The best replacement for semaphores is mutex.

The best alternatives to semaphores are rated as following:

★★★★★	mutex
★★★★	monitors
★★★	locks
★★	mutexes
★★	condition variables
	events

Your alternative for semaphores is not listed? Suggest!

Speaking about semaphores, one probably shouldn't forget about condition variables.

Other search terms related to semaphores and their ratings are:

★★★★★	condition variables
★★★	shared memory
★★	producer consumer
★	deadlocks

You have in mind a companion for semaphores and it is not yet here? Propose!

Google Trends

Scale is based on the average worldwide traffic of semaphores in all years. Click on graph for more.

semaphores

mutex

monitors