Editing Pthreads (section)

==Contents==
pthreads defines a set of [[C (programming language)|C]] programming language [[data type|types]], [[function (computer science)|functions]] and constants. It is implemented with a <code>pthread.h</code> header and a thread [[Library (computing)|library]].

There are around 100 threads procedures, all prefixed <code>pthread_</code> and they can be categorized into five groups:

*Thread management – creating, joining threads etc.
*[[Mutex]]es
*[[Condition variable]]s
*[[synchronization (computer science)|Synchronization]] between threads using [[Readers–writer lock|read write locks]] and [[Barrier (computer science)|barriers]]
*[[Spinlock]]s<ref>{{cite web |title=pthread.h(0p) — Linux manual page |url=https://www.man7.org/linux/man-pages/man0/pthread.h.0p.html |access-date=18 December 2022}}</ref>

The POSIX [[semaphore (programming)|semaphore]] API works with POSIX threads but is not part of the threads standard, having been defined in the ''POSIX.1b, Real-time extensions (IEEE Std 1003.1b-1993)'' standard. Consequently, the semaphore procedures are prefixed by <code>sem_</code> instead of <code>pthread_</code>.