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/*
* stream_bucket.c : a serf bucket that wraps a readable svn_stream_t
*
* ====================================================================
* 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 <serf.h>
#include <serf_bucket_util.h>
#include "ra_serf.h"
typedef struct stream_bucket_ctx_t
{
svn_stream_t *stream;
svn_ra_serf__stream_bucket_errfunc_t errfunc;
void *errfunc_baton;
serf_databuf_t databuf;
} stream_bucket_ctx_t;
static apr_status_t
stream_reader(void *baton, apr_size_t bufsize, char *buf, apr_size_t *len)
{
stream_bucket_ctx_t *ctx = baton;
svn_error_t *err;
*len = bufsize;
err = svn_stream_read_full(ctx->stream, buf, len);
if (err)
{
if (ctx->errfunc)
ctx->errfunc(ctx->errfunc_baton, err);
svn_error_clear(err);
return SVN_ERR_RA_SERF_STREAM_BUCKET_READ_ERROR;
}
if (*len == bufsize)
{
return APR_SUCCESS;
}
else
{
svn_error_clear(svn_stream_close(ctx->stream));
return APR_EOF;
}
}
static apr_status_t
stream_bucket_read(serf_bucket_t *bucket, apr_size_t requested,
const char **data, apr_size_t *len)
{
stream_bucket_ctx_t *ctx = bucket->data;
return serf_databuf_read(&ctx->databuf, requested, data, len);
}
static apr_status_t
stream_bucket_readline(serf_bucket_t *bucket, int acceptable,
int *found, const char **data, apr_size_t *len)
{
stream_bucket_ctx_t *ctx = bucket->data;
return serf_databuf_readline(&ctx->databuf, acceptable, found, data, len);
}
static apr_status_t
stream_bucket_peek(serf_bucket_t *bucket, const char **data, apr_size_t *len)
{
stream_bucket_ctx_t *ctx = bucket->data;
return serf_databuf_peek(&ctx->databuf, data, len);
}
static const serf_bucket_type_t stream_bucket_vtable = {
"SVNSTREAM",
stream_bucket_read,
stream_bucket_readline,
serf_default_read_iovec,
serf_default_read_for_sendfile,
serf_default_read_bucket,
stream_bucket_peek,
serf_default_destroy_and_data
};
serf_bucket_t *
svn_ra_serf__create_stream_bucket(svn_stream_t *stream,
serf_bucket_alloc_t *allocator,
svn_ra_serf__stream_bucket_errfunc_t errfunc,
void *errfunc_baton)
{
stream_bucket_ctx_t *ctx;
ctx = serf_bucket_mem_calloc(allocator, sizeof(*ctx));
ctx->stream = stream;
ctx->errfunc = errfunc;
ctx->errfunc_baton = errfunc_baton;
serf_databuf_init(&ctx->databuf);
ctx->databuf.read = stream_reader;
ctx->databuf.read_baton = ctx;
return serf_bucket_create(&stream_bucket_vtable, allocator, ctx);
}
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