| /* ==================================================================== |
| * 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" |
| |
| |
| typedef struct { |
| const char *original; |
| const char *current; |
| apr_size_t remaining; |
| |
| serf_simple_freefunc_t freefunc; |
| void *baton; |
| |
| } simple_context_t; |
| |
| |
| static void free_copied_data(void *baton, const char *data) |
| { |
| serf_bucket_mem_free(baton, (char*)data); |
| } |
| |
| serf_bucket_t *serf_bucket_simple_create( |
| const char *data, |
| apr_size_t len, |
| serf_simple_freefunc_t freefunc, |
| void *freefunc_baton, |
| serf_bucket_alloc_t *allocator) |
| { |
| simple_context_t *ctx; |
| |
| ctx = serf_bucket_mem_alloc(allocator, sizeof(*ctx)); |
| ctx->original = ctx->current = data; |
| ctx->remaining = len; |
| ctx->freefunc = freefunc; |
| ctx->baton = freefunc_baton; |
| |
| return serf_bucket_create(&serf_bucket_type_simple, allocator, ctx); |
| } |
| |
| serf_bucket_t *serf_bucket_simple_copy_create( |
| const char *data, apr_size_t len, |
| serf_bucket_alloc_t *allocator) |
| { |
| simple_context_t *ctx; |
| |
| ctx = serf_bucket_mem_alloc(allocator, sizeof(*ctx)); |
| |
| ctx->original = ctx->current = serf_bucket_mem_alloc(allocator, len); |
| memcpy((char*)ctx->original, data, len); |
| |
| ctx->remaining = len; |
| ctx->freefunc = free_copied_data; |
| ctx->baton = allocator; |
| |
| return serf_bucket_create(&serf_bucket_type_simple, allocator, ctx); |
| } |
| |
| serf_bucket_t *serf_bucket_simple_own_create( |
| const char *data, apr_size_t len, |
| serf_bucket_alloc_t *allocator) |
| { |
| simple_context_t *ctx; |
| |
| ctx = serf_bucket_mem_alloc(allocator, sizeof(*ctx)); |
| |
| ctx->original = ctx->current = data; |
| |
| ctx->remaining = len; |
| ctx->freefunc = free_copied_data; |
| ctx->baton = allocator; |
| |
| return serf_bucket_create(&serf_bucket_type_simple, allocator, ctx); |
| } |
| |
| static apr_status_t serf_simple_read(serf_bucket_t *bucket, |
| apr_size_t requested, |
| const char **data, apr_size_t *len) |
| { |
| simple_context_t *ctx = bucket->data; |
| |
| if (requested == SERF_READ_ALL_AVAIL || requested > ctx->remaining) |
| requested = ctx->remaining; |
| |
| *data = ctx->current; |
| *len = requested; |
| |
| ctx->current += requested; |
| ctx->remaining -= requested; |
| |
| return ctx->remaining ? APR_SUCCESS : APR_EOF; |
| } |
| |
| static apr_status_t serf_simple_readline(serf_bucket_t *bucket, |
| int acceptable, int *found, |
| const char **data, apr_size_t *len) |
| { |
| simple_context_t *ctx = bucket->data; |
| |
| /* Returned data will be from current position. */ |
| *data = ctx->current; |
| serf_util_readline(&ctx->current, &ctx->remaining, acceptable, found); |
| |
| /* See how much ctx->current moved forward. */ |
| *len = ctx->current - *data; |
| |
| return ctx->remaining ? APR_SUCCESS : APR_EOF; |
| } |
| |
| static apr_status_t serf_simple_peek(serf_bucket_t *bucket, |
| const char **data, |
| apr_size_t *len) |
| { |
| simple_context_t *ctx = bucket->data; |
| |
| /* return whatever we have left */ |
| *data = ctx->current; |
| *len = ctx->remaining; |
| |
| /* we returned everything this bucket will ever hold */ |
| return APR_EOF; |
| } |
| |
| static void serf_simple_destroy(serf_bucket_t *bucket) |
| { |
| simple_context_t *ctx = bucket->data; |
| |
| if (ctx->freefunc) |
| (*ctx->freefunc)(ctx->baton, ctx->original); |
| |
| serf_default_destroy_and_data(bucket); |
| } |
| |
| |
| const serf_bucket_type_t serf_bucket_type_simple = { |
| "SIMPLE", |
| serf_simple_read, |
| serf_simple_readline, |
| serf_default_read_iovec, |
| serf_default_read_for_sendfile, |
| serf_default_read_bucket, |
| serf_simple_peek, |
| serf_simple_destroy, |
| }; |