[haiku-bugs] Re: [Haiku] #8798: PTHREAD_RWLOCK_INITIALIZER macro not defined

  • From: "korli" <trac@xxxxxxxxxxxx>
  • Date: Tue, 30 May 2017 20:44:10 -0000

#8798: PTHREAD_RWLOCK_INITIALIZER macro not defined
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   Reporter:  cian          |      Owner:  nobody
       Type:  bug           |     Status:  reopened
   Priority:  normal        |  Milestone:  Unscheduled
  Component:  System/POSIX  |    Version:  R1/Development
 Resolution:                |   Keywords:
 Blocked By:                |   Blocking:
Has a Patch:  1             |   Platform:  All
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Comment (by korli):

 Tested on x86_64 only. I tried to implement again the local pthread_rwlock
 with mutexes. Might not be the best solution, the old one used
 block_thread and unblock_thread syscalls. Please review.

 Another problem is the size of the struct _pthread_rwlock, it stays the
 same on x86_64 (40 bytes), not on x86 (was 32 bytes). I suppose we can
 reduce to only use 32 bytes on x86 and let 8 bytes unused on x86_64. Can
 this size actually change? Or are we stucked with these sizes for
 compatibility reasons?

--
Ticket URL: <https://dev.haiku-os.org/ticket/8798#comment:12>
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