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use crate::segment::common::memory_usage::{ComponentMemoryUsage, FileStorageIntent, MemoryReporter};
use crate::segment::id_tracker::id_tracker_base::{IdTracker as _, IdTrackerEnum};
impl MemoryReporter for IdTrackerEnum {
fn memory_usage(&self) -> ComponentMemoryUsage {
match self {
IdTrackerEnum::MutableIdTracker(tracker) => {
// All mappings and versions live in RAM.
// Files are append-only logs for persistence only.
ComponentMemoryUsage::from_files_and_ram(
tracker.files(),
FileStorageIntent::OnDisk,
tracker.ram_usage_bytes() as u64,
)
}
IdTrackerEnum::ImmutableIdTracker(tracker) => {
// All mappings and versions are loaded into compressed
// in-memory structures. Mmap files are for persistence.
ComponentMemoryUsage::from_files_and_ram(
tracker.files(),
FileStorageIntent::OnDisk,
tracker.ram_usage_bytes() as u64,
)
}
IdTrackerEnum::InMemoryIdTracker(tracker) => {
// Purely in-memory, no files.
ComponentMemoryUsage::ram_only(tracker.ram_usage_bytes() as u64)
}
IdTrackerEnum::DiskIdTracker(tracker) => {
// Mapping stays on disk; only versions + the deleted bitvec are resident.
ComponentMemoryUsage::from_files_and_ram(
tracker.files(),
FileStorageIntent::OnDisk,
tracker.ram_usage_bytes() as u64,
)
}
}
}
}