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construct/modules/client/sync/args.h

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C++

// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2019 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
namespace ircd::m::sync
{
struct args;
}
struct ircd::m::sync::args
{
static conf::item<milliseconds> timeout_max;
static conf::item<milliseconds> timeout_min;
static conf::item<milliseconds> timeout_default;
/// 6.2.1 The ID of a filter created using the filter API or a filter JSON object
/// encoded as a string. The server will detect whether it is an ID or a JSON object
/// by whether the first character is a "{" open brace. Passing the JSON inline is best
/// suited to one off requests. Creating a filter using the filter API is recommended
/// for clients that reuse the same filter multiple times, for example in long poll requests.
string_view filter_id;
/// Parse the since token string; this may be two numbers separated by '_'
/// or it may be one number, or none. defaults to '0' for initial_sync.
/// The second number is used as a next_batch value cookie we gave to
/// the client (used during phased polylog sync)
std::pair<string_view, string_view> since_token;
/// 6.2.1 A point in time to continue a sync from.
uint64_t since;
/// This is the raw (non-spec) next_batch token which can be supplied by
/// the client as an upper-bound on the window of this sync operation.
/// If this is non-empty, the value takes precedence and will be strictly
/// adhered to. Otherwise, the next_batch below may be computed by the
/// server and may be violated on longpolls.
string_view next_batch_token;
/// This is named the same as the next_batch response value passed to the
/// client at the conclusion of the sync operation because it will literally
/// pass through this value. The next sync operation will then start at this
/// value. This token is an event_idx, like the since token. Note it may point
/// to an event that does not yet exist past-the-end.
uint64_t next_batch;
/// The point in time at which this /sync should stop longpolling and return
/// an empty'ish response to the client.
system_point timesout;
/// 6.2.1 Controls whether to include the full state for all rooms the user is a member of.
/// If this is set to true, then all state events will be returned, even if since is non-empty.
/// The timeline will still be limited by the since parameter. In this case, the timeout
/// parameter will be ignored and the query will return immediately, possibly with an
/// empty timeline. If false, and since is non-empty, only state which has changed since
/// the point indicated by since will be returned. By default, this is false.
bool full_state;
/// 6.2.1 Controls whether the client is automatically marked as online by polling this API.
/// If this parameter is omitted then the client is automatically marked as online when it
/// uses this API. Otherwise if the parameter is set to "offline" then the client is not
/// marked as being online when it uses this API. One of: ["offline"]
bool set_presence;
/// (non-spec) Controls whether to enable phased-polylog-initial-sync, also
/// known as Crazy-Loading. This is enabled by default, but a query string
/// of `?phased=0` will disable it for synapse-like behavior.
bool phased;
/// (non-spec) If this is set to true, the only response content from /sync
/// will be a `next_batch` token. This is useful for clients that only want
/// to use /sync as a semaphore notifying about new activity, but will
/// retrieve the actual data another way.
bool semaphore;
/// Constructed by the GET /sync request method handler on its stack.
args(const resource::request &request);
};