In Xeneva, whole multitasking is built on concept of threads. Xeneva doesn’t know what is process or user application instead it only cares about thread which is currently using the cpu resource. In simple language, Thread is a smallest unit of execution in XenevaOS. Entire multi-tasking concept uses threads to do various task. The scheduler is the heart of XenevaOS and its multi-tasking feature. The scheduler is responsible for arranging and executing next threads after previous threads. It does so by creating, blocking-and-unblocking threads (a.k.a synchronization) and terminating unwanted threads.
Thread holds a special structure which stores the current cpu state, stack pointer, memory informations, ..etc.
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