symbian-qemu-0.9.1-12/zlib-1.2.3/contrib/iostream2/zstream.h
author martin.trojer@nokia.com
Fri, 31 Jul 2009 15:01:17 +0100
changeset 1 2fb8b9db1c86
permissions -rw-r--r--
Initial QEMU (symbian-qemu-0.9.1-12) import
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/*
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 *
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 * Copyright (c) 1997
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 * Christian Michelsen Research AS
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 * Advanced Computing
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 * Fantoftvegen 38, 5036 BERGEN, Norway
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 * http://www.cmr.no
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 *
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 * Permission to use, copy, modify, distribute and sell this software
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 * and its documentation for any purpose is hereby granted without fee,
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 * provided that the above copyright notice appear in all copies and
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 * that both that copyright notice and this permission notice appear
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 * in supporting documentation.  Christian Michelsen Research AS makes no
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 * representations about the suitability of this software for any
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 * purpose.  It is provided "as is" without express or implied warranty.
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 *
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 */
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#ifndef ZSTREAM__H
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#define ZSTREAM__H
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/*
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 * zstream.h - C++ interface to the 'zlib' general purpose compression library
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 * $Id: zstream.h 1.1 1997-06-25 12:00:56+02 tyge Exp tyge $
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 */
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#include <strstream.h>
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#include <string.h>
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#include <stdio.h>
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#include "zlib.h"
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#if defined(_WIN32)
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#   include <fcntl.h>
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#   include <io.h>
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#   define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
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#else
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#   define SET_BINARY_MODE(file)
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#endif
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class zstringlen {
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public:
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    zstringlen(class izstream&);
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    zstringlen(class ozstream&, const char*);
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    size_t value() const { return val.word; }
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private:
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    struct Val { unsigned char byte; size_t word; } val;
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};
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//  ----------------------------- izstream -----------------------------
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class izstream
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{
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    public:
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        izstream() : m_fp(0) {}
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        izstream(FILE* fp) : m_fp(0) { open(fp); }
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        izstream(const char* name) : m_fp(0) { open(name); }
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        ~izstream() { close(); }
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        /* Opens a gzip (.gz) file for reading.
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         * open() can be used to read a file which is not in gzip format;
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         * in this case read() will directly read from the file without
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         * decompression. errno can be checked to distinguish two error
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         * cases (if errno is zero, the zlib error is Z_MEM_ERROR).
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         */
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        void open(const char* name) {
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            if (m_fp) close();
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            m_fp = ::gzopen(name, "rb");
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        }
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        void open(FILE* fp) {
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            SET_BINARY_MODE(fp);
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            if (m_fp) close();
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            m_fp = ::gzdopen(fileno(fp), "rb");
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        }
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        /* Flushes all pending input if necessary, closes the compressed file
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         * and deallocates all the (de)compression state. The return value is
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         * the zlib error number (see function error() below).
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         */
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        int close() {
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            int r = ::gzclose(m_fp);
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            m_fp = 0; return r;
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        }
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        /* Binary read the given number of bytes from the compressed file.
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         */
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        int read(void* buf, size_t len) {
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            return ::gzread(m_fp, buf, len);
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        }
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        /* Returns the error message for the last error which occurred on the
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         * given compressed file. errnum is set to zlib error number. If an
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         * error occurred in the file system and not in the compression library,
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         * errnum is set to Z_ERRNO and the application may consult errno
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         * to get the exact error code.
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         */
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        const char* error(int* errnum) {
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            return ::gzerror(m_fp, errnum);
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        }
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        gzFile fp() { return m_fp; }
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    private:
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        gzFile m_fp;
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};
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/*
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 * Binary read the given (array of) object(s) from the compressed file.
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 * If the input file was not in gzip format, read() copies the objects number
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 * of bytes into the buffer.
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 * returns the number of uncompressed bytes actually read
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 * (0 for end of file, -1 for error).
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 */
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template <class T, class Items>
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inline int read(izstream& zs, T* x, Items items) {
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    return ::gzread(zs.fp(), x, items*sizeof(T));
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}
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/*
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 * Binary input with the '>' operator.
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martin.trojer@nokia.com
parents:
diff changeset
   121
 */
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   122
template <class T>
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   123
inline izstream& operator>(izstream& zs, T& x) {
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   124
    ::gzread(zs.fp(), &x, sizeof(T));
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   125
    return zs;
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   126
}
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   127
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   128
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   129
inline zstringlen::zstringlen(izstream& zs) {
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   130
    zs > val.byte;
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   131
    if (val.byte == 255) zs > val.word;
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   132
    else val.word = val.byte;
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   133
}
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   134
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   135
/*
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   136
 * Read length of string + the string with the '>' operator.
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   137
 */
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   138
inline izstream& operator>(izstream& zs, char* x) {
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   139
    zstringlen len(zs);
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   140
    ::gzread(zs.fp(), x, len.value());
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   141
    x[len.value()] = '\0';
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   142
    return zs;
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   143
}
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   144
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   145
inline char* read_string(izstream& zs) {
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   146
    zstringlen len(zs);
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   147
    char* x = new char[len.value()+1];
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   148
    ::gzread(zs.fp(), x, len.value());
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   149
    x[len.value()] = '\0';
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   150
    return x;
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   151
}
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   152
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   153
// ----------------------------- ozstream -----------------------------
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   154
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   155
class ozstream
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   156
{
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   157
    public:
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   158
        ozstream() : m_fp(0), m_os(0) {
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   159
        }
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   160
        ozstream(FILE* fp, int level = Z_DEFAULT_COMPRESSION)
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   161
            : m_fp(0), m_os(0) {
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   162
            open(fp, level);
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   163
        }
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   164
        ozstream(const char* name, int level = Z_DEFAULT_COMPRESSION)
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   165
            : m_fp(0), m_os(0) {
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   166
            open(name, level);
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   167
        }
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   168
        ~ozstream() {
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   169
            close();
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   170
        }
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   171
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   172
        /* Opens a gzip (.gz) file for writing.
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   173
         * The compression level parameter should be in 0..9
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   174
         * errno can be checked to distinguish two error cases
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   175
         * (if errno is zero, the zlib error is Z_MEM_ERROR).
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   176
         */
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   177
        void open(const char* name, int level = Z_DEFAULT_COMPRESSION) {
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   178
            char mode[4] = "wb\0";
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   179
            if (level != Z_DEFAULT_COMPRESSION) mode[2] = '0'+level;
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   180
            if (m_fp) close();
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   181
            m_fp = ::gzopen(name, mode);
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   182
        }
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   183
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   184
        /* open from a FILE pointer.
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   185
         */
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   186
        void open(FILE* fp, int level = Z_DEFAULT_COMPRESSION) {
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   187
            SET_BINARY_MODE(fp);
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   188
            char mode[4] = "wb\0";
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   189
            if (level != Z_DEFAULT_COMPRESSION) mode[2] = '0'+level;
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   190
            if (m_fp) close();
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   191
            m_fp = ::gzdopen(fileno(fp), mode);
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   192
        }
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   193
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   194
        /* Flushes all pending output if necessary, closes the compressed file
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   195
         * and deallocates all the (de)compression state. The return value is
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   196
         * the zlib error number (see function error() below).
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   197
         */
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   198
        int close() {
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   199
            if (m_os) {
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   200
                ::gzwrite(m_fp, m_os->str(), m_os->pcount());
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   201
                delete[] m_os->str(); delete m_os; m_os = 0;
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   202
            }
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   203
            int r = ::gzclose(m_fp); m_fp = 0; return r;
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   204
        }
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   205
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   206
        /* Binary write the given number of bytes into the compressed file.
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   207
         */
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   208
        int write(const void* buf, size_t len) {
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   209
            return ::gzwrite(m_fp, (voidp) buf, len);
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   210
        }
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   211
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   212
        /* Flushes all pending output into the compressed file. The parameter
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   213
         * _flush is as in the deflate() function. The return value is the zlib
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   214
         * error number (see function gzerror below). flush() returns Z_OK if
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   215
         * the flush_ parameter is Z_FINISH and all output could be flushed.
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   216
         * flush() should be called only when strictly necessary because it can
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   217
         * degrade compression.
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   218
         */
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   219
        int flush(int _flush) {
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   220
            os_flush();
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   221
            return ::gzflush(m_fp, _flush);
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   222
        }
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   223
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   224
        /* Returns the error message for the last error which occurred on the
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   225
         * given compressed file. errnum is set to zlib error number. If an
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   226
         * error occurred in the file system and not in the compression library,
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   227
         * errnum is set to Z_ERRNO and the application may consult errno
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   228
         * to get the exact error code.
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   229
         */
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   230
        const char* error(int* errnum) {
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   231
            return ::gzerror(m_fp, errnum);
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   232
        }
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   233
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   234
        gzFile fp() { return m_fp; }
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   235
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   236
        ostream& os() {
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   237
            if (m_os == 0) m_os = new ostrstream;
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   238
            return *m_os;
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   239
        }
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   240
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   241
        void os_flush() {
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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            if (m_os && m_os->pcount()>0) {
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   243
                ostrstream* oss = new ostrstream;
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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                oss->fill(m_os->fill());
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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                oss->flags(m_os->flags());
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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                oss->precision(m_os->precision());
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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                oss->width(m_os->width());
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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                ::gzwrite(m_fp, m_os->str(), m_os->pcount());
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   249
                delete[] m_os->str(); delete m_os; m_os = oss;
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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            }
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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        }
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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    private:
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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        gzFile m_fp;
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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        ostrstream* m_os;
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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};
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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/*
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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 * Binary write the given (array of) object(s) into the compressed file.
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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 * returns the number of uncompressed bytes actually written
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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 * (0 in case of error).
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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 */
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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template <class T, class Items>
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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inline int write(ozstream& zs, const T* x, Items items) {
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   265
    return ::gzwrite(zs.fp(), (voidp) x, items*sizeof(T));
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   266
}
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   267
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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/*
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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 * Binary output with the '<' operator.
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset
   270
 */
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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template <class T>
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   272
inline ozstream& operator<(ozstream& zs, const T& x) {
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   273
    ::gzwrite(zs.fp(), (voidp) &x, sizeof(T));
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   274
    return zs;
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   275
}
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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inline zstringlen::zstringlen(ozstream& zs, const char* x) {
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   278
    val.byte = 255;  val.word = ::strlen(x);
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   279
    if (val.word < 255) zs < (val.byte = val.word);
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   280
    else zs < val;
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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diff changeset
   281
}
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   282
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   283
/*
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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   284
 * Write length of string + the string with the '<' operator.
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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diff changeset
   285
 */
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset
   286
inline ozstream& operator<(ozstream& zs, const char* x) {
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
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   287
    zstringlen len(zs, x);
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset
   288
    ::gzwrite(zs.fp(), (voidp) x, len.value());
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset
   289
    return zs;
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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diff changeset
   290
}
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset
   291
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   292
#ifdef _MSC_VER
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   293
inline ozstream& operator<(ozstream& zs, char* const& x) {
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   294
    return zs < (const char*) x;
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset
   295
}
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   296
#endif
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset
   297
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset
   298
/*
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   299
 * Ascii write with the << operator;
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   300
 */
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   301
template <class T>
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset
   302
inline ostream& operator<<(ozstream& zs, const T& x) {
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   303
    zs.os_flush();
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   304
    return zs.os() << x;
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   305
}
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   306
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset
   307
#endif