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[run_set] use lower_bound to skip preceeding entries more quickly.

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This commit is contained in:
Joe Thornber 2013-07-09 13:55:21 +01:00
parent f2fe3ba2b3
commit fa657beff6
1 changed files with 4 additions and 3 deletions
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7
persistent-data/run_set.h
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@ -28,10 +28,11 @@ namespace base {
run<T> r(r_); run<T> r(r_);
if (runs_.size()) { if (runs_.size()) {
// Correct but slow
const_iterator it = runs_.cbegin();
// Skip all blocks that end before r // Skip all blocks that end before r
const_iterator it = runs_.lower_bound(r);
if (it != runs_.begin())
--it;
while (it != runs_.end() && it->end_ < r.begin_) while (it != runs_.end() && it->end_ < r.begin_)
++it; ++it;