On 24 March 2017 at 00:34, <yla...@apache.org> wrote: > Author: ylavic > Date: Thu Mar 23 21:34:25 2017 > New Revision: 1788334 > > URL: http://svn.apache.org/viewvc?rev=1788334&view=rev > Log: > apr_allocator: Provide apr_allocator_align() to get the true size that > would be allocated for the given size (including the header and alignment). > > > Modified: > apr/apr/trunk/CHANGES > apr/apr/trunk/include/apr_allocator.h > apr/apr/trunk/memory/unix/apr_pools.c > > Modified: apr/apr/trunk/CHANGES > URL: > http://svn.apache.org/viewvc/apr/apr/trunk/CHANGES?rev=1788334&r1=1788333&r2=1788334&view=diff > ============================================================================== > --- apr/apr/trunk/CHANGES [utf-8] (original) > +++ apr/apr/trunk/CHANGES [utf-8] Thu Mar 23 21:34:25 2017 > @@ -1,6 +1,10 @@ > -*- coding: utf-8 -*- > Changes for APR 2.0.0 > > + *) apr_allocator: Provide apr_allocator_align() to get the true size that > + would be allocated for the given size (including the header and > + alignment). [Yann Ylavic] > + > *) apr_crypto: avoid excessive iteration in bcrypt hash. > [Hanno Böck <hanno hboeck.de>] > > > Modified: apr/apr/trunk/include/apr_allocator.h > URL: > http://svn.apache.org/viewvc/apr/apr/trunk/include/apr_allocator.h?rev=1788334&r1=1788333&r2=1788334&view=diff > ============================================================================== > --- apr/apr/trunk/include/apr_allocator.h (original) > +++ apr/apr/trunk/include/apr_allocator.h Thu Mar 23 21:34:25 2017 > @@ -103,6 +103,14 @@ APR_DECLARE(apr_memnode_t *) apr_allocat > APR_DECLARE(void) apr_allocator_free(apr_allocator_t *allocator, > apr_memnode_t *memnode) > __attribute__((nonnull(1,2))); > + > +/** > + * Return the aligned (round up) size that an allocator would use for > + * the given size. > + * @param size The size to align > + * @return The aligned size (or zero on apr_size_t overflow) > + */ > +APR_DECLARE(apr_size_t) apr_allocator_align(apr_size_t size); What is the purpose of this API? Currently caller may use apr_memnode_t.endp to find actually allocated memory size.
Anyway I think it maybe worth to add apr_allocator_t argument to apr_allocator_align() function even currently allocation alignment is the same for all allocators. -- Ivan Zhakov
