Previous: Networking Up: Contents Next: Operating system

Arc: Atomic operations

Atomic operations

Foundation atomic-invoke function
Invokes function, making sure that only one thread at a time invokes something wrapped inside an atomic-invoke.

>(atomic-invoke (fn () "critical section" (+ 1 2))) 3

Macro atomic [body ...]
Executes the body statements atomically. The body is wrapped in atomic-invoke to ensure that only one such body can execute at a time.

>(atomic (pr "hello")) hello "hello"

Macro atlet var value [body ...]
Atomic version of let. The value is assigned to var, and the body is executed, all inside atomic.

Macro atwith args

Macro atwiths args

atomic-invoke function Invokes function, making sure that only one thread at a time invokes something wrapped inside an atomic-invoke.	>(atomic-invoke (fn () "critical section" (+ 1 2))) 3
atomic [body ...] Executes the body statements atomically. The body is wrapped in `atomic-invoke` to ensure that only one such body can execute at a time.	>(atomic (pr "hello")) hello "hello"
atlet var value [body ...] Atomic version of `let`. The value is assigned to var, and the body is executed, all inside `atomic`.
atwith args
atwiths args