update mod_systemd (r1802251)

1 files changed, 188 insertions, 0 deletions

diff --git a/httpd-2.4.27-systemd.patch b/httpd-2.4.27-systemd.patch
new file mode 100644
index 0000000..26aac48
--- /dev/null
+++ b/httpd-2.4.27-systemd.patch
@@ -0,0 +1,188 @@
+diff -uap httpd-2.4.27/modules/arch/unix/config5.m4.systemd httpd-2.4.27/modules/arch/unix/config5.m4
+diff -uap httpd-2.4.27/modules/arch/unix/config5.m4.systemd httpd-2.4.27/modules/arch/unix/config5.m4
+diff -uap httpd-2.4.27/modules/arch/unix/config5.m4.systemd httpd-2.4.27/modules/arch/unix/config5.m4
+diff -uap httpd-2.4.27/modules/arch/unix/config5.m4.systemd httpd-2.4.27/modules/arch/unix/config5.m4
+--- httpd-2.4.27/modules/arch/unix/config5.m4.systemd
++++ httpd-2.4.27/modules/arch/unix/config5.m4
+@@ -18,6 +18,16 @@
+   fi
+ ])
+ 
++APACHE_MODULE(systemd, Systemd support, , , all, [
++  if test "${ac_cv_header_systemd_sd_daemon_h}" = "no" || test -z "${SYSTEMD_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
+diff -uap httpd-2.4.27/modules/arch/unix/mod_systemd.c.systemd httpd-2.4.27/modules/arch/unix/mod_systemd.c
+--- httpd-2.4.27/modules/arch/unix/mod_systemd.c.systemd
++++ httpd-2.4.27/modules/arch/unix/mod_systemd.c
+@@ -0,0 +1,161 @@
++/* 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 shutdown_timer = 0;
++static int shutdown_counter = 0;
++static unsigned long bytes_served;
++static pid_t mainpid;
++
++static int systemd_pre_config(apr_pool_t *pconf, apr_pool_t *plog,
++                              apr_pool_t *ptemp)
++{
++    sd_notify(0,
++              "RELOADING=1\n"
++              "STATUS=Reading configuration...\n");
++    ap_extended_status = 1;
++    return OK;
++}
++
++static int systemd_pre_mpm(apr_pool_t *p, ap_scoreboard_e sb_type)
++{
++    int rv;
++
++    mainpid = getpid();
++
++    rv = sd_notifyf(0, "READY=1\n"
++                    "STATUS=Processing requests...\n"
++                    "MAINPID=%" APR_PID_T_FMT, mainpid);
++    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;
++
++    if (!ap_extended_status) {
++        /* Nothing useful to report if ExtendedStatus disabled. */
++        return DECLINED;
++    }
++    
++    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);
++    }
++
++    /* Shutdown httpd when nothing is sent for shutdown_timer seconds. */
++    if (sload.bytes_served == bytes_served) {
++        /* mpm_common.c: INTERVAL_OF_WRITABLE_PROBES is 10 */
++        shutdown_counter += 10;
++        if (shutdown_timer > 0 && shutdown_counter >= shutdown_timer) {
++            rv = sd_notifyf(0, "READY=1\n"
++                            "STATUS=Stopped as result of IdleShutdown "
++                            "timeout.");
++            if (rv < 0) {
++                ap_log_error(APLOG_MARK, APLOG_ERR, 0, s, APLOGNO(02804)
++                            "sd_notifyf returned an error %d", rv);
++            }
++            kill(mainpid, AP_SIG_GRACEFUL);
++        }
++    }
++    else {
++        shutdown_counter = 0;
++    }
++
++    bytes_served = sload.bytes_served;
++
++    return DECLINED;
++}
++
++static void systemd_register_hooks(apr_pool_t *p)
++{
++    /* Enable ap_extended_status. */
++    ap_hook_pre_config(systemd_pre_config, NULL, NULL, APR_HOOK_LAST);
++    /* 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);
++}
++
++static const char *set_shutdown_timer(cmd_parms *cmd, void *dummy,
++                                      const char *arg)
++{
++    const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
++    if (err != NULL) {
++        return err;
++    }
++
++    shutdown_timer = atoi(arg);
++    return NULL;
++}
++
++static const command_rec systemd_cmds[] =
++{
++AP_INIT_TAKE1("IdleShutdown", set_shutdown_timer, NULL, RSRC_CONF,
++     "Number of seconds in idle-state after which httpd is shutdown"),
++    {NULL}
++};
++
++AP_DECLARE_MODULE(systemd) = {
++    STANDARD20_MODULE_STUFF,
++    NULL,
++    NULL,
++    NULL,
++    NULL,
++    systemd_cmds,
++    systemd_register_hooks,
++};