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-rw-r--r--modules/http2/h2_bucket_eos.c112
1 files changed, 112 insertions, 0 deletions
diff --git a/modules/http2/h2_bucket_eos.c b/modules/http2/h2_bucket_eos.c
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+++ b/modules/http2/h2_bucket_eos.c
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+/* 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 <assert.h>
+#include <stddef.h>
+
+#include <httpd.h>
+#include <http_core.h>
+#include <http_connection.h>
+#include <http_log.h>
+#include <http_protocol.h>
+
+#include "h2_private.h"
+#include "h2.h"
+#include "h2_mplx.h"
+#include "h2_stream.h"
+#include "h2_bucket_eos.h"
+
+typedef struct {
+ apr_bucket_refcount refcount;
+ h2_stream *stream;
+} h2_bucket_eos;
+
+static apr_status_t bucket_cleanup(void *data)
+{
+ h2_stream **pstream = data;
+
+ if (*pstream) {
+ /* If bucket_destroy is called after us, this prevents
+ * bucket_destroy from trying to destroy the stream again. */
+ *pstream = NULL;
+ }
+ return APR_SUCCESS;
+}
+
+static apr_status_t bucket_read(apr_bucket *b, const char **str,
+ apr_size_t *len, apr_read_type_e block)
+{
+ (void)b;
+ (void)block;
+ *str = NULL;
+ *len = 0;
+ return APR_SUCCESS;
+}
+
+apr_bucket *h2_bucket_eos_make(apr_bucket *b, h2_stream *stream)
+{
+ h2_bucket_eos *h;
+
+ h = apr_bucket_alloc(sizeof(*h), b->list);
+ h->stream = stream;
+
+ b = apr_bucket_shared_make(b, h, 0, 0);
+ b->type = &h2_bucket_type_eos;
+
+ return b;
+}
+
+apr_bucket *h2_bucket_eos_create(apr_bucket_alloc_t *list,
+ h2_stream *stream)
+{
+ apr_bucket *b = apr_bucket_alloc(sizeof(*b), list);
+
+ APR_BUCKET_INIT(b);
+ b->free = apr_bucket_free;
+ b->list = list;
+ b = h2_bucket_eos_make(b, stream);
+ if (stream) {
+ h2_bucket_eos *h = b->data;
+ apr_pool_pre_cleanup_register(stream->pool, &h->stream, bucket_cleanup);
+ }
+ return b;
+}
+
+static void bucket_destroy(void *data)
+{
+ h2_bucket_eos *h = data;
+
+ if (apr_bucket_shared_destroy(h)) {
+ h2_stream *stream = h->stream;
+ if (stream && stream->pool) {
+ apr_pool_cleanup_kill(stream->pool, &h->stream, bucket_cleanup);
+ }
+ apr_bucket_free(h);
+ if (stream) {
+ h2_stream_dispatch(stream, H2_SEV_EOS_SENT);
+ }
+ }
+}
+
+const apr_bucket_type_t h2_bucket_type_eos = {
+ "H2EOS", 5, APR_BUCKET_METADATA,
+ bucket_destroy,
+ bucket_read,
+ apr_bucket_setaside_noop,
+ apr_bucket_split_notimpl,
+ apr_bucket_shared_copy
+};
+