Zig 0.17.0-dev (Split by item)

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deviceIoControl

Dispatch.deviceIoControl

fn deviceIoControl(o: *const Io.Operation.DeviceIoControl) Io.Cancelable!i32

File

lib/std/Io/Dispatch.zig:1889

Code

fn deviceIoControl(o: *const Io.Operation.DeviceIoControl) Io.Cancelable!i32 {
    while (true) {
        const rc = c.ioctl(o.file.handle, @bitCast(o.code), @intFromPtr(o.arg));
        switch (c.errno(rc)) {
            .SUCCESS => return rc,
            .INTR => {},
            else => |err| return -@as(i32, @backingInt(err)),
        }
    }
}