From 9d5b0c381a7961a14d2a94a6b31a4e25a2543eae Mon Sep 17 00:00:00 2001
From: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Date: Tue, 28 Jan 2020 21:23:21 +0100
Subject: Rename sqfs_data_writer_t back to sqfs_block_processor_t

Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
---
 lib/sqfs/block_processor/internal.h | 141 ++++++++++++++++++++++++++++++++++++
 1 file changed, 141 insertions(+)
 create mode 100644 lib/sqfs/block_processor/internal.h

(limited to 'lib/sqfs/block_processor/internal.h')

diff --git a/lib/sqfs/block_processor/internal.h b/lib/sqfs/block_processor/internal.h
new file mode 100644
index 0000000..40871b9
--- /dev/null
+++ b/lib/sqfs/block_processor/internal.h
@@ -0,0 +1,141 @@
+/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/*
+ * internal.h
+ *
+ * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
+ */
+#ifndef INTERNAL_H
+#define INTERNAL_H
+
+#include "config.h"
+
+#include "sqfs/block_processor.h"
+#include "sqfs/frag_table.h"
+#include "sqfs/compressor.h"
+#include "sqfs/inode.h"
+#include "sqfs/table.h"
+#include "sqfs/error.h"
+#include "sqfs/block.h"
+#include "sqfs/io.h"
+#include "../util.h"
+
+#include <string.h>
+#include <stdlib.h>
+#include <zlib.h>
+
+#ifdef WITH_PTHREAD
+#include <pthread.h>
+#include <signal.h>
+#elif defined(_WIN32) || defined(__WINDOWS__)
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#endif
+
+
+#define MK_BLK_HASH(chksum, size) \
+	(((sqfs_u64)(size) << 32) | (sqfs_u64)(chksum))
+
+#define INIT_BLOCK_COUNT (128)
+
+
+typedef struct {
+	sqfs_u64 offset;
+	sqfs_u64 hash;
+} blk_info_t;
+
+
+typedef struct compress_worker_t compress_worker_t;
+
+struct sqfs_block_processor_t {
+	/* synchronization primitives */
+#ifdef WITH_PTHREAD
+	pthread_mutex_t mtx;
+	pthread_cond_t queue_cond;
+	pthread_cond_t done_cond;
+#elif defined(_WIN32) || defined(__WINDOWS__)
+	CRITICAL_SECTION mtx;
+	CONDITION_VARIABLE queue_cond;
+	CONDITION_VARIABLE done_cond;
+#endif
+
+	/* needs rw access by worker and main thread */
+	sqfs_block_t *queue;
+	sqfs_block_t *queue_last;
+
+	sqfs_block_t *done;
+	size_t backlog;
+	int status;
+
+	/* used by main thread only */
+	sqfs_u32 enqueue_id;
+	sqfs_u32 dequeue_id;
+
+	unsigned int num_workers;
+	size_t max_backlog;
+
+	size_t devblksz;
+	sqfs_file_t *file;
+
+	sqfs_frag_table_t *frag_tbl;
+
+	sqfs_u64 start;
+
+	size_t file_start;
+	size_t num_blocks;
+	size_t max_blocks;
+	blk_info_t *blocks;
+	sqfs_compressor_t *cmp;
+
+	sqfs_block_t *frag_block;
+
+	const sqfs_block_hooks_t *hooks;
+	void *user_ptr;
+	bool notify_threads;
+
+	/* file API */
+	sqfs_inode_generic_t *inode;
+	sqfs_block_t *blk_current;
+	sqfs_u32 blk_flags;
+	size_t blk_index;
+
+	/* used only by workers */
+	size_t max_block_size;
+
+#if defined(WITH_PTHREAD) || defined(_WIN32) || defined(__WINDOWS__)
+	compress_worker_t *workers[];
+#else
+	sqfs_u8 scratch[];
+#endif
+};
+
+SQFS_INTERNAL int process_completed_block(sqfs_block_processor_t *proc,
+					  sqfs_block_t *block);
+
+SQFS_INTERNAL
+int process_completed_fragment(sqfs_block_processor_t *proc, sqfs_block_t *frag,
+			       sqfs_block_t **blk_out);
+
+SQFS_INTERNAL void free_blk_list(sqfs_block_t *list);
+
+SQFS_INTERNAL
+int block_processor_init(sqfs_block_processor_t *proc, 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_INTERNAL void block_processor_cleanup(sqfs_block_processor_t *proc);
+
+SQFS_INTERNAL
+int block_processor_do_block(sqfs_block_t *block, sqfs_compressor_t *cmp,
+			     sqfs_u8 *scratch, size_t scratch_size);
+
+SQFS_INTERNAL
+int test_and_set_status(sqfs_block_processor_t *proc, int status);
+
+SQFS_INTERNAL
+int append_to_work_queue(sqfs_block_processor_t *proc, sqfs_block_t *block,
+			 bool notify_threads);
+
+SQFS_INTERNAL int wait_completed(sqfs_block_processor_t *proc);
+
+#endif /* INTERNAL_H */
-- 
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