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modules/client/sync: Minor cleanup of condition statements.

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This commit is contained in:
Jason Volk 2019-07-12 14:02:42 -07:00
parent 393e4f32de
commit 6b54ab902e
1 changed files with 11 additions and 9 deletions
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20
modules/client/sync.cc
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@ -266,17 +266,17 @@ ircd::m::sync::handle_get(client &client,
const bool should_longpoll
{
// longpoll can be disabled by a conf item (for developers).
longpoll_enable &&
longpoll_enable
// polylog-phased sync and longpoll are totally exclusive.
!data.phased &&
&& !data.phased
// initial_sync cannot hang on a longpoll otherwise bad things clients
!initial_sync &&
&& !initial_sync
// When the since token is in advance of the vm sequence number
// there's no events to consider for a sync.
range.first > vm::sequence::retired
&& range.first > vm::sequence::retired
};
// Determine if linear sync mode should be used. If this is not used, and
@ -284,23 +284,25 @@ ircd::m::sync::handle_get(client &client,
const bool should_linear
{
// There is a conf item (for developers) to force polylog mode.
!polylog_only &&
!polylog_only
// polylog-phased sync and linear are totally exclusive.
!data.phased &&
&& !data.phased
// If longpoll was already determined there's no need for linear
!should_longpoll &&
&& !should_longpoll
// The primary condition for a linear sync is the number of events
// in the range being considered by the sync. That threshold is
// supplied by a conf item.
range.second - range.first <= size_t(linear_delta_max)
&& range.second - range.first <= size_t(linear_delta_max)
};
// Logical convenience boolean
// Determine if polylog sync mode should be used.
const bool should_polylog
{
// Polylog mode is only used when neither of the other two modes
// are determined.
!should_longpoll && !should_linear
};