83 lines
3.1 KiB
C++
83 lines
3.1 KiB
C++
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/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdint.h>
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#include <aah_timesrv/cc_helper.h>
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#include <aah_timesrv/ICommonClock.h>
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#include <utils/threads.h>
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namespace android {
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Mutex CCHelper::lock_;
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sp<ICommonClock> CCHelper::common_clock_;
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bool CCHelper::verifyClock_l() {
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if (common_clock_ == NULL) {
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common_clock_ = ICommonClock::getInstance();
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if (common_clock_ == NULL)
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return false;
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}
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return true;
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}
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// Helper methods which attempts to make calls to the common time binder
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// service. If the first attempt fails with DEAD_OBJECT, the helpers will
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// attempt to make a connection to the service again (assuming that the process
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// hosting the service had crashed and the client proxy we are holding is dead)
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// If the second attempt fails, or no connection can be made, the we let the
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// error propagate up the stack and let the caller deal with the situation as
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// best they can.
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#define CCHELPER_METHOD(decl, call) \
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status_t CCHelper::decl { \
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Mutex::Autolock lock(&lock_); \
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\
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if (!verifyClock_l()) \
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return DEAD_OBJECT; \
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\
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status_t status = common_clock_->call; \
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if (DEAD_OBJECT == status) { \
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common_clock_ = NULL; \
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if (!verifyClock_l()) \
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return DEAD_OBJECT; \
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status_t status = common_clock_->call; \
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} \
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\
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return status; \
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}
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#define VERIFY_CLOCK()
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CCHELPER_METHOD(isCommonTimeValid(bool* valid, uint32_t* timelineID),
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isCommonTimeValid(valid, timelineID))
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CCHELPER_METHOD(commonTimeToLocalTime(int64_t commonTime, int64_t* localTime),
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commonTimeToLocalTime(commonTime, localTime))
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CCHELPER_METHOD(localTimeToCommonTime(int64_t localTime, int64_t* commonTime),
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localTimeToCommonTime(localTime, commonTime))
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CCHELPER_METHOD(getCommonTime(int64_t* commonTime),
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getCommonTime(commonTime))
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CCHELPER_METHOD(getCommonFreq(uint64_t* freq),
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getCommonFreq(freq))
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CCHELPER_METHOD(getLocalTime(int64_t* localTime),
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getLocalTime(localTime))
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CCHELPER_METHOD(getLocalFreq(uint64_t* freq),
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getLocalFreq(freq))
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} // namespace android
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