Multithread

A collection of modules for programming in multithreaded environments (obviously all thread safe).

Note

Provides some wrappers around POSIX multithread primitives (e.g., sem_t) which may seem unnecessary, BUT provides a small Platform Abstraction Layer (PAL) so that applications can use the same API on Linux, RTEMS, etc.

The multithread library is comprised of the following modules:

Module	Notes	Link
Memory pool	Used by threads to request/release memory chunks of a specified size. Useful in publisher-subscriber settings (e.g., swbus).	mpool
Binary semaphore	On linux: built out of a mutex and condv.	bsem
Condition variable	On linux: Wrapper around POSIX condition variables.	condv
Counting semaphore	On linux: wrapper around POSIX semaphores.	csem
Mutex	On linux: wrapper around POSIX mutexes.	mutex
Condition variable/mutex pair (cvm)	A single interface for using both, as they are frequently used together.	cvm
Producer-consumer queue	Can handle multiple producers and consumers	pcqueue
Fair reader/writer lock	A completely fair lock that guarantees that neither readers nor writers will starve.	rdwrlock
OpenMP modules	Implementations of 2D kernel convolution, radix sort	omp_kernel2d_convolve1(), omp_radix_sorter
Thread management tools	E.g., locking threads to a particular core.	N/A