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Author SHA1 Message Date
hayodea f40225681c Update todo 2025-10-01 11:02:53 -04:00
hayodea e9e273c012 CMake: PRefix config opt with CONFIG_ 2025-10-01 11:02:28 -04:00
hayodea 942f9d8515 DevMgr: formatting 2025-10-01 10:21:32 -04:00
hayodea 1e22656299 DevMgr: Call uniq_ptr.release on DeviceReattacher 2025-10-01 10:19:08 -04:00
hayodea 80004ab1e7 CMake: Device Reattacher period is now 2000ms 2025-09-30 23:10:10 -04:00
hayodea 55fe2675df DevMgr: Use releaseQutexEarly 2025-09-30 22:53:17 -04:00
hayodea af19125ac2 Qutex: Add check for double-release() 2025-09-30 22:53:01 -04:00
hayodea eb7fe11de4 SerialAsyncContin/LockSet: add releaseQutexEarly() 
This method allows us to avoid double-release()ing qutexes when we
want to release a qutex early. If we don't use releaseQutexEarly(),
then inside of callOriginalCb when LockSet::release is called, the
Qutex will be release()d a second time.
 2025-09-30 22:47:54 -04:00
hayodea 7ddbde1a2f DevMgr:removeDASpec: Make serialized; acquire DevMgr qutex 2025-09-30 22:10:39 -04:00
hayodea ac3d97b3ec DevMgr:newDASpecInd: now lockvoked, acquires DevMgr qutex 
We now acquire the DevMgr qutex when doing the newDASpecInd async
op. The qutex is held across an async sequence with potentially
a real hardware blocking bottleneck.
 2025-09-30 22:01:34 -04:00
hayodea 274143e41d Formatting 2025-09-30 21:40:26 -04:00
hayodea d75430ef82 Qutex: Document the need to deal with early release()s 2025-09-30 21:25:58 -04:00
hayodea 06f3f2eebe DevMgr:attachAllUnattachedDevicesFromKnownListReq: acquire qutex 
We should acquire the qutex here before iterating through the list
of DA specs.
 2025-09-30 21:24:51 -04:00
hayodea 07609c6d6c SenseApiLib:Add isBeingDestroyed atomic flag for getter bailout 
Since we have no choice but to access the sh_ptr<SenseApiLib> for
a lib before we can get its Qutex, we use this flag to ensure that
we can know whether the SenseApiLib data structure and its Qutex
are still valid when we enter -- i.e, we ensure that the SenseApiLib
object wasn't destroyed under our feet.
 2025-09-30 21:01:00 -04:00
hayodea 1bad358921 DevMgr:at/detachSenseDevReq: release SenseApiMgr Qutex early 
Release it early when we no longer need it.
 2025-09-30 20:29:39 -04:00
hayodea 77e123ff4a DevMgr:at/detachSenseDevReq: acquire SenseApiMgr qutex 2025-09-30 19:53:57 -04:00
hayodea 9c3a8ea695 Indentation 2025-09-30 19:51:50 -04:00
hayodea 0ff86a0a5e SenseApiMgr: Add Qutex 2025-09-30 19:51:01 -04:00
hayodea 8ad5179a61 DevMgr:at/detachSenseDevReq: only acquire API lib lock 
We don't actually manipulate any of SenseApiMgr or DevMgr's state
so there's no need to acquire their locks.
 2025-09-30 19:47:23 -04:00
hayodea e600b0f96e DevMgr:at/detachSenseDevReq: acquire Api lib Qutex 2025-09-30 18:12:20 -04:00
hayodea b0d61c3e38 DevMgr:at/detachSenseDevReq: Acquire DevMgr Qutex 2025-09-30 14:22:51 -04:00
hayodea 296e517389 SerAsyncContin: Make LockSet vector constructor arg mandatory 2025-09-30 14:22:12 -04:00
hayodea 758586bb3c LockerAndInvoker: Move template method impls around 2025-09-30 14:07:13 -04:00
hayodea ccf0ab77bf Move SerializedAsyncContin template method impls into header 2025-09-30 13:59:07 -04:00
hayodea 774661e1f0 AsyncContinChainLink: Make getCallersContinuationShPtr() const 2025-09-30 13:59:07 -04:00
hayodea 33b61f429a LockSet: Move method impls into template header 2025-09-30 13:42:13 -04:00
hayodea 7ded9d287d Split comment into relevant locations 2025-09-30 13:27:06 -04:00
hayodea a55bcc2a03 LockerAndInvoker: better var naming 2025-09-30 10:43:30 -04:00
hayodea f15c07bc83 LockSet:tryAcquireOrBackoff use optional<ref_wrapper<Qutex>> 
Replace the previous Qutex** raw pointer with a std::optional.
 2025-09-30 10:36:19 -04:00
hayodea e3ce533fe4 Use optional for type-safe retval 2025-09-30 10:22:28 -04:00
hayodea 2075c0b797 Get Lval for sh_ptr and fix build error 2025-09-30 03:53:47 -04:00
hayodea 37b8cb0c7f Lockvoker: Take singleton by ref and not by copy 2025-09-30 03:53:24 -04:00
hayodea 4ed36eb88a LockerAndInvoker: Reorder this to silence warning 2025-09-30 03:52:37 -04:00
hayodea e53b0be7e2 Lockset: make locks vec public so LockerAndInvoker can access 2025-09-30 03:51:36 -04:00
hayodea e299e956e5 Move LockSet::release into header 2025-09-30 03:01:13 -04:00
hayodea ca9eae197f Lockvoker: Add registerInLockSet 
We now create the sh_ptr to the copy of a lockvoker object in its
own supplied register method. This enables us to retain type safety
when calling make_shared, by copying the most derived version of
the lockvoker object. Then we can pass in the LockerAndInvokerBase
to the rest of the call chain.
 2025-09-30 02:55:25 -04:00
hayodea 08122c086c LockSet:tryAcquireOrBackoff: should take Qutex**, not Qutex* 
No idea how this error survived in here for so long.
 2025-09-30 02:53:54 -04:00
hayodea cb8b13d0cd LockSet:release() Remove superfluous Lockvoker arg 
We decoupled unregistration from release() so we no longer need
to pass in a lockvoker to release().
 2025-09-30 02:17:46 -04:00
hayodea 46686db07e SerializedAsyncContin: LockSet should take Qutex, not SpinLock 
Apparently this error was here the whole time and it flew under
the radar.
 2025-09-30 02:12:04 -04:00
hayodea 97d93c670e Indentation 2025-09-30 01:15:30 -04:00
hayodea 9d77e8b345 SenseApiLib: Add qutex for lib state access serialization 2025-09-30 01:14:00 -04:00
hayodea 4bf19fda90 Get rid of rvalue ref returns 2025-09-30 00:37:54 -04:00
hayodea ed9635582f Lockvoker: add handleGridlock and invoke it 2025-09-30 00:32:54 -04:00
hayodea b7ff100499 VSCode config 2025-09-30 00:26:41 -04:00
hayodea d06ba8957a QtxAcqHistTracker: Implement complete algo; add depend graph 
The dependency graph class enables us to perform analysis on the
qutex acquisition history data. By generating the graph and
detecting cycles in it, we can find true gridlocks.

We use this graph analysis code to implement the algorithmically
complete version of the gridlock detector.
 2025-09-30 00:24:33 -04:00
hayodea 1aec779351 CMake: Conditionally build QtxAcquisitionHistTracker 2025-09-29 21:09:31 -04:00
hayodea 6baa0bb008 Silence build warning 2025-09-29 20:48:49 -04:00
hayodea 274edc1013 QtxHistTracker: Print message on heuristic gridlock find 2025-09-29 20:47:04 -04:00
hayodea c0eecf76d4 QtxAcqHistTracker: Add spinlock and use it 2025-09-29 20:34:56 -04:00
hayodea 2390042892 QtxAcqHistTracker: implement heuristic gridlock detector 2025-09-29 20:02:23 -04:00