freebsd-dev/contrib/serf/buckets/file_buckets.c
Peter Wemm 937a200089 Introduce svnlite so that we can check out our source code again.
This is actually a fully functional build except:
* All internal shared libraries are static linked to make sure there
  is no interference with ports (and to reduce build time).
* It does not have the python/perl/etc plugin or API support.
* By default, it installs as "svnlite" rather than "svn".
* If WITH_SVN added in make.conf, you get "svn".
* If WITHOUT_SVNLITE is in make.conf, this is completely disabled.

To be absolutely clear, this is not intended for any use other than
checking out freebsd source and committing, like we once did with cvs.

It should be usable for small scale local repositories that don't
need the python/perl plugin architecture.
2013-06-18 02:53:45 +00:00

118 lines
3.5 KiB
C

/* 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,
};