POSIX real-time signals in Linux
Signals Signals are notifications delivered asynchronously to a process by the kernel. Signals are grouped in two categories. First, there are standard signals, which have been there since the early…
Signals Signals are notifications delivered asynchronously to a process by the kernel. Signals are grouped in two categories. First, there are standard signals, which have been there since the early…
Shared Memory Shared memory is an inter process communication (IPC) mechanism in Linux and other UNIX-like systems. Based on input parameters, the kernel provides a (shared) memory segment to the…
POSIX Threads Synchronization POSIX threads aka pthreads, provide multiple flows of execution within a process. The threads have their own stacks but share the global data and the heap. So…
POSIX threads A process is an execution environment in an operating system. A process has code and data segments which are initialized from a program during an exec system call.…
Semaphores Semaphores are used for synchronization of processes and threads. Semaphores are clubbed with message queues and shared memory under the Interprocess Communication (IPC) facilities in Unix-like systems such as…