From 6e657e64cdc478461c1e6a5e81c6d23115664326 Mon Sep 17 00:00:00 2001 From: Peter Maydell Date: Mon, 22 Apr 2013 10:29:46 +0000 Subject: [PATCH] cocoa: Fix leaks of NSScreen and NSConcreteMapTable MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On MacOSX 10.8 QEMU provokes system log messages: 11/03/2013 17:03:29.998 qemu-system-arm[42586]: objc[42586]: Object 0x7ffbf9c2f3b0 of class NSScreen autoreleased with no pool in place - just leaking - break on objc_autoreleaseNoPool() to debug 11/03/2013 17:03:29.999 qemu-system-arm[42586]: objc[42586]: Object 0x7ffbf9c3a010 of class NSConcreteMapTable autoreleased with no pool in place - just leaking - break on objc_autoreleaseNoPool() to debug This is because we call back into Cocoa from threads other than the UI thread (specifically from the CPU thread). Since we created these threads via the POSIX API rather than NSThread, they don't have automatically created autorelease pools. Guard all the functions where QEMU can call back into the Cocoa UI code with autorelease pools so that we don't leak any Cocoa objects. Signed-off-by: Peter Maydell Signed-off-by: Andreas Färber --- ui/cocoa.m | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/ui/cocoa.m b/ui/cocoa.m index 1971d9cb09..5d7a1e009e 100644 --- a/ui/cocoa.m +++ b/ui/cocoa.m @@ -960,6 +960,8 @@ int main (int argc, const char * argv[]) { static void cocoa_update(DisplayChangeListener *dcl, int x, int y, int w, int h) { + NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; + COCOA_DEBUG("qemu_cocoa: cocoa_update\n"); NSRect rect; @@ -973,18 +975,24 @@ static void cocoa_update(DisplayChangeListener *dcl, h * [cocoaView cdy]); } [cocoaView setNeedsDisplayInRect:rect]; + + [pool release]; } static void cocoa_switch(DisplayChangeListener *dcl, DisplaySurface *surface) { - COCOA_DEBUG("qemu_cocoa: cocoa_resize\n"); + NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; + COCOA_DEBUG("qemu_cocoa: cocoa_switch\n"); [cocoaView switchSurface:surface]; + [pool release]; } static void cocoa_refresh(DisplayChangeListener *dcl) { + NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; + COCOA_DEBUG("qemu_cocoa: cocoa_refresh\n"); if (kbd_mouse_is_absolute()) { @@ -1007,6 +1015,7 @@ static void cocoa_refresh(DisplayChangeListener *dcl) } } while(event != nil); graphic_hw_update(NULL); + [pool release]; } static void cocoa_cleanup(void)