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juce::StreamingSocket Class Referencefinal

#include <juce_Socket.h>

Public Member Functions

 StreamingSocket ()
 
 ~StreamingSocket ()
 
bool bindToPort (int localPortNumber)
 
bool bindToPort (int localPortNumber, const String &localAddress)
 
int getBoundPort () const noexcept
 
bool connect (const String &remoteHostname, int remotePortNumber, int timeOutMillisecs=3000)
 
bool isConnected () const noexcept
 
void close ()
 
const StringgetHostName () const noexcept
 
int getPort () const noexcept
 
bool isLocal () const noexcept
 
int getRawSocketHandle () const noexcept
 
int waitUntilReady (bool readyForReading, int timeoutMsecs)
 
int read (void *destBuffer, int maxBytesToRead, bool blockUntilSpecifiedAmountHasArrived)
 
int write (const void *sourceBuffer, int numBytesToWrite)
 
bool createListener (int portNumber, const String &localHostName=String())
 
StreamingSocketwaitForNextConnection () const
 

Detailed Description

A wrapper for a streaming (TCP) socket.

This allows low-level use of sockets; for an easier-to-use messaging layer on top of sockets, you could also try the InterprocessConnection class.

See also
DatagramSocket, InterprocessConnection, InterprocessConnectionServer

Definition at line 37 of file juce_Socket.h.

Constructor & Destructor Documentation

◆ StreamingSocket()

juce::StreamingSocket::StreamingSocket ( )

Creates an uninitialised socket.

To connect it, use the connect() method, after which you can read() or write() to it.

To wait for other sockets to connect to this one, the createListener() method enters "listener" mode, and can be used to spawn new sockets for each connection that comes along.

Definition at line 457 of file juce_Socket.cpp.

Referenced by waitForNextConnection().

◆ ~StreamingSocket()

juce::StreamingSocket::~StreamingSocket ( )

Destructor.

Definition at line 474 of file juce_Socket.cpp.

Member Function Documentation

◆ bindToPort() [1/2]

bool juce::StreamingSocket::bindToPort ( int  localPortNumber)

Binds the socket to the specified local port.

Returns
true on success; false may indicate that another socket is already bound on the same port

Definition at line 503 of file juce_Socket.cpp.

Referenced by bindToPort().

◆ bindToPort() [2/2]

bool juce::StreamingSocket::bindToPort ( int  localPortNumber,
const String localAddress 
)

Binds the socket to the specified local port and local address.

If localAddress is not an empty string then the socket will be bound to localAddress as well. This is useful if you would like to bind your socket to a specific network adapter. Note that localAddress must be an IP address assigned to one of your network address otherwise this function will fail.

Returns
true on success; false may indicate that another socket is already bound on the same port
See also
bindToPort(int localPortNumber), IPAddress::getAllAddresses

Definition at line 508 of file juce_Socket.cpp.

◆ close()

void juce::StreamingSocket::close ( )

Closes the connection.

Definition at line 553 of file juce_Socket.cpp.

Referenced by connect(), createListener(), and ~StreamingSocket().

◆ connect()

bool juce::StreamingSocket::connect ( const String remoteHostname,
int  remotePortNumber,
int  timeOutMillisecs = 3000 
)

Tries to connect the socket to hostname:port.

If timeOutMillisecs is 0, then this method will block until the operating system rejects the connection (which could take a long time).

Returns
true if it succeeds, false if otherwise
See also
isConnected

Definition at line 520 of file juce_Socket.cpp.

◆ createListener()

bool juce::StreamingSocket::createListener ( int  portNumber,
const String localHostName = String() 
)

Puts this socket into "listener" mode.

When in this mode, your thread can call waitForNextConnection() repeatedly, which will spawn new sockets for each new connection, so that these can be handled in parallel by other threads.

Parameters
portNumberthe port number to listen on
localHostNamethe interface address to listen on - pass an empty string to listen on all addresses
Returns
true if it manages to open the socket successfully
See also
waitForNextConnection

Definition at line 565 of file juce_Socket.cpp.

◆ getBoundPort()

int juce::StreamingSocket::getBoundPort ( ) const
noexcept

Returns the local port number to which this socket is currently bound.

This is useful if you need to know to which port the OS has actually bound your socket when calling the constructor or bindToPort with zero as the localPortNumber argument.

Returns
-1 if the function fails

Definition at line 515 of file juce_Socket.cpp.

◆ getHostName()

const String & juce::StreamingSocket::getHostName ( ) const
inlinenoexcept

Returns the name of the currently connected host.

Definition at line 105 of file juce_Socket.h.

◆ getPort()

int juce::StreamingSocket::getPort ( ) const
inlinenoexcept

Returns the port number that's currently open.

Definition at line 108 of file juce_Socket.h.

◆ getRawSocketHandle()

int juce::StreamingSocket::getRawSocketHandle ( ) const
inlinenoexcept

Returns the OS's socket handle that's currently open.

Definition at line 114 of file juce_Socket.h.

◆ isConnected()

bool juce::StreamingSocket::isConnected ( ) const
inlinenoexcept

True if the socket is currently connected.

Definition at line 99 of file juce_Socket.h.

Referenced by isLocal().

◆ isLocal()

bool juce::StreamingSocket::isLocal ( ) const
noexcept

True if the socket is connected to this machine rather than over the network.

Definition at line 616 of file juce_Socket.cpp.

◆ read()

int juce::StreamingSocket::read ( void destBuffer,
int  maxBytesToRead,
bool  blockUntilSpecifiedAmountHasArrived 
)

Reads bytes from the socket.

If blockUntilSpecifiedAmountHasArrived is true, the method will block until maxBytesToRead bytes have been read, (or until an error occurs). If this flag is false, the method will return as much data as is currently available without blocking.

Returns
the number of bytes read, or -1 if there was an error
See also
waitUntilReady

Definition at line 480 of file juce_Socket.cpp.

◆ waitForNextConnection()

StreamingSocket * juce::StreamingSocket::waitForNextConnection ( ) const

When in "listener" mode, this waits for a connection and spawns it as a new socket.

The object that gets returned will be owned by the caller.

This method can only be called after using createListener().

See also
createListener

Definition at line 596 of file juce_Socket.cpp.

◆ waitUntilReady()

int juce::StreamingSocket::waitUntilReady ( bool  readyForReading,
int  timeoutMsecs 
)

Waits until the socket is ready for reading or writing.

If readyForReading is true, it will wait until the socket is ready for reading; if false, it will wait until it's ready for writing.

If the timeout is < 0, it will wait forever, or else will give up after the specified time.

Returns
1 if the socket is ready on return, 0 if it times-out before the socket becomes ready, or -1 if an error occurs

Definition at line 496 of file juce_Socket.cpp.

◆ write()

int juce::StreamingSocket::write ( const void sourceBuffer,
int  numBytesToWrite 
)

Writes bytes to the socket from a buffer.

Note that this method will block unless you have checked the socket is ready for writing before calling it (see the waitUntilReady() method).

Returns
the number of bytes written, or -1 if there was an error

Definition at line 487 of file juce_Socket.cpp.


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