Reviewed By: simonmar Differential Revision: D14467207 fbshipit-source-id: 4c3f551034c2f253a0c8bfff47e0dbc170131255
2.8 KiB
Changes in version 2.1.1.0
- Adds feature to track outgone datasource fetches. This is only turned on for report level greater than 1. The fetches are stored as a running Map in the env ('submittedReqsRef').
Changes in version 2.1.0.0
-
Add a new 'w' parameter to 'GenHaxl' to allow arbitrary writes during a computation. These writes are stored as a running log in the Env, and are not memoized. This allows users to extract information from a Haxl computation which throws. Our advise is to limit these writes to monitoring and debugging logs.
-
A 'WriteTree' constructor to maintain log of writes inside the Environment. This is defined to allow O(1) mappend.
Changes in version 2.0.1.1
- Support for GHC 8.6.1
- Bugfixes
Changes in version 2.0.1.0
- Exported MemoVar from Haxl.Core.Memo
- Updated the facebook example
- Fixed some links in the documentation
- Bump some version bounds
Changes in version 2.0.0.0
-
Completely rewritten internals to support arbitrarily overlapping I/O and computation. Haxl no longer runs batches of I/O in "rounds", waiting for all the I/O to complete before resuming the computation. In Haxl 2, we can spawn I/O that returns results in the background and computation fragments are resumed when the values they depend on are available. See
tests/FullyAsyncTest.hs
for an example. -
A new
PerformFetch
constructor supports the new concurrency features:BackgroundFetch
. The data source is expected to callputResult
in the background on eachBlockedFetch
when its result is ready. -
There is a generic
DataSource
implementation inHaxl.DataSource.ConcurrentIO
for performing each I/O operation in a separate thread. -
Lots of cleanup and refactoring of the APIs.
-
License changed from BSD+PATENTS to plain BSD3.
Changes in version 0.5.1.0
- 'pAnd' and 'pOr' were added
- 'asyncFetchAcquireRelease' was added
- 'cacheResultWithShow' was exposed
- GHC 8.2.1 compatibility
Changes in version 0.5.0.0
- Rename 'Show1' to 'ShowP' (#62)
Changes in version 0.3.0.0
-
Some performance improvements, including avoiding quadratic slowdown with left-associated binds.
-
Documentation cleanup; Haxl.Core is the single entry point for the core and engine docs.
-
(>>) is now defined to be (*>), and therefore no longer forces sequencing. This can have surprising consequences if you are using Haxl with side-effecting data sources, so watch out!
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New function withEnv, for running a sub-computation in a local Env
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Add a higher-level memoization API, see 'memo'
-
Show is no longer required for keys in cachedComputation
-
Exceptions now have
Eq
instances