class RwLock
pub class RwLock<T>A value that readers share and a writer holds alone.
A writer that waits goes first: readers that come after it wait for it.
Methods
pub static fn new(value: T): RwLock<T>Creates a lock that holds value.
pub fn read<R, E :: [Error]>(body: fn(T) -> R throws E): R throws [E, Cancelled]Runs body with the value while no writer holds the lock — other readers may — and
returns what body returns.
Errors
Throws what body throws, and Cancelled when the task is cancelled during the wait.
pub fn write<R, E :: [Error]>(body: fn(&T) -> R throws E): R throws [E, Cancelled]Runs body while the running task alone holds the lock — no reader, no other writer — and
returns what body returns.
The body takes the value's place, as Mutex.lock's does.
Errors
Throws what body throws, and Cancelled when the task is cancelled during the wait.