"use strict"; /* * Async utility functions for the RSpade framework. * These functions handle asynchronous operations, delays, debouncing, and mutexes. */ // ============================================================================ // ASYNC UTILITIES // ============================================================================ /** * Pauses execution for specified milliseconds * @param {number} [milliseconds=0] - Delay in milliseconds (0 uses requestAnimationFrame) * @returns {Promise} Promise that resolves after delay * @example await sleep(1000); // Wait 1 second */ function sleep() { let milliseconds = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0; return new Promise(resolve => { if (milliseconds == 0 && requestAnimationFrame) { requestAnimationFrame(resolve); } else { setTimeout(resolve, milliseconds); } }); } /** * Creates a debounced function with exclusivity and promise fan-in * * This function, when invoked, immediately runs the callback exclusively. * For subsequent invocations, it applies a delay before running the callback exclusively again. * The delay starts after the current asynchronous operation resolves. * * If 'delay' is set to 0, the function will only prevent enqueueing multiple executions of the * same method more than once, but will still run them immediately in an exclusive sequential manner. * * The most recent invocation of the function will be the parameters that get passed to the function * when it invokes. * * The function returns a promise that resolves when the next exclusive execution completes. * * Usage as function: * const debouncedFn = debounce(myFunction, 250); * * Usage as decorator: * @debounce(250) * myMethod() { ... } * * @param {function|number} callback_or_delay The callback function OR delay when used as decorator * @param {number} delay The delay in milliseconds before subsequent invocations * @param {boolean} immediate if true, the first time the action is called, the callback executes immediately * @returns {function} A function that when invoked, runs the callback immediately and exclusively, * * @decorator */ function debounce(callback_or_delay, delay) { let immediate = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false; // Decorator usage: @debounce(250) or @debounce(250, true) // First argument is a number (the delay), returns decorator function if (typeof callback_or_delay === 'number') { const decorator_delay = callback_or_delay; const decorator_immediate = delay || false; // TC39 decorator form: receives (value, context) return function (value, context) { if (context.kind === 'method') { return debounce_impl(value, decorator_delay, decorator_immediate); } }; } // Function usage: debounce(fn, 250) // First argument is a function (the callback) const callback = callback_or_delay; return debounce_impl(callback, delay, immediate); } /** * Internal implementation of debounce logic * @private */ function debounce_impl(callback, delay) { let immediate = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false; let running = false; let queued = false; let last_end_time = 0; // timestamp of last completed run let timer = null; let next_args = []; let next_context = null; let resolve_queue = []; let reject_queue = []; const run_function = async () => { const these_resolves = resolve_queue; const these_rejects = reject_queue; const args = next_args; const context = next_context; resolve_queue = []; reject_queue = []; next_args = []; next_context = null; queued = false; running = true; try { const result = await callback.apply(context, args); for (const resolve of these_resolves) resolve(result); } catch (err) { for (const reject of these_rejects) reject(err); } finally { running = false; last_end_time = Date.now(); if (queued) { clearTimeout(timer); timer = setTimeout(run_function, Math.max(delay, 0)); } else { timer = null; } } }; return function () { for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) { args[_key] = arguments[_key]; } next_args = args; next_context = this; return new Promise((resolve, reject) => { resolve_queue.push(resolve); reject_queue.push(reject); // Nothing running and nothing scheduled if (!running && !timer) { const first_call = last_end_time === 0; if (immediate && first_call) { run_function(); return; } const since = first_call ? Infinity : Date.now() - last_end_time; if (since >= delay) { run_function(); } else { const wait = Math.max(delay - since, 0); clearTimeout(timer); timer = setTimeout(run_function, wait); } return; } // If we're already running or a timer exists, just mark queued. // The finally{} of run_function handles scheduling after full delay. queued = true; }); }; } // ============================================================================ // READ-WRITE LOCK FUNCTIONS - Delegated to ReadWriteLock class // ============================================================================ /** * Acquire an exclusive write lock by name. * Only one writer runs at a time; blocks readers until finished. * @param {string} name * @param {() => any|Promise} cb * @returns {Promise} */ function rwlock(name, cb) { return ReadWriteLock.acquire(name, cb); } /** * Acquire a shared read lock by name. * Multiple readers run in parallel, but readers are blocked by queued/active writers. * @param {string} name * @param {() => any|Promise} cb * @returns {Promise} */ function rwlock_read(name, cb) { return ReadWriteLock.acquire_read(name, cb); } /** * Forcefully clear all locks and queues for a given name. * @param {string} name */ function rwlock_force_unlock(name) { ReadWriteLock.force_unlock(name); } /** * Inspect lock state for debugging. * @param {string} name * @returns {{readers:number, writer_active:boolean, reader_q:number, writer_q:number}} */ function rwlock_pending(name) { return ReadWriteLock.pending(name); } //# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"names":["sleep","milliseconds","arguments","length","undefined","Promise","resolve","requestAnimationFrame","setTimeout","debounce","callback_or_delay","delay","immediate","decorator_delay","decorator_immediate","value","context","kind","debounce_impl","callback","running","queued","last_end_time","timer","next_args","next_context","resolve_queue","reject_queue","run_function","these_resolves","these_rejects","args","result","apply","err","reject","Date","now","clearTimeout","Math","max","_len","Array","_key","push","first_call","since","Infinity","wait","rwlock","name","cb","ReadWriteLock","acquire","rwlock_read","acquire_read","rwlock_force_unlock","force_unlock","rwlock_pending","pending"],"sources":["app/RSpade/Core/Js/async.js"],"sourcesContent":["/*\n * Async utility functions for the RSpade framework.\n * These functions handle asynchronous operations, delays, debouncing, and mutexes.\n */\n\n// ============================================================================\n// ASYNC UTILITIES\n// ============================================================================\n\n/**\n * Pauses execution for specified milliseconds\n * @param {number} [milliseconds=0] - Delay in milliseconds (0 uses requestAnimationFrame)\n * @returns {Promise<void>} Promise that resolves after delay\n * @example await sleep(1000); // Wait 1 second\n */\nfunction sleep(milliseconds = 0) {\n    return new Promise((resolve) => {\n        if (milliseconds == 0 && requestAnimationFrame) {\n            requestAnimationFrame(resolve);\n        } else {\n            setTimeout(resolve, milliseconds);\n        }\n    });\n}\n\n/**\n * Creates a debounced function with exclusivity and promise fan-in\n *\n * This function, when invoked, immediately runs the callback exclusively.\n * For subsequent invocations, it applies a delay before running the callback exclusively again.\n * The delay starts after the current asynchronous operation resolves.\n *\n * If 'delay' is set to 0, the function will only prevent enqueueing multiple executions of the\n * same method more than once, but will still run them immediately in an exclusive sequential manner.\n *\n * The most recent invocation of the function will be the parameters that get passed to the function\n * when it invokes.\n *\n * The function returns a promise that resolves when the next exclusive execution completes.\n *\n * Usage as function:\n *   const debouncedFn = debounce(myFunction, 250);\n *\n * Usage as decorator:\n *   @debounce(250)\n *   myMethod() { ... }\n *\n * @param {function|number} callback_or_delay The callback function OR delay when used as decorator\n * @param {number} delay The delay in milliseconds before subsequent invocations\n * @param {boolean} immediate if true, the first time the action is called, the callback executes immediately\n * @returns {function} A function that when invoked, runs the callback immediately and exclusively,\n *\n * @decorator\n */\nfunction debounce(callback_or_delay, delay, immediate = false) {\n    // Decorator usage: @debounce(250) or @debounce(250, true)\n    // First argument is a number (the delay), returns decorator function\n    if (typeof callback_or_delay === 'number') {\n        const decorator_delay = callback_or_delay;\n        const decorator_immediate = delay || false;\n\n        // TC39 decorator form: receives (value, context)\n        return function (value, context) {\n            if (context.kind === 'method') {\n                return debounce_impl(value, decorator_delay, decorator_immediate);\n            }\n        };\n    }\n\n    // Function usage: debounce(fn, 250)\n    // First argument is a function (the callback)\n    const callback = callback_or_delay;\n    return debounce_impl(callback, delay, immediate);\n}\n\n/**\n * Internal implementation of debounce logic\n * @private\n */\nfunction debounce_impl(callback, delay, immediate = false) {\n    let running = false;\n    let queued = false;\n    let last_end_time = 0; // timestamp of last completed run\n    let timer = null;\n\n    let next_args = [];\n    let next_context = null;\n    let resolve_queue = [];\n    let reject_queue = [];\n\n    const run_function = async () => {\n        const these_resolves = resolve_queue;\n        const these_rejects = reject_queue;\n        const args = next_args;\n        const context = next_context;\n\n        resolve_queue = [];\n        reject_queue = [];\n        next_args = [];\n        next_context = null;\n        queued = false;\n        running = true;\n\n        try {\n            const result = await callback.apply(context, args);\n            for (const resolve of these_resolves) resolve(result);\n        } catch (err) {\n            for (const reject of these_rejects) reject(err);\n        } finally {\n            running = false;\n            last_end_time = Date.now();\n            if (queued) {\n                clearTimeout(timer);\n                timer = setTimeout(run_function, Math.max(delay, 0));\n            } else {\n                timer = null;\n            }\n        }\n    };\n\n    return function (...args) {\n        next_args = args;\n        next_context = this;\n\n        return new Promise((resolve, reject) => {\n            resolve_queue.push(resolve);\n            reject_queue.push(reject);\n\n            // Nothing running and nothing scheduled\n            if (!running && !timer) {\n                const first_call = last_end_time === 0;\n\n                if (immediate && first_call) {\n                    run_function();\n                    return;\n                }\n\n                const since = first_call ? Infinity : Date.now() - last_end_time;\n                if (since >= delay) {\n                    run_function();\n                } else {\n                    const wait = Math.max(delay - since, 0);\n                    clearTimeout(timer);\n                    timer = setTimeout(run_function, wait);\n                }\n                return;\n            }\n\n            // If we're already running or a timer exists, just mark queued.\n            // The finally{} of run_function handles scheduling after full delay.\n            queued = true;\n        });\n    };\n}\n\n// ============================================================================\n// READ-WRITE LOCK FUNCTIONS - Delegated to ReadWriteLock class\n// ============================================================================\n\n/**\n * Acquire an exclusive write lock by name.\n * Only one writer runs at a time; blocks readers until finished.\n * @param {string} name\n * @param {() => any|Promise<any>} cb\n * @returns {Promise<any>}\n */\nfunction rwlock(name, cb) {\n    return ReadWriteLock.acquire(name, cb);\n}\n\n/**\n * Acquire a shared read lock by name.\n * Multiple readers run in parallel, but readers are blocked by queued/active writers.\n * @param {string} name\n * @param {() => any|Promise<any>} cb\n * @returns {Promise<any>}\n */\nfunction rwlock_read(name, cb) {\n    return ReadWriteLock.acquire_read(name, cb);\n}\n\n/**\n * Forcefully clear all locks and queues for a given name.\n * @param {string} name\n */\nfunction rwlock_force_unlock(name) {\n    ReadWriteLock.force_unlock(name);\n}\n\n/**\n * Inspect lock state for debugging.\n * @param {string} name\n * @returns {{readers:number, writer_active:boolean, reader_q:number, writer_q:number}}\n */\nfunction rwlock_pending(name) {\n    return 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