D7ucoin is an experimental new digital currency that enables instant payments to anyone, anywhere in the world. D7ucoin uses peer-to-peer technology to operate with no central authority: managing transactions and issuing money are carried out collectively by the network. D7ucoin Core is the name of open source software which enables the use of this currency.
For more information, as well as an immediately useable, binary version of the D7ucoin Core software, see https://www.d7ucoin.com/en/download.
D7ucoin Core is released under the terms of the MIT license. See COPYING for more information or see http://opensource.org/licenses/MIT.
compiling for debugging
Run configure with the --enable-debug option, then make. Or run configure with CXXFLAGS="-g -ggdb -O0" or whatever debug flags you need.
debug.log
If the code is behaving strangely, take a look in the debug.log file in the data directory; error and debugging messages are written there.
The -debug=... command-line option controls debugging; running with just -debug will turn on all categories (and give you a very large debug.log file).
The Qt code routes qDebug() output to debug.log under category "qt": run with -debug=qt to see it.
testnet and regtest modes
Run with the -testnet option to run with "play d7ucoins" on the test network, if you are testing multi-machine code that needs to operate across the internet.
If you are testing something that can run on one machine, run with the -regtest option. In regression test mode, blocks can be created on-demand; see qa/rpc-tests/ for tests that run in -regtest mode.
DEBUG_LOCKORDER
D7ucoin Core is a multithreaded application, and deadlocks or other multithreading bugs can be very difficult to track down. Compiling with -DDEBUG_LOCKORDER (configure CXXFLAGS="-DDEBUG_LOCKORDER -g") inserts run-time checks to keep track of which locks are held, and adds warnings to the debug.log file if inconsistencies are detected.