diff options
Diffstat (limited to '')
| -rw-r--r-- | src/xz/args.c | 6 | ||||
| -rw-r--r-- | src/xz/coder.c | 8 | ||||
| -rw-r--r-- | src/xz/coder.h | 4 | ||||
| -rw-r--r-- | src/xz/message.c | 6 | ||||
| -rw-r--r-- | src/xz/xz.1 | 13 |
5 files changed, 28 insertions, 9 deletions
diff --git a/src/xz/args.c b/src/xz/args.c index 7b12529c..be26bf3d 100644 --- a/src/xz/args.c +++ b/src/xz/args.c @@ -45,6 +45,7 @@ parse_real(args_info *args, int argc, char **argv) OPT_NO_SPARSE, OPT_FILES, OPT_FILES0, + OPT_NO_ADJUST, OPT_INFO_MEMORY, OPT_ROBOT, }; @@ -74,6 +75,7 @@ parse_real(args_info *args, int argc, char **argv) // Basic compression settings { "format", required_argument, NULL, 'F' }, { "check", required_argument, NULL, 'C' }, + { "no-adjust", no_argument, NULL, OPT_NO_ADJUST }, { "memory", required_argument, NULL, 'M' }, { "threads", required_argument, NULL, 'T' }, @@ -367,6 +369,10 @@ parse_real(args_info *args, int argc, char **argv) break; + case OPT_NO_ADJUST: + opt_auto_adjust = false; + break; + default: message_try_help(); tuklib_exit(E_ERROR, E_ERROR, false); diff --git a/src/xz/coder.c b/src/xz/coder.c index 8d882d26..ff50d63c 100644 --- a/src/xz/coder.c +++ b/src/xz/coder.c @@ -22,8 +22,8 @@ enum coder_init_ret { enum operation_mode opt_mode = MODE_COMPRESS; - enum format_type opt_format = FORMAT_AUTO; +bool opt_auto_adjust = true; /// Stream used to communicate with liblzma @@ -42,10 +42,6 @@ static size_t filters_count = 0; /// Number of the preset (0-9) static size_t preset_number = 6; -/// True if we should auto-adjust the compression settings to use less memory -/// if memory usage limit is too low for the original settings. -static bool auto_adjust = true; - /// Indicate if no preset has been explicitly given. In that case, if we need /// to auto-adjust for lower memory usage, we won't print a warning. static bool preset_default = true; @@ -191,7 +187,7 @@ coder_set_compression_settings(void) // If --no-auto-adjust was used or we didn't find LZMA1 or // LZMA2 as the last filter, give an error immediately. // --format=raw implies --no-auto-adjust. - if (!auto_adjust || opt_format == FORMAT_RAW) + if (!opt_auto_adjust || opt_format == FORMAT_RAW) memlimit_too_small(memory_usage); assert(opt_mode == MODE_COMPRESS); diff --git a/src/xz/coder.h b/src/xz/coder.h index 0d3af6ad..4626466f 100644 --- a/src/xz/coder.h +++ b/src/xz/coder.h @@ -37,6 +37,10 @@ extern enum operation_mode opt_mode; /// This is set in args.c. extern enum format_type opt_format; +/// If true, the compression settings are automatically adjusted down if +/// they exceed the memory usage limit. +extern bool opt_auto_adjust; + /// Set the integrity check type used when compressing extern void coder_set_check(lzma_check check); diff --git a/src/xz/message.c b/src/xz/message.c index 6eed5f7e..5044ea22 100644 --- a/src/xz/message.c +++ b/src/xz/message.c @@ -1137,10 +1137,14 @@ message_help(bool long_help) " -e, --extreme use more CPU time when encoding to increase compression\n" " ratio without increasing memory usage of the decoder")); - if (long_help) + if (long_help) { + puts(_( +" --no-adjust if compression settings exceed the memory usage limit,\n" +" give an error instead of adjusting the settings downwards")); puts(_( // xgettext:no-c-format " -M, --memory=NUM use roughly NUM bytes of memory at maximum; 0 indicates\n" " the default setting, which is 40 % of total RAM")); + } if (long_help) { puts(_( diff --git a/src/xz/xz.1 b/src/xz/xz.1 index 3520d0f9..2c241700 100644 --- a/src/xz/xz.1 +++ b/src/xz/xz.1 @@ -5,7 +5,7 @@ .\" This file has been put into the public domain. .\" You can do whatever you want with this file. .\" -.TH XZ 1 "2010-06-01" "Tukaani" "XZ Utils" +.TH XZ 1 "2010-06-15" "Tukaani" "XZ Utils" .SH NAME xz, unxz, xzcat, lzma, unlzma, lzcat \- Compress or decompress .xz and .lzma files .SH SYNOPSIS @@ -210,7 +210,9 @@ When compressing, if the selected compression settings exceed the memory usage limit, the settings are automatically adjusted downwards and a notice about this is displayed. As an exception, if the memory usage limit is exceeded when compressing with -.BR \-\-format=raw , +.B \-\-format=raw +or +.BR \-\-no\-adjust , an error is displayed and .B xz will exit with exit status @@ -617,6 +619,13 @@ of the compressor or decompressor (exception: compressor memory usage may increase a little with presets \fB\-0\fR ... \fB\-2\fR). The downside is that the compression time will increase dramatically (it can easily double). .TP +.B \-\-no\-adjust +Display an error and exit if the compression settings exceed the +the memory usage limit. The default is to adjust the settings downwards so +that the memory usage limit is not exceeded. Automatic adjusting is +always disabled when creating raw streams +.RB ( \-\-format=raw ). +.TP \fB\-M\fR \fIlimit\fR, \fB\-\-memory=\fIlimit Set the memory usage limit. If this option is specified multiple times, the last one takes effect. The |