Advanced · Module 11 · Lesson 1 of 6

Launching and Joining Threads

Launch threads from five callable forms and join every thread, so ownership, argument passing and lifetime stay correct from the first program.

ProAbout 9 minutes

By the end you can

Launch threads from function pointers, lambdas, functors and member functions
Join every thread and explain detached lifetime risks
Pass arguments by value or reference wrapper without dangling state

Builds on Project: A Movable Task Type.

01 · A question first

A log server handles five clients at once. Each request runs the same counter loop, started from a different callable form, while main waits at a barrier and releases resources only after the last worker returns. Which call starts a thread, who waits for whom, and what happens when main forgets to wait?

Make a guess before you read on.

02 · The idea

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What's inside

Why launch has to be explicit
The five callable forms
Lifetime and order
A crew in a vector
Errors that end programs
Original cast examples
Where it is used and what comes next