1 files changed, 115 insertions, 0 deletions
diff --git a/server/eor_bucket.c b/server/eor_bucket.c
new file mode 100644
index 0000000..ecb809c
--- /dev/null
+++ b/server/eor_bucket.c
@@ -0,0 +1,115 @@
+/* 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 "httpd.h"
+#include "http_request.h"
+#include "http_protocol.h"
+#include "scoreboard.h"
+
+typedef struct {
+    apr_bucket_refcount refcount;
+    request_rec *data;
+} ap_bucket_eor;
+
+static apr_status_t eor_bucket_cleanup(void *data)
+{
+    request_rec **rp = data;
+
+    if (*rp) {
+        request_rec *r = *rp;
+        /*
+         * If eor_bucket_destroy is called after us, this prevents
+         * eor_bucket_destroy from trying to destroy the pool again.
+         */
+        *rp = NULL;
+        /* Update child status and log the transaction */
+        ap_update_child_status(r->connection->sbh, SERVER_BUSY_LOG, r);
+        ap_run_log_transaction(r);
+        if (ap_extended_status) {
+            ap_increment_counts(r->connection->sbh, r);
+        }
+    }
+    return APR_SUCCESS;
+}
+
+static apr_status_t eor_bucket_read(apr_bucket *b, const char **str,
+                                    apr_size_t *len, apr_read_type_e block)
+{
+    *str = NULL;
+    *len = 0;
+    return APR_SUCCESS;
+}
+
+AP_DECLARE(apr_bucket *) ap_bucket_eor_make(apr_bucket *b, request_rec *r)
+{
+    ap_bucket_eor *h;
+
+    h = apr_bucket_alloc(sizeof(*h), b->list);
+    h->data = r;
+
+    b = apr_bucket_shared_make(b, h, 0, 0);
+    b->type = &ap_bucket_type_eor;
+    return b;
+}
+
+AP_DECLARE(apr_bucket *) ap_bucket_eor_create(apr_bucket_alloc_t *list,
+                                              request_rec *r)
+{
+    apr_bucket *b = apr_bucket_alloc(sizeof(*b), list);
+
+    APR_BUCKET_INIT(b);
+    b->free = apr_bucket_free;
+    b->list = list;
+    b = ap_bucket_eor_make(b, r);
+    if (r) {
+        ap_bucket_eor *h = b->data;
+        /*
+         * Register a cleanup for the request pool as the eor bucket could
+         * have been allocated from a different pool then the request pool
+         * e.g. the parent pool of the request pool. In this case
+         * eor_bucket_destroy might be called at a point of time when the
+         * request pool had been already destroyed.
+         * We need to use a pre-cleanup here because a module may create a
+         * sub-pool which is still needed during the log_transaction hook.
+         */
+        apr_pool_pre_cleanup_register(r->pool, &h->data, eor_bucket_cleanup);
+    }
+    return b;
+}
+
+static void eor_bucket_destroy(void *data)
+{
+    ap_bucket_eor *h = data;
+
+    if (apr_bucket_shared_destroy(h)) {
+        request_rec *r = h->data;
+        if (r) {
+            /* eor_bucket_cleanup will be called when the pool gets destroyed */
+            apr_pool_destroy(r->pool);
+        }
+        apr_bucket_free(h);
+    }
+}
+
+AP_DECLARE_DATA const apr_bucket_type_t ap_bucket_type_eor = {
+    "EOR", 5, APR_BUCKET_METADATA,
+    eor_bucket_destroy,
+    eor_bucket_read,
+    apr_bucket_setaside_noop,
+    apr_bucket_split_notimpl,
+    apr_bucket_shared_copy
+};
+