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/* 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 test_and_set_status(sqfs_data_writer_t *proc, int status)
{
if (proc->status == 0)
proc->status = status;
return proc->status;
}
int 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_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;
}
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