1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
// Input_iconv.java -- Java side of iconv() reader.
/* Copyright (C) 2000 Free Software Foundation
This file is part of libgcj.
This software is copyrighted work licensed under the terms of the
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
details. */
/* Author: Tom Tromey <tromey@redhat.com>. */
#include <config.h>
#include <gcj/cni.h>
#include <jvm.h>
#include <gnu/gcj/convert/Input_iconv.h>
#include <gnu/gcj/convert/Output_iconv.h>
#include <java/io/UnsupportedEncodingException.h>
#ifdef HAVE_ICONV
#include <iconv.h>
template<typename T>
static inline size_t
iconv_adapter (size_t (*iconv_f) (iconv_t, T, size_t *, char **, size_t *),
iconv_t handle, char **inbuf, size_t *inavail,
char **outbuf, size_t *outavail)
{
return (*iconv_f) (handle, (T) inbuf, inavail, outbuf, outavail);
}
#endif
void
gnu::gcj::convert::Input_iconv::init (jstring encoding)
{
#ifdef HAVE_ICONV
jsize len = _Jv_GetStringUTFLength (encoding);
char buffer[len];
_Jv_GetStringUTFRegion (encoding, 0, len, buffer);
iconv_t h = iconv_open ("UCS-2", buffer);
if (h == (iconv_t) -1)
JvThrow (new java::io::UnsupportedEncodingException);
JvAssert (h != NULL);
handle = reinterpret_cast<gnu::gcj::RawData *> (h);
#else /* HAVE_ICONV */
// If no iconv, just throw an exception.
JvThrow (new java::io::UnsupportedEncodingException);
#endif /* HAVE_ICONV */
}
void
gnu::gcj::convert::Input_iconv::finalize (void)
{
#ifdef HAVE_ICONV
if (handle != NULL)
{
iconv_close ((iconv_t) handle);
handle = NULL;
}
#endif /* HAVE_ICONV */
}
jint
gnu::gcj::convert::Input_iconv::read (jcharArray outbuffer,
jint outpos, jint count)
{
#ifdef HAVE_ICONV
jint origpos = outpos;
jbyte *bytes = elements (inbuffer);
jchar *out = elements (outbuffer);
size_t inavail = inlength - inpos;
size_t old_in = inavail;
size_t outavail = count;
size_t old_out = outavail;
char *inbuf = (char *) &bytes[inpos];
char *outbuf = (char *) &out[outpos];
size_t r = iconv_adapter (iconv, (iconv_t) handle,
&inbuf, &inavail,
&outbuf, &outavail);
// FIXME: what if R==-1?
inpos += old_in - inavail;
return old_out - outavail;
#else /* HAVE_ICONV */
return -1;
#endif /* HAVE_ICONV */
}
void
gnu::gcj::convert::Output_iconv::init (jstring encoding)
{
#ifdef HAVE_ICONV
jsize len = _Jv_GetStringUTFLength (encoding);
char buffer[len];
_Jv_GetStringUTFRegion (encoding, 0, len, buffer);
iconv_t h = iconv_open (buffer, "UCS-2");
if (h == (iconv_t) -1)
JvThrow (new java::io::UnsupportedEncodingException);
JvAssert (h != NULL);
handle = reinterpret_cast<gnu::gcj::RawData *> (h);
#else /* HAVE_ICONV */
// If no iconv, just throw an exception.
JvThrow (new java::io::UnsupportedEncodingException);
#endif /* HAVE_ICONV */
}
void
gnu::gcj::convert::Output_iconv::finalize (void)
{
#ifdef HAVE_ICONV
if (handle != NULL)
{
iconv_close ((iconv_t) handle);
handle = NULL;
}
#endif /* HAVE_ICONV */
}
jint
gnu::gcj::convert::Output_iconv::write (jcharArray inbuffer,
jint inpos, jint count)
{
#ifdef HAVE_ICONV
jint origpos = inpos;
jchar *chars = elements (inbuffer);
jbyte *out = elements (buf);
size_t inavail = count;
size_t old_in = count;
size_t outavail = buf->length - count;
size_t old_out = outavail;
char *inbuf = (char *) &chars[inpos];
char *outbuf = (char *) &out[count];
size_t r = iconv_adapter (iconv, (iconv_t) handle,
&inbuf, &inavail,
&outbuf, &outavail);
// FIXME: what if R==-1?
count += old_out - outavail;
return old_in - inavail;
#else /* HAVE_ICONV */
return -1;
#endif /* HAVE_ICONV */
}
|
