From 7ca19d23cb4913b5dabfdf3469852ec9f2c0f8d7 Mon Sep 17 00:00:00 2001 From: David Oberhollenzer Date: Tue, 13 Aug 2019 14:11:25 +0200 Subject: Add block processor data structure The interface is designed for parallel, asynchronuous processing of data blocks with an I/O callback that handles the serialized result. The underlying implementation is currently still synchronuous. Signed-off-by: David Oberhollenzer --- lib/comp/create_block.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 lib/comp/create_block.c (limited to 'lib/comp/create_block.c') diff --git a/lib/comp/create_block.c b/lib/comp/create_block.c new file mode 100644 index 0000000..e410091 --- /dev/null +++ b/lib/comp/create_block.c @@ -0,0 +1,37 @@ +/* SPDX-License-Identifier: GPL-3.0-or-later */ +/* + * create_block.c + * + * Copyright (C) 2019 David Oberhollenzer + */ +#include "config.h" + +#include "block_processor.h" +#include "util.h" + +#include +#include +#include + +block_t *create_block(const char *filename, int fd, size_t size, + void *user, uint32_t flags) +{ + block_t *blk = calloc(1, sizeof(*blk) + size); + + if (blk == NULL) { + perror(filename); + return NULL; + } + + if (fd >= 0) { + if (read_data(filename, fd, blk->data, size)) { + free(blk); + return NULL; + } + } + + blk->size = size; + blk->user = user; + blk->flags = flags; + return blk; +} -- cgit v1.2.3