From a18f644ce5eb4ab876b343e24ea613566c00058f Mon Sep 17 00:00:00 2001 From: Glenn Kasten Date: Tue, 18 Mar 2014 17:17:04 -0700 Subject: Add FastThreadState Change-Id: I3f07493375ace6e5cfdcd02ad90c4b6fad543b0c --- services/audioflinger/FastThreadState.h | 48 +++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 services/audioflinger/FastThreadState.h (limited to 'services/audioflinger/FastThreadState.h') diff --git a/services/audioflinger/FastThreadState.h b/services/audioflinger/FastThreadState.h new file mode 100644 index 0000000..148fb7b --- /dev/null +++ b/services/audioflinger/FastThreadState.h @@ -0,0 +1,48 @@ +/* + * Copyright (C) 2014 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef ANDROID_AUDIO_FAST_THREAD_STATE_H +#define ANDROID_AUDIO_FAST_THREAD_STATE_H + +#include +#include + +namespace android { + +// Represents a single state of a FastThread +struct FastThreadState { + FastThreadState(); + /*virtual*/ ~FastThreadState(); + + typedef uint32_t Command; + static const Command + INITIAL = 0, // used only for the initial state + HOT_IDLE = 1, // do nothing + COLD_IDLE = 2, // wait for the futex + IDLE = 3, // either HOT_IDLE or COLD_IDLE + EXIT = 4; // exit from thread + // additional values defined per subclass + Command mCommand; + + int32_t* mColdFutexAddr; // for COLD_IDLE only, pointer to the associated futex + unsigned mColdGen; // increment when COLD_IDLE is requested so it's only performed once + + NBLog::Writer* mNBLogWriter; // non-blocking logger +}; // struct FastThreadState + +} // android + +#endif // ANDROID_AUDIO_FAST_THREAD_STATE_H -- cgit v1.1