| /* ==================================================================== |
| * 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 <apr_pools.h> |
| |
| #include "serf.h" |
| #include "serf_bucket_util.h" |
| |
| |
| serf_bucket_t *serf_bucket_barrier_create( |
| serf_bucket_t *stream, |
| serf_bucket_alloc_t *allocator) |
| { |
| return serf_bucket_create(&serf_bucket_type_barrier, allocator, stream); |
| } |
| |
| static apr_status_t serf_barrier_read(serf_bucket_t *bucket, |
| apr_size_t requested, |
| const char **data, apr_size_t *len) |
| { |
| serf_bucket_t *stream = bucket->data; |
| |
| return serf_bucket_read(stream, requested, data, len); |
| } |
| |
| static apr_status_t serf_barrier_read_iovec(serf_bucket_t *bucket, |
| apr_size_t requested, |
| int vecs_size, struct iovec *vecs, |
| int *vecs_used) |
| { |
| serf_bucket_t *stream = bucket->data; |
| |
| return serf_bucket_read_iovec(stream, requested, vecs_size, vecs, vecs_used); |
| } |
| |
| static apr_status_t serf_barrier_read_for_sendfile(serf_bucket_t *bucket, |
| apr_size_t requested, |
| apr_hdtr_t *hdtr, |
| apr_file_t **file, |
| apr_off_t *offset, |
| apr_size_t *len) |
| { |
| serf_bucket_t *stream = bucket->data; |
| |
| return serf_bucket_read_for_sendfile(stream, requested, hdtr, file, |
| offset, len); |
| } |
| |
| static apr_status_t serf_barrier_readline(serf_bucket_t *bucket, |
| int acceptable, int *found, |
| const char **data, apr_size_t *len) |
| { |
| serf_bucket_t *stream = bucket->data; |
| |
| return serf_bucket_readline(stream, acceptable, found, data, len); |
| } |
| |
| static serf_bucket_t *serf_barrier_read_bucket(serf_bucket_t *bucket, |
| const serf_bucket_type_t *type) |
| { |
| serf_bucket_t *stream = bucket->data; |
| |
| /* If a not-NULL bucket is returned then the ownership of that bucket may |
| now have been transferred. (See aggregate bucket read support). |
| |
| This may affect something in our bucket, like any read does, but |
| we still perform our 'barrier job' of keeping the stream alive. */ |
| |
| return serf_bucket_read_bucket(stream, type); |
| } |
| |
| static apr_status_t serf_barrier_peek(serf_bucket_t *bucket, |
| const char **data, |
| apr_size_t *len) |
| { |
| serf_bucket_t *stream = bucket->data; |
| |
| return serf_bucket_peek(stream, data, len); |
| } |
| |
| static void serf_barrier_destroy(serf_bucket_t *bucket) |
| { |
| /* The intent of this bucket is not to let our wrapped buckets be |
| * destroyed. */ |
| |
| /* The option is for us to go ahead and 'eat' this bucket now, |
| * or just ignore the deletion entirely. |
| */ |
| serf_default_destroy(bucket); |
| } |
| |
| static apr_uint64_t serf_barrier_get_remaining(serf_bucket_t *bucket) |
| { |
| serf_bucket_t *stream = bucket->data; |
| |
| return serf_bucket_get_remaining(stream); |
| } |
| |
| static apr_status_t serf_barrier_set_config(serf_bucket_t *bucket, |
| serf_config_t *config) |
| { |
| /* This bucket doesn't need/update any shared config, but we need to pass |
| it along to our wrapped bucket. */ |
| serf_bucket_t *stream = bucket->data; |
| |
| return serf_bucket_set_config(stream, config); |
| } |
| |
| const serf_bucket_type_t serf_bucket_type_barrier = { |
| "BARRIER", |
| serf_barrier_read, |
| serf_barrier_readline, |
| serf_barrier_read_iovec, |
| serf_barrier_read_for_sendfile, |
| serf_buckets_are_v2, |
| serf_barrier_peek, |
| serf_barrier_destroy, |
| serf_barrier_read_bucket, |
| serf_barrier_get_remaining, |
| serf_barrier_set_config, |
| }; |