Fix for EXT-8089 (Log spam from SLPlugin about "autoreleased with no pool in place - just leaking")

Added slplugin-objc.mm.

Made SLPlugin do the cocoa setup during initialization, and create/delete an
autorelease pool each time through its main loop.  This should make plugin code
that's using autorelease correctly not leak.

Fixed a bug in the version of setupCocoa() used in the viewer (it was never
setting its "inited" variable).

indra/llplugin/slplugin/CMakeLists.txt

@@ -16,6 +16,7 @@ include_directories(
 if (DARWIN)
     include(CMakeFindFrameworks)
     find_library(CARBON_LIBRARY Carbon)
+    find_library(COCOA_LIBRARY Cocoa)
 endif (DARWIN)
 
 
@@ -25,6 +26,22 @@ set(SLPlugin_SOURCE_FILES
     slplugin.cpp
     )
 
+if (DARWIN)
+  list(APPEND SLPlugin_SOURCE_FILES
+    slplugin-objc.mm
+  )
+  list(APPEND SLPlugin_HEADER_FILES
+    slplugin-objc.h
+  )
+endif (DARWIN)
+
+set_source_files_properties(${SLPlugin_HEADER_FILES}
+                            PROPERTIES HEADER_FILE_ONLY TRUE)
+
+if (SLPlugin_HEADER_FILES)
+  list(APPEND SLPlugin_SOURCE_FILES ${SLPlugin_HEADER_FILES})
+endif (SLPlugin_HEADER_FILES)
+
 add_executable(SLPlugin
     WIN32
     MACOSX_BUNDLE
@@ -51,7 +68,7 @@ add_dependencies(SLPlugin
 
 if (DARWIN)
   # Mac version needs to link against Carbon
-  target_link_libraries(SLPlugin ${CARBON_LIBRARY})
+  target_link_libraries(SLPlugin ${CARBON_LIBRARY} ${COCOA_LIBRARY})
   # Make sure the app bundle has a Resources directory (it will get populated by viewer-manifest.py later)
   add_custom_command(
     TARGET SLPlugin POST_BUILD

indra/llplugin/slplugin/slplugin-objc.h

@@ -0,0 +1,40 @@
+/**
+ * @file slplugin-objc.h
+ * @brief Header file for slplugin-objc.mm.
+ *
+ * @cond
+ *
+ * $LicenseInfo:firstyear=2010&license=viewergpl$
+ *
+ * Copyright (c) 2010, Linden Research, Inc.
+ *
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlife.com/developers/opensource/gplv2
+ *
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at http://secondlife.com/developers/opensource/flossexception
+ *
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ *
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ *
+ * @endcond
+ */
+
+
+/* Defined in slplugin-objc.mm: */
+void setupCocoa();
+void createAutoReleasePool();
+void deleteAutoReleasePool();

indra/llplugin/slplugin/slplugin-objc.mm

@@ -0,0 +1,87 @@
+/**
+ * @file slplugin-objc.mm
+ * @brief Objective-C++ file for use with the loader shell, so we can use a couple of Cocoa APIs.
+ *
+ * @cond
+ *
+ * $LicenseInfo:firstyear=2010&license=viewergpl$
+ *
+ * Copyright (c) 2010, Linden Research, Inc.
+ *
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlife.com/developers/opensource/gplv2
+ *
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at http://secondlife.com/developers/opensource/flossexception
+ *
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ *
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ *
+ * @endcond
+ */
+
+
+#include <AppKit/AppKit.h>
+
+#include "slplugin-objc.h"
+
+
+void setupCocoa()
+{
+	static bool inited = false;
+	
+	if(!inited)
+	{
+		createAutoReleasePool();
+		
+		// The following prevents the Cocoa command line parser from trying to open 'unknown' arguements as documents.
+		// ie. running './secondlife -set Language fr' would cause a pop-up saying can't open document 'fr' 
+		// when init'ing the Cocoa App window.		
+		[[NSUserDefaults standardUserDefaults] setObject:@"NO" forKey:@"NSTreatUnknownArgumentsAsOpen"];
+		
+		// This is a bit of voodoo taken from the Apple sample code "CarbonCocoa_PictureCursor":
+		//   http://developer.apple.com/samplecode/CarbonCocoa_PictureCursor/index.html
+		
+		//	Needed for Carbon based applications which call into Cocoa
+		NSApplicationLoad();
+
+		//	Must first call [[[NSWindow alloc] init] release] to get the NSWindow machinery set up so that NSCursor can use a window to cache the cursor image
+		[[[NSWindow alloc] init] release];
+		
+		deleteAutoReleasePool();
+		
+		inited = true;
+	}
+}
+
+static NSAutoreleasePool *sPool = NULL;
+
+void createAutoReleasePool()
+{
+	if(!sPool)
+	{
+		sPool = [[NSAutoreleasePool alloc] init];
+	}
+}
+
+void deleteAutoReleasePool()
+{
+	if(sPool)
+	{
+		[sPool release];
+		sPool = NULL;
+	}
+}

indra/llplugin/slplugin/slplugin.cpp

@@ -44,6 +44,7 @@
 
 #if LL_DARWIN
 	#include <Carbon/Carbon.h>
+	#include "slplugin-objc.h"
 #endif
 
 #if LL_DARWIN || LL_LINUX
@@ -229,10 +230,19 @@ int main(int argc, char **argv)
 	signal(SIGSYS, &crash_handler);		// non-existent system call invoked
 #endif
 
+#if LL_DARWIN
+	setupCocoa();
+	createAutoReleasePool();
+#endif
+
 	LLPluginProcessChild *plugin = new LLPluginProcessChild();
 
 	plugin->init(port);
 
+#if LL_DARWIN
+		deleteAutoReleasePool();
+#endif
+
 	LLTimer timer;
 	timer.start();
 
@@ -260,6 +270,9 @@ int main(int argc, char **argv)
 #endif
 	while(!plugin->isDone())
 	{
+#if LL_DARWIN
+		createAutoReleasePool();
+#endif
 		timer.reset();
 		plugin->idle();
 #if LL_DARWIN
@@ -377,6 +390,10 @@ int main(int argc, char **argv)
 	// exception handler such as QuickTime.
 	//checkExceptionHandler();
 #endif
+
+#if LL_DARWIN
+		deleteAutoReleasePool();
+#endif
 	}
 
 	delete plugin;

indra/llwindow/llwindowmacosx-objc.mm

@@ -64,6 +64,8 @@ void setupCocoa()
 		[[[NSWindow alloc] init] release];
 
 		[pool release];
+		
+		inited = true;
 	}
 }