…hread, libstdc++, ..

build examples also on mingw

Signed-off-by: hayati ayguen <h_ayguen@web.de>

moved Open() and ConnectXX methods from ActiveSocket into SimpleSocket
PassiveSocket now returns SimpleSocket at Accept()
ActiveSocket got unnecessary .. but kept file for compatibility

Signed-off-by: hayati ayguen <h_ayguen@web.de>

* added example DelayedEchoServer - sends back received data after some delay
* added console/log output to EchoServer example
* added example TxToServer -  sends tcp data to echo server
  utilizes SetSendWindowSize() and fixed Select()/WaitUntilReadable()
* added example UdpServer - prints received data to stderr
* added example TxToUdpServer - sends udp data to udp server

* added alias (inline) CPassiveSocket::Bind()
  for BindMulticast() without multicast group
* fixed BindMulticast() for NULL ptr to mulicast group

* added alias (inline) CSimpleSocket::ConnectTo() for Open()
* added aliases CloseForXX() for Shutdown() variants
* fixed SetReceiveTimeout() and SetSendTimeout() for Windows:
  Windows does not expect/support struct timeval - only milliseconds
* added aliases SetReceiveTimeoutMillis() and SetSendTimeoutMillis()
* added extra options bAwakeWhenReadable and bAwakeWhenWritable for Select(),
  both defaulting to true - as before, but usually not making much sense!
* added aliases WaitUntilReadable() and WaitUntilWritable() with milliseconds
* added aliases GetSocketErrorText() for DescribeError)
* added alias Reveive() with 'char*'
* added alias Send() with  'const char*'
* added aliases Transmit() with 'const uint8*' and 'const char*'
* renamed SetOptionLinger()'s nTime parameter to nTimeInSeconds

Signed-off-by: hayati ayguen <h_ayguen@web.de>

Signed-off-by: hayati ayguen <h_ayguen@web.de>

added GetNumReceivableBytes()
added IsServerSide()
added Get(Peer/Local)(Addr/Port)
allow examples to connect from remote computers
  this is for testing examples (server/client) on different OS/machines
rebase amended bugfix patch from lethosor for DARWIN/OS X

Signed-off-by: hayati ayguen <h_ayguen@web.de>

* SetConnectTimeoutMillis() was setting the receive timeout
* optimization: CPassiveSocket::Accept() does now waits for result of accept()
  before creating CSimpleSocket()
  - that's interesting for a NonBlocking CPassiveSocket
* added bool CSimpleSocket::IsSocketPeerClosed()
  returning if remote side closed the socket
* made IsBlocking() const
* added inlines for IsSocketPeerOpen(), IsSocketInvalid() and IsNonblocking()
  simplifying logic in if expressions
* added internal PRINT_CLOSE macro for debugging

Signed-off-by: hayati ayguen <h_ayguen@web.de>

problem scenario: when there's already an error outside the clsocket lib,
  then TranslateSocketError() could pick up the error,
  which was not caused by the clsocket-operation
added ClearSystemError() and use it in some cases
call/use TranslateSocketError() when necessary

Signed-off-by: hayati ayguen <h_ayguen@web.de>

Signed-off-by: hayati ayguen <h_ayguen@web.de>

with kind permission of Procitec:
* bugfixes in multicast UDP operation
* enhancend for multithreaded use:
 - use GetAddrInfo[Static]() instead of deprecated GETHOSTBYNAME()
 - GetIPv4AddrInfoStatic() to allow address resolution without
   a connection instance
* docs and other minor enhancements

Signed-off-by: hayati ayguen <h_ayguen@web.de>

* mingw is missing inet_pton() function.
 - added replacement implementation
 - switched on with cmake option CLSOCKET_OWN_INET_PTON
* msvc: static build against c runtime with cmake CLSOCKET_SHARED off
* build examples with msvc - except clsocket-example requiring pthread

Signed-off-by: hayati ayguen <h_ayguen@web.de>

* fixed CSimpleSocket::GetClientPort()
* fixed peer/local address in CPassiveSocket::Accept()
* fixed Linux compilation in CPassiveSocket::Listen()
* added CSimpleSocket::Bind() for tcp/udp client connections
* enhanced all examples: all print local/peer address and port
* fixed output of GetLocalAddr() and GetPeerAddr() in examples
* examples txtoserver and txtoudpserver with optional local binding

Signed-off-by: hayati ayguen <h_ayguen@web.de>

* looks, some systems return random value!
  directly return 0 in this case

Signed-off-by: hayati ayguen <h_ayguen@web.de>

* renamed EXPORT to CLSOCKET_API, it's for export and import
* added definition CLSOCKET_NO_EXPORT for not exporting private methods
* cmake: export symbols only for shared library: EXPORT_CLSOCKET_SYMBOLS
* have default visibility hidden - also on linux ..

Signed-off-by: hayati ayguen <h_ayguen@web.de>

Signed-off-by: hayati ayguen <h_ayguen@web.de>

Signed-off-by: hayati ayguen <h_ayguen@web.de>

…elect()

Signed-off-by: hayati ayguen <h_ayguen@web.de>

Signed-off-by: Hayati Ayguen <h.ayguen@procitec.de>

Signed-off-by: Hayati Ayguen <h.ayguen@procitec.de>