I’m currently trying to get the Mario project from https://github.com/aleju/mario-ai to work on my ubuntu (16.04) system. I followed the tutorial and already solved some errors, but now I get something that looks like a compile error on the lsnes emulator and that doesn’t make sense to me. My command is LDFLAGS=”-L/usr/lib -L/usr/local/lib -L/usr/lib/x86_64-linux-gnu” CFLAGS=”-I/usr/include -I/usr/local/include -I/usr/include/lua5.1″ make. I added
Tag: c++
With hypervisor, How to surveillance the time when target process is created or terminated
I would like to make my hypervisor on linux for detecting and surveillance target process like a malware. To achieve this, the hypervisor need to detect processes that is created or terminated or task switched. On intel CPU, I knew that cr3 register indicate those roles. for example, when cr3 register value is changed, vmexit caused. And it means executed
Concatenate float with a string inside the arguments
Right off the bat, no this is not a duplicate. I have been searching for hours to do this but it might be simple as I started coding a few weeks ago. How do I concatenate a string with a float inside the arguments? I want to be able to do this, but it is not working: Yes, this is
pthread mutex does not work correctly on macOS
Currently I am learning POSIX threads on Linux. The following example is counting how many 3(int) there are in an integer array, which returns a correct answer on CentOS 6.5 but a wrong one on macOS 10.12.4. The answer should be 64 * 1024 * 1024 / 2 = 67,108,864 / 2 = 33,554,432. But the answer on macOS is
Open MPI error when setting up a cluster with more than 3 hosts
We cannot run a program in a Open MPI cluster with more than 3 machines. If we run: it works. If we run: We get the following error: Despite of the fact that it looks like a name resolution error, it is not, because slave5 works on the first command. We’ve seen other people reporting the same error without any
Receive (recv) full request (e.g. curl HTTP)
How should this be done? I want to receive a (rather long) HTTP request and cannot get this to work. The problem: Without flags, recv does not read the whole message. I guess this is normal behavior. From what I understand using the MSG_WAITALL flag causes it to block until everything is received. However, in that case the call blocks
System call that shows processes filtered by their status
I am making a system call that loops through every process with a certain status (passed to the syscall as a parameter) and show their Name, PID, UID and the name of their children. This is what I have so far: This prints all of the system’s processes and their children, completely ignoring the condition if(task->state == state), which is
Arduino and cpp file communication
I’ve connected a sensor with my Arduino board and am running a sketch which retrieves some data from the sensor and stores it in 4 double variables. I need to access these 4 variables from another .cpp file. To do this I’ve created a common header file for both which declares 4 extern variables. These are then defined in the
C read() : Invalid arguments
I am trying to read from a nbd device with function read() Here is the code: argv[2] is a nbd device: /dev/nbd0 MSGDEBUG is defined to print __FILE__, __LINE__ and __FUNCTION__ and I got the error msg: Error!!! dedup.c: 554: main read: Invalid argument err: 0 Aborted Am I doing something wrong? Answer read returns 0 which is not an
Controlling Jabra 710 USB speaker volume from linux host
I am using Linux (2.6.39 kernel) and trying to find a way that would allow me to send volume increment/decrement commands from my host Linux OS to the Jabra device. I saw this functionality is possible both in Windows and Ubuntu, where controlling of the volume from the PC alters the Jabra volume. I am able to accept Consumer HID