PLCnext API Documentation
21.0.0.35466
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Namespace for network specific classes, enumerations and functions. More...
Classes | |
class | IpAddress |
Unified representation for ip address schemes. More... | |
class | Socket |
Interface to realizes ethernet based communications. More... | |
class | TlsSocket |
Interface to realize TLS Connection over TCP More... | |
Functions | |
std::ostream & | operator<< (std::ostream &os, SocketError arg) |
std::istream & | operator>> (std::istream &is, SocketError &arg) |
Namespace for network specific classes, enumerations and functions.
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Supported blocking modes.
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None | Blocking mode is undefined. |
Blocking | Socket is in blocking mode, i.e. the Send*, Receive* and Accept methods will block if no data is available. |
NoneBlocking | Socket is in non-blocking mode, i.e. the Send*, Receive* and Accept methods will not block if no data is available. |
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Possible error codes for socket operation results.
Enumerator | |
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None | The Socket operation succeeded. |
Any | An unspecified Socket error has occurred. |
Interrupted | A blocking operation was interrupted. |
InvalidArgument | An invalid argument was supplied. |
TooManyOpenSockets | Too many open sockets. |
WouldBlock | A non-blocking socket operation could not be completed immediately. |
InProgress | A blocking operation is currently executing. |
AlreadyInProgress | An operation was attempted on a non-blocking socket that already had an operation in progress. |
NotSocket | An operation was attempted on something that is not a socket. |
DestinationAddressRequired | A required address was omitted from an operation on a socket. |
MessageSize | A message sent on a datagram socket was larger than the internal message buffer or some other network limit, or the buffer used to receive a datagram into was smaller than the datagram itself. |
ProtoType | A protocol was specified in the socket function call that does not support the semantics of the socket type requested. |
ProtocolOption | An unknown, invalid, or unsupported option or level was specified in a getsockopt or setsockopt call. |
ProtocolNotSupported | The requested protocol has not been configured into the system, or no implementation for it exists. |
SocketNotSupported | The support for the specified socket type does not exist in this address family. |
OperationNotSupported | The attempted operation is not supported for the type of object referenced. |
ProtocolFamilyNotSupported | The protocol family has not been configured into the system or no implementation for it exists. |
AddressFamilyNotSupported | An address incompatible with the requested protocol was used. |
AddressAlreadyInUse | Only one usage of each socket address (protocol/network address/port) is normally permitted. |
AddressNotAvailable | The requested address is not valid in its context. |
NetworkDown | A socket operation encountered a dead network. |
NetworkUnreachable | A socket operation was attempted to an unreachable network. |
NetworkReset | The connection has been broken due to keep-alive activity detecting a failure while the operation was in progress. |
ConnectionAborted | An established connection was aborted by the software in your host machine. |
ConnectionReset | An existing connection was forcibly closed by the remote host. |
NoBufferSpaceAvailable | An operation on a socket could not be performed because the system lacked sufficient buffer space or because a queue was full. |
IsConnected | A connect request was made on an already connected socket. |
NotConnected | A request to send or receive data was disallowed because the socket is not connected and (when sending on a datagram socket using a sendto call) no address was supplied. |
Shutdown | A request to send or receive data was disallowed because the socket had already been shut down in that direction with a previous shutdown call. |
TimedOut | A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond. |
ConnectionRefused | No connection could be made because the target machine actively refused it. |
HostDown | A socket operation failed because the destination host was down. |
HostUnreachable | A socket operation was attempted to an unreachable host. |
ProcessLimit | A Sockets implementation may have a limit on the number of applications that may use it simultaneously. |
SystemNotReady | Startup cannot function at this time because the underlying system it uses to provide network services is currently unavailable. |
VersionNotSupported | The Sockets version requested is not supported. |
NotInitialized | Either the application has not called Startup, or Startup failed. |
Disconnecting | Returned by Recv or RecvFrom to indicate the remote party has initiated a graceful shutdown sequence. |
HostNotFound | No such host is known. |
TryAgain | This is usually a temporary error during host name resolution and means that the local server did not receive a response from an authoritative server. |
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Specifies socket options to be set by the application. Copied from Eclr Socket Adaption
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