From fe39ffb8b90ae4e002ed73fe98617cd590abb467 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 27 Apr 2024 08:33:50 +0200
Subject: Adding upstream version 2.4.56.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 modules/http2/h2_bucket_eos.c | 112 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 112 insertions(+)
 create mode 100644 modules/http2/h2_bucket_eos.c

(limited to 'modules/http2/h2_bucket_eos.c')

diff --git a/modules/http2/h2_bucket_eos.c b/modules/http2/h2_bucket_eos.c
new file mode 100644
index 0000000..fa46a30
--- /dev/null
+++ b/modules/http2/h2_bucket_eos.c
@@ -0,0 +1,112 @@
+/* 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
+};
+
-- 
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