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/* 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 <httpd.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
static int systemd_pre_mpm(apr_pool_t *p, ap_scoreboard_e sb_type)
{
int rv;
pid_t pid;
pid = getpid();
ap_extended_status = 1;
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, APLOGNO(02395)
"sd_notifyf returned an error %d", rv);
}
return OK;
}
static int systemd_monitor(apr_pool_t *p, server_rec *s)
{
ap_sload_t sload;
apr_interval_time_t up_time;
char bps[5];
int rv;
ap_get_sload(&sload);
/* up_time in seconds */
up_time = (apr_uint32_t) apr_time_sec(apr_time_now() -
ap_scoreboard_image->global->restart_time);
apr_strfsize((unsigned long)((float) (sload.bytes_served)
/ (float) up_time), bps);
rv = sd_notifyf(0, "READY=1\n"
"STATUS=Total requests: %lu; Idle/Busy workers %d/%d;"
"Requests/sec: %.3g; Bytes served/sec: %sB/sec\n",
sload.access_count, sload.idle, sload.busy,
((float) sload.access_count) / (float) up_time, bps);
if (rv < 0) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s, APLOGNO(02396)
"sd_notifyf returned an error %d", rv);
}
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,
};
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