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/* dump-index.c -- implements the svn_fs_fs__dump_index private API
*
* ====================================================================
* 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 "svn_pools.h"
#include "private/svn_fs_fs_private.h"
#include "index.h"
#include "rev_file.h"
#include "util.h"
#include "../libsvn_fs/fs-loader.h"
svn_error_t *
svn_fs_fs__dump_index(svn_fs_t *fs,
svn_revnum_t revision,
svn_fs_fs__dump_index_func_t callback_func,
void *callback_baton,
svn_cancel_func_t cancel_func,
void *cancel_baton,
apr_pool_t *scratch_pool)
{
fs_fs_data_t *ffd = fs->fsap_data;
svn_fs_fs__revision_file_t *rev_file;
int i;
apr_off_t offset, max_offset;
apr_pool_t *iterpool = svn_pool_create(scratch_pool);
/* Check the FS format. */
if (! svn_fs_fs__use_log_addressing(fs))
return svn_error_create(SVN_ERR_FS_UNSUPPORTED_FORMAT, NULL, NULL);
/* Revision & index file access object. */
SVN_ERR(svn_fs_fs__open_pack_or_rev_file(&rev_file, fs, revision,
scratch_pool, iterpool));
/* Offset range to cover. */
SVN_ERR(svn_fs_fs__p2l_get_max_offset(&max_offset, fs, rev_file, revision,
scratch_pool));
/* Walk through all P2L index entries in offset order. */
for (offset = 0; offset < max_offset; )
{
apr_array_header_t *entries;
/* Read entries for the next block. There will be no overlaps since
* we start at the first offset not covered. */
svn_pool_clear(iterpool);
SVN_ERR(svn_fs_fs__p2l_index_lookup(&entries, fs, rev_file, revision,
offset, ffd->p2l_page_size,
iterpool, iterpool));
/* Print entries for this block, one line per entry. */
for (i = 0; i < entries->nelts && offset < max_offset; ++i)
{
const svn_fs_fs__p2l_entry_t *entry
= &APR_ARRAY_IDX(entries, i, const svn_fs_fs__p2l_entry_t);
offset = entry->offset + entry->size;
/* Cancellation support */
if (cancel_func)
SVN_ERR(cancel_func(cancel_baton));
/* Invoke processing callback. */
SVN_ERR(callback_func(entry, callback_baton, iterpool));
}
}
svn_pool_destroy(iterpool);
return SVN_NO_ERROR;
}
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