server/mpm/simple/simple_core.c

   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
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  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.
  15  */
  16
  17 /* Simple Core utility methods.
  18  */
  19
  20 #include "simple_types.h"
  21 #include "mpm.h"
  22 #include "ap_mpm.h"
  23 #include "httpd.h"
  24 #include "http_log.h"
  25
  26 static simple_core_t g_simple_core;
  27
  28 #ifndef DEFAULT_MAX_REQUESTS_PER_CHILD
  29 #define DEFAULT_MAX_REQUESTS_PER_CHILD 0
  30 #endif
  31
  32
  33 simple_core_t *simple_core_get()
  34 {
  35     return &g_simple_core;
  36 }
  37
  38 apr_status_t simple_core_init(simple_core_t * sc, apr_pool_t * pool)
  39 {
  40     apr_status_t rv;
  41
  42     memset(sc, 0, sizeof(simple_core_t));
  43
  44     apr_pool_create(&sc->pool, pool);
  45
  46     apr_pool_tag(sc->pool, "simple-mpm-core");
  47
  48     sc->mpm_state = AP_MPMQ_STARTING;
  49     sc->procmgr.proc_count = SIMPLE_DEF_PROC;
  50     sc->procmgr.thread_count = SIMPLE_DEF_THREADS;
  51     sc->procmgr.max_requests_per_child = DEFAULT_MAX_REQUESTS_PER_CHILD;
  52
  53     sc->children = apr_hash_make(sc->pool);
  54     /* TODO: configurable spawning mech */
  55     sc->spawn_via = SIMPLE_SPAWN_FORK;
  56
  57     APR_RING_INIT(&sc->timer_ring, simple_timer_t, link);
  58
  59     rv = apr_thread_mutex_create(&sc->mtx, 0, sc->pool);
  60
  61     if (rv) {
  62         ap_log_error(APLOG_MARK, APLOG_CRIT, rv, NULL,
  63                      "simple_core_init: apr_thread_mutex_create failed.");
  64         return rv;
  65     }
  66
  67     return APR_SUCCESS;
  68 }