+#include "disk_space_estimator.h"
+
+#include <stdio.h>
#include <sys/stat.h>
-#include <sys/types.h>
-#include <sys/vfs.h>
-#include <unistd.h>
+#include <sys/statfs.h>
+#include <memory>
-#include "disk_space_estimator.h"
+#include "metrics.h"
#include "timebase.h"
DiskSpaceEstimator::DiskSpaceEstimator(DiskSpaceEstimator::callback_t callback)
: callback(callback)
{
+ global_metrics.add("disk_free_bytes", &metric_disk_free_bytes, Metrics::TYPE_GAUGE);
}
void DiskSpaceEstimator::report_write(const std::string &filename, uint64_t pts)
return;
}
+ off_t free_bytes = off_t(fst.f_bavail) * fst.f_frsize;
+ metric_disk_free_bytes = free_bytes;
+
if (!measure_points.empty()) {
- off_t free_bytes = off_t(fst.f_bavail) * fst.f_frsize;
double bytes_per_second = double(st.st_size - measure_points.front().size) /
(pts - measure_points.front().pts) * TIMEBASE;
double seconds_left = free_bytes / bytes_per_second;
- callback(free_bytes, seconds_left);
+
+ // Only report every second, since updating the UI can be expensive.
+ if (last_pts_reported == 0 || pts - last_pts_reported >= TIMEBASE) {
+ callback(free_bytes, seconds_left);
+ last_pts_reported = pts;
+ }
}
measure_points.push_back({ pts, st.st_size });