sbcl/1.0.38/sbcl-1.0.38-release-notes.txt

changes in sbcl-1.0.38 relative to sbcl-1.0.37: * incompatible change: Thread names are now restricted to SIMPLE-STRINGs like for any other thread-related datastructure, MUTEX, etc. (lp#547095) * deprecation: the SB-QUEUE contrib was merged into the SB-CONCURRENCY contrib module. New code should depend on SB-CONCURRENCY, not SB-QUEUE. * deprecation: SB-THEAD:GET-MUTEX was deprecated in favor of SB-THREAD:GRAB-MUTEX. * new contributed module: SB-CONCURRENCY is a new contrib; it's supposed to contain additional data structures and tools for concurrent programming; at the moment it contains a lock-free queue, and a lock-free mailbox implementation. * new feature: added SB-THREAD:GRAB-MUTEX; it's like the now deprecated GET-MUTEX but takes &key rather than &optional parameters. Also added :TIMEOUT argument to GRAB-MUTEX on non-sb-lutex platforms like Linux and BSD. * new feature: added SB-THREAD:TRY-SEMAPHORE, a non-blocking variant of SB-THREAD:WAIT-ON-SEMAPHORE. * new feature: SB-EXT:ATOMIC-DECF has been added as a companion to SB-EXT:ATOMIC-INCF. * new feature: a CANCEL-DEADLINE is associated with DEADLINE-TIMEOUT conditions to defer the deadline for forever. * enhancement: *STANDARD-OUTPUT*, *STANDARD-INPUT*, and *ERROR-OUTPUT* are now bivalent. * enhancement: errors from NO-APPLICABLE-METHOD and NO-PRIMARY-METHOD now have a RETRY restart available to retry the generic function call. * enhancement: SB-BSD-SOCKET improvements ** sockets and socket streams now have a more informative printed representation based on the corresponding SOCKET-NAME and SOCKET-PEERNAME. ** SOCKET-MAKE-STREAM once more supports the :AUTO-CLOSE option. (lp#540413) ** SOCKET-CLOSE now accepts :ABORT argument, which is passed on to CL:CLOSE when appropriate, and no longer disassociates the stream from the socket if close failed. (lp#543951) * improvements to the instrumenting profiler ** new feature: report per-function GC overhead. (thanks to John Fremlin) ** optimization: counters no longer use locks for the overflow mode. ** bug fix: whenever a profiling counter wrapped into overflow mode, it incurred an off-by-one miscount. * enhancement: improved MAKE-HASH-TABLE documentation (lp#543473) * enhancement: improved DEFMETHOD pretty-printing. * enhancement: perform range reduction when arguments are too large for x87's transcendentals (instead of returning 0). (lp#327192) * enhancement: eliminate some spurious TYPE-WARNINGs. Should help with some of CL-PPCRE's macros. (lp#570079) * enhancement: our machine code is slightly less hostile to valgrind on x86-64. * enhancement: up-to-date versions of NetBSD-current are supported. (Thanks to Robert Swindells and Aleksej Saushev) * bug fix: correct restart text for the continuable error in MAKE-PACKAGE. * bug fix: a rare case of startup-time page table corruption. * bug fix: a semaphore with multiple waiters and some of them unwinding due to timeouts could be left in an inconsistent state. * bug fix: fix typo in "Reporting Bugs" section of the manual (lp#520366) * bug fix: misoptimization of multiplication by one in (SB-C::FLOAT-ACCURACY 0) policies. * bug fix: miscounts in SB-PROFILE. * bug fix: Fix lost wakeup bug between SB-THREAD:CONDITION-WAIT and CONDITION-NOTIFY on Linux. See threads "lost wakeup in condition-wait / condition-notify" (Feb 2010) and "Condition-Wait, Deadline handler, waking up itself" (March 2010) for further details. * bug fix: allow forward FIND and POSITION on lists to elide checking :END against length of the list if the element is found before the specified END is reached. (thanks to Alec Berryman, lp#554385) * bug fix: errors signalled during package graph modification no longer block FIND-SYMBOL and FIND-PACKAGE in other threads. (lp#511072) * bug fix: SB-POSIX build was broken when SBCL was compiled without the :SB-DOC feature. (lp#552564) * bug fix: SB-INTROSPECT build issues on GENGC/PPC. (lp#490490) * bug fix: more robust runtime executable path detection. (lp#375549) * bug fix: GCD always returns positive values. (lp#413680) * bug fix: Converting division to multiplication by reciprocal handles denormals. * bug fix: We were too eager in eliding range reduction tests on x87. The maximal magnitude is 2^63, not 2^64. * bug fix: Transforms for TRUNCATE don't die when the result is completely ignored anymore. * bug fix: Maybe restore buildability on Alpha. * bug fix: READ-BYTE isn't inline anymore, fixing weird streams failures. (lp#569404) * bug fix: RANDOM-STATE can be printed readably again. * bug fix: Unreadable objects were sometimes printed like #<

Foo>. * bug fix: Using EQL with non-constant values of constant type (e.g. EQL types) could result in type mismatches during compilation.