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Copyright (c) 1998 Alex Nash
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$FreeBSD: src/lib/libpthread/man/pthread_rwlockattr_init.3,v 1.7 2002/09/16 19:29:29 mini Exp $
.Dd January 30, 2003 .Dt PTHREAD_RWLOCKATTR 3 .Os .Sh NAME .Nm pthread_rwlockattr_init , .Nm pthread_rwlockattr_destroy .Nd initialize or destroy read/write lock attributes .Sh LIBRARY .Lb libpthread .Sh SYNOPSIS n pthread.h .Ft int .Fn pthread_rwlockattr_init "pthread_rwlockattr_t *attr" .Ft int .Fn pthread_rwlockattr_destroy "pthread_rwlockattr_t *attr" .Sh DESCRIPTION The .Fn pthread_rwlockattr_init function is used to initialize a read/write lock attributes object.
p The .Fn pthread_rwlockattr_destroy function is used to destroy a read/write lock attribute object previously created with .Fn pthread_rwlockattr_init . .Sh RETURN VALUES If successful, the .Fn pthread_rwlockattr_init and .Fn pthread_rwlockattr_destroy functions return zero. Otherwise an error number will be returned to indicate the error. .Sh ERRORS .Fn pthread_rwlockattr_init shall fail if: l -tag -width Er t Bq Er ENOMEM Insufficient memory exists to initialize the read/write lock attributes object. .El
p .Fn pthread_rwlockattr_init and .Fn pthread_rwlockattr_destroy may fail if: l -tag -width Er t Bq Er EINVAL The value specified by .Fa attr is invalid. .El .Sh SEE ALSO .Xr pthread_rwlock_init 3 .Sh STANDARDS The .Fn pthread_rwlockattr_init and .Fn pthread_rwlockattr_destroy functions conform to .St -p1003.1-96 .