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Vault
4.1
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Vault
4.1
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Connects to the all DNS resolved IP addresses for a host name, in parallel batches, until one succeeds or a specified timeout is reached. More...
#include <vsocket.h>
Public Member Functions | |
| VSocketConnectionStrategyThreaded (const VDuration &timeoutInterval, int maxNumThreads=4) | |
| virtual void | connect (const VString &hostName, int portNumber, VSocket &socketToConnect) const |
| The VSocketConnectionStrategy interface to be implemented by concrete subclasses. | |
Connects to the all DNS resolved IP addresses for a host name, in parallel batches, until one succeeds or a specified timeout is reached.
This strategy makes most sense with IPv6 where DNS is supposed to return a preferred-order list of resolved names (rather than round- robining) but where we have an opportunity to use the one that responds fastest.
| void VSocketConnectionStrategyThreaded::connect | ( | const VString & | hostName, |
| int | portNumber, | ||
| VSocket & | socketToConnect | ||
| ) | const [virtual] |
The VSocketConnectionStrategy interface to be implemented by concrete subclasses.
Connects to the host name by resolving it and then applying the strategy to the resolved IP addresses. If the strategy fails (for whatever reason, be it a connect failure or a timeout) it shall throw a VException.
| hostName | the name to resolve and connect to |
| portNumber | the port number to connect to |
| socketToConnect | if successful, this Vault socket object is to be mutated upon return to have the connected socket's host IP address and low-level VSocketID; for simple non-threaded strategies it is acceptable to simply call this object's connectToIPAddress() and leave the results in place if successful |
Implements VSocketConnectionStrategy.
Definition at line 987 of file vsocket.cpp.
References VString::chars(), VSocket::getHostIPAddress(), VSocket::kNoSocketID, VSocketConnectionStrategy::mDebugIPAddresses, VDuration::MILLISECOND(), NULL, VSocket::setHostIPAddressAndPort(), VSocket::setSockID(), VThread::sleep(), and VThread::start().