RwLock

class RwLock

use thread::{RwLock};

A readers-writer lock that owns a value, made by rwlock.

Many readers (with_read, try_read) or one writer (with_write, try_write) at a time. Like Mutex, the handle can be passed to other threads.

Examples#

use thread::{rwlock, with_read, with_write, RwLock};
use tests::assert;
let lock: RwLock = match rwlock(1) {
    Result::Ok(l) => l,
    Result::Err(_) => panic "rwlock failed",
};
let _ = with_write(lock, fn (int n) => (n + 1, 0));
let seen = match with_read(lock, fn (int n) => n) {
    Result::Ok(n) => n,
    Result::Err(_) => -1,
};
assert!(seen == 2);

See also#

• thread::rwlock
• thread::with_read
• thread::try_read
• thread::with_write
• thread::try_write
• thread::Mutex
• Thread: A handle to a function running on another OS thread, from spawn.
• Sender: The sending half of a channel made by channel.