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Diffstat (limited to 'lib/sqfs/data_writer/serial.c')
-rw-r--r--lib/sqfs/data_writer/serial.c96
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;
+}