kc3-lang/zlib/contrib/ada/zlib-thin.ads
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contrib/ada/zlib-thin.ads
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---------------------------------------------------------------- -- ZLib for Ada thick binding. -- -- -- -- Copyright (C) 2002-2003 Dmitriy Anisimkov -- -- -- -- Open source license information is in the zlib.ads file. -- ---------------------------------------------------------------- -- $Id: zlib-thin.ads,v 1.11 2004/07/23 06:33:11 vagul Exp $ with Interfaces.C.Strings; with System; private package ZLib.Thin is -- From zconf.h MAX_MEM_LEVEL : constant := 9; -- zconf.h:105 -- zconf.h:105 MAX_WBITS : constant := 15; -- zconf.h:115 -- 32K LZ77 window -- zconf.h:115 SEEK_SET : constant := 8#0000#; -- zconf.h:244 -- Seek from beginning of file. -- zconf.h:244 SEEK_CUR : constant := 1; -- zconf.h:245 -- Seek from current position. -- zconf.h:245 SEEK_END : constant := 2; -- zconf.h:246 -- Set file pointer to EOF plus "offset" -- zconf.h:246 type Byte is new Interfaces.C.unsigned_char; -- 8 bits -- zconf.h:214 type UInt is new Interfaces.C.unsigned; -- 16 bits or more -- zconf.h:216 type Int is new Interfaces.C.int; type ULong is new Interfaces.C.unsigned_long; -- 32 bits or more -- zconf.h:217 subtype Chars_Ptr is Interfaces.C.Strings.chars_ptr; type ULong_Access is access ULong; type Int_Access is access Int; subtype Voidp is System.Address; -- zconf.h:232 subtype Byte_Access is Voidp; Nul : constant Voidp := System.Null_Address; -- end from zconf Z_NO_FLUSH : constant := 8#0000#; -- zlib.h:125 -- zlib.h:125 Z_PARTIAL_FLUSH : constant := 1; -- zlib.h:126 -- will be removed, use -- Z_SYNC_FLUSH instead -- zlib.h:126 Z_SYNC_FLUSH : constant := 2; -- zlib.h:127 -- zlib.h:127 Z_FULL_FLUSH : constant := 3; -- zlib.h:128 -- zlib.h:128 Z_FINISH : constant := 4; -- zlib.h:129 -- zlib.h:129 Z_OK : constant := 8#0000#; -- zlib.h:132 -- zlib.h:132 Z_STREAM_END : constant := 1; -- zlib.h:133 -- zlib.h:133 Z_NEED_DICT : constant := 2; -- zlib.h:134 -- zlib.h:134 Z_ERRNO : constant := -1; -- zlib.h:135 -- zlib.h:135 Z_STREAM_ERROR : constant := -2; -- zlib.h:136 -- zlib.h:136 Z_DATA_ERROR : constant := -3; -- zlib.h:137 -- zlib.h:137 Z_MEM_ERROR : constant := -4; -- zlib.h:138 -- zlib.h:138 Z_BUF_ERROR : constant := -5; -- zlib.h:139 -- zlib.h:139 Z_VERSION_ERROR : constant := -6; -- zlib.h:140 -- zlib.h:140 Z_NO_COMPRESSION : constant := 8#0000#; -- zlib.h:145 -- zlib.h:145 Z_BEST_SPEED : constant := 1; -- zlib.h:146 -- zlib.h:146 Z_BEST_COMPRESSION : constant := 9; -- zlib.h:147 -- zlib.h:147 Z_DEFAULT_COMPRESSION : constant := -1; -- zlib.h:148 -- zlib.h:148 Z_FILTERED : constant := 1; -- zlib.h:151 -- zlib.h:151 Z_HUFFMAN_ONLY : constant := 2; -- zlib.h:152 -- zlib.h:152 Z_DEFAULT_STRATEGY : constant := 8#0000#; -- zlib.h:153 -- zlib.h:153 Z_BINARY : constant := 8#0000#; -- zlib.h:156 -- zlib.h:156 Z_ASCII : constant := 1; -- zlib.h:157 -- zlib.h:157 Z_UNKNOWN : constant := 2; -- zlib.h:158 -- zlib.h:158 Z_DEFLATED : constant := 8; -- zlib.h:161 -- zlib.h:161 Z_NULL : constant := 8#0000#; -- zlib.h:164 -- for initializing zalloc, zfree, opaque -- zlib.h:164 type gzFile is new Voidp; -- zlib.h:646 type Z_Stream is private; type Z_Streamp is access all Z_Stream; -- zlib.h:89 type alloc_func is access function (Opaque : Voidp; Items : UInt; Size : UInt) return Voidp; -- zlib.h:63 type free_func is access procedure (opaque : Voidp; address : Voidp); function zlibVersion return Chars_Ptr; function Deflate (strm : Z_Streamp; flush : Int) return Int; function DeflateEnd (strm : Z_Streamp) return Int; function Inflate (strm : Z_Streamp; flush : Int) return Int; function InflateEnd (strm : Z_Streamp) return Int; function deflateSetDictionary (strm : Z_Streamp; dictionary : Byte_Access; dictLength : UInt) return Int; function deflateCopy (dest : Z_Streamp; source : Z_Streamp) return Int; -- zlib.h:478 function deflateReset (strm : Z_Streamp) return Int; -- zlib.h:495 function deflateParams (strm : Z_Streamp; level : Int; strategy : Int) return Int; -- zlib.h:506 function inflateSetDictionary (strm : Z_Streamp; dictionary : Byte_Access; dictLength : UInt) return Int; -- zlib.h:548 function inflateSync (strm : Z_Streamp) return Int; -- zlib.h:565 function inflateReset (strm : Z_Streamp) return Int; -- zlib.h:580 function compress (dest : Byte_Access; destLen : ULong_Access; source : Byte_Access; sourceLen : ULong) return Int; -- zlib.h:601 function compress2 (dest : Byte_Access; destLen : ULong_Access; source : Byte_Access; sourceLen : ULong; level : Int) return Int; -- zlib.h:615 function uncompress (dest : Byte_Access; destLen : ULong_Access; source : Byte_Access; sourceLen : ULong) return Int; function gzopen (path : Chars_Ptr; mode : Chars_Ptr) return gzFile; function gzdopen (fd : Int; mode : Chars_Ptr) return gzFile; function gzsetparams (file : gzFile; level : Int; strategy : Int) return Int; function gzread (file : gzFile; buf : Voidp; len : UInt) return Int; function gzwrite (file : in gzFile; buf : in Voidp; len : in UInt) return Int; function gzprintf (file : in gzFile; format : in Chars_Ptr) return Int; function gzputs (file : in gzFile; s : in Chars_Ptr) return Int; function gzgets (file : gzFile; buf : Chars_Ptr; len : Int) return Chars_Ptr; function gzputc (file : gzFile; char : Int) return Int; function gzgetc (file : gzFile) return Int; function gzflush (file : gzFile; flush : Int) return Int; function gzseek (file : gzFile; offset : Int; whence : Int) return Int; function gzrewind (file : gzFile) return Int; function gztell (file : gzFile) return Int; function gzeof (file : gzFile) return Int; function gzclose (file : gzFile) return Int; function gzerror (file : gzFile; errnum : Int_Access) return Chars_Ptr; function adler32 (adler : ULong; buf : Byte_Access; len : UInt) return ULong; function crc32 (crc : ULong; buf : Byte_Access; len : UInt) return ULong; function deflateInit (strm : Z_Streamp; level : Int; version : Chars_Ptr; stream_size : Int) return Int; function deflateInit2 (strm : Z_Streamp; level : Int; method : Int; windowBits : Int; memLevel : Int; strategy : Int; version : Chars_Ptr; stream_size : Int) return Int; function Deflate_Init (strm : Z_Streamp; level : Int; method : Int; windowBits : Int; memLevel : Int; strategy : Int) return Int; pragma Inline (Deflate_Init); function inflateInit (strm : Z_Streamp; version : Chars_Ptr; stream_size : Int) return Int; function inflateInit2 (strm : in Z_Streamp; windowBits : in Int; version : in Chars_Ptr; stream_size : in Int) return Int; function inflateBackInit (strm : in Z_Streamp; windowBits : in Int; window : in Byte_Access; version : in Chars_Ptr; stream_size : in Int) return Int; -- Size of window have to be 2**windowBits. function Inflate_Init (strm : Z_Streamp; windowBits : Int) return Int; pragma Inline (Inflate_Init); function zError (err : Int) return Chars_Ptr; function inflateSyncPoint (z : Z_Streamp) return Int; function get_crc_table return ULong_Access; -- Interface to the available fields of the z_stream structure. -- The application must update next_in and avail_in when avail_in has -- dropped to zero. It must update next_out and avail_out when avail_out -- has dropped to zero. The application must initialize zalloc, zfree and -- opaque before calling the init function. procedure Set_In (Strm : in out Z_Stream; Buffer : in Voidp; Size : in UInt); pragma Inline (Set_In); procedure Set_Out (Strm : in out Z_Stream; Buffer : in Voidp; Size : in UInt); pragma Inline (Set_Out); procedure Set_Mem_Func (Strm : in out Z_Stream; Opaque : in Voidp; Alloc : in alloc_func; Free : in free_func); pragma Inline (Set_Mem_Func); function Last_Error_Message (Strm : in Z_Stream) return String; pragma Inline (Last_Error_Message); function Avail_Out (Strm : in Z_Stream) return UInt; pragma Inline (Avail_Out); function Avail_In (Strm : in Z_Stream) return UInt; pragma Inline (Avail_In); function Total_In (Strm : in Z_Stream) return ULong; pragma Inline (Total_In); function Total_Out (Strm : in Z_Stream) return ULong; pragma Inline (Total_Out); function inflateCopy (dest : in Z_Streamp; Source : in Z_Streamp) return Int; function compressBound (Source_Len : in ULong) return ULong; function deflateBound (Strm : in Z_Streamp; Source_Len : in ULong) return ULong; function gzungetc (C : in Int; File : in gzFile) return Int; function zlibCompileFlags return ULong; private type Z_Stream is record -- zlib.h:68 Next_In : Voidp := Nul; -- next input byte Avail_In : UInt := 0; -- number of bytes available at next_in Total_In : ULong := 0; -- total nb of input bytes read so far Next_Out : Voidp := Nul; -- next output byte should be put there Avail_Out : UInt := 0; -- remaining free space at next_out Total_Out : ULong := 0; -- total nb of bytes output so far msg : Chars_Ptr; -- last error message, NULL if no error state : Voidp; -- not visible by applications zalloc : alloc_func := null; -- used to allocate the internal state zfree : free_func := null; -- used to free the internal state opaque : Voidp; -- private data object passed to -- zalloc and zfree data_type : Int; -- best guess about the data type: -- ascii or binary adler : ULong; -- adler32 value of the uncompressed -- data reserved : ULong; -- reserved for future use end record; pragma Convention (C, Z_Stream); pragma Import (C, zlibVersion, "zlibVersion"); pragma Import (C, Deflate, "deflate"); pragma Import (C, DeflateEnd, "deflateEnd"); pragma Import (C, Inflate, "inflate"); pragma Import (C, InflateEnd, "inflateEnd"); pragma Import (C, deflateSetDictionary, "deflateSetDictionary"); pragma Import (C, deflateCopy, "deflateCopy"); pragma Import (C, deflateReset, "deflateReset"); pragma Import (C, deflateParams, "deflateParams"); pragma Import (C, inflateSetDictionary, "inflateSetDictionary"); pragma Import (C, inflateSync, "inflateSync"); pragma Import (C, inflateReset, "inflateReset"); pragma Import (C, compress, "compress"); pragma Import (C, compress2, "compress2"); pragma Import (C, uncompress, "uncompress"); pragma Import (C, gzopen, "gzopen"); pragma Import (C, gzdopen, "gzdopen"); pragma Import (C, gzsetparams, "gzsetparams"); pragma Import (C, gzread, "gzread"); pragma Import (C, gzwrite, "gzwrite"); pragma Import (C, gzprintf, "gzprintf"); pragma Import (C, gzputs, "gzputs"); pragma Import (C, gzgets, "gzgets"); pragma Import (C, gzputc, "gzputc"); pragma Import (C, gzgetc, "gzgetc"); pragma Import (C, gzflush, "gzflush"); pragma Import (C, gzseek, "gzseek"); pragma Import (C, gzrewind, "gzrewind"); pragma Import (C, gztell, "gztell"); pragma Import (C, gzeof, "gzeof"); pragma Import (C, gzclose, "gzclose"); pragma Import (C, gzerror, "gzerror"); pragma Import (C, adler32, "adler32"); pragma Import (C, crc32, "crc32"); pragma Import (C, deflateInit, "deflateInit_"); pragma Import (C, inflateInit, "inflateInit_"); pragma Import (C, deflateInit2, "deflateInit2_"); pragma Import (C, inflateInit2, "inflateInit2_"); pragma Import (C, zError, "zError"); pragma Import (C, inflateSyncPoint, "inflateSyncPoint"); pragma Import (C, get_crc_table, "get_crc_table"); -- since zlib 1.2.0: pragma Import (C, inflateCopy, "inflateCopy"); pragma Import (C, compressBound, "compressBound"); pragma Import (C, deflateBound, "deflateBound"); pragma Import (C, gzungetc, "gzungetc"); pragma Import (C, zlibCompileFlags, "zlibCompileFlags"); pragma Import (C, inflateBackInit, "inflateBackInit_"); -- I stopped binding the inflateBack routines, because realize that -- it does not support zlib and gzip headers for now, and have no -- symmetric deflateBack routines. -- ZLib-Ada is symmetric regarding deflate/inflate data transformation -- and has a similar generic callback interface for the -- deflate/inflate transformation based on the regular Deflate/Inflate -- routines. -- pragma Import (C, inflateBack, "inflateBack"); -- pragma Import (C, inflateBackEnd, "inflateBackEnd"); end ZLib.Thin;