1/* Copyright 2002-2004 Justin Erenkrantz and Greg Stein 2 * 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16#include <apr_pools.h> 17 18#include "serf.h" 19#include "serf_bucket_util.h" 20 21 22typedef struct { 23 serf_bucket_t *stream; 24} barrier_context_t; 25 26 27serf_bucket_t *serf_bucket_barrier_create( 28 serf_bucket_t *stream, 29 serf_bucket_alloc_t *allocator) 30{ 31 barrier_context_t *ctx; 32 33 ctx = serf_bucket_mem_alloc(allocator, sizeof(*ctx)); 34 ctx->stream = stream; 35 36 return serf_bucket_create(&serf_bucket_type_barrier, allocator, ctx); 37} 38 39static apr_status_t serf_barrier_read(serf_bucket_t *bucket, 40 apr_size_t requested, 41 const char **data, apr_size_t *len) 42{ 43 barrier_context_t *ctx = bucket->data; 44 45 return serf_bucket_read(ctx->stream, requested, data, len); 46} 47 48static apr_status_t serf_barrier_read_iovec(serf_bucket_t *bucket, 49 apr_size_t requested, 50 int vecs_size, struct iovec *vecs, 51 int *vecs_used) 52{ 53 barrier_context_t *ctx = bucket->data; 54 55 return serf_bucket_read_iovec(ctx->stream, requested, vecs_size, vecs, 56 vecs_used); 57} 58 59static apr_status_t serf_barrier_readline(serf_bucket_t *bucket, 60 int acceptable, int *found, 61 const char **data, apr_size_t *len) 62{ 63 barrier_context_t *ctx = bucket->data; 64 65 return serf_bucket_readline(ctx->stream, acceptable, found, data, len); 66} 67 68static apr_status_t serf_barrier_peek(serf_bucket_t *bucket, 69 const char **data, 70 apr_size_t *len) 71{ 72 barrier_context_t *ctx = bucket->data; 73 74 return serf_bucket_peek(ctx->stream, data, len); 75} 76 77static void serf_barrier_destroy(serf_bucket_t *bucket) 78{ 79 /* The intent of this bucket is not to let our wrapped buckets be 80 * destroyed. */ 81 82 /* The option is for us to go ahead and 'eat' this bucket now, 83 * or just ignore the deletion entirely. 84 */ 85 serf_default_destroy_and_data(bucket); 86} 87 88const serf_bucket_type_t serf_bucket_type_barrier = { 89 "BARRIER", 90 serf_barrier_read, 91 serf_barrier_readline, 92 serf_barrier_read_iovec, 93 serf_default_read_for_sendfile, 94 serf_default_read_bucket, 95 serf_barrier_peek, 96 serf_barrier_destroy, 97}; 98