1 /* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements. See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License. You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
23 AP_DECLARE(apr_status_t) ap_mpm_pod_open(apr_pool_t *p, ap_pod_t **pod)
27 *pod = apr_palloc(p, sizeof(**pod));
28 rv = apr_file_pipe_create(&((*pod)->pod_in), &((*pod)->pod_out), p);
29 if (rv != APR_SUCCESS) {
33 apr_file_pipe_timeout_set((*pod)->pod_in, 0);
37 /* close these before exec. */
38 apr_file_unset_inherit((*pod)->pod_in);
39 apr_file_unset_inherit((*pod)->pod_out);
44 AP_DECLARE(int) ap_mpm_pod_check(ap_pod_t *pod)
50 /* we need to surface EINTR so we'll have to grab the
51 * native file descriptor and do the OS read() ourselves
53 apr_os_file_get(&fd, pod->pod_in);
66 AP_DECLARE(apr_status_t) ap_mpm_pod_close(ap_pod_t *pod)
70 rv = apr_file_close(pod->pod_out);
71 if (rv != APR_SUCCESS) {
75 rv = apr_file_close(pod->pod_in);
76 if (rv != APR_SUCCESS) {
82 static apr_status_t pod_signal_internal(ap_pod_t *pod, int graceful)
85 char char_of_death = graceful ? GRACEFUL_CHAR : RESTART_CHAR;
89 rv = apr_file_write(pod->pod_out, &char_of_death, &one);
90 } while (APR_STATUS_IS_EINTR(rv));
91 if (rv != APR_SUCCESS) {
92 ap_log_error(APLOG_MARK, APLOG_WARNING, rv, ap_server_conf,
93 "write pipe_of_death");
98 AP_DECLARE(apr_status_t) ap_mpm_pod_signal(ap_pod_t *pod, int graceful)
100 return pod_signal_internal(pod, graceful);
103 AP_DECLARE(void) ap_mpm_pod_killpg(ap_pod_t *pod, int num, int graceful)
106 apr_status_t rv = APR_SUCCESS;
108 for (i = 0; i < num && rv == APR_SUCCESS; i++) {
109 rv = pod_signal_internal(pod, graceful);