Juergen Kunz
f3e1c96872
Full-featured SIP router with multi-provider trunking, browser softphone via WebRTC, real-time Opus/G.722/PCM transcoding in Rust, RNNoise ML noise suppression, Kokoro neural TTS announcements, and a Lit-based web dashboard with live call monitoring and REST API.
72 lines
2.0 KiB
TypeScript
72 lines
2.0 KiB
TypeScript
/**
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* Unified RTP port pool — replaces the three separate allocators
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* in sipproxy.ts, calloriginator.ts, and webrtcbridge.ts.
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*
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* Allocates even-numbered UDP ports from a configured range.
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* Each allocation binds a dgram socket and returns it ready to use.
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*/
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import dgram from 'node:dgram';
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export interface IRtpAllocation {
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port: number;
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sock: dgram.Socket;
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}
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export class RtpPortPool {
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private min: number;
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private max: number;
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private allocated = new Map<number, dgram.Socket>();
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private log: (msg: string) => void;
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constructor(min: number, max: number, log: (msg: string) => void) {
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this.min = min % 2 === 0 ? min : min + 1; // ensure even start
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this.max = max;
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this.log = log;
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}
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/**
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* Allocate an even-numbered port and bind a UDP socket to it.
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* Returns null if the pool is exhausted.
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*/
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allocate(): IRtpAllocation | null {
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for (let port = this.min; port < this.max; port += 2) {
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if (this.allocated.has(port)) continue;
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const sock = dgram.createSocket('udp4');
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try {
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sock.bind(port, '0.0.0.0');
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} catch {
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try { sock.close(); } catch { /* ignore */ }
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continue;
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}
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this.allocated.set(port, sock);
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this.log(`[rtp-pool] allocated port ${port} (${this.allocated.size} in use)`);
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return { port, sock };
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}
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this.log('[rtp-pool] WARN: port pool exhausted');
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return null;
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}
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/**
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* Release a port back to the pool and close its socket.
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*/
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release(port: number): void {
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const sock = this.allocated.get(port);
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if (!sock) return;
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try { sock.close(); } catch { /* ignore */ }
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this.allocated.delete(port);
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this.log(`[rtp-pool] released port ${port} (${this.allocated.size} in use)`);
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}
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/** Number of currently allocated ports. */
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get size(): number {
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return this.allocated.size;
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}
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/** Total capacity (number of even ports in range). */
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get capacity(): number {
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return Math.floor((this.max - this.min) / 2);
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}
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}
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