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-rw-r--r--debug/full_flush.c105
1 files changed, 105 insertions, 0 deletions
diff --git a/debug/full_flush.c b/debug/full_flush.c
new file mode 100644
index 00000000..697b4bb1
--- /dev/null
+++ b/debug/full_flush.c
@@ -0,0 +1,105 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file full_flush.c
+/// \brief Encode files using LZMA_FULL_FLUSH
+//
+// Copyright (C) 2008 Lasse Collin
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Lesser General Public License for more details.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include "sysdefs.h"
+#include <stdio.h>
+
+
+static lzma_stream strm = LZMA_STREAM_INIT;
+static FILE *file_in;
+
+
+static void
+encode(size_t size, lzma_action action)
+{
+ static const size_t CHUNK = 64;
+ uint8_t in[CHUNK];
+ uint8_t out[CHUNK];
+ lzma_ret ret;
+
+ do {
+ if (strm.avail_in == 0 && size > 0) {
+ const size_t amount = MIN(size, CHUNK);
+ strm.avail_in = fread(in, 1, amount, file_in);
+ strm.next_in = in;
+ size -= amount; // Intentionally not using avail_in.
+ }
+
+ strm.next_out = out;
+ strm.avail_out = CHUNK;
+
+ ret = lzma_code(&strm, size == 0 ? action : LZMA_RUN);
+
+ if (ret != LZMA_OK && ret != LZMA_STREAM_END) {
+ fprintf(stderr, "%s:%u: %s: ret == %d\n",
+ __FILE__, __LINE__, __func__, ret);
+ exit(1);
+ }
+
+ fwrite(out, 1, CHUNK - strm.avail_out, stdout);
+
+ } while (size > 0 || strm.avail_out == 0);
+
+ if ((action == LZMA_RUN && ret != LZMA_OK)
+ || (action != LZMA_RUN && ret != LZMA_STREAM_END)) {
+ fprintf(stderr, "%s:%u: %s: ret == %d\n",
+ __FILE__, __LINE__, __func__, ret);
+ exit(1);
+ }
+}
+
+
+int
+main(int argc, char **argv)
+{
+ lzma_init_encoder();
+
+ file_in = argc > 1 ? fopen(argv[1], "rb") : stdin;
+
+ // Config
+ lzma_options_stream opt_stream = {
+ .check = LZMA_CHECK_CRC32,
+ .has_crc32 = true,
+ .uncompressed_size = LZMA_VLI_VALUE_UNKNOWN,
+ .alignment = 0,
+ };
+ opt_stream.filters[0].id = LZMA_VLI_VALUE_UNKNOWN;
+ opt_stream.metadata_filters[0].id = LZMA_VLI_VALUE_UNKNOWN;
+ opt_stream.header = NULL;
+ opt_stream.footer = NULL;
+
+ // Init
+ if (lzma_stream_encoder_multi(&strm, &opt_stream) != LZMA_OK) {
+ fprintf(stderr, "init failed\n");
+ exit(1);
+ }
+
+ // Encoding
+ encode(0, LZMA_FULL_FLUSH);
+ encode(6, LZMA_FULL_FLUSH);
+ encode(0, LZMA_FULL_FLUSH);
+ encode(7, LZMA_FULL_FLUSH);
+ encode(0, LZMA_FULL_FLUSH);
+ encode(0, LZMA_FINISH);
+
+ // Clean up
+ lzma_end(&strm);
+
+ return 0;
+}