fix misuse of autodata in initialization of the wakeup

pipe when the pollset was created with APR_POLLSET_NOCOPY

Submitted by: Neil Conway <nrc cs.berkeley.edu>
Reviewed by: trawick


git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@932585 13f79535-47bb-0310-9956-ffa450edef68

Author: trawick

include/arch/unix/apr_arch_poll_private.h

@@ -115,6 +115,7 @@ struct apr_pollset_t
     apr_uint32_t flags;
     /* Pipe descriptors used for wakeup */
     apr_file_t *wakeup_pipe[2];
+    apr_pollfd_t wakeup_pfd;
     apr_pollset_private_t *p;
     apr_pollset_provider_t *provider;
 };

poll/unix/pollset.c

@@ -153,16 +153,14 @@ APR_DECLARE(apr_status_t) apr_pollset_create_ex(apr_pollset_t **ret_pollset,
         pollset->provider = provider;
     }
     if (flags & APR_POLLSET_WAKEABLE) {
-        apr_pollfd_t pfd;
-
         /* Create wakeup pipe */
-        if ((rv = apr_poll_create_wakeup_pipe(pollset->pool, &pfd,
+        if ((rv = apr_poll_create_wakeup_pipe(pollset->pool, &pollset->wakeup_pfd,
                                               pollset->wakeup_pipe))
                 != APR_SUCCESS) {
             return rv;
         }
 
-        if ((rv = apr_pollset_add(pollset, &pfd)) != APR_SUCCESS) {
+        if ((rv = apr_pollset_add(pollset, &pollset->wakeup_pfd)) != APR_SUCCESS) {
             return rv;
         }
     }