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authorDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2019-09-05 15:44:56 +0200
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2019-09-05 15:44:56 +0200
commit6391ed9a18caf89ade24c05083569c66d8daa33b (patch)
tree1e61bee9545d584f79f9040573275ab876febf8d /lib/sqfs/block_processor.c
parent1245c4eeb1eea7a5301f500d001b6db91c3f1283 (diff)
Move block processor from compressor to libsquashfs code
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'lib/sqfs/block_processor.c')
-rw-r--r--lib/sqfs/block_processor.c72
1 files changed, 72 insertions, 0 deletions
diff --git a/lib/sqfs/block_processor.c b/lib/sqfs/block_processor.c
new file mode 100644
index 0000000..3a6926c
--- /dev/null
+++ b/lib/sqfs/block_processor.c
@@ -0,0 +1,72 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * block_processor.c
+ *
+ * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
+ */
+#include "config.h"
+
+#include "sqfs/block_processor.h"
+#include "util.h"
+
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+struct block_processor_t {
+ size_t max_block_size;
+ compressor_t *cmp;
+ block_cb cb;
+ void *user;
+ int status;
+
+ uint8_t scratch[];
+};
+
+block_processor_t *block_processor_create(size_t max_block_size,
+ compressor_t *cmp,
+ unsigned int num_workers,
+ void *user,
+ block_cb callback)
+{
+ block_processor_t *proc = alloc_flex(sizeof(*proc), 1, max_block_size);
+ (void)num_workers;
+
+ if (proc == NULL) {
+ perror("Creating block processor");
+ return NULL;
+ }
+
+ proc->max_block_size = max_block_size;
+ proc->cmp = cmp;
+ proc->cb = callback;
+ proc->user = user;
+ return proc;
+}
+
+void block_processor_destroy(block_processor_t *proc)
+{
+ free(proc);
+}
+
+int block_processor_enqueue(block_processor_t *proc, block_t *block)
+{
+ if (process_block(block, proc->cmp,
+ proc->scratch, proc->max_block_size))
+ goto fail;
+
+ if (proc->cb(proc->user, block))
+ goto fail;
+
+ free(block);
+ return 0;
+fail:
+ free(block);
+ proc->status = -1;
+ return -1;
+}
+
+int block_processor_finish(block_processor_t *proc)
+{
+ return proc->status;
+}