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4 Commits (4c015dbb49fcfac25899f3ba7da4be665b5f9aab)
Author | SHA1 | Message | Date |
---|---|---|---|
Abseil Team | 5dd2407243 |
Export of internal Abseil changes
-- 60b8e77be4bab1bbd3b4c3b70054879229634511 by Derek Mauro <dmauro@google.com>: Use _MSVC_LANG for some C++ dialect checks since MSVC doesn't set __cplusplus accurately by default. https://devblogs.microsoft.com/cppblog/msvc-now-correctly-reports-__cplusplus/ See GitHub #722. PiperOrigin-RevId: 371362181 -- 5d736accdff04db0e722f377c0d79f2d3ed53263 by Martijn Vels <mvels@google.com>: Fix the estimated memory size for CordRepExternal PiperOrigin-RevId: 371350380 -- eaaa1d8a167aeca67a2aa3a098a2b61a9d72172f by Martijn Vels <mvels@google.com>: Remove flakes by not enforcing re-allocated pointers do never match original Tests that do multiple updates could end up with the original allocated pointer on a 2nd resize, so the 'EqIfPrivate' should not assume that if we do 'not' have the capacity that all following relocations will never match the original. We only care about 'pointer unchanged if private and there is capacity', trying to establish 'pointer changed at some point due to re-allocation; is pointless. PiperOrigin-RevId: 371338965 -- d1837bee6bade1902b095c1cbf64231668bb84c5 by Martijn Vels <mvels@google.com>: Undo inline of small data copy in cord This leads to a performance regression as the code is not inlined (absent hard FDO inputs), and there are no suitable tail call options. PiperOrigin-RevId: 371332332 -- 06dc64b833069efc7d18b11df607c8c22be690da by Martijn Vels <mvels@google.com>: Add final instrumentation for Cordz and remove 'old' cordz logic. This change instruments the last cord function for cordz. It removes the 'old' functions: set_tree, replace_tree, UpdateCordzStatistics and RecordMetrics. PiperOrigin-RevId: 371219909 -- a5e0be538579c603052feec03e6d9910c43ea787 by Martijn Vels <mvels@google.com>: Extend the life of CordRep* if inside a snapshot If a snapshot (potentially) includes the current CordzInfo, we need to extent the lifetime of the CordRep*, as the snapshot 'point in time' observation of the cord should ideally be preserved. PiperOrigin-RevId: 371146151 -- 74d77a89774cd6c8ecdeebee0193b294a39383d6 by Martijn Vels <mvels@google.com>: Instrument std::string consuming methods: ctor, operator=, Append and Prepend This change moves the 'steal into CordRep' logic into a separate function so we can use it directly in the ctor, operator assign and append and prepend, allowing Cordz instrumentation with the proper method attributes. The assign operator is implemented in AssignLargeString leaving the dispatch inlined in cord.h (which as a side effects also allows clean tail calls in the AssignLargeString method) PiperOrigin-RevId: 371094756 -- b39effc45266b7ce2e7f96caa3b16cb6e3acc2dd by Martijn Vels <mvels@google.com>: Add Cordz instrumentation to CordReader PiperOrigin-RevId: 370990181 GitOrigin-RevId: 60b8e77be4bab1bbd3b4c3b70054879229634511 Change-Id: I96af62e6f1a643e8b1228ae01e6c84e33706bb05 |
4 years ago |
Abseil Team | a5167f986b |
Export of internal Abseil changes
-- f6fbb03bff276e72123e8590519079e87732ae62 by Abseil Team <absl-team@google.com>: Replace static absl::Mutex with SpinLock in absl::Cords to avoid static initializers by absl::Mutex destructors PiperOrigin-RevId: 370694199 -- 654b7d9edfdc24f226990b2b46cbf91451a1d92a by Martijn Vels <mvels@google.com>: Implement global data for CordzInfo in an ODR hardened way This change puts the global data into a global list structure, and stores a reference to the global list in the handle itself. This hardens the implementation against ODR violations where info pointers are crossing dynamic library boundaries which are privately loaded. PiperOrigin-RevId: 370673045 -- 712dba768e66ee2ba85d6010829c617cd2af6ba7 by Martijn Vels <mvels@google.com>: Intrument Cord::operator= for Cordz PiperOrigin-RevId: 370659149 -- c0b347a2289e151b72680269332e264b8fa989c0 by Matt Kulukundis <kfm@google.com>: Fix test guards for ABSL_ATTRIBUTE_RETURNS_NONNULL PiperOrigin-RevId: 370594807 -- c2bedaa3472ef223f907de2604f9b9b58852ec5f by Martijn Vels <mvels@google.com>: Add new Cordz instrumentation on GetAppendRegion. PiperOrigin-RevId: 370587761 -- 84fbfcc852697d509f6094482b86e84743a6b331 by Martijn Vels <mvels@google.com>: Add instrumentation on Cord::Apppend(string_view) PiperOrigin-RevId: 370576590 -- 9e077390b8ca2239e1cb7bfbe1d5a04f2fc11d30 by Abseil Team <absl-team@google.com>: Google-internal changes only. PiperOrigin-RevId: 370558424 -- fb53c149eb2364ea34e3a67235f873866618b8ac by Matt Kulukundis <kfm@google.com>: Update config.h macros with a few useful helpers to simplify version checking PiperOrigin-RevId: 370557684 -- abf8142e99b9ff7e15f6528a357f1005461950b0 by Martijn Vels <mvels@google.com>: clang-format cord PiperOrigin-RevId: 370549371 -- e555985eabe63fcf0e980e9c433dd84caffec191 by Martijn Vels <mvels@google.com>: Add MaybeUntrackCord() function This function is near identical to the old UntrackCord() but allows info to be null, moving the cord.is_profiled() branch into CordzInfo. PiperOrigin-RevId: 370528447 -- 3883538efe4601f7864bda70a50d868bb383c63b by Derek Mauro <dmauro@google.com>: Internal change PiperOrigin-RevId: 370503186 -- a9514b65542fde1bc73584e6f3c1c4b3a05f215f by Derek Mauro <dmauro@google.com>: Add -Winvalid-constexpr to warning options for LLVM PiperOrigin-RevId: 370455171 -- d8a3966de2cf15a2dc28e17e49a3d27d205eca92 by Martijn Vels <mvels@google.com>: Add naive UniqueGenerator<T, kMaxValues, ...> to avoid flakes from dup random values. PiperOrigin-RevId: 370179772 -- 46d0caa1a12b68a5998d4f919e20f0f83b9286f8 by Martijn Vels <mvels@google.com>: Add new Cordz instrumentation on PrependTree. PiperOrigin-RevId: 370138969 GitOrigin-RevId: f6fbb03bff276e72123e8590519079e87732ae62 Change-Id: Ifa4c00a5c7b01198ee367a3253bea6b66612135e |
4 years ago |
Abseil Team | 732c6540c1 |
Export of internal Abseil changes
-- c7ce91501834b225bc9cf2d3fa2a319dd0b7f864 by Martijn Vels <mvels@google.com>: Implement global data for CordzHandle in an ODR hardened way This change puts the global data into a global delete queue structure, and stores a reference to the global data in the handle itself. This hardens the implementation against ODR violations where handles are crossing dynamic library boundaries which are privately loaded. PiperOrigin-RevId: 368885636 GitOrigin-RevId: c7ce91501834b225bc9cf2d3fa2a319dd0b7f864 Change-Id: I9775151a760b30989dec9517e4bcd2183e8c1651 |
4 years ago |
Abseil Team | e20fe888fa |
Export of internal Abseil changes
-- 341670bce317dd6af8d3c066970230591a47e80c by Martijn Vels <mvels@google.com>: Change GetStack() and GetParentStack() to return absl::Span PiperOrigin-RevId: 368765721 -- 6aaab9536d6957303c7aba100c3afaa6fb0ea2c8 by Martijn Vels <mvels@google.com>: Remove locking from parent stack. This change removes the need to lock all access to `parent_stack' by making the 'copy constructor' logic specify the 'copied from' CordzInfo (where available) to the TrackCord function, after which parent_stack is immutable. PiperOrigin-RevId: 368760630 -- b19e2059cada35a8ede994833018edac94de6ddc by Martijn Vels <mvels@google.com>: Add cordz instrumentation to Cord PiperOrigin-RevId: 368746225 -- 67b8bbf980f0f4e1db79aa32968e9a715a09b51a by Martijn Vels <mvels@google.com>: Create ABSL_INTERNAL_CORDZ_ENABLED define controlling when Cordz code is enabled There are specific builds and condtions under which we don't support cordz sampling, which is per this change represented by ABSL_INTERNAL_CORDZ_ENABLED being defined. PiperOrigin-RevId: 368731603 -- 8cbfe0e3169637a620f4b66ad2bc2ce340879cb0 by Martijn Vels <mvels@google.com>: Add a `rep` property to CordzInfo to be managed by Cord logic. This change adds a `rep` property to CordzInfo, which is intended to be used by collection logic. Mini design: Cord invokes TrackCord() providing the active 'root' cordrep of the newly sampled Cord, returning a CordzInfo with a weak (uncounted) reference to this root. Cord invokes `SetCordRep()` each time the root cordrep of the sampled Cord is updated while holding `mutex()`. Cord must also obtain `mutex()` _before_ removing a reference on the old root. i.e.: Cord must guarantee that the (weak) reference held in CordzInfo is at all times valid. CordzInfo collection code can then safely obtain a (reference counted) rep pointer by adding a reference to `rep_` while holding `mutex()`. This requires only a very brief critical section inside CordzInfo logic, minimizing contention with concurrent Cord updates. Cord code should typically obtain and hold `mutex()` for the entirety of each mutating Cord operation on a sampled cord. As Cord is thread compatible, it never competes on the lock with any other thread. The only possible concurrent access is from Cordz collection code, which should be a relatively rare event. PiperOrigin-RevId: 368673758 -- 1255120dce2bdd6b4205a34a0e555e0b74b6152f by Martijn Vels <mvels@google.com>: Remove 'depth' from active recorded metrics. Going forward we do not 'live' record depth (and size), but will observe these at collection time only. PiperOrigin-RevId: 368636572 -- 83e5146e35f221736b49e9f0a8805f8c159a51db by Martijn Vels <mvels@google.com>: Make cordz targets visible in OSS PiperOrigin-RevId: 368615010 -- dcb16a4f1239151f0a8c70a8cfeb29dabbd113b8 by Martijn Vels <mvels@google.com>: Internal cleanup PiperOrigin-RevId: 368514666 GitOrigin-RevId: 341670bce317dd6af8d3c066970230591a47e80c Change-Id: I94cecfbbd441eb386f99fc5186c468a7a5538862 |
4 years ago |