Last change
on this file since 935 was
834,
checked in by garnier, 16 years ago
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import all except CVS
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-
Property svn:executable set to
*
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File size:
1.9 KB
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Rev | Line | |
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[834] | 1 | // Copyright FreeHEP, 2005. |
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| 2 | |
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| 3 | #include "cheprep/GZIPOutputStreamBuffer.h" |
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| 4 | |
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| 5 | /** |
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| 6 | * @author Mark Donszelmann |
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| 7 | * @version $Id: GZIPOutputStreamBuffer.cc,v 1.4 2005/06/02 21:28:45 duns Exp $ |
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| 8 | */ |
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| 9 | namespace cheprep { |
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| 10 | |
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| 11 | using namespace std; |
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| 12 | |
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| 13 | GZIPOutputStreamBuffer::GZIPOutputStreamBuffer( streambuf *buffer) |
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| 14 | : DeflateOutputStreamBuffer(buffer), |
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| 15 | open(false) { |
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| 16 | |
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| 17 | init(true); |
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| 18 | } |
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| 19 | |
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| 20 | void GZIPOutputStreamBuffer::setFilename( const string &name ) { |
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| 21 | filename = name ; |
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| 22 | } |
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| 23 | |
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| 24 | void GZIPOutputStreamBuffer::setComment( const string &c ) { |
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| 25 | comment = c ; |
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| 26 | } |
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| 27 | |
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| 28 | void GZIPOutputStreamBuffer::close() { |
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| 29 | if (!open) return; |
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| 30 | |
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| 31 | finish(); |
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| 32 | writeTrailer(); |
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| 33 | |
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| 34 | open = false ; |
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| 35 | } |
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| 36 | |
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| 37 | GZIPOutputStreamBuffer::~GZIPOutputStreamBuffer() { |
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| 38 | close() ; |
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| 39 | } |
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| 40 | |
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| 41 | int GZIPOutputStreamBuffer::overflow( int c ) { |
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| 42 | if (!open) { |
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| 43 | writeHeader(); |
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| 44 | open = true; |
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| 45 | } |
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| 46 | return DeflateOutputStreamBuffer::overflow( c ) ; |
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| 47 | } |
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| 48 | |
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| 49 | void GZIPOutputStreamBuffer::writeHeader() { |
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| 50 | unsigned char flag = 0x00; |
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| 51 | flag |= (filename == "") ? 0x00 : 0x08; |
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| 52 | flag |= (comment == "") ? 0x00 : 0x10; |
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| 53 | |
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| 54 | putUB(0x1f); // Magic # |
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| 55 | putUB(0x8b); // Magic # |
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| 56 | putUB(0x08); // Deflater.DEFLATED |
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| 57 | putUB(flag); // FLG |
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| 58 | putUI(0x00000000); // MTIME |
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| 59 | putUB(0x00); // XFLG |
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| 60 | putUB(0x00); // OS |
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| 61 | |
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| 62 | if (filename != "") { |
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| 63 | putS(filename); // Filename |
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| 64 | putUB(0x00); |
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| 65 | } |
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| 66 | |
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| 67 | if (comment != "") { |
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| 68 | putS(comment); // Comment |
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| 69 | putUB(0x00); |
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| 70 | } |
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| 71 | } |
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| 72 | |
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| 73 | void GZIPOutputStreamBuffer::writeTrailer() { |
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| 74 | putUI(getCRC()); |
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| 75 | putUI(getSize()); |
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| 76 | } |
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| 77 | |
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| 78 | } // cheprep |
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