[haiku-bugs] Re: [Haiku] #5693: Implement pthread spinlocks (easy)
- From: "bonefish" <trac@xxxxxxxxxxxx>
- Date: Sun, 18 Apr 2010 10:38:39 -0000
#5693: Implement pthread spinlocks (easy)
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Reporter: bonefish | Owner: nobody
Type: enhancement | Status: closed
Priority: normal | Milestone: R1
Component: System/POSIX | Version: R1/Development
Resolution: fixed | Keywords:
Blockedby: | Platform: All
Blocking: |
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Comment(by bonefish):
Replying to [comment:7 lucian]:
> Something's wrong, but I can't figure it out and I don't want to be
chasing wild geese. The implementation you submitted fails one test:
{{{pthread_spin_trylock}}} seems to return {{{-EBUSY}}} instead of the
expected {{{EBUSY}}}.
>
> In code I have {{{return EBUSY;}}}, but the value returned to the user
is equal to the user's {{{-EBUSY}}}. I may have a different {{{EBUSY}}}
definition than the library's user. Am I including the wrong headers, or
forgot to define something?
Since (due to BeOS compatibility) Haiku's error codes are negative while
POSIX demands positive values, the test suite is built with
{{{-lposix_error_mapper -DB_USE_POSITIVE_POSIX_ERRORS}}}. The define makes
all error code constants positive, the library provides wrappers for all
functions that return or deal with error codes. I added the spinlock
function wrappers in r36334. If you have built the test suite before that
revision, +/- problems are to be expected.
--
Ticket URL: <http://dev.haiku-os.org/ticket/5693#comment:8>
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