Changeset 196712 in webkit

Timestamp:

Feb 17, 2016, 12:27:56 PM (10 years ago)

Author:

akling@apple.com

Message:

[iOS] Purge GraphicsServices font cache on memory warning.
<​https://webkit.org/b/154343>

Reviewed by Antti Koivisto.

The GS font cache was holding on to the last retain on CSS fonts after they stop being used.
Call SPI to purge it on memory pressure.

• platform/cocoa/MemoryPressureHandlerCocoa.mm:

(WebCore::MemoryPressureHandler::platformReleaseMemory):

• platform/spi/ios/GraphicsServicesSPI.h:

Location:

trunk/Source/WebCore

Files:

• ChangeLog (modified) (1 diff)
• platform/cocoa/MemoryPressureHandlerCocoa.mm (modified) (2 diffs)
• platform/spi/ios/GraphicsServicesSPI.h (modified) (1 diff)

trunk/Source/WebCore/ChangeLog

@@ +1 @@
+2016-02-17  Andreas Kling  <akling@apple.com>
+
+        [iOS] Purge GraphicsServices font cache on memory warning.
+        <https://webkit.org/b/154343>
+
+        Reviewed by Antti Koivisto.
+
+        The GS font cache was holding on to the last retain on CSS fonts after they stop being used.
+        Call SPI to purge it on memory pressure.
+
+        * platform/cocoa/MemoryPressureHandlerCocoa.mm:
+        (WebCore::MemoryPressureHandler::platformReleaseMemory):
+        * platform/spi/ios/GraphicsServicesSPI.h:
+
 2016-02-17  Chris Dumez  <cdumez@apple.com>
 

trunk/Source/WebCore/platform/cocoa/MemoryPressureHandlerCocoa.mm

@@ -41 +41 @@
 
 #if PLATFORM(IOS)
+#import "GraphicsServicesSPI.h"
 #import "SystemMemory.h"
 #import "WebCoreThread.h"
@@ -66 +67 @@
         ReliefLogger log("Drain IOSurfacePool");
         IOSurfacePool::sharedPool().discardAllSurfaces();
+    }
+#endif
+
+#if PLATFORM(IOS)
+    {
+        ReliefLogger log("Purging GraphicsServices font cache");
+        GSFontPurgeFontCache();
     }
 #endif

trunk/Source/WebCore/platform/spi/ios/GraphicsServicesSPI.h

@@ -42 +42 @@
 uint64_t GSCurrentEventTimestamp(void);
 CFStringRef GSSystemRootDirectory(void);
+void GSFontPurgeFontCache(void);
 
 WTF_EXTERN_C_END