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/* Copyright 2012-present Facebook, Inc.
* Licensed under the Apache License, Version 2.0 */
#include "watchman.h"
void watchman_root::considerAgeOut() {
time_t now;
if (gc_interval == 0) {
return;
}
time(&now);
if (now <= view()->getLastAgeOutTimeStamp() + gc_interval) {
// Don't check too often
return;
}
performAgeOut(std::chrono::seconds(gc_age));
}
void watchman_root::performAgeOut(std::chrono::seconds min_age) {
// Find deleted nodes older than the gc_age setting.
// This is particularly useful in cases where your tree observes a
// large number of creates and deletes for many unique filenames in
// a given dir (eg: temporary/randomized filenames generated as part
// of build tooling or atomic renames)
w_perf_t sample("age_out");
view()->ageOut(sample, std::chrono::seconds(min_age));
// Age out cursors too.
{
auto cursors = inner.cursors.wlock();
auto it = cursors->begin();
while (it != cursors->end()) {
if (it->second < view()->getLastAgeOutTickValue()) {
it = cursors->erase(it);
} else {
++it;
}
}
}
if (sample.finish()) {
sample.add_root_meta(shared_from_this());
sample.log();
}
}
/* vim:ts=2:sw=2:et:
*/
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