graphlite 0.0.1

GraphLite - A lightweight ISO GQL Graph Database
Documentation 
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// Copyright (c) 2024-2025 DeepGraph Inc.
// SPDX-License-Identifier: Apache-2.0
//
//! Lock wait time tracking for query execution

use std::sync::{Mutex, RwLock};
use std::time::Duration;

/// Lock tracker
#[derive(Debug, Clone)]
pub struct LockTracker {}

impl LockTracker {
    pub fn new() -> Self {
        Self {}
    }

    #[allow(dead_code)] // ROADMAP v0.6.0 - Lock contention tracking for performance observability
    pub fn track_operation<T, F>(&self, operation: F) -> T
    where
        F: FnOnce() -> T,
    {
        operation()
    }

    #[allow(dead_code)] // ROADMAP v0.6.0 - Lock wait time measurement for query profiling
    pub fn execute_with_lock_tracking<T, F>(&self, operation: F) -> T
    where
        F: FnOnce() -> T,
    {
        operation()
    }

    #[allow(dead_code)] // ROADMAP v0.6.0 - Accumulate lock wait durations for metrics
    pub fn add_lock_wait_time(&self, _duration: Duration) {}

    #[allow(dead_code)] // ROADMAP v0.6.0 - Total lock wait time reporting for diagnostics
    pub fn get_total_lock_wait_time(&self) -> Duration {
        Duration::from_secs(0)
    }
}

impl Default for LockTracker {
    fn default() -> Self {
        Self::new()
    }
}

// Stub types for TrackedLock and TrackedRwLock
#[allow(dead_code)] // ROADMAP v0.6.0 - Lock wrapper with performance tracking instrumentation
pub type TrackedLock<T> = Mutex<T>;
#[allow(dead_code)] // ROADMAP v0.6.0 - RwLock wrapper with read/write lock metrics
pub type TrackedRwLock<T> = RwLock<T>;