source: trunk/src/corelib/codecs/qiconvcodec.cpp@ 345

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#include "qiconvcodec_p.h"
#include "qtextcodec_p.h"
#include <qlibrary.h>
#include <qdebug.h>
#include <qthreadstorage.h>

#include <errno.h>
#include <locale.h>
#include <stdio.h>
#include <dlfcn.h>

// unistd.h is needed for the _XOPEN_UNIX macro
#include <unistd.h>
#if defined(_XOPEN_UNIX) && !defined(Q_OS_QNX6) && !defined(Q_OS_OSF)
#  include <langinfo.h>
#endif

#if defined(Q_OS_HPUX)
#  define NO_BOM
#  define UTF16 "ucs2"
#elif defined(Q_OS_AIX)
#  define NO_BOM
#  define UTF16 "UCS-2"
#elif defined(Q_OS_MAC)
#  define NO_BOM
#  if Q_BYTE_ORDER == Q_BIG_ENDIAN
#    define UTF16 "UTF-16BE"
#  else
#    define UTF16 "UTF-16LE"
#  endif
#else
#  define UTF16 "UTF-16"
#endif

#if defined(Q_OS_MAC)
#ifndef GNU_LIBICONV
#define GNU_LIBICONV
#endif
typedef iconv_t (*Ptr_iconv_open) (const char*, const char*);
typedef size_t (*Ptr_iconv) (iconv_t, const char **, size_t *, char **, size_t *);
typedef int (*Ptr_iconv_close) (iconv_t);

static Ptr_iconv_open ptr_iconv_open = 0;
static Ptr_iconv ptr_iconv = 0;
static Ptr_iconv_close ptr_iconv_close = 0;
#endif

QT_BEGIN_NAMESPACE

extern bool qt_locale_initialized;

QIconvCodec::QIconvCodec()
    : utf16Codec(0)
{
    utf16Codec = QTextCodec::codecForMib(1015);
    Q_ASSERT_X(utf16Codec != 0,
               "QIconvCodec::convertToUnicode",
               "internal error, UTF-16 codec not found");
    if (!utf16Codec) {
        fprintf(stderr, "QIconvCodec::convertToUnicode: internal error, UTF-16 codec not found\n");
        utf16Codec = reinterpret_cast<QTextCodec *>(~0);
    }
#if defined(Q_OS_MAC)
    if (ptr_iconv_open == 0) {
        QLibrary libiconv(QLatin1String("/usr/lib/libiconv"));
        libiconv.setLoadHints(QLibrary::ExportExternalSymbolsHint);

        ptr_iconv_open = reinterpret_cast<Ptr_iconv_open>(libiconv.resolve("libiconv_open"));
        if (!ptr_iconv_open)
            ptr_iconv_open = reinterpret_cast<Ptr_iconv_open>(libiconv.resolve("iconv_open"));
        ptr_iconv = reinterpret_cast<Ptr_iconv>(libiconv.resolve("libiconv"));
        if (!ptr_iconv)
            ptr_iconv = reinterpret_cast<Ptr_iconv>(libiconv.resolve("iconv"));
        ptr_iconv_close = reinterpret_cast<Ptr_iconv_close>(libiconv.resolve("libiconv_close"));
        if (!ptr_iconv_close)
            ptr_iconv_close = reinterpret_cast<Ptr_iconv_close>(libiconv.resolve("iconv_close"));

        Q_ASSERT_X(ptr_iconv_open && ptr_iconv && ptr_iconv_close,
        "QIconvCodec::QIconvCodec()",
        "internal error, could not resolve the iconv functions");

#       undef iconv_open
#       define iconv_open ptr_iconv_open
#       undef iconv
#       define iconv ptr_iconv
#       undef iconv_close
#       define iconv_close ptr_iconv_close
    }
#endif
}

QIconvCodec::~QIconvCodec()
{
}

QIconvCodec::IconvState::IconvState(iconv_t x)
    : buffer(array), bufferLen(sizeof array), cd(x)
{
}

QIconvCodec::IconvState::~IconvState()
{
    if (cd != reinterpret_cast<iconv_t>(-1))