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ircd:Ⓜ️:room::events: Add lower_bound to seek_idx() for relaxed seek.

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This commit is contained in:
Jason Volk 2021-02-10 22:26:00 -08:00
parent b39f574ba9
commit 53806a7973
2 changed files with 7 additions and 5 deletions
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2
include/ircd/m/room/events.h
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@ -68,7 +68,7 @@ struct ircd::m::room::events
explicit operator event::idx() const;
// Perform a new lookup / iterator
bool seek_idx(const event::idx &);
bool seek_idx(const event::idx &, const bool &lower_bound = false);
bool seek(const uint64_t &depth = -1);
bool seek(const event::id &);

10
matrix/room_events.cc
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@ -381,7 +381,8 @@ ircd::m::room::events::seek(const uint64_t &depth)
}
bool
ircd::m::room::events::seek_idx(const event::idx &event_idx)
ircd::m::room::events::seek_idx(const event::idx &event_idx,
const bool &lower_bound)
try
{
uint64_t depth(0);
@ -401,9 +402,10 @@ try
if(!bool(*this))
return false;
// Check if this event_idx is actually in this room
if(event_idx && event_idx != this->event_idx())
return false;
// When lower_bound=false we need to find the exact event being sought
if(event_idx && !lower_bound)
if(event_idx != this->event_idx())
return false;
return true;
}