Fixes a race condition with multiple simultaneous get requests. (#1807)

* Fixes a race condition with multiple simultaneous get requests.

* Removed unused import

* Removed unused threading import

* Changed lock style to notation

* make style

Co-authored-by: WeberJulian <julian.weber@hotmail.fr>

TTS/server/server.py

@@ -5,6 +5,7 @@
 import os
 import sys
 from pathlib import Path
+from threading import Lock
 from typing import Union
 
 from flask import Flask, render_template, request, send_file
@@ -168,17 +169,21 @@ def details():
  )
 
 
+lock = Lock()
+
+
 @app.route("/api/tts", methods=["GET"])
 def tts():
- text = request.args.get("text")
- speaker_idx = request.args.get("speaker_id", "")
- style_wav = request.args.get("style_wav", "")
- style_wav = style_wav_uri_to_dict(style_wav)
- print(" > Model input: {}".format(text))
- print(" > Speaker Idx: {}".format(speaker_idx))
- wavs = synthesizer.tts(text, speaker_name=speaker_idx, style_wav=style_wav)
- out = io.BytesIO()
- synthesizer.save_wav(wavs, out)
+ with lock:
+ text = request.args.get("text")
+ speaker_idx = request.args.get("speaker_id", "")
+ style_wav = request.args.get("style_wav", "")
+ style_wav = style_wav_uri_to_dict(style_wav)
+ print(" > Model input: {}".format(text))
+ print(" > Speaker Idx: {}".format(speaker_idx))
+ wavs = synthesizer.tts(text, speaker_name=speaker_idx, style_wav=style_wav)
+ out = io.BytesIO()
+ synthesizer.save_wav(wavs, out)
  return send_file(out, mimetype="audio/wav")