@debugmcp/mcp-debugger
Version:
Step-through debugging MCP server for LLMs
108 lines • 3.11 kB
JavaScript
/**
* Request tracking utility for managing DAP request timeouts
*/
export class RequestTracker {
pendingRequests = new Map();
defaultTimeoutMs;
constructor(defaultTimeoutMs = 30000) {
this.defaultTimeoutMs = defaultTimeoutMs;
}
/**
* Track a new request with timeout
*/
track(requestId, command, timeoutMs) {
// Clear any existing request with same ID
this.complete(requestId);
const timeout = timeoutMs ?? this.defaultTimeoutMs;
const timer = setTimeout(() => {
const request = this.pendingRequests.get(requestId);
if (request) {
this.pendingRequests.delete(requestId);
// Timeout callback would be handled by the worker
}
}, timeout);
this.pendingRequests.set(requestId, {
requestId,
command,
timer,
timestamp: Date.now()
});
}
/**
* Mark a request as completed and clear its timeout
*/
complete(requestId) {
const request = this.pendingRequests.get(requestId);
if (request) {
clearTimeout(request.timer);
this.pendingRequests.delete(requestId);
}
}
/**
* Clear all pending requests
*/
clear() {
for (const request of this.pendingRequests.values()) {
clearTimeout(request.timer);
}
this.pendingRequests.clear();
}
/**
* Get all pending requests
*/
getPending() {
return new Map(this.pendingRequests);
}
/**
* Get count of pending requests
*/
getPendingCount() {
return this.pendingRequests.size;
}
/**
* Check if a specific request is pending
*/
isPending(requestId) {
return this.pendingRequests.has(requestId);
}
/**
* Get elapsed time for a request
*/
getElapsedTime(requestId) {
const request = this.pendingRequests.get(requestId);
if (!request) {
return null;
}
return Date.now() - request.timestamp;
}
}
/**
* Enhanced request tracker with timeout callbacks
*/
export class CallbackRequestTracker extends RequestTracker {
onTimeout;
constructor(onTimeout, defaultTimeoutMs = 30000) {
super(defaultTimeoutMs);
this.onTimeout = onTimeout;
}
track(requestId, command, timeoutMs) {
// Clear any existing request with same ID
this.complete(requestId);
const timeout = timeoutMs ?? this.defaultTimeoutMs;
const timer = setTimeout(() => {
const request = this.pendingRequests.get(requestId);
if (request) {
this.pendingRequests.delete(requestId);
// Call the timeout handler
this.onTimeout(requestId, command);
}
}, timeout);
this.pendingRequests.set(requestId, {
requestId,
command,
timer,
timestamp: Date.now()
});
}
}
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