Adding upstream version 1.0~rc1.upstream/1.0_rc1

Signed-off-by: Daniel Baumann <mail@daniel-baumann.ch>

1 files changed, 63 insertions, 46 deletions

diff --git a/doc/plzip.info b/doc/plzip.info
index 94d96af..bf22e32 100644
--- a/doc/plzip.info
+++ b/doc/plzip.info
@@ -12,25 +12,25 @@ File: plzip.info,  Node: Top,  Next: Introduction,  Up: (dir)
 Plzip Manual
 ************
 
-This manual is for Plzip (version 0.9, 1 March 2012).
+This manual is for Plzip (version 1.0-rc1, 8 March 2013).
 
 * Menu:
 
-* Introduction::        Purpose and features of plzip
-* Invoking Plzip::      Command line interface
-* Program Design::      Internal structure of plzip
-* File Format::         Detailed format of the compressed file
-* Problems::            Reporting bugs
-* Concept Index::       Index of concepts
+* Introduction::          Purpose and features of plzip
+* Program Design::        Internal structure of plzip
+* Invoking Plzip::        Command line interface
+* File Format::           Detailed format of the compressed file
+* Problems::              Reporting bugs
+* Concept Index::         Index of concepts
 
 
-   Copyright (C) 2009, 2010, 2011, 2012 Antonio Diaz Diaz.
+   Copyright (C) 2009, 2010, 2011, 2012, 2013 Antonio Diaz Diaz.
 
    This manual is free documentation: you have unlimited permission to
 copy, distribute and modify it.
 
 
-File: plzip.info,  Node: Introduction,  Next: Invoking Plzip,  Prev: Top,  Up: Top
+File: plzip.info,  Node: Introduction,  Next: Program Design,  Prev: Top,  Up: Top
 
 1 Introduction
 **************
@@ -94,9 +94,32 @@ corrupt or invalid input file, 3 for an internal consistency error (eg,
 bug) which caused plzip to panic.
 
 
-File: plzip.info,  Node: Invoking Plzip,  Next: Program Design,  Prev: Introduction,  Up: Top
+File: plzip.info,  Node: Program Design,  Next: Invoking Plzip,  Prev: Introduction,  Up: Top
 
-2 Invoking Plzip
+2 Program Design
+****************
+
+For each input file, a splitter thread and several worker threads are
+created, acting the main thread as muxer (multiplexer) thread. A "packet
+courier" takes care of data transfers among threads and limits the
+maximum number of data blocks (packets) being processed simultaneously.
+
+   The splitter reads data blocks from the input file, and distributes
+them to the workers. The workers (de)compress the blocks received from
+the splitter. The muxer collects processed packets from the workers, and
+writes them to the output file.
+
+   When decompressing from a regular file, the splitter is removed and
+the workers read directly from the input file. If the output file is
+also a regular file, the muxer is also removed, and the workers write
+directly to the output file. With these optimizations, decompression
+speed of large files with many members is only limited by the number of
+processors available and by I/O speed.
+
+
+File: plzip.info,  Node: Invoking Plzip,  Next: File Format,  Prev: Program Design,  Up: Top
+
+3 Invoking Plzip
 ****************
 
 The format for running plzip is:
@@ -156,7 +179,8 @@ The format for running plzip is:
      Set the number of worker threads. Valid values range from 1 to "as
      many as your system can support". If this option is not used,
      plzip tries to detect the number of processors in the system and
-     use it as default value.
+     use it as default value. `plzip --help' shows the system's default
+     value.
 
 `-o FILE'
 `--output=FILE'
@@ -243,28 +267,17 @@ Z        zettabyte (10^21)         |   Zi       zebibyte (2^70)
 Y        yottabyte (10^24)         |   Yi       yobibyte (2^80)
 
 
-File: plzip.info,  Node: Program Design,  Next: File Format,  Prev: Invoking Plzip,  Up: Top
-
-3 Program Design
-****************
-
-For each input file, a splitter thread and several worker threads are
-created, acting the main thread as muxer (multiplexer) thread. A "packet
-courier" takes care of data transfers among threads and limits the
-maximum number of data blocks (packets) being processed simultaneously.
-
-   The splitter reads data blocks from the input file, and distributes
-them to the workers. The workers (de)compress the blocks received from
-the splitter. The muxer collects processed packets from the workers, and
-writes them to the output file.
-
-
-File: plzip.info,  Node: File Format,  Next: Problems,  Prev: Program Design,  Up: Top
+File: plzip.info,  Node: File Format,  Next: Problems,  Prev: Invoking Plzip,  Up: Top
 
 4 File Format
 *************
 
-In the diagram below, a box like this:
+Perfection is reached, not when there is no longer anything to add, but
+when there is no longer anything to take away.
+-- Antoine de Saint-Exupery
+
+
+   In the diagram below, a box like this:
 +---+
 |   | <-- the vertical bars might be missing
 +---+
@@ -293,15 +306,19 @@ additional information before, between, or after them.
      "LZIP".
 
 `VN (version number, 1 byte)'
-     Just in case something needs to be modified in the future. Valid
-     values are 0 and 1. Version 0 files are deprecated. They can
-     contain only one member and lack the `Member size' field.
+     Just in case something needs to be modified in the future. 1 for
+     now.
 
 `DS (coded dictionary size, 1 byte)'
-     Bits 4-0 contain the base 2 logarithm of the base dictionary size.
-     Bits 7-5 contain the number of "wedges" to substract from the base
-     dictionary size to obtain the dictionary size. The size of a wedge
-     is (base dictionary size / 16).
+     Lzip divides the distance between any two powers of 2 into 8
+     equally spaced intervals, named "wedges". The dictionary size is
+     calculated by taking a power of 2 (the base size) and substracting
+     from it a number of wedges between 0 and 7. The size of a wedge is
+     (base_size / 16).
+     Bits 4-0 contain the base 2 logarithm of the base size (12 to 29).
+     Bits 7-5 contain the number of wedges (0 to 7) to substract from
+     the base size to obtain the dictionary size.
+     Example: 0xD3 = (2^19 - 6 * 2^15) = (512KiB - 6 * 32KiB) = 320KiB
      Valid values for dictionary size range from 4KiB to 512MiB.
 
 `Lzma stream'
@@ -315,9 +332,9 @@ additional information before, between, or after them.
      Size of the uncompressed original data.
 
 `Member size (8 bytes)'
-     Total size of the member, including header and trailer. This
-     facilitates safe recovery of undamaged members from multi-member
-     files.
+     Total size of the member, including header and trailer. This field
+     acts as a distributed index, and facilitates safe recovery of
+     undamaged members from multi-member files.
 
 
 
@@ -358,12 +375,12 @@ Concept Index
 
 Tag Table:
 Node: Top223
-Node: Introduction842
-Node: Invoking Plzip4008
-Node: Program Design8964
-Node: File Format9626
-Node: Problems11621
-Node: Concept Index12150
+Node: Introduction864
+Node: Program Design4030
+Node: Invoking Plzip5084
+Node: File Format10093
+Node: Problems12473
+Node: Concept Index13002
 
 End Tag Table