Introduce AUv3 proxy connection as dedicated entity to manage ARA IPC…

… channel life time

ExamplesCommon/PlugInHosting/AudioUnitLoader.m

@@ -30,17 +30,26 @@
 #include "ARA_API/ARAAudioUnit_v3.h"
 #include "ARA_Library/Debug/ARADebug.h"
 #include "ARA_Library/IPC/ARAIPCAudioUnit_v3.h"
+#include "ARA_Library/IPC/ARAIPCProxyPlugIn.h"
 
 
+#if defined (__GNUC__)
+ _Pragma ("GCC diagnostic push")
+ _Pragma ("GCC diagnostic ignored \"-Wunguarded-availability\"")
+#endif
+
 struct _AudioUnitComponent
 {
  AudioComponent component;
 #if ARA_AUDIOUNITV3_IPC_IS_AVAILABLE
- const ARAFactory * ipcFactory; // cache - NULL until read via IPC
- ARAIPCMessageChannelRef factoryIPCChannelRef; // invalid until ipcFactory has been read via IPC
+ ARAIPCConnectionRef araProxy;
 #endif
 };
 
+#if defined (__GNUC__)
+ _Pragma ("GCC diagnostic pop")
+#endif
+
 
 struct _AudioUnitInstance
 {
@@ -65,7 +74,7 @@ AudioUnitComponent AudioUnitPrepareComponentWithIDs(OSType type, OSType subtype,
  AudioUnitComponent result = malloc(sizeof(struct _AudioUnitComponent));
  result->component = NULL;
 #if ARA_AUDIOUNITV3_IPC_IS_AVAILABLE
- result->ipcFactory = NULL;
+ result->araProxy = NULL;
 #endif
 
  AudioComponentDescription compDesc = { type, subtype, manufacturer, 0, 0 };
@@ -229,14 +238,16 @@ AudioUnitInstance AudioUnitOpenInstance(AudioUnitComponent audioUnitComponent, b
  {
  if (@available(macOS 13.0, *))
  {
- if (!audioUnitInstance->audioUnitComponent->ipcFactory)
+ if (!audioUnitInstance->audioUnitComponent->araProxy)
+ audioUnitInstance->audioUnitComponent->araProxy = ARAIPCAUProxyPlugInInitialize(audioUnitInstance->v3AudioUnit);
+ if (audioUnitInstance->audioUnitComponent->araProxy)
  {
- if ((audioUnitInstance->audioUnitComponent->factoryIPCChannelRef =
- ARAIPCAUProxyPlugInInitializeFactoryMessageChannel(audioUnitInstance->v3AudioUnit)))
- audioUnitInstance->audioUnitComponent->ipcFactory = ARAIPCAUProxyPlugInGetFactory(audioUnitInstance->audioUnitComponent->factoryIPCChannelRef);
+ *messageChannelRef = ARAIPCAUProxyPlugInGetMainMessageChannel(audioUnitInstance->audioUnitComponent->araProxy);
+
+ ARA_VALIDATE_API_CONDITION(ARAIPCProxyPlugInGetFactoriesCount(*messageChannelRef) == 1);
+ result = ARAIPCProxyPlugInGetFactoryAtIndex (*messageChannelRef, 0);
+ ARA_VALIDATE_API_CONDITION(result != NULL);
  }
- if ((result = audioUnitInstance->audioUnitComponent->ipcFactory))
- *messageChannelRef = audioUnitInstance->audioUnitComponent->factoryIPCChannelRef;
  }
  }
  else
@@ -542,7 +553,7 @@ void AudioUnitCloseInstance(AudioUnitInstance audioUnitInstance)
  if (@available(macOS 13.0, *))
  {
  if (audioUnitInstance->ipcInstance)
- ARAIPCAUProxyPlugInCleanupBinding(audioUnitInstance->ipcInstance);
+ ARAIPCProxyPlugInCleanupBinding(audioUnitInstance->ipcInstance);
  }
 #endif
  [audioUnitInstance->v3AudioUnit release];
@@ -555,8 +566,8 @@ void AudioUnitCleanupComponent(AudioUnitComponent audioUnitComponent)
 #if ARA_AUDIOUNITV3_IPC_IS_AVAILABLE
  if (@available(macOS 13.0, *))
  {
- if (audioUnitComponent->ipcFactory)
- ARAIPCAUProxyPlugInUninitializeFactoryMessageChannel(audioUnitComponent->factoryIPCChannelRef);
+ if (audioUnitComponent->araProxy)
+ ARAIPCAUProxyPlugInUninitialize(audioUnitComponent->araProxy);
  }
 #endif
 

TestPlugIn/AudioUnit_v3/Framework/TestAUv3AudioUnit.mm

@@ -24,6 +24,7 @@
 #import "ARATestDocumentController.h"
 
 #import "ARA_Library/IPC/ARAIPCAudioUnit_v3.h"
+#import "ARA_Library/IPC/ARAIPCProxyHost.h"
 
 
 #if ARA_AUDIOUNITV3_IPC_IS_AVAILABLE
@@ -282,7 +283,7 @@ void destroy_sharedFactoryMessageChannel() {
  {
  if (!_sharedFactoryMessageChannel)
  {
- ARA::IPC::ARAIPCAUProxyHostAddFactory(ARATestDocumentController::getARAFactory());
+ ARA::IPC::ARAIPCProxyHostAddFactory(ARATestDocumentController::getARAFactory());
  _sharedFactoryMessageChannel = [TestAUv3ARAIPCMessageChannel new];
  ARA::IPC::ARAIPCAUProxyHostInitialize(_sharedFactoryMessageChannel);
  }