1 files changed, 57 insertions, 0 deletions
diff --git a/lib/sqfshelper/statistics.c b/lib/sqfshelper/statistics.c
index 87efc30..26c121f 100644
--- a/lib/sqfshelper/statistics.c
+++ b/lib/sqfshelper/statistics.c
@@ -7,8 +7,65 @@
 #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, uint64_t 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;