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This is an example of documentation generated by ZigDoc, an alternative to Zig's built-in Auto Doc feature. See also examples in other modes/formats. The project being documented here (as the example) is the Zig standard library. Private Function

fillRingBufferFromPutters

Doc Source

Private Function

std.Io.TypeErasedQueue.fillRingBufferFromPutters

fn fillRingBufferFromPutters(q: *TypeErasedQueue, io: Io) void

Called when there is nonzero space available in the ring buffer and potentially putters waiting. The mutex is already held and the task is to copy putter data to the ring buffer and signal any putters whose buffers been fully copied.

Params

q: *TypeErasedQueue
io: Io

File

Io.zig:2353

    fn fillRingBufferFromPutters(q: *TypeErasedQueue, io: Io) void {
        while (q.putters.popFirst()) |putter_node| {
            const putter: *Put = @alignCast(@fieldParentPtr("node", putter_node));
            while (q.puttableSlice()) |slice| {
                const copy_len = @min(slice.len, putter.remaining.len);
                assert(copy_len > 0);
                @memcpy(slice[0..copy_len], putter.remaining[0..copy_len]);
                q.len += copy_len;
                putter.remaining = putter.remaining[copy_len..];
                putter.needed -|= copy_len;
                if (putter.needed == 0) {
                    putter.condition.signal(io);
                    break;
                }
            } else {
                q.putters.prepend(putter_node);
                break;
            }
        }
    }