Mike J. Chen d8dbdf7ead Add service/aah_timesrv
This is a common time service used by Tungsten for synchronizing
distributed playback.

This is a squashed merge from master-tungsten of the following changes:

commit 43be3231034ff8537fdd84422a7954780038671f
Author: John Grossman <johngro@google.com>
Date:   Mon Jun 27 18:59:12 2011 -0700

    Move libaah_rtp over from the vendor directory.

    Also move factor PipeEvent out into utils.

    Change-Id: Id3877c66efe22d771cf3ef4877107e431b828e37

commit a148e2674b1d3cb73289b82b85c333f0a66824a9
Author: John Grossman <johngro@google.com>
Date:   Mon Jun 20 17:02:24 2011 -0700

    Move the A@H time service into frameworks/base

    Change-Id: I5c570cde70e8931e205516cb33517585804ce841

commit 86c94c7d6780fcfa4e1146325706fb78bc30544c
Author: Jason Simmons <jsimmons@google.com>
Date:   Mon Jun 20 15:44:31 2011 -0700

    Update the service manager UID table to match the new name of the common clock service

    Change-Id: I5a65e84e8dff743c69d182e9851e58fc68791564

commit 6ab14c34be8c1b10b1258bdebbba1e52743ff5b9
Author: Jason Simmons <jsimmons@google.com>
Date:   Fri Jun 3 18:19:40 2011 -0700

    Add tungsten_timesrv to init.rc

    Change-Id: I851aa990612440e1df1af992ed6e4d64b54a4951

Change-Id: Id832a0a00d447aa562bb7476902799bfa5bbda8d
Signed-off-by: Mike J. Chen <mjchen@google.com>
Signed-off-by: John Grossman <johngro@google.com>
2011-10-28 10:14:48 -04:00

81 lines
2.4 KiB
C++

/*
* Copyright (C) 2011 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 __DIAG_THREAD_H__
#define __DIAG_THREAD_H__
#include <utils/List.h>
#include <utils/threads.h>
namespace android {
class CommonClock;
class LocalClock;
class DiagThread : public Thread {
public:
DiagThread(CommonClock* common_clock, LocalClock* local_clock);
~DiagThread();
status_t startWorkThread();
void stopWorkThread();
virtual bool threadLoop();
void pushDisciplineEvent(int64_t observed_local_time,
int64_t observed_common_time,
int64_t nominal_common_time,
int32_t total_correction,
int32_t P_correction,
int32_t I_correction,
int32_t D_correction);
private:
typedef struct {
int64_t event_id;
int64_t action_local_time;
int64_t action_common_time;
int64_t observed_local_time;
int64_t observed_common_time;
int64_t nominal_common_time;
int32_t total_correction;
int32_t P_correction;
int32_t I_correction;
int32_t D_correction;
} DisciplineEventRecord;
bool openListenSocket();
void cleanupListenSocket();
void cleanupDataSocket();
void resetLogIDs();
CommonClock* common_clock_;
LocalClock* local_clock_;
int listen_fd_;
int data_fd_;
int64_t kernel_logID_basis_;
bool kernel_logID_basis_known_;
static const size_t kMaxDisciplineLogSize = 16;
Mutex discipline_log_lock_;
List<DisciplineEventRecord> discipline_log_;
int64_t discipline_log_ID_;
};
} // namespace android
#endif //__ DIAG_THREAD_H__