Update apr_atomic_init documentation. PR: 42760.

git-svn-id: http://svn.apache.org/repos/asf/apr/apr/trunk@551962 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 3 insertions, 0 deletions

diff --git a/memory/unix/apr_pools.c b/memory/unix/apr_pools.c
index 461453f3f..eb3639c9d 100644
--- a/memory/unix/apr_pools.c
+++ b/memory/unix/apr_pools.c
@@ -556,6 +556,9 @@ APR_DECLARE(apr_status_t) apr_pool_initialize(void)
 
     /* This has to happen here because mutexes might be backed by
      * atomics.  It used to be snug and safe in apr_initialize().
+     *
+     * Warning: apr_atomic_init() must always be called, by any
+     * means possible, from apr_initialize().
      */
     if ((rv = apr_atomic_init(global_pool)) != APR_SUCCESS) {
         return rv;