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(libc.info)POSIX Threads

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POSIX Threads
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   This chapter describes the pthreads (POSIX threads) library.  This
library provides support functions for multithreaded programs: thread
primitives, synchronization objects, and so forth.  It also implements
POSIX 1003.1b semaphores (not to be confused with System V semaphores).

   The threads operations (`pthread_*') do not use ERRNO.  Instead they
return an error code directly.  The semaphore operations do use ERRNO.

Basic Thread Operations

Creating, terminating, and waiting for threads.

Thread Attributes

Tuning thread scheduling.

Cancellation

Stopping a thread before it's done.

Cleanup Handlers

Deallocating resources when a thread is

canceled.

Mutexes

One way to synchronize threads.

Condition Variables

Another way.

POSIX Semaphores

And a third way.

Thread-Specific Data

Variables with different values in

different threads.

Threads and Signal Handling

Why you should avoid mixing the two, and

how to do it if you must.

Threads and Fork

Interactions between threads and the

`fork' function.

Streams and Fork

Interactions between stdio streams and

`fork'.

Miscellaneous Thread Functions

A grab bag of utility routines.