You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
116 lines
4.5 KiB
116 lines
4.5 KiB
/*
|
|
* Copyright (C) 2017 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 AAUDIO_AAUDIO_ENDPOINT_MANAGER_H
|
|
#define AAUDIO_AAUDIO_ENDPOINT_MANAGER_H
|
|
|
|
#include <map>
|
|
#include <mutex>
|
|
#include <sys/types.h>
|
|
|
|
#include <android-base/thread_annotations.h>
|
|
#include <utils/Singleton.h>
|
|
|
|
#include "binding/AAudioServiceMessage.h"
|
|
#include "AAudioServiceEndpoint.h"
|
|
#include "AAudioServiceEndpointCapture.h"
|
|
#include "AAudioServiceEndpointMMAP.h"
|
|
#include "AAudioServiceEndpointPlay.h"
|
|
|
|
namespace aaudio {
|
|
|
|
class AAudioEndpointManager : public android::Singleton<AAudioEndpointManager> {
|
|
public:
|
|
AAudioEndpointManager();
|
|
~AAudioEndpointManager() = default;
|
|
|
|
/**
|
|
* Returns information about the state of the this class.
|
|
*
|
|
* Will attempt to get the object lock, but will proceed
|
|
* even if it cannot.
|
|
*
|
|
* Each line of information ends with a newline.
|
|
*
|
|
* @return a string with useful information
|
|
*/
|
|
std::string dump() const;
|
|
|
|
/**
|
|
* Find a service endpoint for the given deviceId, sessionId and direction.
|
|
* If an endpoint does not already exist then try to create one.
|
|
*
|
|
* @param audioService
|
|
* @param request
|
|
* @param sharingMode
|
|
* @return endpoint or null
|
|
*/
|
|
android::sp<AAudioServiceEndpoint> openEndpoint(android::AAudioService &audioService,
|
|
const aaudio::AAudioStreamRequest &request);
|
|
|
|
void closeEndpoint(android::sp<AAudioServiceEndpoint> serviceEndpoint);
|
|
|
|
private:
|
|
android::sp<AAudioServiceEndpoint> openExclusiveEndpoint(android::AAudioService &aaudioService,
|
|
const aaudio::AAudioStreamRequest &request,
|
|
sp<AAudioServiceEndpoint> &endpointToSteal);
|
|
|
|
android::sp<AAudioServiceEndpoint> openSharedEndpoint(android::AAudioService &aaudioService,
|
|
const aaudio::AAudioStreamRequest &request);
|
|
|
|
android::sp<AAudioServiceEndpoint> findExclusiveEndpoint_l(
|
|
const AAudioStreamConfiguration& configuration)
|
|
REQUIRES(mExclusiveLock);
|
|
|
|
android::sp<AAudioServiceEndpointShared> findSharedEndpoint_l(
|
|
const AAudioStreamConfiguration& configuration)
|
|
REQUIRES(mSharedLock);
|
|
|
|
void closeExclusiveEndpoint(android::sp<AAudioServiceEndpoint> serviceEndpoint);
|
|
void closeSharedEndpoint(android::sp<AAudioServiceEndpoint> serviceEndpoint);
|
|
|
|
// Use separate locks because opening a Shared endpoint requires opening an Exclusive one.
|
|
// That could cause a recursive lock.
|
|
// Lock mSharedLock before mExclusiveLock.
|
|
// it is OK to only lock mExclusiveLock.
|
|
mutable std::mutex mSharedLock;
|
|
std::vector<android::sp<AAudioServiceEndpointShared>> mSharedStreams
|
|
GUARDED_BY(mSharedLock);
|
|
|
|
mutable std::mutex mExclusiveLock;
|
|
std::vector<android::sp<AAudioServiceEndpointMMAP>> mExclusiveStreams
|
|
GUARDED_BY(mExclusiveLock);
|
|
|
|
// Counts related to an exclusive endpoint.
|
|
int32_t mExclusiveSearchCount GUARDED_BY(mExclusiveLock) = 0; // # SEARCHED
|
|
int32_t mExclusiveFoundCount GUARDED_BY(mExclusiveLock) = 0; // # FOUND
|
|
int32_t mExclusiveOpenCount GUARDED_BY(mExclusiveLock) = 0; // # OPENED
|
|
int32_t mExclusiveCloseCount GUARDED_BY(mExclusiveLock) = 0; // # CLOSED
|
|
int32_t mExclusiveStolenCount GUARDED_BY(mExclusiveLock) = 0; // # STOLEN
|
|
|
|
// Same as above but for SHARED endpoints.
|
|
int32_t mSharedSearchCount GUARDED_BY(mSharedLock) = 0;
|
|
int32_t mSharedFoundCount GUARDED_BY(mSharedLock) = 0;
|
|
int32_t mSharedOpenCount GUARDED_BY(mSharedLock) = 0;
|
|
int32_t mSharedCloseCount GUARDED_BY(mSharedLock) = 0;
|
|
|
|
// For easily disabling the stealing of exclusive streams.
|
|
static constexpr bool kStealingEnabled = true;
|
|
};
|
|
} /* namespace aaudio */
|
|
|
|
#endif //AAUDIO_AAUDIO_ENDPOINT_MANAGER_H
|