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2ba5f77454
* All files: Updated copyright information. * COPYING: New file. * COPYING.LIB: Removed. * LIBGCJ_LICENSE: We now use GPL + special exception. From-SVN: r32387
149 lines
3.3 KiB
C++
149 lines
3.3 KiB
C++
// Input_iconv.java -- Java side of iconv() reader.
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/* Copyright (C) 2000 Free Software Foundation
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This file is part of libgcj.
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This software is copyrighted work licensed under the terms of the
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Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
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details. */
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/* Author: Tom Tromey <tromey@redhat.com>. */
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#include <config.h>
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#include <gcj/cni.h>
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#include <jvm.h>
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#include <gnu/gcj/convert/Input_iconv.h>
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#include <gnu/gcj/convert/Output_iconv.h>
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#include <java/io/UnsupportedEncodingException.h>
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#ifdef HAVE_ICONV
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#include <iconv.h>
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#endif
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void
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gnu::gcj::convert::Input_iconv::init (jstring encoding)
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{
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#ifdef HAVE_ICONV
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jsize len = _Jv_GetStringUTFLength (encoding);
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char buffer[len];
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_Jv_GetStringUTFRegion (encoding, 0, len, buffer);
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iconv_t h = iconv_open ("UCS-2", buffer);
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if (h == (iconv_t) -1)
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JvThrow (new java::io::UnsupportedEncodingException);
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JvAssert (h != NULL);
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handle = reinterpret_cast<gnu::gcj::RawData *> (h);
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#else /* HAVE_ICONV */
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// If no iconv, just throw an exception.
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JvThrow (new java::io::UnsupportedEncodingException);
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#endif /* HAVE_ICONV */
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}
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void
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gnu::gcj::convert::Input_iconv::finalize (void)
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{
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#ifdef HAVE_ICONV
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if (handle != NULL)
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{
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iconv_close ((iconv_t) handle);
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handle = NULL;
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}
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#endif /* HAVE_ICONV */
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}
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jint
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gnu::gcj::convert::Input_iconv::read (jcharArray outbuffer,
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jint outpos, jint count)
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{
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#ifdef HAVE_ICONV
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jint origpos = outpos;
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jbyte *bytes = elements (inbuffer);
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jchar *out = elements (outbuffer);
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size_t inavail = inlength - inpos;
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size_t old_in = inavail;
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size_t outavail = count;
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size_t old_out = outavail;
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const char *inbuf = (const char *) &bytes[inpos];
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char *outbuf = (char *) &out[outpos];
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size_t r = iconv ((iconv_t) handle,
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&inbuf, &inavail,
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&outbuf, &outavail);
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// FIXME: what if R==-1?
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inpos += old_in - inavail;
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return old_out - outavail;
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#else /* HAVE_ICONV */
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return -1;
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#endif /* HAVE_ICONV */
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}
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void
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gnu::gcj::convert::Output_iconv::init (jstring encoding)
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{
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#ifdef HAVE_ICONV
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jsize len = _Jv_GetStringUTFLength (encoding);
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char buffer[len];
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_Jv_GetStringUTFRegion (encoding, 0, len, buffer);
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iconv_t h = iconv_open (buffer, "UCS-2");
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if (h == (iconv_t) -1)
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JvThrow (new java::io::UnsupportedEncodingException);
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JvAssert (h != NULL);
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handle = reinterpret_cast<gnu::gcj::RawData *> (h);
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#else /* HAVE_ICONV */
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// If no iconv, just throw an exception.
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JvThrow (new java::io::UnsupportedEncodingException);
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#endif /* HAVE_ICONV */
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}
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void
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gnu::gcj::convert::Output_iconv::finalize (void)
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{
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#ifdef HAVE_ICONV
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if (handle != NULL)
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{
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iconv_close ((iconv_t) handle);
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handle = NULL;
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}
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#endif /* HAVE_ICONV */
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}
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jint
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gnu::gcj::convert::Output_iconv::write (jcharArray inbuffer,
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jint inpos, jint count)
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{
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#ifdef HAVE_ICONV
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jint origpos = inpos;
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jchar *chars = elements (inbuffer);
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jbyte *out = elements (buf);
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size_t inavail = count;
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size_t old_in = count;
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size_t outavail = buf->length - count;
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size_t old_out = outavail;
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const char *inbuf = (const char *) &chars[inpos];
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char *outbuf = (char *) &out[count];
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size_t r = iconv ((iconv_t) handle,
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&inbuf, &inavail,
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&outbuf, &outavail);
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// FIXME: what if R==-1?
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count += old_out - outavail;
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return old_in - inavail;
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#else /* HAVE_ICONV */
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return -1;
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#endif /* HAVE_ICONV */
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}
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