diff options
Diffstat (limited to 'main.cc')
| -rw-r--r-- | main.cc | 76 |
1 files changed, 30 insertions, 46 deletions
@@ -82,8 +82,8 @@ struct { const char * from; const char * to; } const known_extensions[] = { struct Lzma_options { - int dictionary_size; /* 4 KiB .. 512 MiB */ - int match_len_limit; /* 5 .. 273 */ + int dictionary_size; // 4 KiB .. 512 MiB + int match_len_limit; // 5 .. 273 }; enum Mode { m_compress, m_decompress, m_test }; @@ -107,7 +107,7 @@ void show_help( const long num_online ) " -c, --stdout send output to standard output\n" " -d, --decompress decompress\n" " -f, --force overwrite existing output files\n" - " -F, --recompress force recompression of compressed files\n" + " -F, --recompress force re-compression of compressed files\n" " -k, --keep keep (don't delete) input files\n" " -m, --match-length=<bytes> set match length limit in bytes [36]\n" " -n, --threads=<n> set number of (de)compression threads [%ld]\n" @@ -145,7 +145,7 @@ void show_version() std::printf( "%s %s\n", program_name, PROGVERSION ); std::printf( "Copyright (C) 2009 Laszlo Ersek.\n" "Copyright (C) %s Antonio Diaz Diaz.\n", program_year ); - std::printf( "Using Lzlib %s\n", LZ_version() ); + std::printf( "Using lzlib %s\n", LZ_version() ); std::printf( "License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl.html>\n" "This is free software: you are free to change and redistribute it.\n" "There is NO WARRANTY, to the extent permitted by law.\n" ); @@ -189,7 +189,7 @@ unsigned long long getnum( const char * const ptr, if( !errno && tail[0] ) { - int factor = ( tail[1] == 'i' ) ? 1024 : 1000; + const int factor = ( tail[1] == 'i' ) ? 1024 : 1000; int exponent = 0; bool bad_multiplier = false; switch( tail[0] ) @@ -273,7 +273,7 @@ int open_instream( const char * const name, struct stat * const in_statsp, if( infd < 0 ) { if( verbosity >= 0 ) - std::fprintf( stderr, "%s: Can't open input file '%s': %s.\n", + std::fprintf( stderr, "%s: Can't open input file '%s': %s\n", program_name, name, std::strerror( errno ) ); } else @@ -290,7 +290,7 @@ int open_instream( const char * const name, struct stat * const in_statsp, std::fprintf( stderr, "%s: Input file '%s' is not a regular file%s.\n", program_name, name, ( can_read && !no_ofile ) ? - " and '--stdout' was not specified" : "" ); + ",\n and '--stdout' was not specified" : "" ); close( infd ); infd = -1; } @@ -321,7 +321,7 @@ void set_d_outname( const std::string & name, const int i ) } output_filename = name; output_filename += ".out"; if( verbosity >= 1 ) - std::fprintf( stderr, "%s: Can't guess original name for '%s' -- using '%s'.\n", + std::fprintf( stderr, "%s: Can't guess original name for '%s' -- using '%s'\n", program_name, name.c_str(), output_filename.c_str() ); } @@ -338,7 +338,7 @@ bool open_outstream( const bool force ) std::fprintf( stderr, "%s: Output file '%s' already exists, skipping.\n", program_name, output_filename.c_str() ); else - std::fprintf( stderr, "%s: Can't create output file '%s': %s.\n", + std::fprintf( stderr, "%s: Can't create output file '%s': %s\n", program_name, output_filename.c_str(), std::strerror( errno ) ); } return ( outfd >= 0 ); @@ -388,14 +388,14 @@ void cleanup_and_fail( const int retval ) namespace { - /* Set permissions, owner and times. */ + // Set permissions, owner and times. void close_and_set_permissions( const struct stat * const in_statsp ) { bool warning = false; if( in_statsp ) { const mode_t mode = in_statsp->st_mode; - /* fchown will in many cases return with EPERM, which can be safely ignored. */ + // fchown will in many cases return with EPERM, which can be safely ignored. if( fchown( outfd, in_statsp->st_uid, in_statsp->st_gid ) == 0 ) { if( fchmod( outfd, mode ) != 0 ) warning = true; } else @@ -438,23 +438,6 @@ void set_signals() int verbosity = 0; -void Pretty_print::operator()( const char * const msg ) const - { - if( verbosity >= 0 ) - { - if( first_post ) - { - first_post = false; - std::fprintf( stderr, " %s: ", name_.c_str() ); - for( unsigned i = 0; i < longest_name - name_.size(); ++i ) - std::fprintf( stderr, " " ); - if( !msg ) std::fflush( stderr ); - } - if( msg ) std::fprintf( stderr, "%s\n", msg ); - } - } - - void show_error( const char * const msg, const int errcode, const bool help ) { if( verbosity >= 0 ) @@ -463,8 +446,8 @@ void show_error( const char * const msg, const int errcode, const bool help ) { std::fprintf( stderr, "%s: %s", program_name, msg ); if( errcode > 0 ) - std::fprintf( stderr, ": %s.", std::strerror( errcode ) ); - std::fprintf( stderr, "\n" ); + std::fprintf( stderr, ": %s", std::strerror( errcode ) ); + std::fputc( '\n', stderr ); } if( help ) std::fprintf( stderr, "Try '%s --help' for more information.\n", @@ -485,7 +468,7 @@ void show_progress( const int packet_size, const Pretty_print * const p, const unsigned long long cfile_size ) { - static unsigned long long csize = 0; /* file_size / 100 */ + static unsigned long long csize = 0; // file_size / 100 static unsigned long long pos = 0; static const Pretty_print * pp = 0; static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; @@ -514,16 +497,16 @@ int main( const int argc, const char * const argv[] ) to the corresponding LZMA compression modes. */ const Lzma_options option_mapping[] = { - { 65535, 16 }, /* -0 */ - { 1 << 20, 5 }, /* -1 */ - { 3 << 19, 6 }, /* -2 */ - { 1 << 21, 8 }, /* -3 */ - { 3 << 20, 12 }, /* -4 */ - { 1 << 22, 20 }, /* -5 */ - { 1 << 23, 36 }, /* -6 */ - { 1 << 24, 68 }, /* -7 */ - { 3 << 23, 132 }, /* -8 */ - { 1 << 25, 273 } }; /* -9 */ + { 65535, 16 }, // -0 + { 1 << 20, 5 }, // -1 + { 3 << 19, 6 }, // -2 + { 1 << 21, 8 }, // -3 + { 3 << 20, 12 }, // -4 + { 1 << 22, 20 }, // -5 + { 1 << 23, 36 }, // -6 + { 1 << 24, 68 }, // -7 + { 3 << 23, 132 }, // -8 + { 1 << 25, 273 } }; // -9 Lzma_options encoder_options = option_mapping[6]; // default = "-6" std::string input_filename; std::string default_output_filename; @@ -587,7 +570,7 @@ int main( const int argc, const char * const argv[] ) for( ; argind < parser.arguments(); ++argind ) { const int code = parser.code( argind ); - if( !code ) break; /* no more options */ + if( !code ) break; // no more options const std::string & arg = parser.argument( argind ); switch( code ) { @@ -618,7 +601,7 @@ int main( const int argc, const char * const argv[] ) case 'V': show_version(); return 0; default : internal_error( "uncaught option." ); } - } /* end process options */ + } // end process options #if defined(__MSVCRT__) || defined(__OS2__) setmode( STDIN_FILENO, O_BINARY ); @@ -628,13 +611,14 @@ int main( const int argc, const char * const argv[] ) if( program_mode == m_test ) outfd = -1; + const bool fast = encoder_options.dictionary_size == 65535 && + encoder_options.match_len_limit == 16; if( data_size <= 0 ) { - if( encoder_options.dictionary_size == 65535 && - encoder_options.match_len_limit == 16 ) data_size = 1 << 20; + if( fast ) data_size = 1 << 20; else data_size = 2 * std::max( 65536, encoder_options.dictionary_size ); } - else if( data_size < encoder_options.dictionary_size ) + else if( !fast && data_size < encoder_options.dictionary_size ) encoder_options.dictionary_size = std::max( data_size, LZ_min_dictionary_size() ); |