There is more than one way to define “memory leak”. In particular, there are two primary definitions of “memory leak” that are in common usage among programmers. The first commonly used definition of “memory leak” is, “Memory was allocated and was not subsequently freed before the program terminated.” However, many programmers (rightly) argue that certain … Read more
If you want to run code on many platforms, go for Posix Threads. They are available almost everywhere and are quite mature. On the other hand if you only use Linux/gcc std::thread is perfectly fine – it has a higher abstraction level, a really good interface and plays nicely with other C++11 classes. The C++11 … Read more
It’s just the way that condition variables are (or were originally) implemented. The mutex is used to protect the condition variable itself. That’s why you need it locked before you do a wait. The wait will “atomically” unlock the mutex, allowing others access to the condition variable (for signalling). Then when the condition variable is … Read more
@Manuel was part way there. You can add the compiler option as well, like this: If you have CMake 3.1.0+, this becomes even easier: set(THREADS_PREFER_PTHREAD_FLAG ON) find_package(Threads REQUIRED) target_link_libraries(my_app PRIVATE Threads::Threads) If you are using CMake 2.8.12+, you can simplify this to: find_package(Threads REQUIRED) if(THREADS_HAVE_PTHREAD_ARG) target_compile_options(my_app PUBLIC “-pthread”) endif() if(CMAKE_THREAD_LIBS_INIT) target_link_libraries(my_app “${CMAKE_THREAD_LIBS_INIT}”) endif() Older CMake … Read more
Taken from http://en.wikipedia.org/wiki/Deadlock: In concurrent computing, a deadlock is a state in which each member of a group of actions, is waiting for some other member to release a lock A livelock is similar to a deadlock, except that the states of the processes involved in the livelock constantly change with regard to one another, … Read more
For Linux the correct command is: gcc -pthread -o term term.c In general, libraries should follow sources and objects on command line, and -lpthread is not an “option”, it’s a library specification. On a system with only libpthread.a installed, gcc -lpthread … will fail to link.