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httpd-2.4.3-mod_systemd.patch
re-do apache
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697c807
at 2014-05-04 11:45:42
httpd-2.4.3-mod_systemd.patch
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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 $ap_HAVE_SD_DAEMON_H = "no" || test -z "${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 --- 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, +};
