Adding upstream version 2.4.38.upstream/2.4.38upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 101 insertions, 0 deletions

diff --git a/modules/http2/mod_http2.h b/modules/http2/mod_http2.h
new file mode 100644
index 0000000..7a1b49a
--- /dev/null
+++ b/modules/http2/mod_http2.h
@@ -0,0 +1,101 @@
+/* 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.
+ */
+
+#ifndef __MOD_HTTP2_H__
+#define __MOD_HTTP2_H__
+
+/** The http2_var_lookup() optional function retrieves HTTP2 environment
+ * variables. */
+APR_DECLARE_OPTIONAL_FN(char *, 
+                        http2_var_lookup, (apr_pool_t *, server_rec *,
+                                           conn_rec *, request_rec *,  char *));
+
+/** An optional function which returns non-zero if the given connection
+ * or its master connection is using HTTP/2. */
+APR_DECLARE_OPTIONAL_FN(int, 
+                        http2_is_h2, (conn_rec *));
+
+
+/*******************************************************************************
+ * HTTP/2 request engines
+ ******************************************************************************/
+ 
+struct apr_thread_cond_t;
+
+typedef struct h2_req_engine h2_req_engine;
+
+typedef void http2_output_consumed(void *ctx, conn_rec *c, apr_off_t consumed);
+
+/**
+ * Initialize a h2_req_engine. The structure will be passed in but
+ * only the name and master are set. The function should initialize
+ * all fields.
+ * @param engine the allocated, partially filled structure
+ * @param r      the first request to process, or NULL
+ */
+typedef apr_status_t http2_req_engine_init(h2_req_engine *engine, 
+                                           const char *id, 
+                                           const char *type,
+                                           apr_pool_t *pool, 
+                                           apr_size_t req_buffer_size,
+                                           request_rec *r,
+                                           http2_output_consumed **pconsumed,
+                                           void **pbaton);
+
+/**
+ * Push a request to an engine with the specified name for further processing.
+ * If no such engine is available, einit is not NULL, einit is called 
+ * with a new engine record and the caller is responsible for running the
+ * new engine instance.
+ * @param engine_type the type of the engine to add the request to
+ * @param r           the request to push to an engine for processing
+ * @param einit       an optional initialization callback for a new engine 
+ *                    of the requested type, should no instance be available.
+ *                    By passing a non-NULL callback, the caller is willing
+ *                    to init and run a new engine itself.
+ * @return APR_SUCCESS iff slave was successfully added to an engine
+ */
+APR_DECLARE_OPTIONAL_FN(apr_status_t, 
+                        http2_req_engine_push, (const char *engine_type, 
+                                                request_rec *r,
+                                                http2_req_engine_init *einit));
+
+/**
+ * Get a new request for processing in this engine.
+ * @param engine      the engine which is done processing the slave
+ * @param block       if call should block waiting for request to come
+ * @param capacity    how many parallel requests are acceptable
+ * @param pr          the request that needs processing or NULL
+ * @return APR_SUCCESS if new request was assigned
+ *         APR_EAGAIN  if no new request is available
+ *         APR_EOF          if engine may shut down, as no more request will be scheduled
+ *         APR_ECONNABORTED if the engine needs to shut down immediately
+ */
+APR_DECLARE_OPTIONAL_FN(apr_status_t, 
+                        http2_req_engine_pull, (h2_req_engine *engine, 
+                                                apr_read_type_e block,
+                                                int capacity,
+                                                request_rec **pr));
+APR_DECLARE_OPTIONAL_FN(void, 
+                        http2_req_engine_done, (h2_req_engine *engine, 
+                                                conn_rec *rconn,
+                                                apr_status_t status));
+
+APR_DECLARE_OPTIONAL_FN(void,
+                        http2_get_num_workers, (server_rec *s,
+                                                int *minw, int *max));
+
+#endif