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/* SPDX-License-Identifier: GPL-3.0-or-later */
/*
* statistics.c
*
* Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
*/
#include "config.h"
#include "highlevel.h"
#include "sqfs/block.h"
#include <stdio.h>
static void post_block_write(void *user, const sqfs_block_t *block,
sqfs_file_t *file)
{
data_writer_stats_t *stats = user;
(void)file;
if (block->size == 0)
return;
if (block->flags & SQFS_BLK_FRAGMENT_BLOCK) {
stats->frag_blocks_written += 1;
} else {
stats->blocks_written += 1;
}
stats->bytes_written += block->size;
}
static void pre_fragment_store(void *user, sqfs_block_t *block)
{
data_writer_stats_t *stats = user;
(void)block;
stats->frag_count += 1;
}
static void notify_blocks_erased(void *user, size_t count, sqfs_u64 bytes)
{
data_writer_stats_t *stats = user;
stats->bytes_written -= bytes;
stats->blocks_written -= count;
stats->duplicate_blocks += count;
}
static void notify_fragment_discard(void *user, const sqfs_block_t *block)
{
data_writer_stats_t *stats = user;
(void)block;
stats->frag_dup += 1;
}
static const sqfs_block_hooks_t hooks = {
.post_block_write = post_block_write,
.pre_fragment_store = pre_fragment_store,
.notify_blocks_erased = notify_blocks_erased,
.notify_fragment_discard = notify_fragment_discard,
};
void register_stat_hooks(sqfs_data_writer_t *data, data_writer_stats_t *stats)
{
sqfs_data_writer_set_hooks(data, stats, &hooks);
}
void sqfs_print_statistics(sqfs_super_t *super, data_writer_stats_t *stats)
{
size_t ratio;
if (stats->bytes_written > 0) {
ratio = (100 * stats->bytes_written) / stats->bytes_read;
} else {
ratio = 100;
}
fputs("---------------------------------------------------\n", stdout);
printf("Input files processed: %zu\n", stats->file_count);
printf("Data blocks actually written: %zu\n", stats->blocks_written);
printf("Fragment blocks written: %zu\n", stats->frag_blocks_written);
printf("Duplicate data blocks omitted: %zu\n", stats->duplicate_blocks);
printf("Sparse blocks omitted: %zu\n", stats->sparse_blocks);
printf("Fragments actually written: %zu\n", stats->frag_count);
printf("Duplicated fragments omitted: %zu\n", stats->frag_dup);
printf("Total number of inodes: %u\n", super->inode_count);
printf("Number of unique group/user IDs: %u\n", super->id_count);
printf("Data compression ratio: %zu%%\n", ratio);
}
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