diff options
Diffstat (limited to 'core/java/android/os/Trace.java')
| -rw-r--r-- | core/java/android/os/Trace.java | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/core/java/android/os/Trace.java b/core/java/android/os/Trace.java index ed51818..0ca9183 100644 --- a/core/java/android/os/Trace.java +++ b/core/java/android/os/Trace.java @@ -44,6 +44,7 @@ public final class Trace { public static final long TRACE_TAG_AUDIO = 1L << 8; public static final long TRACE_TAG_VIDEO = 1L << 9; public static final long TRACE_TAG_CAMERA = 1L << 10; + private static final long TRACE_TAG_NOT_READY = 1L << 63; public static final int TRACE_FLAGS_START_BIT = 1; public static final String[] TRACE_TAGS = { @@ -53,11 +54,8 @@ public final class Trace { public static final String PROPERTY_TRACE_TAG_ENABLEFLAGS = "debug.atrace.tags.enableflags"; - // This works as a "not ready" flag because TRACE_TAG_ALWAYS is always set. - private static final long TRACE_FLAGS_NOT_READY = 0; - // Must be volatile to avoid word tearing. - private static volatile long sEnabledTags = TRACE_FLAGS_NOT_READY; + private static volatile long sEnabledTags = TRACE_TAG_NOT_READY; private static native long nativeGetEnabledTags(); private static native void nativeTraceCounter(long tag, String name, int value); @@ -99,7 +97,7 @@ public final class Trace { */ private static long cacheEnabledTags() { long tags = nativeGetEnabledTags(); - if (tags == TRACE_FLAGS_NOT_READY) { + if (tags == TRACE_TAG_NOT_READY) { Log.w(TAG, "Unexpected value from nativeGetEnabledTags: " + tags); // keep going } @@ -115,7 +113,7 @@ public final class Trace { */ public static boolean isTagEnabled(long traceTag) { long tags = sEnabledTags; - if (tags == TRACE_FLAGS_NOT_READY) { + if (tags == TRACE_TAG_NOT_READY) { tags = cacheEnabledTags(); } return (tags & traceTag) != 0; |