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--- httpd-2.4.3/modules/arch/unix/config5.m4.systemd
+++ httpd-2.4.3/modules/arch/unix/config5.m4
@@ -18,6 +18,19 @@ APACHE_MODULE(privileges, Per-virtualhos
fi
])
+
+APACHE_MODULE(systemd, Systemd support, , , $unixd_mods_enabled, [
+ AC_CHECK_LIB(systemd-daemon, sd_notify, SYSTEMD_LIBS="-lsystemd-daemon")
+ AC_CHECK_HEADERS(systemd/sd-daemon.h, [ap_HAVE_SD_DAEMON_H="yes"], [ap_HAVE_SD_DAEMON_H="no"])
+ if test $ap_HAVE_SD_DAEMON_H = "no" || test -z "${LUA_LIBS}"; then
+ AC_MSG_WARN([Your system does not support systemd.])
+ enable_systemd="no"
+ else
+ APR_ADDTO(MOD_SYSTEMD_LDADD, [$SYSTEMD_LIBS])
+ enable_systemd="yes"
+ fi
+])
+
APR_ADDTO(INCLUDES, [-I\$(top_srcdir)/$modpath_current])
APACHE_MODPATH_FINISH
--- httpd-2.4.3/modules/arch/unix/mod_systemd.c.systemd
+++ httpd-2.4.3/modules/arch/unix/mod_systemd.c
@@ -0,0 +1,138 @@
+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#include <stdint.h>
+#include <ap_config.h>
+#include "ap_mpm.h"
+#include <http_core.h>
+#include <http_log.h>
+#include <apr_version.h>
+#include <apr_pools.h>
+#include <apr_strings.h>
+#include "unixd.h"
+#include "scoreboard.h"
+#include "mpm_common.h"
+
+#include "systemd/sd-daemon.h"
+
+#if APR_HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#define KBYTE 1024
+
+static pid_t pid; /* PID of the main httpd instance */
+static int server_limit, thread_limit, threads_per_child, max_servers;
+static time_t last_update_time;
+static unsigned long last_update_access;
+static unsigned long last_update_kbytes;
+
+static int systemd_pre_mpm(apr_pool_t *p, ap_scoreboard_e sb_type)
+{
+ int rv;
+ last_update_time = time(0);
+
+ ap_mpm_query(AP_MPMQ_HARD_LIMIT_THREADS, &thread_limit);
+ ap_mpm_query(AP_MPMQ_HARD_LIMIT_DAEMONS, &server_limit);
+ ap_mpm_query(AP_MPMQ_MAX_THREADS, &threads_per_child);
+ /* work around buggy MPMs */
+ if (threads_per_child == 0)
+ threads_per_child = 1;
+ ap_mpm_query(AP_MPMQ_MAX_DAEMONS, &max_servers);
+
+ pid = getpid();
+
+ rv = sd_notifyf(0, "READY=1\n"
+ "STATUS=Processing requests...\n"
+ "MAINPID=%lu",
+ (unsigned long) pid);
+ if (rv < 0) {
+ ap_log_perror(APLOG_MARK, APLOG_ERR, 0, p,
+ "sd_notifyf returned an error %d", rv);
+ }
+
+ return OK;
+}
+
+static int systemd_monitor(apr_pool_t *p, server_rec *s)
+{
+ int i, j, res, rv;
+ process_score *ps_record;
+ worker_score *ws_record;
+ unsigned long access = 0;
+ unsigned long bytes = 0;
+ unsigned long kbytes = 0;
+ char bps[5];
+ time_t now = time(0);
+ time_t elapsed = now - last_update_time;
+
+ for (i = 0; i < server_limit; ++i) {
+ ps_record = ap_get_scoreboard_process(i);
+ for (j = 0; j < thread_limit; ++j) {
+ ws_record = ap_get_scoreboard_worker_from_indexes(i, j);
+ if (ap_extended_status && !ps_record->quiescing && ps_record->pid) {
+ res = ws_record->status;
+ if (ws_record->access_count != 0 ||
+ (res != SERVER_READY && res != SERVER_DEAD)) {
+ access += ws_record->access_count;
+ bytes += ws_record->bytes_served;
+ if (bytes >= KBYTE) {
+ kbytes += (bytes >> 10);
+ bytes = bytes & 0x3ff;
+ }
+ }
+ }
+ }
+ }
+
+ apr_strfsize((unsigned long)(KBYTE *(float) (kbytes - last_update_kbytes)
+ / (float) elapsed), bps);
+
+ rv = sd_notifyf(0, "READY=1\n"
+ "STATUS=Total requests: %lu; Current requests/sec: %.3g; "
+ "Current traffic: %sB/sec\n", access,
+ ((float)access - last_update_access) / (float) elapsed, bps);
+ if (rv < 0) {
+ ap_log_error(APLOG_MARK, APLOG_ERR, 0, s, APLOGNO(00000)
+ "sd_notifyf returned an error %d", rv);
+ }
+
+ last_update_access = access;
+ last_update_kbytes = kbytes;
+ last_update_time = now;
+
+ return DECLINED;
+}
+
+static void systemd_register_hooks(apr_pool_t *p)
+{
+ /* We know the PID in this hook ... */
+ ap_hook_pre_mpm(systemd_pre_mpm, NULL, NULL, APR_HOOK_LAST);
+ /* Used to update httpd's status line using sd_notifyf */
+ ap_hook_monitor(systemd_monitor, NULL, NULL, APR_HOOK_MIDDLE);
+}
+
+module AP_MODULE_DECLARE_DATA systemd_module =
+{
+ STANDARD20_MODULE_STUFF,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ systemd_register_hooks,
+};
|
