118 lines
3.5 KiB
C
118 lines
3.5 KiB
C
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/* 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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apr_file_t *file;
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serf_databuf_t databuf;
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} file_context_t;
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static apr_status_t file_reader(void *baton, apr_size_t bufsize,
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char *buf, apr_size_t *len)
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{
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file_context_t *ctx = baton;
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*len = bufsize;
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return apr_file_read(ctx->file, buf, len);
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}
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serf_bucket_t *serf_bucket_file_create(
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apr_file_t *file,
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serf_bucket_alloc_t *allocator)
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{
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file_context_t *ctx;
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#if APR_HAS_MMAP
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apr_finfo_t finfo;
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const char *file_path;
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/* See if we'd be better off mmap'ing this file instead.
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*
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* Note that there is a failure case here that we purposely fall through:
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* if a file is buffered, apr_mmap will reject it. However, on older
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* versions of APR, we have no way of knowing this - but apr_mmap_create
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* will check for this and return APR_EBADF.
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*/
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apr_file_name_get(&file_path, file);
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apr_stat(&finfo, file_path, APR_FINFO_SIZE,
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serf_bucket_allocator_get_pool(allocator));
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if (APR_MMAP_CANDIDATE(finfo.size)) {
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apr_status_t status;
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apr_mmap_t *file_mmap;
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status = apr_mmap_create(&file_mmap, file, 0, finfo.size,
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APR_MMAP_READ,
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serf_bucket_allocator_get_pool(allocator));
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if (status == APR_SUCCESS) {
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return serf_bucket_mmap_create(file_mmap, allocator);
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}
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}
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#endif
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/* Oh, well. */
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ctx = serf_bucket_mem_alloc(allocator, sizeof(*ctx));
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ctx->file = file;
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serf_databuf_init(&ctx->databuf);
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ctx->databuf.read = file_reader;
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ctx->databuf.read_baton = ctx;
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return serf_bucket_create(&serf_bucket_type_file, allocator, ctx);
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}
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static apr_status_t serf_file_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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file_context_t *ctx = bucket->data;
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return serf_databuf_read(&ctx->databuf, requested, data, len);
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}
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static apr_status_t serf_file_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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file_context_t *ctx = bucket->data;
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return serf_databuf_readline(&ctx->databuf, acceptable, found, data, len);
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}
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static apr_status_t serf_file_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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file_context_t *ctx = bucket->data;
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return serf_databuf_peek(&ctx->databuf, data, len);
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}
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const serf_bucket_type_t serf_bucket_type_file = {
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"FILE",
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serf_file_read,
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serf_file_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_file_peek,
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serf_default_destroy_and_data,
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};
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