1 files changed, 36 insertions, 27 deletions

diff --git a/lib/sqfs/block_processor/serial.c b/lib/sqfs/block_processor/serial.c
index e44ce17..2e00198 100644
--- a/lib/sqfs/block_processor/serial.c
+++ b/lib/sqfs/block_processor/serial.c
@@ -7,6 +7,12 @@
 #define SQFS_BUILDING_DLL
 #include "internal.h"
 
+typedef struct {
+	sqfs_block_processor_t base;
+	int status;
+	sqfs_u8 scratch[];
+} serial_block_processor_t;
+
 static void block_processor_destroy(sqfs_object_t *obj)
 {
 	sqfs_block_processor_t *proc = (sqfs_block_processor_t *)obj;
@@ -23,71 +29,74 @@ sqfs_block_processor_t *sqfs_block_processor_create(size_t max_block_size,
 						    sqfs_block_writer_t *wr,
 						    sqfs_frag_table_t *tbl)
 {
-	sqfs_block_processor_t *proc;
+	serial_block_processor_t *proc;
 	(void)num_workers; (void)max_backlog;
 
 	proc = alloc_flex(sizeof(*proc), 1, max_block_size);
 	if (proc == NULL)
 		return NULL;
 
-	proc->max_block_size = max_block_size;
-	proc->cmp = cmp;
-	proc->frag_tbl = tbl;
-	proc->wr = wr;
-	proc->stats.size = sizeof(proc->stats);
+	proc->base.max_block_size = max_block_size;
+	proc->base.cmp = cmp;
+	proc->base.frag_tbl = tbl;
+	proc->base.wr = wr;
+	proc->base.stats.size = sizeof(proc->base.stats);
 	((sqfs_object_t *)proc)->destroy = block_processor_destroy;
-	return proc;
+	return (sqfs_block_processor_t *)proc;
 }
 
 int append_to_work_queue(sqfs_block_processor_t *proc, sqfs_block_t *block)
 {
+	serial_block_processor_t *sproc = (serial_block_processor_t *)proc;
 	sqfs_block_t *fragblk = NULL;
 
-	if (proc->status != 0)
+	if (sproc->status != 0)
 		goto done;
 
-	proc->status = block_processor_do_block(block, proc->cmp,
-						proc->scratch,
-						proc->max_block_size);
-	if (proc->status != 0)
+	sproc->status = block_processor_do_block(block, proc->cmp,
+						 sproc->scratch,
+						 proc->max_block_size);
+	if (sproc->status != 0)
 		goto done;
 
 	if (block->flags & SQFS_BLK_IS_FRAGMENT) {
-		proc->status = process_completed_fragment(proc, block,
-							  &fragblk);
+		sproc->status = process_completed_fragment(proc, block,
+							   &fragblk);
 		if (fragblk == NULL)
 			goto done;
 
 		free(block);
 		block = fragblk;
 
-		proc->status = block_processor_do_block(block, proc->cmp,
-							proc->scratch,
-							proc->max_block_size);
-		if (proc->status != 0)
+		sproc->status = block_processor_do_block(block, proc->cmp,
+							 sproc->scratch,
+							 proc->max_block_size);
+		if (sproc->status != 0)
 			goto done;
 	}
 
-	proc->status = process_completed_block(proc, block);
+	sproc->status = process_completed_block(proc, block);
 done:
 	free(block);
-	return proc->status;
+	return sproc->status;
 }
 
 int sqfs_block_processor_finish(sqfs_block_processor_t *proc)
 {
-	if (proc->frag_block == NULL || proc->status != 0)
+	serial_block_processor_t *sproc = (serial_block_processor_t *)proc;
+
+	if (proc->frag_block == NULL || sproc->status != 0)
 		goto out;
 
-	proc->status = block_processor_do_block(proc->frag_block, proc->cmp,
-						proc->scratch,
-						proc->max_block_size);
-	if (proc->status != 0)
+	sproc->status = block_processor_do_block(proc->frag_block, proc->cmp,
+						 sproc->scratch,
+						 proc->max_block_size);
+	if (sproc->status != 0)
 		goto out;
 
-	proc->status = process_completed_block(proc, proc->frag_block);
+	sproc->status = process_completed_block(proc, proc->frag_block);
 out:
 	free(proc->frag_block);
 	proc->frag_block = NULL;
-	return proc->status;
+	return sproc->status;
 }