From 6ed524dc3f4c2f655cdd316ddc7b78e0477c696f Mon Sep 17 00:00:00 2001 From: Yann Ylavic Date: Fri, 12 Apr 2024 13:16:40 +0000 Subject: [PATCH] mpm_event,mpm_worker: Comment about pollset sizing when APR_POLLSET_WAKEABLE. Follow up to r1916925 and r1916926. git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1916929 13f79535-47bb-0310-9956-ffa450edef68 --- server/mpm/event/event.c | 5 ++++- server/mpm/worker/worker.c | 5 ++++- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/server/mpm/event/event.c b/server/mpm/event/event.c index 372b94f61b4..0a11046b86c 100644 --- a/server/mpm/event/event.c +++ b/server/mpm/event/event.c @@ -2628,7 +2628,10 @@ static void setup_threads_runtime(void) clean_child_exit(APEXIT_CHILDFATAL); } - /* Create the main pollset */ + /* Create the main pollset. When APR_POLLSET_WAKEABLE is asked we account + * for the wakeup pipe explicitely with pollset_size+1 because some pollset + * implementations don't do it implicitely in APR. + */ pollset_flags = APR_POLLSET_THREADSAFE | APR_POLLSET_NOCOPY | APR_POLLSET_WAKEABLE | APR_POLLSET_NODEFAULT; for (i = 0; i < sizeof(good_methods) / sizeof(good_methods[0]); i++) { diff --git a/server/mpm/worker/worker.c b/server/mpm/worker/worker.c index 2d1061f5cfc..42b81a8ed1b 100644 --- a/server/mpm/worker/worker.c +++ b/server/mpm/worker/worker.c @@ -909,7 +909,10 @@ static void setup_threads_runtime(void) clean_child_exit(APEXIT_CHILDFATAL); } - /* Create the main pollset */ + /* Create the main pollset. When APR_POLLSET_WAKEABLE is asked we account + * for the wakeup pipe explicitely with num_listensocks+1 because some + * pollset implementations don't do it implicitely in APR. + */ pollset_flags = APR_POLLSET_NOCOPY | APR_POLLSET_WAKEABLE; rv = apr_pollset_create(&worker_pollset, num_listensocks + 1, pruntime, pollset_flags);