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-rw-r--r--main.cc76
1 files changed, 30 insertions, 46 deletions
diff --git a/main.cc b/main.cc
index 94baeaa..a2c1287 100644
--- a/main.cc
+++ b/main.cc
@@ -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() );