From redline6561 at gmail.com  Tue Nov  3 16:04:56 2009
From: redline6561 at gmail.com (Brit Butler)
Date: Tue, 3 Nov 2009 16:04:56 -0500
Subject: [pg-cvs] ECL Build Problems
Message-ID: <975972700911031304n5e741632t21521185fd857334@mail.gmail.com>

Dear osicat-devs,

I am presently unable to (require 'osicat) on ECL Head. There is a complete
log of the (require ...) output at http://redlinernotes.com/docs/osicat.txt.
Here's the short version: There is some sort of problem with
posix/basic-unixint.c. My understanding is that ECL invokes GCC to try and
produce a .o file and that compilation seems to fail. I get no output
explaining why. Later ECL seems to try to link against basic-unixint.o which
was never created and it complains of a truncated file. I may be misreading
the output. I would love to be able to use Osicat with ECL. Is there some
way I can provide more information or otherwise help rectify this?

Regards,
Brit Butler
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From madnificent at gmail.com  Wed Nov 11 06:56:49 2009
From: madnificent at gmail.com (madnificent at gmail.com)
Date: Wed, 11 Nov 2009 12:56:49 +0100 (CET)
Subject: [pg-cvs] issue: mmap returns a pointer
Message-ID: <g1w1cy1p8735towaeoUYAxe124vaj_firegpg@mail.gmail.com>

Hello osicat-devel


Whilst getting help from John Fremlin for manardb, an issue with osicat arose.  Apparently osicat-posix assumes that the return value from mmap is an int when it is a pointer.  He noted that mremap is broken too.

a backtrace containing the result:

CL-USER> (manardb:use-mmap-dir "/tmp/manardb/" :if-does-not-exist :create)

The value -134270976 is not of type (UNSIGNED-BYTE 64).
   [Condition of type TYPE-ERROR]

Restarts:
 0: [ABORT] Return to SLIME's top level.
 1: [TERMINATE-THREAD] Terminate this thread (#<THREAD "repl-thread" RUNNING {1003249DB1}>)

Backtrace:
  0: (OSICAT-POSIX:MMAP #.(SB-SYS:INT-SAP #X00000000) 4096 3 1 4 0)
  1: (MANARDB::MTAGMAP-OPEN #<MANARDB::MTAGMAP >)[:EXTERNAL]
  2: (MANARDB:OPEN-ALL-MMAPS)

John Fremlin made me fix the bug by evaluating the following code in osicat-posix:

(DEFCFUN ("mmap_cffi_wrap" MMAP :CONVENTION :CDECL :LIBRARY :DEFAULT)
                 (ERRNO-WRAPPER :UNSIGNED-LONG :ERROR-PREDICATE (LAMBDA (P) (= P MAP-FAILED)) :RETURN-FILTER MAKE-POINTER)
                 (START :POINTER)
                 (LENGTH SIZE)
                 (PROT :INT)
                 (FLAGS :INT)
                 (FD FILE-DESCRIPTOR-DESIGNATOR)
                 (OFFSET OFF))


cheers,

the madnificent
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