throw exception if voice is disconnected or canceled

CMakeLists.txt

@@ -15,6 +15,7 @@ FetchContent_GetProperties(certify)
 
 set(BOOST_INCLUDE_LIBRARIES thread filesystem system process asio endian logic static_string)
 set(BOOST_ENABLE_CMAKE ON)
+add_definitions(-DBOOST_BIND_GLOBAL_PLACEHOLDERS)
 
 FetchContent_Declare(Boost
       GIT_REPOSITORY https://github.com/boostorg/boost.git

Discord.C++/Exceptions.h

@@ -1,6 +1,6 @@
 #pragma once
 #include <exception>
-#include <iostream>
+#include <string>
 
 #ifdef _WIN32
 #define DLL_EXPORT __declspec(dllexport)
@@ -33,6 +33,16 @@ class ClientException : public DiscordException {
     DLL_EXPORT explicit ClientException(std::string what);
 };
 
+class DisconnectException : public DiscordException {
+   public:
+    DLL_EXPORT explicit DisconnectException(std::string what);
+};
+
+class CanceledException : public DiscordException {
+   public:
+    DLL_EXPORT explicit CanceledException(std::string what);
+};
+
 class SizeError : public DiscordException {
    public:
     DLL_EXPORT explicit SizeError(std::string what);

Discord.C++/VoiceClient.cpp

@@ -282,9 +282,9 @@ DiscordCPP::SharedFuture<void> DiscordCPP::VoiceClient::play(AudioSource* source
         }
 
         while (_ready && !_cancel_playing) {
-            if (source->read((char*)pcm_data, FRAME_SIZE * CHANNELS * 2) !=
-                true)
+            if (source->read((char*)pcm_data, FRAME_SIZE * CHANNELS * 2) != true) {
                 break;
+            }
 
             in_data = reinterpret_cast<opus_int16*>(pcm_data);
 
@@ -357,5 +357,12 @@ DiscordCPP::SharedFuture<void> DiscordCPP::VoiceClient::play(AudioSource* source
         delete[] pcm_data;
 
         _log.debug("finished playing audio");
+
+        if (!_ready) {
+            throw DisconnectException("disconnected from voice");
+        }
+        if (_cancel_playing) {
+            throw CanceledException("audio stream canceled");
+        }
     });
 }

Discord.C++/VoiceClient.h

@@ -85,7 +85,9 @@ class VoiceClient {
     DLL_EXPORT ~VoiceClient();
 
     /** play an AudioSource
-        @throws	OpusError	ClientException
+        @throws	OpusError			if the opus encode could not be initialized
+        @throws DisconnectException	if the client is disconnected from the voice channel
+        @throws CanceledException	if stop_playing() has been called
     */
     DLL_EXPORT SharedFuture<void> play(AudioSource* source);
     DLL_EXPORT void stop_playing();