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Infovision Labs
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Process synchronization like pipe, fifo, fork, mmap , vfork etc. Producer- consumer problem (coding) #include <mutex> #include <memory> #include <iostream> #include <thread> #include <string> using namespace std; #define NA -128 int queue[50] = {NA}; int index = 0; int front_index =0; std::mutex m; void consumer() { while(1) { unique_lock<std::mutex> lck(m); if(front_index >= 0) { // then consume front_index++; std::cout << queue[front_index] <<endl; queue[front_index] = NA; } else { break; } } } void producer() { while(1) { unique_lock<std::mutex> lck(m); // wait for input ...
LTI Mindtree Interview(Golang)
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Interview question sources :- https://www.educative.io/courses/mastering-concurrency-in-go What is a fork-join model? Write a program to fetch the common prefix in an array str1: ["flowbuilder", "flow", "flex"] output: "fl" if no common prefix print "" Types of channel in golang, what is buffered channel and unbuffered channel Write a go program to concurrently fetch data from multiple apis what is mutex?
IBM Coding challenge 1st round
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Question:- Write a simple/basic TCP proxy CLI app. Requirements C++20 Use only Boost::asio Bonus if using asio coroutines Should work/run on at least one platform (macOS or Linux or Windows) Should not use or do anything that prevents it from building/running on the other platforms A single cpp file is fine (or a few separate cpp/hpp if needed) Bonus if providing a cross-platform CMake/conan project As small and minimal coding as necessary to get the job done Usage ./proxy <listen_port> <target_address> <target_port> I should be able to point this to a webserver (port 80) and then just do a curl or telnet locally (on the listen_port) and get the content of the webpage: ./proxy 12345 www.boost.org 80 And then on a separate terminal: curl http://localhost:12345/ should give me the same as curl http://www.boost.org/: <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> <html><head> <title>301 Moved Permanently</title> </head>...