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92e366007c
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1209766 13f79535-47bb-0310-9956-ffa450edef68
114 lines
3.0 KiB
C
114 lines
3.0 KiB
C
/* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "apr_portable.h"
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#include "pod.h"
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#if APR_HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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APLOG_USE_MODULE(mpm_worker);
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AP_DECLARE(apr_status_t) ap_worker_pod_open(apr_pool_t *p, ap_worker_pod_t **pod)
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{
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apr_status_t rv;
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*pod = apr_palloc(p, sizeof(**pod));
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rv = apr_file_pipe_create(&((*pod)->pod_in), &((*pod)->pod_out), p);
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if (rv != APR_SUCCESS) {
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return rv;
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}
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/*
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apr_file_pipe_timeout_set((*pod)->pod_in, 0);
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*/
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(*pod)->p = p;
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/* close these before exec. */
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apr_file_inherit_unset((*pod)->pod_in);
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apr_file_inherit_unset((*pod)->pod_out);
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return APR_SUCCESS;
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}
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AP_DECLARE(int) ap_worker_pod_check(ap_worker_pod_t *pod)
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{
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char c;
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apr_os_file_t fd;
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int rc;
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/* we need to surface EINTR so we'll have to grab the
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* native file descriptor and do the OS read() ourselves
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*/
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apr_os_file_get(&fd, pod->pod_in);
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rc = read(fd, &c, 1);
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if (rc == 1) {
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switch(c) {
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case RESTART_CHAR:
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return AP_RESTART;
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case GRACEFUL_CHAR:
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return AP_GRACEFUL;
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}
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}
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return AP_NORESTART;
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}
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AP_DECLARE(apr_status_t) ap_worker_pod_close(ap_worker_pod_t *pod)
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{
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apr_status_t rv;
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rv = apr_file_close(pod->pod_out);
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if (rv != APR_SUCCESS) {
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return rv;
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}
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rv = apr_file_close(pod->pod_in);
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if (rv != APR_SUCCESS) {
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return rv;
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}
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return rv;
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}
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static apr_status_t pod_signal_internal(ap_worker_pod_t *pod, int graceful)
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{
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apr_status_t rv;
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char char_of_death = graceful ? GRACEFUL_CHAR : RESTART_CHAR;
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apr_size_t one = 1;
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rv = apr_file_write(pod->pod_out, &char_of_death, &one);
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if (rv != APR_SUCCESS) {
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ap_log_error(APLOG_MARK, APLOG_WARNING, rv, ap_server_conf, APLOGNO(00325)
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"write pipe_of_death");
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}
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return rv;
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}
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AP_DECLARE(apr_status_t) ap_worker_pod_signal(ap_worker_pod_t *pod, int graceful)
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{
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return pod_signal_internal(pod, graceful);
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}
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AP_DECLARE(void) ap_worker_pod_killpg(ap_worker_pod_t *pod, int num, int graceful)
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{
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int i;
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apr_status_t rv = APR_SUCCESS;
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for (i = 0; i < num && rv == APR_SUCCESS; i++) {
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rv = pod_signal_internal(pod, graceful);
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}
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}
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