Zig 0.17.0-dev (Split by item)

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lockUncancelable

RwLock.lockUncancelable

pub fn lockUncancelable(rl: *RwLock, io: Io) void

File

lib/std/Io/RwLock.zig:42

Code

pub fn lockUncancelable(rl: *RwLock, io: Io) void {
    _ = @atomicRmw(usize, &rl.state, .Add, writer, .seq_cst);
    rl.mutex.lockUncancelable(io);

    const state = @atomicRmw(usize, &rl.state, .Add, is_writing -% writer, .seq_cst);
    if (state & reader_mask != 0)
        rl.semaphore.waitUncancelable(io);
}