Rename sqfs_data_writer_t back to sqfs_block_processor_t

Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>

1 files changed, 72 insertions, 0 deletions

diff --git a/lib/sqfs/block_processor/common.c b/lib/sqfs/block_processor/common.c
new file mode 100644
index 0000000..c6375dd
--- /dev/null
+++ b/lib/sqfs/block_processor/common.c
@@ -0,0 +1,72 @@
+/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/*
+ * common.c
+ *
+ * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
+ */
+#define SQFS_BUILDING_DLL
+#include "internal.h"
+
+void free_blk_list(sqfs_block_t *list)
+{
+	sqfs_block_t *it;
+
+	while (list != NULL) {
+		it = list;
+		list = list->next;
+		free(it);
+	}
+}
+
+int block_processor_init(sqfs_block_processor_t *proc, size_t max_block_size,
+			 sqfs_compressor_t *cmp, unsigned int num_workers,
+			 size_t max_backlog, size_t devblksz, sqfs_file_t *file)
+{
+	proc->max_block_size = max_block_size;
+	proc->num_workers = num_workers;
+	proc->max_backlog = max_backlog;
+	proc->devblksz = devblksz;
+	proc->cmp = cmp;
+	proc->file = file;
+	proc->max_blocks = INIT_BLOCK_COUNT;
+
+	proc->frag_tbl = sqfs_frag_table_create(0);
+	if (proc->frag_tbl == NULL)
+		return -1;
+
+	proc->blocks = alloc_array(sizeof(proc->blocks[0]), proc->max_blocks);
+	if (proc->blocks == NULL)
+		return -1;
+
+	return 0;
+}
+
+void block_processor_cleanup(sqfs_block_processor_t *proc)
+{
+	if (proc->frag_tbl != NULL)
+		sqfs_frag_table_destroy(proc->frag_tbl);
+	free_blk_list(proc->queue);
+	free_blk_list(proc->done);
+	free(proc->blk_current);
+	free(proc->frag_block);
+	free(proc->blocks);
+	free(proc);
+}
+
+int sqfs_block_processor_write_fragment_table(sqfs_block_processor_t *proc,
+					      sqfs_super_t *super)
+{
+	return sqfs_frag_table_write(proc->frag_tbl, proc->file,
+				     super, proc->cmp);
+}
+
+int sqfs_block_processor_set_hooks(sqfs_block_processor_t *proc, void *user_ptr,
+				   const sqfs_block_hooks_t *hooks)
+{
+	if (hooks->size != sizeof(*hooks))
+		return SQFS_ERROR_UNSUPPORTED;
+
+	proc->hooks = hooks;
+	proc->user_ptr = user_ptr;
+	return 0;
+}