| /* Copyright 2002-2004 Justin Erenkrantz and Greg Stein |
| * |
| * Licensed 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 { |
| apr_file_t *file; |
| |
| serf_databuf_t databuf; |
| |
| } file_context_t; |
| |
| |
| static apr_status_t file_reader(void *baton, apr_size_t bufsize, |
| char *buf, apr_size_t *len) |
| { |
| file_context_t *ctx = baton; |
| |
| *len = bufsize; |
| return apr_file_read(ctx->file, buf, len); |
| } |
| |
| serf_bucket_t *serf_bucket_file_create( |
| apr_file_t *file, |
| serf_bucket_alloc_t *allocator) |
| { |
| file_context_t *ctx; |
| #if APR_HAS_MMAP |
| apr_finfo_t finfo; |
| const char *file_path; |
| |
| /* See if we'd be better off mmap'ing this file instead. |
| * |
| * Note that there is a failure case here that we purposely fall through: |
| * if a file is buffered, apr_mmap will reject it. However, on older |
| * versions of APR, we have no way of knowing this - but apr_mmap_create |
| * will check for this and return APR_EBADF. |
| */ |
| apr_file_name_get(&file_path, file); |
| apr_stat(&finfo, file_path, APR_FINFO_SIZE, |
| serf_bucket_allocator_get_pool(allocator)); |
| if (APR_MMAP_CANDIDATE(finfo.size)) { |
| apr_status_t status; |
| apr_mmap_t *file_mmap; |
| status = apr_mmap_create(&file_mmap, file, 0, finfo.size, |
| APR_MMAP_READ, |
| serf_bucket_allocator_get_pool(allocator)); |
| |
| if (status == APR_SUCCESS) { |
| return serf_bucket_mmap_create(file_mmap, allocator); |
| } |
| } |
| #endif |
| |
| /* Oh, well. */ |
| ctx = serf_bucket_mem_alloc(allocator, sizeof(*ctx)); |
| ctx->file = file; |
| |
| serf_databuf_init(&ctx->databuf); |
| ctx->databuf.read = file_reader; |
| ctx->databuf.read_baton = ctx; |
| |
| return serf_bucket_create(&serf_bucket_type_file, allocator, ctx); |
| } |
| |
| static apr_status_t serf_file_read(serf_bucket_t *bucket, |
| apr_size_t requested, |
| const char **data, apr_size_t *len) |
| { |
| file_context_t *ctx = bucket->data; |
| |
| return serf_databuf_read(&ctx->databuf, requested, data, len); |
| } |
| |
| static apr_status_t serf_file_readline(serf_bucket_t *bucket, |
| int acceptable, int *found, |
| const char **data, apr_size_t *len) |
| { |
| file_context_t *ctx = bucket->data; |
| |
| return serf_databuf_readline(&ctx->databuf, acceptable, found, data, len); |
| } |
| |
| static apr_status_t serf_file_peek(serf_bucket_t *bucket, |
| const char **data, |
| apr_size_t *len) |
| { |
| file_context_t *ctx = bucket->data; |
| |
| return serf_databuf_peek(&ctx->databuf, data, len); |
| } |
| |
| const serf_bucket_type_t serf_bucket_type_file = { |
| "FILE", |
| serf_file_read, |
| serf_file_readline, |
| serf_default_read_iovec, |
| serf_default_read_for_sendfile, |
| serf_default_read_bucket, |
| serf_file_peek, |
| serf_default_destroy_and_data, |
| }; |