Added StringFormat class, which internally calls vasprintf.
operator<< is defined for this class, so it can be used with iostream
classes nicely. SimpleLogger and following functions are rewritten
using StringFormat class.
Besides, now Logger class's methods are non-const, many classes
that has a const Logger* as a member variable are modified to remove
const qualifier from the variable declaration.
* src/HelpItemFactory.cc
* src/Request.cc
* src/SimpleLogger.cc
* src/StringFormat.cc
* src/StringFormat.h
* src/Util.cc
* src/option_processing.cc
* src/version_usage.cc
* test/StringFormatTest.cc
* src/*.h: The classes that has const Logger* as a member variable.
Rewritten SharedHandle. Now copy constructor taking raw pointer
has
keyword explicit and SharedHandle's default constructor
initializes
its internal obj to null, old implementation initializes it
using
obj's default constructor.
To assign null, write SharedHandle<T> x(...); x.reset();
TODO: test/SharedHandleTest.cc needs more tests.
* src/SharedHandle.h
Added DHTMessageDispatcherImpl. Now DHTMessageDispatcher is pure
virtual.
* src/DHTMessageDispatcher.h
* src/DHTMessageDispatcherImpl.{h, cc}
* src/DHTSetup.cc