160 lines
4.2 KiB
C
160 lines
4.2 KiB
C
/* Copyright 2002-2004 Justin Erenkrantz and Greg Stein
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <apr_pools.h>
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#include "serf.h"
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#include "serf_bucket_util.h"
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typedef struct {
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const char *original;
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const char *current;
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apr_size_t remaining;
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serf_simple_freefunc_t freefunc;
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void *baton;
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} simple_context_t;
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static void free_copied_data(void *baton, const char *data)
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{
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serf_bucket_mem_free(baton, (char*)data);
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}
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serf_bucket_t *serf_bucket_simple_create(
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const char *data,
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apr_size_t len,
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serf_simple_freefunc_t freefunc,
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void *freefunc_baton,
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serf_bucket_alloc_t *allocator)
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{
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simple_context_t *ctx;
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ctx = serf_bucket_mem_alloc(allocator, sizeof(*ctx));
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ctx->original = ctx->current = data;
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ctx->remaining = len;
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ctx->freefunc = freefunc;
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ctx->baton = freefunc_baton;
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return serf_bucket_create(&serf_bucket_type_simple, allocator, ctx);
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}
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serf_bucket_t *serf_bucket_simple_copy_create(
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const char *data, apr_size_t len,
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serf_bucket_alloc_t *allocator)
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{
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simple_context_t *ctx;
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ctx = serf_bucket_mem_alloc(allocator, sizeof(*ctx));
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ctx->original = ctx->current = serf_bucket_mem_alloc(allocator, len);
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memcpy((char*)ctx->original, data, len);
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ctx->remaining = len;
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ctx->freefunc = free_copied_data;
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ctx->baton = allocator;
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return serf_bucket_create(&serf_bucket_type_simple, allocator, ctx);
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}
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serf_bucket_t *serf_bucket_simple_own_create(
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const char *data, apr_size_t len,
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serf_bucket_alloc_t *allocator)
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{
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simple_context_t *ctx;
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ctx = serf_bucket_mem_alloc(allocator, sizeof(*ctx));
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ctx->original = ctx->current = data;
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ctx->remaining = len;
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ctx->freefunc = free_copied_data;
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ctx->baton = allocator;
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return serf_bucket_create(&serf_bucket_type_simple, allocator, ctx);
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}
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static apr_status_t serf_simple_read(serf_bucket_t *bucket,
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apr_size_t requested,
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const char **data, apr_size_t *len)
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{
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simple_context_t *ctx = bucket->data;
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if (requested == SERF_READ_ALL_AVAIL || requested > ctx->remaining)
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requested = ctx->remaining;
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*data = ctx->current;
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*len = requested;
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ctx->current += requested;
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ctx->remaining -= requested;
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return ctx->remaining ? APR_SUCCESS : APR_EOF;
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}
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static apr_status_t serf_simple_readline(serf_bucket_t *bucket,
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int acceptable, int *found,
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const char **data, apr_size_t *len)
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{
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simple_context_t *ctx = bucket->data;
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/* Returned data will be from current position. */
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*data = ctx->current;
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serf_util_readline(&ctx->current, &ctx->remaining, acceptable, found);
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/* See how much ctx->current moved forward. */
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*len = ctx->current - *data;
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return ctx->remaining ? APR_SUCCESS : APR_EOF;
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}
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static apr_status_t serf_simple_peek(serf_bucket_t *bucket,
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const char **data,
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apr_size_t *len)
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{
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simple_context_t *ctx = bucket->data;
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/* return whatever we have left */
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*data = ctx->current;
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*len = ctx->remaining;
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/* we returned everything this bucket will ever hold */
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return APR_EOF;
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}
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static void serf_simple_destroy(serf_bucket_t *bucket)
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{
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simple_context_t *ctx = bucket->data;
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if (ctx->freefunc)
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(*ctx->freefunc)(ctx->baton, ctx->original);
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serf_default_destroy_and_data(bucket);
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}
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const serf_bucket_type_t serf_bucket_type_simple = {
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"SIMPLE",
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serf_simple_read,
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serf_simple_readline,
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serf_default_read_iovec,
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serf_default_read_for_sendfile,
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serf_default_read_bucket,
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serf_simple_peek,
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serf_simple_destroy,
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};
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