Zig 0.17.0-dev (Split by item)

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deviceIoControl

Uring.deviceIoControl

fn deviceIoControl(
    ev: *Evented,
    sync: *CancelRegion.Sync,
    o: Io.Operation.DeviceIoControl,
) Io.Cancelable!i32

File

lib/std/Io/Uring.zig:2179

Code

fn deviceIoControl(
    ev: *Evented,
    sync: *CancelRegion.Sync,
    o: Io.Operation.DeviceIoControl,
) Io.Cancelable!i32 {
    _ = ev;
    while (true) {
        try sync.cancel_region.await(.nothing);
        const rc = linux.ioctl(o.file.handle, @bitCast(o.code), @intFromPtr(o.arg));
        switch (linux.errno(rc)) {
            .SUCCESS => return @bitCast(@as(u32, @truncate(rc))),
            .INTR => {},
            else => |err| return -@as(i32, @backingInt(err)),
        }
    }
}