Rename block processor to sqfs_data_writer_t

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

1 files changed, 96 insertions, 0 deletions

diff --git a/lib/sqfs/data_writer/serial.c b/lib/sqfs/data_writer/serial.c
new file mode 100644
index 0000000..38dcc58
--- /dev/null
+++ b/lib/sqfs/data_writer/serial.c
@@ -0,0 +1,96 @@
+/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/*
+ * serial.c
+ *
+ * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
+ */
+#define SQFS_BUILDING_DLL
+#include "internal.h"
+
+sqfs_data_writer_t *sqfs_data_writer_create(size_t max_block_size,
+					    sqfs_compressor_t *cmp,
+					    unsigned int num_workers,
+					    size_t max_backlog,
+					    size_t devblksz,
+					    sqfs_file_t *file)
+{
+	sqfs_data_writer_t *proc;
+
+	proc = alloc_flex(sizeof(*proc), 1, max_block_size);
+
+	if (proc == NULL)
+		return NULL;
+
+	if (data_writer_init(proc, max_block_size, cmp, num_workers,
+			     max_backlog, devblksz, file)) {
+		data_writer_cleanup(proc);
+		return NULL;
+	}
+
+	return proc;
+}
+
+void sqfs_data_writer_destroy(sqfs_data_writer_t *proc)
+{
+	data_writer_cleanup(proc);
+}
+
+int sqfs_data_writer_enqueue(sqfs_data_writer_t *proc, sqfs_block_t *block)
+{
+	sqfs_block_t *fragblk = NULL;
+
+	if (proc->status != 0) {
+		free(block);
+		return proc->status;
+	}
+
+	if (block->flags & ~SQFS_BLK_USER_SETTABLE_FLAGS) {
+		proc->status = SQFS_ERROR_UNSUPPORTED;
+		free(block);
+		return proc->status;
+	}
+
+	if (block->flags & SQFS_BLK_IS_FRAGMENT) {
+		block->checksum = crc32(0, block->data, block->size);
+
+		proc->status = process_completed_fragment(proc, block,
+							  &fragblk);
+		free(block);
+
+		if (proc->status != 0) {
+			free(fragblk);
+			return proc->status;
+		}
+
+		if (fragblk == NULL)
+			return 0;
+
+		block = fragblk;
+	}
+
+	proc->status = data_writer_do_block(block, proc->cmp, proc->scratch,
+					    proc->max_block_size);
+
+	if (proc->status == 0)
+		proc->status = process_completed_block(proc, block);
+
+	free(block);
+	return proc->status;
+}
+
+int sqfs_data_writer_finish(sqfs_data_writer_t *proc)
+{
+	if (proc->status != 0 || proc->frag_block == NULL)
+		return proc->status;
+
+	proc->status = data_writer_do_block(proc->frag_block, proc->cmp,
+					    proc->scratch,
+					    proc->max_block_size);
+
+	if (proc->status == 0)
+		proc->status = process_completed_block(proc, proc->frag_block);
+
+	free(proc->frag_block);
+	proc->frag_block = NULL;
+	return proc->status;
+}