PTHREADRWLOCKATTRGE... BSD Library Functions Manual PTHREADRWLOCKATTRGE...

NAME
     pptthhrreeaaddrrwwlloocckkaattttrrggeettppsshhaarreedd - get the process shared attribute

SYNOPSIS
     ##iinncclluuddee <>

     int
     pptthhrreeaaddrrwwlloocckkaattttrrggeettppsshhaarreedd(const pthreadrwlockattrt *attr,
         int *pshared);

DESCRIPTION
     The pptthhrreeaaddrrwwlloocckkaattttrrggeettppsshhaarreedd() function is used to get the process
     shared setting of a read/write lock attribute object.  The setting is
     returned via pshared, and may be one of two values:

     PTHREADPROCESSSHARED   Any thread of any process that has access to the
                              memory where the read/write lock resides can
                              manipulate the lock.

     PTHREADPROCESSPRIVATE  Only threads created within the same process as
                              the thread that initialized the read/write lock
                              can manipulate the lock.  This is the default
                              value.

RETURN VALUES
     If successful, the pptthhrreeaaddrrwwlloocckkaattttrrggeettppsshhaarreedd() function will return
     zero.  Otherwise an error number will be returned to indicate the error.

SEE ALSO
     pthreadrwlockattrinit(3), pthreadrwlockattrsetpshared(3),
     pthreadrwlockinit(3)

STANDARDS     The pptthhrreeaaddrrwwlloocckkaattttrrggeettppsshhaarreedd() function is expected to conform to
     Version 2 of the Single UNIX Specification (``SUSv2'').

EERRRROORRSS
     pptthhrreeaaddrrwwlloocckkaattttrrggeettppsshhaarreedd() may fail if:

     [EINVAL]           The value specified by attr is invalid.

HISTORY     The pptthhrreeaaddrrwwlloocckkaattttrrggeettppsshhaarreedd() function first appeared in
     FreeBSD 3.0.

BSD                             March 22, 1999                             BSD