June 2013 - jhc - Haskell.org

ANNOUNCE: Ajhc 0.8.0.6 Release
by Kiwamu Okabe 20 Jun '13

20 Jun '13

We are happy to announce Ajhc 0.8.0.6. Major change on the release is supporting THREAD. Yeah! You can get Ajhc using "cabal install ajhc" command. Ajhc's project web site is found at http://ajhc.metasepi.org/. You find the source code at https://github.com/ajhc/ajhc/tags. Welcome sending any bugs or your ideas to https://github.com/ajhc/ajhc/issues. ## Good news * You can use forkOS interface on Ajhc. * Your program runs on pthread with compiling -fpthread option. See below. $ cat Main.hs import Control.Monad import Control.Concurrent main :: IO () main = do l <- putStrLn "Type some string and enter." >> getLine forkOS $ (forever $ putChar '*') forkOS $ (forever $ putStr l) forever $ putChar '.' $ ajhc -fpthread Main.hs $ ./hs.out ## Bad news * Ajhc guards critical section only for the runtime. * Example: StablePtr isn't guarded with lock. * Ajhc's thread can't share any objects without Ptr type. * And you may find funny pthread bugs. Please send us the report! ## Other changes * No more depend on DrIFT. * Add _JHC_JGC_LIMITED_NUM_GC_STACK flag to set number of limited gc_stack entries. * Add _JHC_JGC_FIXED_MEGABLOCK flag to set number of limited megablock entries. * Add compile flags -fcustomthread -fpthread -fnothread. * You can implement your own thread API for Ajhc, if you choose -fcustomthread. Enjoy! ;) - - - Metasepi team

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ANNOUNCE: Ajhc 0.8.0.5 Release
by Kiwamu Okabe 08 Jun '13

08 Jun '13

We are happy to announce Ajhc 0.8.0.5. Major change on this release is supporting haddock. You can see Ajhc's internal using web browser. Ajhc's project web site is found at http://ajhc.metasepi.org/. You can get the source code from https://github.com/ajhc/ajhc/tags. ## Changes * Support haddock. You can read haddock on http://hackage.haskell.org/package/ajhc, hopefully. * Split library from Ajhc program. * Better NAIVEGC. * Add arity "arena" to all functions compiled by Ajhc. For supporting reentrant in future. * Run SelfTest and rtstest on travis-ci. * Add jahm command to download file from Hackage DB, because sometime perl script occurs error. Enjoy. :) - - - Metasepi team

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How newStablePtr return un-packable IO ()?
by Kiwamu Okabe 05 Jun '13

05 Jun '13

Hi, jhc hackers. Now, I am trying create forkOS with pthread. But StablePtr error stops it. Jhc's newStablePtr cannot pack IO () for running with unpack. $ cat Main.hs import Foreign.StablePtr main :: IO () main = do p <- newStablePtr $ print "hoge" d <- deRefStablePtr p d casper$ ajhc Main.hs ajhc Main.hs ajhc 0.8.0.5 (b6d58e95e63be9848f267e9242dedff5e5f7b25b) Finding Dependencies... Using Ho Cache: '/home/kiwamu/.ajhc/cache' Main [Main.hs] <~/.ajhc/cache/c41ljd5d48u6h86r9ap27k0vq2.ho> Fresh: <~/.ajhc/cache/c41ljd5d48u6h86r9ap27k0vq2.ho> Typechecking... Compiling... Collected Compilation... -- TypeAnalyzeMethods -- BoxifyProgram -- Boxy WorkWrap -- LambdaLift Converting to Grin... Updatable CAFS: 0 Constant CAFS: 0 Recursive CAFS: 0 ajhc: Grin.FromE.compile'.ce in function: theMain can't grok expression: <fromBang_ x128471745∷IO ()> x62470114 How newStablePtr return un-packable IO ()? Best regards, -- Kiwamu Okabe

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