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xz-archive/debug/full_flush.c
Lasse Collin 3b34851de1 Sort of garbage collection commit. :-| Many things are still
broken. API has changed a lot and it will still change a
little more here and there. The command line tool doesn't
have all the required changes to reflect the API changes, so
it's easy to get "internal error" or trigger assertions.
2008-08-28 22:53:15 +03:00

105 lines
2.6 KiB
C

///////////////////////////////////////////////////////////////////////////////
//
/// \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_filter filters[LZMA_BLOCK_FILTERS_MAX + 1];
filters[0].id = LZMA_FILTER_LZMA2;
filters[0].options = (void *)&lzma_preset_lzma[0];
filters[1].id = LZMA_VLI_VALUE_UNKNOWN;
// Init
if (lzma_stream_encoder(&strm, filters, LZMA_CHECK_SHA256) != 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;
}