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Unified Diff: xz/debug/full_flush.c

Issue 2869016: Add an unpatched version of xz, XZ Utils, to /trunk/deps/third_party (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/deps/third_party/
Patch Set: Created 10 years, 6 months ago
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Index: xz/debug/full_flush.c
===================================================================
--- xz/debug/full_flush.c (revision 0)
+++ xz/debug/full_flush.c (revision 0)
@@ -0,0 +1,102 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file full_flush.c
+/// \brief Encode files using LZMA_FULL_FLUSH
+//
+// Author: Lasse Collin
+//
+// This file has been put into the public domain.
+// You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include "sysdefs.h"
+#include "lzma.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 = my_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)
+{
+ file_in = argc > 1 ? fopen(argv[1], "rb") : stdin;
+
+
+ // Config
+ lzma_options_lzma opt_lzma;
+ if (lzma_lzma_preset(&opt_lzma, 1)) {
+ fprintf(stderr, "preset failed\n");
+ exit(1);
+ }
+ lzma_filter filters[LZMA_FILTERS_MAX + 1];
+ filters[0].id = LZMA_FILTER_LZMA2;
+ filters[0].options = &opt_lzma;
+ filters[1].id = LZMA_VLI_UNKNOWN;
+
+ // Init
+ if (lzma_stream_encoder(&strm, filters, LZMA_CHECK_CRC32) != LZMA_OK) {
+ fprintf(stderr, "init failed\n");
+ exit(1);
+ }
+
+// if (lzma_easy_encoder(&strm, 1)) {
+// 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;
+}
Property changes on: xz/debug/full_flush.c
___________________________________________________________________
Added: svn:eol-style
+ LF
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