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diff --git a/modules/arch/unix/mod_systemd.c b/modules/arch/unix/mod_systemd.c
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index 9359d38..6d0cb3b 100644
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--- a/modules/arch/unix/mod_systemd.c
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+++ b/modules/arch/unix/mod_systemd.c
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@@ -49,6 +49,21 @@ static int systemd_pre_config(apr_pool_t *pconf, apr_pool_t *plog,
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return OK;
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}
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+/* Report the service is ready in post_config, which could be during
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+ * startup or after a reload. The server could still hit a fatal
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+ * startup error after this point during ap_run_mpm(), so this is
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+ * perhaps too early, but by post_config listen() has been called on
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+ * the TCP ports so new connections will not be rejected. There will
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+ * always be a possible async failure event simultaneous to the
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+ * service reporting "ready", so this should be good enough. */
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+static int systemd_post_config_last(apr_pool_t *p, apr_pool_t *plog,
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+ apr_pool_t *ptemp, server_rec *main_server)
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+{
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+ sd_notify(0, "READY=1\n"
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+ "STATUS=Configuration loaded.\n");
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+ return OK;
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+}
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+
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static int systemd_pre_mpm(apr_pool_t *p, ap_scoreboard_e sb_type)
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{
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int rv;
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@@ -125,6 +140,8 @@ static void systemd_register_hooks(apr_pool_t *p)
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{
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/* Enable ap_extended_status. */
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ap_hook_pre_config(systemd_pre_config, NULL, NULL, APR_HOOK_LAST);
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+ /* Signal service is ready. */
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+ ap_hook_post_config(systemd_post_config_last, NULL, NULL, APR_HOOK_REALLY_LAST);
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/* We know the PID in this hook ... */
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ap_hook_pre_mpm(systemd_pre_mpm, NULL, NULL, APR_HOOK_LAST);
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/* Used to update httpd's status line using sd_notifyf */
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