts_ != 0)
    {
      // The hostname cache has already been set!
      // This is bad mojo, i.e. an internal TAO error.
      ACE_ERROR_RETURN ((LM_ERROR,
                         ACE_TEXT ("TAO (%P|%t) - ")
                         ACE_TEXT ("DIOP_Acceptor::open_default, ")
                         ACE_TEXT ("hostname already set\n\n")),
                        -1);
    }

  if (major >= 0 && minor >= 0)
    this->version_.set_version (static_cast<CORBA::Octet> (major),
                                static_cast<CORBA::Octet> (minor));

  // Parse options
  if (this->parse_options (options) == -1)
    return -1;

  // Check for multiple network interfaces.
  if (this->probe_interfaces (orb_core) == -1)
    return -1;

  // Now that each network interface's hostname has been cached, open
  // an endpoint on each network interface using the INADDR_ANY
  // address.
  ACE_INET_Addr addr;

  if (addr.set (this->default_address_) != 0)
    return -1;

  return this->open_i (addr, reactor);
}

int TAO_DIOP_Acceptor::open_i	(	const ACE_INET_Addr &	addr,
		ACE_Reactor *	reactor
	)			[protected, virtual]

Implement the common part of the open*() methods. This method is virtual to allow a derived class implementation to be invoked instead.

Definition at line 400 of file DIOP_Acceptor.cpp.

References ACE_DEBUG, ACE_ERROR, ACE_NEW_RETURN, ACE_TEXT, ACE_TEXT_CHAR_TO_TCHAR, address(), TAO_DIOP_Connection_Handler::close(), connection_handler_, default_address_, ACE_INET_Addr::get_port_number(), LM_DEBUG, LM_ERROR, TAO_DIOP_Connection_Handler::local_addr(), TAO_DIOP_Connection_Handler::open_server(), ACE_Event_Handler::READ_MASK, ACE_Reactor::register_handler(), ACE_Event_Handler::remove_reference(), ACE_INET_Addr::set_port_number(), and TAO_debug_level.

Referenced by open(), and open_default().

{
  ACE_NEW_RETURN (this->connection_handler_,
                  TAO_DIOP_Connection_Handler (this->orb_core_),
                  -1);

  this->connection_handler_->local_addr (addr);
  int result = this->connection_handler_->open_server ();
  if (result == -1)
    {
      delete this->connection_handler_;
      return result;
    }

  // Register only with a valid handle
  result =
    reactor->register_handler (this->connection_handler_,
                               ACE_Event_Handler::READ_MASK);
  if (result == -1)
    {
      // Close the handler (this will also delete connection_handler_).
      this->connection_handler_->close ();
      return result;
    }

  // Connection handler ownership now belongs to the Reactor.
  this->connection_handler_->remove_reference ();

  ACE_INET_Addr address;

  // We do this make sure the port number the endpoint is listening on
  // gets set in the addr.
  if (this->connection_handler_->peer ().get_local_addr (address) != 0)
    {
      if (TAO_debug_level > 0)
        ACE_ERROR ((LM_ERROR,
                    ACE_TEXT ("TAO (%P|%t) DIOP_Acceptor::open_i, ")
                    ACE_TEXT ("%p"),
                    ACE_TEXT ("cannot get local addr\n\n")));
      return -1;
    }

  // Set the port for each addr.  If there is more than one network
  // interface then the endpoint created on each interface will be on
  // the same port.  This is how a wildcard socket bind() is supposed
  // to work.
  unsigned short port = address.get_port_number ();
  for (CORBA::ULong j = 0; j < this->endpoint_count_; ++j)
    this->addrs_[j].set_port_number (port, 1);

  this->default_address_.set_port_number (port);

  if (TAO_debug_level > 5)
    {
      for (CORBA::ULong i = 0; i < this->endpoint_count_; ++i)
        {
          ACE_DEBUG ((LM_DEBUG,
                      ACE_TEXT ("TAO (%P|%t) - DIOP_Acceptor::open_i, ")
                      ACE_TEXT ("listening on: <%s:%u>\n"),
                      ACE_TEXT_CHAR_TO_TCHAR (this->hosts_[i]),
                      this->addrs_[i].get_port_number ()));
        }
    }

  return 0;
}

int TAO_DIOP_Acceptor::parse_address	(	const char *	address,
		ACE_INET_Addr &	addr,
		ACE_CString &	specified_hostname,
		int *	def_type = 0
	)			[protected]

Helper method Clear out 'addr' & 'specified_hostname' and initialize them based upon 'address'. If a non-zero pointer is passed in for def_type, this will be set to AF_INET6 if IPv6 support is enabled and supplied hostname is either [] or [::]. It will be set to AF_INET if the hostname is 0.0.0.0, otherwise it is set to AF_UNSPEC. This value is then passed to probe_interfaces by open.

Definition at line 515 of file DIOP_Acceptor.cpp.

References ACE_ERROR_RETURN, ACE_TEXT, AF_INET, AF_UNSPEC, ACE_OS::atoi(), ACE_String_Base< CHAR >::c_str(), ACE_String_Base< CHAR >::clear(), default_address_, ACE_INET_Addr::is_any(), LM_ERROR, MAXHOSTNAMELEN, ACE_OS::memcpy(), ACE_INET_Addr::set(), ACE_INET_Addr::set_port_number(), ACE_OS::strchr(), and ACE_OS::strcpy().

{
  {
    ACE_INET_Addr tmp;
    addr.set (tmp);
    specified_hostname.clear();
  }

  const char *port_separator_loc = ACE_OS::strchr (address, ':');
  char tmp_host[MAXHOSTNAMELEN + 1];
  tmp_host[0] = '\0';
  bool host_defaulted = port_separator_loc == address;
  bool ipv6_in_host = false;
  if (def_type)
    *def_type = AF_UNSPEC;

#if defined (ACE_HAS_IPV6)
  // Check if this is a (possibly) IPv6 supporting profile containing a
  // numeric IPv6 address representation.
  if ((this->version_.major > TAO_MIN_IPV6_IIOP_MAJOR ||
       this->version_.minor >= TAO_MIN_IPV6_IIOP_MINOR) &&
      address[0] == '[')
    {
      // In this case we have to find the end of the numeric address and
      // start looking for the port separator from there.
      char const * const cp_pos = ACE_OS::strchr (address, ']');
      if (cp_pos == 0)
        {
          // No valid IPv6 address specified.
          ACE_ERROR_RETURN ((LM_ERROR,
                             ACE_TEXT ("TAO (%P|%t) - ")
                             ACE_TEXT ("DIOP_Acceptor::open, ")
                             ACE_TEXT ("invalid IPv6 decimal address specified\n\n")),
                            -1);
        }
      else
        {
          // Extract out just the host part of the address.
          size_t const len = cp_pos - (address + 1);

          if (len >= sizeof (tmp_host))
            return -1;

          ipv6_in_host = true;
          host_defaulted = (cp_pos == address+1) ||
            (cp_pos == address+3 && address[1] == ':' && address[2] == ':');
          if (cp_pos[1] == ':')    // Look for a port
            port_separator_loc = cp_pos + 1;
          else
            port_separator_loc = 0;
          if (def_type)
            *def_type = AF_INET6;

          ACE_OS::memcpy (tmp_host, address + 1, len);
          tmp_host[len] = '\0';
        }
    }
  else
#endif /* ACE_HAS_IPV6 */
    if (!host_defaulted)
      {
        if (port_separator_loc != 0)
          {
            // Extract out just the host part of the address.
            size_t const len = port_separator_loc - address;

            if (len >= sizeof (tmp_host))
              return -1;

            ACE_OS::memcpy (tmp_host, address, len);
            tmp_host[len] = '\0';
          }
        else
          ACE_OS::strcpy (tmp_host, address);
      }

  if (!ipv6_in_host && !host_defaulted)
    {
      if (addr.set ((unsigned short) 0, tmp_host) != 0)
        return -1;
      this->default_address_.set (addr);
      host_defaulted = addr.is_any ();
      if (def_type)
        *def_type = AF_INET;
    }

  if (host_defaulted)
    {
      // First convert the port into a usable form.
      unsigned short portno = 0;
      if (port_separator_loc != 0)
        {
          portno =
            static_cast<u_short> (ACE_OS::atoi (port_separator_loc +
                                                sizeof (':')));
        }
      this->default_address_.set_port_number (portno);

      // Now reset the port and set the host.
      if (addr.set (this->default_address_) != 0)
        return -1;
    }
  else if (port_separator_loc == 0)
    {
      // The address is a hostname.  No port was specified, so assume
      // port zero (port will be chosen for us).
      specified_hostname = tmp_host[0] == '\0' ? address : tmp_host;
      if (addr.set ((unsigned short) 0,
                    specified_hostname.c_str ()) != 0)
        return -1;
    }
  else
    {
      // Host and port were specified.
      if (addr.set (address) != 0)
        return -1;
      if (tmp_host[0] == '\0')
        {
          // Extract out just the host part of the address.
          size_t const len = port_separator_loc - address;

          if (len >= sizeof (tmp_host))
            return -1;

          ACE_OS::memcpy (tmp_host, address, len);
          tmp_host[len] = '\0';
        }
      specified_hostname = tmp_host;
    }

  return 1;
}

int TAO_DIOP_Acceptor::parse_options

(

const char *

options

)

[protected, virtual]

Parse protocol specific options.

Definition at line 966 of file DIOP_Acceptor.cpp.

References ACE_ERROR_RETURN, ACE_TEXT, ACE_TEXT_CHAR_TO_TCHAR, ACE_String_Base< CHAR >::c_str(), ACE_String_Base< CHAR >::find(), ACE_String_Base< CHAR >::length(), LM_ERROR, ACE_String_Base_Const::npos, and ACE_String_Base< CHAR >::substring().

{
  if (str == 0)
    return 0;  // No options to parse.  Not a problem.

  // Use an option format similar to the one used for CGI scripts in
  // HTTP URLs.
  // e.g.:  option1=foo&option2=bar

  const ACE_CString options (str);

  const size_t len = options.length ();

  static const char option_delimiter = '&';

  // Count the number of options.
  CORBA::ULong option_count = 1;

  // Only check for endpoints after the protocol specification and
  // before the object key.
  for (size_t i = 0; i < len; ++i)
    if (options[i] == option_delimiter)
      ++option_count;

  // The idea behind the following loop is to split the options into
  // (option, name) pairs.
  // For example,
  //    `option1=foo&option2=bar'
  // will be parsed into:
  //    `option1=foo'
  //    `option2=bar'

  ACE_CString::size_type begin = 0;
  ACE_CString::size_type end = 0;

  for (CORBA::ULong j = 0; j < option_count;)
    {
      if (j < option_count - 1)
        end = options.find (option_delimiter, begin);
      else
        end = len;

      ++j;  // In this way we fight MS VS warning about unreachable code.

      if (end == begin)
        {
          ACE_ERROR_RETURN ((LM_ERROR,
                             ACE_TEXT ("TAO (%P|%t) - Zero length DIOP option.\n")),
                            -1);
        }
      else if (end != ACE_CString::npos)
        {
          ACE_CString opt = options.substring (begin, end - begin);

          ACE_CString::size_type const slot = opt.find ("=");

          if (slot == len - 1
              || slot == ACE_CString::npos)
            ACE_ERROR_RETURN ((LM_ERROR,
                               ACE_TEXT ("TAO (%P|%t) - DIOP option <%s> is ")
                               ACE_TEXT ("missing a value.\n"),
                               ACE_TEXT_CHAR_TO_TCHAR (opt.c_str ())),
                              -1);

          ACE_CString name = opt.substring (0, slot);
          ACE_CString value = opt.substring (slot + 1);

          begin = end + 1;

          if (name.length () == 0)
            ACE_ERROR_RETURN ((LM_ERROR,
                               ACE_TEXT ("TAO (%P|%t) - Zero length DIOP ")
                               ACE_TEXT ("option name.\n")),
                              -1);

          if (name == "priority")
            {
              ACE_ERROR_RETURN ((LM_ERROR,
                                 ACE_TEXT ("TAO (%P|%t) - Invalid DIOP endpoint format: ")
                                 ACE_TEXT ("endpoint priorities no longer supported. \n")),
                                -1);
            }
          else
            {
              ACE_ERROR_RETURN ((LM_ERROR,
                                 ACE_TEXT ("TAO (%P|%t) - Invalid DIOP option: <%s>\n"),
                                 ACE_TEXT_CHAR_TO_TCHAR (name.c_str ())),
                                -1);
            }
        }
      else
        {
          break;  // No other options.
        }
    }
  return 0;
}

int TAO_DIOP_Acceptor::probe_interfaces	(	TAO_ORB_Core *	orb_core,
		int	def_type = AF_UNSPEC
	)			[protected]

Probe the system for available network interfaces, and initialize the <addrs_> array with an ACE_INET_Addr for each network interface. The port for each initialized ACE_INET_Addr will be set in the open_i() method. This method only gets invoked when no explicit hostname is provided in the specified endpoint.

The optional argument def_type is used to constrain the resulting list of interfaces to be either only IPv6 or IPv4, or both, when ACE_HAS_IPV6 is enabled and the source endpoint was an explicitly declared wildcard.

Definition at line 696 of file DIOP_Acceptor.cpp.

References ACE_DEBUG, ACE_NEW_RETURN, ACE_TEXT, AF_INET, ENOTSUP, ACE::get_ip_interfaces(), LM_DEBUG, LM_WARNING, ACE_OS::memset(), TAO_ORB_Core::orb_params(), and TAO_debug_level.

{
  // Extract the hostname for each network interface, and then cache
  // it.  The hostnames will then be used when creating a
  // TAO_DIOP_Profile for each endpoint setup on the probed
  // network interfaces.
  ACE_INET_Addr *if_addrs = 0;
  size_t if_cnt = 0;

  if (ACE::get_ip_interfaces (if_cnt,
                              if_addrs) != 0
      && errno != ENOTSUP)
    {
      // In the case where errno == ENOTSUP, if_cnt and if_addrs will
      // not be modified, and will each remain equal to zero.  This
      // causes the default interface to be used.
      return -1;
    }

  if (if_cnt == 0 || if_addrs == 0)
    {
      if (TAO_debug_level > 0)
        {
          ACE_DEBUG ((LM_WARNING,
                      ACE_TEXT ("TAO (%P|%t) - Unable to probe network ")
                      ACE_TEXT ("interfaces.  Using default.")));
        }

      if_cnt = 1; // Force the network interface count to be one.
      delete [] if_addrs;
      ACE_NEW_RETURN (if_addrs,
                      ACE_INET_Addr[if_cnt],
                      -1);
    }

  // Scan for the loopback interface since it shouldn't be included in
  // the list of cached hostnames unless it is the only interface.
  size_t lo_cnt = 0;  // Loopback interface count
  for (size_t j = 0; j < if_cnt; ++j)
    if (if_addrs[j].is_loopback ())
      lo_cnt++;

#if defined (ACE_HAS_IPV6)
  size_t ipv4_cnt = 0;
  size_t ipv4_lo_cnt = 0;
  size_t ipv6_ll = 0;
  bool ipv6_non_ll = false;
  // Scan for IPv4 interfaces since these should not be included
  // when IPv6-only is selected.
  for (size_t j = 0; j < if_cnt; ++j)
    if (if_addrs[j].get_type () != AF_INET6 ||
        if_addrs[j].is_ipv4_mapped_ipv6 ())
      {
        ++ipv4_cnt;
        if (if_addrs[j].is_loopback ())
          ++ipv4_lo_cnt;  // keep track of IPv4 loopback ifs
      }
    else if (!if_addrs[j].is_linklocal () &&
             !if_addrs[j].is_loopback())
      {
        ipv6_non_ll = true; // we have at least 1 non-local IPv6 if
      }
    else if (!orb_core->orb_params ()->use_ipv6_link_local () &&
             if_addrs[j].is_linklocal ())
      {
        ++ipv6_ll;  // count link local addrs to exclude them afterwards
      }
#endif /* ACE_HAS_IPV6 */

  // The instantiation for this template is in
  // tao/DIOP_Connector.cpp.
  ACE_Auto_Basic_Array_Ptr<ACE_INET_Addr> safe_if_addrs (if_addrs);

#if defined (ACE_HAS_IPV6)
  bool ipv4_only = def_type == AF_INET;
  bool ipv6_only = (def_type == AF_INET6) ||
    orb_core->orb_params ()->connect_ipv6_only ();
#if defined (ACE_WIN32)
  if (this->default_address_.get_type () == AF_INET)
    ipv4_only = true;
  else
    ipv6_only = true;
#endif /* ACE_WIN32 */
  // If the loopback interface is the only interface then include it
  // in the list of interfaces to query for a hostname, otherwise
  // exclude it from the list.
  bool ignore_lo;
  if (ipv6_only)
    // only exclude loopback if non-local if exists
    ignore_lo = ipv6_non_ll;
  else if (ipv4_only)
    ignore_lo = ipv4_cnt != ipv4_lo_cnt;
  else
    ignore_lo = if_cnt != lo_cnt;

  // Adjust counts for IPv6 only if required
  size_t if_ok_cnt = if_cnt;
  if (ipv6_only)
    {
      if_ok_cnt -= ipv4_cnt;
      lo_cnt -= ipv4_lo_cnt;
      ipv4_lo_cnt = 0;
    }
  else if (ipv4_only)
    {
      if_ok_cnt = ipv4_cnt;
      lo_cnt = ipv4_lo_cnt;
    }

  // In case there are no non-local IPv6 ifs in the list only exclude
  // IPv4 loopback.
  // IPv6 loopback will be needed to successfully connect IPv6 clients
  // in a localhost environment.
  if (!ipv4_only && !ipv6_non_ll)
    lo_cnt = ipv4_lo_cnt;

  if (!ignore_lo)
    this->endpoint_count_ = static_cast<CORBA::ULong> (if_ok_cnt - ipv6_ll);
  else
    this->endpoint_count_ = static_cast<CORBA::ULong> (if_ok_cnt - ipv6_ll - lo_cnt);
#else /* ACE_HAS_IPV6 */
  // If the loopback interface is the only interface then include it
  // in the list of interfaces to query for a hostname, otherwise
  // exclude it from the list.
  bool ignore_lo;
  ignore_lo = if_cnt != lo_cnt;
  if (!ignore_lo)
    this->endpoint_count_ = static_cast<CORBA::ULong> (if_cnt);
  else
    this->endpoint_count_ = static_cast<CORBA::ULong> (if_cnt - lo_cnt);
#endif /* !ACE_HAS_IPV6 */

  if (this->endpoint_count_ == 0)
    {
      if (TAO_debug_level > 0)
        ACE_DEBUG ((LM_DEBUG,
                    ACE_TEXT("(%P|%t) - DIOP_Acceptor::probe_interfaces, ")
                    ACE_TEXT("found no usable addresses, def_type = %d\n"),
                    def_type));
      return -1;
    }

  ACE_NEW_RETURN (this->addrs_,
                  ACE_INET_Addr[this->endpoint_count_],
                  -1);

  ACE_NEW_RETURN (this->hosts_,
                  char *[this->endpoint_count_],
                  -1);

  ACE_OS::memset (this->hosts_, 0, sizeof (char*) * this->endpoint_count_);

  // The number of hosts/interfaces we want to cache may not be the
  // same as the number of detected interfaces so keep a separate
  // count.
  size_t host_cnt = 0;

  for (size_t i = 0; i < if_cnt; ++i)
    {
#if defined (ACE_HAS_IPV6)
      // Ignore any loopback interface if there are other
      // non-loopback interfaces.
      if (ignore_lo &&
          if_addrs[i].is_loopback () &&
          (ipv4_only ||
           ipv6_non_ll ||
           if_addrs[i].get_type () != AF_INET6))
        continue;

      // Ignore any non-IPv4 interfaces when so required.
      if (ipv4_only &&
          (if_addrs[i].get_type () != AF_INET))
        continue;

      // Ignore any non-IPv6 interfaces when so required.
      if (ipv6_only &&
          (if_addrs[i].get_type () != AF_INET6 ||
           if_addrs[i].is_ipv4_mapped_ipv6 ()))
        continue;

      // Ignore all IPv6 link local interfaces when so required.
      if (!orb_core->orb_params ()->use_ipv6_link_local () &&
          if_addrs[i].is_linklocal ())
        continue;
#else /* ACE_HAS_IPV6 */
      // Ignore any loopback interface if there are other
      // non-loopback interfaces.
      if (ignore_lo &&
          if_addrs[i].is_loopback ())
        continue;
#endif /* !ACE_HAS_IPV6 */

      if (this->hostname (orb_core,
                          if_addrs[i],
                          this->hosts_[host_cnt]) != 0)
        return -1;

      // Copy the addr.  The port is (re)set in
      // TAO_DIOP_Acceptor::open_i().
      if (this->addrs_[host_cnt].set (if_addrs[i]) != 0)
        return -1;

      host_cnt++;
    }

  return 0;
}

ACE_INLINE void TAO_DIOP_Acceptor::set_default_address

(

const ACE_INET_Addr &

addr

)

Set address for default endpoint.

Definition at line 35 of file DIOP_Acceptor.inl.

References default_address_, and ACE_INET_Addr::set().

{
  this->default_address_.set (addr);
}

---

Member Data Documentation

ACE_INET_Addr* TAO_DIOP_Acceptor::addrs_ [protected]

Array of ACE_INET_Addr instances, each one corresponding to a given network interface.

Definition at line 172 of file DIOP_Acceptor.h.

Referenced by address(), and endpoints().

TAO_DIOP_Connection_Handler* TAO_DIOP_Acceptor::connection_handler_ [private]

Definition at line 202 of file DIOP_Acceptor.h.

Referenced by open_i().

ACE_INET_Addr TAO_DIOP_Acceptor::default_address_ [protected]

Address for default endpoint.

Definition at line 198 of file DIOP_Acceptor.h.

Referenced by default_address(), open_i(), parse_address(), and set_default_address().

CORBA::ULong TAO_DIOP_Acceptor::endpoint_count_ [protected]

The number of host names cached in the hosts_ array (equivalent to the number of endpoints opened by this Acceptor).

Definition at line 185 of file DIOP_Acceptor.h.

char** TAO_DIOP_Acceptor::hosts_ [protected]

Cache the information about the endpoints serviced by this acceptor. There may in fact be multiple hostnames for this endpoint. For example, if the IP address is INADDR_ANY (0.0.0.0) then there will be possibly a different hostname for each interface.

Definition at line 181 of file DIOP_Acceptor.h.

TAO_ORB_Core* TAO_DIOP_Acceptor::orb_core_ [protected]

ORB Core.

Definition at line 195 of file DIOP_Acceptor.h.

TAO_GIOP_Message_Version TAO_DIOP_Acceptor::version_ [protected]

The GIOP version for this endpoint @ Theoretically they shouldn't be here!! We need to look at a way to move this out

Definition at line 192 of file DIOP_Acceptor.h.

Referenced by create_new_profile(), create_shared_profile(), open(), and open_default().

---

The documentation for this class was generated from the following files:

• DIOP_Acceptor.h
• DIOP_Acceptor.cpp
• DIOP_Acceptor.inl

---