diff options
Diffstat (limited to '')
-rw-r--r-- | debug/Makefile.am | 3 | ||||
-rw-r--r-- | debug/full_flush.c | 105 |
2 files changed, 107 insertions, 1 deletions
diff --git a/debug/Makefile.am b/debug/Makefile.am index 16433b7b..b935300e 100644 --- a/debug/Makefile.am +++ b/debug/Makefile.am @@ -14,7 +14,8 @@ noinst_PROGRAMS = \ repeat \ - sync_flush + sync_flush \ + full_flush AM_CPPFLAGS = \ -I@top_srcdir@/src/common \ 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; +} |