)Hi,
I am developing an react-native app which uses bluetooth. But I see the iOS is killing my bluetooth-central intermittently.
And also my central does not receive disconnect delegate.
I am seeing power assertions from system.But thats the problem with react-native.It consumes significant power at the launch time.
I want to know if something can be done to maintain the bluetooth connection.My app (myBtApp) has enabled "bluetooth-central" in background mode.
I am attaching the console log for reference.
Mar 26 18:52:01 iPhone assertiond[67] <Notice>: [myBtApp:585] Setting up BG permission check timer for 180s
Mar 26 18:52:01 iPhone assertiond[67] <Notice>: [myBtApp:585] New process assertion state; preventSuspend, preventIdleSleep, preventSuspendOnSleep (assertion 0x10072dda0 added: (none); removed: preventThrottleDownUI, preventThrottleDownCPU)
Mar 26 18:52:01 iPhone Amazon[586] <Notice>: +[AIDelegateHelper callSelector:onDelegate:withObjects:] Calling delegate method recordMetric:withValue:withSource:isHighPriority:
Mar 26 18:52:01 iPhone Amazon[586] <Notice>: +[AIMAPiOSLib getAccountWithError:] getAccount API Called
Mar 26 18:52:01 iPhone Amazon[586] <Notice>: +[AIDelegateHelper callSelector:onDelegate:withObjects:] Calling delegate method recordMetric:withValue:withSource:isHighPriority:
Mar 26 18:52:01 iPhone Amazon[586] <Notice>: +[AITokenManager retrieveBlobWithKey:checkUpgrade:error:] Retrieved blob from storage
Mar 26 18:52:01 iPhone assertiond[67] <Notice>: [myBtApp:585] dump all assertions HWM:5 (CPUMON check): {
<BKProcessAssertion: 0x10086b750; "_UIRemoteKeyboard XPC disconnection" (finishTask:180s); id:\M-b\M^@\M-&6DD310F6A3EA> [active]
}
Mar 26 18:52:01 iPhone assertiond[67] <Notice>: [myBtApp:585] setpriority success for resource GPU to PRIO_DARWIN_GPU_DENY
Mar 26 18:52:01 iPhone assertiond[67] <Notice>: [myBtApp:585] setpriority success for resource CPU to PRIO_DARWIN_BG
Mar 26 18:52:01 iPhone assertiond[67] <Notice>: Updating PowerAssertion on myBtApp:585
Mar 26 18:52:01 iPhone assertiond[67] <Notice>: [myBtApp:585] Remove assertion: <BKProcessAssertion: 0x10072dda0; "FBSceneSnapshotAction:com.mydomain.myBtApp-stg" (finishTask:180s); id:\M-b\M^@\M-&EDF89AC45333>
Mar 26 18:52:01 iPhone Amazon[586] <Notice>: +[AIDelegateHelper callSelector:onDelegate:withObjects:] Calling delegate method recordMetric:withValue:withSource:isHighPriority:
Mar 26 18:52:01 iPhone Amazon[586] <Notice>: +[AIDelegateHelper callSelector:onDelegate:withObjects:] Calling delegate method recordMetric:withValue:withSource:isHighPriority:
Mar 26 18:52:01 iPhone assertiond[67] <Notice>: [myBtApp:585] Setting up BG permission check timer for 180s
Mar 26 18:52:01 iPhone assertiond[67] <Notice>: [myBtApp:585] dump all assertions HWM:5 (CPUMON check): {
<BKProcessAssertion: 0x10086b750; "_UIRemoteKeyboard XPC disconnection" (finishTask:180s); id:\M-b\M^@\M-&6DD310F6A3EA> [active]
}
Mar 26 18:52:01 iPhone assertiond[67] <Notice>: Updating PowerAssertion on myBtApp:585
Mar 26 18:52:01 iPhone assertiond[67] <Notice>: [myBtApp:585] Deactivate assertion: <BKProcessAssertion: 0x10086b750; "_UIRemoteKeyboard XPC disconnection" (finishTask:180s); id:\M-b\M^@\M-&6DD310F6A3EA>
Mar 26 18:52:01 iPhone assertiond[67] <Notice>: [myBtApp:585] no more active assertions, resetting _timedAssertionPermittedDuration, _timedAssertionReferenceTime, _timedAssertionDeadlineActive: NO
Mar 26 18:52:01 iPhone assertiond[67] <Notice>: [myBtApp:585] New process assertion state; (none) (assertion 0x10086b750 added: (none); removed: preventSuspend, preventIdleSleep, preventSuspendOnSleep)
Mar 26 18:52:01 iPhone assertiond[67] <Notice>: [myBtApp:585] suspend success
Mar 26 18:52:01 iPhone assertiond[67] <Notice>: [myBtApp:585] Setting jetsam priority to 0 [0]
Mar 26 18:52:01 iPhone assertiond[67] <Notice>: [myBtApp:585] pid_shutdown_sockets(1) success
Mar 26 18:52:01 iPhone assertiond[67] <Notice>: Releasing PowerAssertion on myBtApp:585 from update
Mar 26 18:52:01 iPhone assertiond[67] <Notice>: [myBtApp:585] Remove assertion: <BKProcessAssertion: 0x10086b750; "_UIRemoteKeyboard XPC disconnection" (finishTask:180s); id:\M-b\M^@\M-&6DD310F6A3EA>
Mar 26 18:52:01 iPhone assertiond[67] <Notice>: -[BKAssertion dealloc] - <0x10072de10>
Mar 26 18:52:01 iPhone assertiond[67] <Notice>: -[BKAssertion dealloc] - <0x100864420>
Mar 26 18:52:01 iPhone assertiond[67] <Notice>: -[BKAssertion dealloc] - <0x10072dda0>
Mar 26 18:52:01 iPhone assertiond[67] <Notice>: -[BKAssertion dealloc] - <0x10086b750>
Mar 26 18:52:01 iPhone Amazon[586] <Notice>: +[AITokenManager retrieveBlobWithKey:checkUpgrade:error:] Retrieved blob from storage
Mar 26 18:52:01 iPhone Amazon[586] <Notice>: +[AIDelegateHelper callSelector:onDelegate:withObjects:] Calling delegate method recordMetric:withValue:withSource:isHighPriority:
Mar 26 18:52:01 iPhone SpringBoard[56] <Notice>: Application process state changed for com.mydomain.myBtApp-stg: <SBApplicationProcessState: 0x1334ed1f0; pid: 585; taskState: Suspended; visibility: Background>
Mar 26 18:52:01 iPhone SpringBoard(WiFiPicker)[56] <Notice>: WIFI PICKER [com.mydomain.myBtApp-stg]: isProcessLaunch: 0, isForegroundActivation: 0, isForegroundDeactivation: 0
Mar 26 18:52:01 iPhone CommCenter[81] <Notice>: #I BundleID: <private> is no longer a foreground app
Mar 26 18:52:01 iPhone bluetoothd[79] <Notice>: State of application "com.mydomain.myBtApp-stg" is now "suspended"
Mar 26 18:52:01 iPhone IDSRemoteURLConnectionAgent[446] <Notice>: => Pid 585 suspended!
Mar 26 18:52:01 iPhone IDSRemoteURLConnectionAgent[446] <Notice>: PID: 585 was suspended
