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
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
|
/**
* @copyright
* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
* ====================================================================
* @endcopyright
*
* @file org_apache_subversion_javahl_util_TunnelChannel.cpp
* @brief Implementation of the native methods in the Java classes
* TunnelChannel, RequestChannel and ResponseChannel
*/
#include <string>
#include <apr_file_io.h>
#include "../include/org_apache_subversion_javahl_util_TunnelChannel.h"
#include "../include/org_apache_subversion_javahl_util_RequestChannel.h"
#include "../include/org_apache_subversion_javahl_util_ResponseChannel.h"
#include "jniwrapper/jni_exception.hpp"
#include "jniwrapper/jni_channel.hpp"
#include "jniwrapper/jni_stack.hpp"
#include "svn_private_config.h"
namespace {
apr_file_t* get_file_descriptor(Java::Env env, jlong jfd)
{
apr_file_t* fd = reinterpret_cast<apr_file_t*>(jfd);
if (!fd)
Java::NullPointerException(env).raise("nativeChannel");
return fd;
}
void throw_IOException(Java::Env env, const char* message,
apr_status_t status)
{
char buf[1024];
std::string msg(message);
apr_strerror(status, buf, sizeof(buf) - 1);
msg += buf;
Java::IOException(env).raise(msg.c_str());
}
class TunnelReader : public Java::ChannelReader
{
public:
explicit TunnelReader(Java::Env env, jlong jnative_channel)
: m_fd(get_file_descriptor(env, jnative_channel))
{}
virtual jint operator()(Java::Env env, void* buffer, jint length)
{
if (!length)
return 0;
apr_size_t bytes_read = length;
const apr_status_t status = apr_file_read(m_fd, buffer, &bytes_read);
if (status && !APR_STATUS_IS_EOF(status))
{
throw_IOException(
env, _("Error reading from native file handle: "),
status);
return -1;
}
if (APR_STATUS_IS_EOF(status))
return -1;
return jint(bytes_read);
}
private:
apr_file_t* const m_fd;
};
class TunnelWriter : public Java::ChannelWriter
{
public:
explicit TunnelWriter(Java::Env env, jlong jnative_channel)
: m_fd(get_file_descriptor(env, jnative_channel))
{}
virtual jint operator()(Java::Env env, const void* buffer, jint length)
{
if (!length)
return 0;
apr_size_t bytes_written;
const apr_status_t status =
apr_file_write_full(m_fd, buffer, length, &bytes_written);
if (status)
{
throw_IOException(
env, _("Error writing to native file handle: "),
status);
return -1;
}
return jint(bytes_written);
}
private:
apr_file_t* const m_fd;
};
} // anonymous namespace
JNIEXPORT void JNICALL
Java_org_apache_subversion_javahl_util_TunnelChannel_nativeClose(
JNIEnv* jenv, jclass jclazz, jlong jnative_channel)
{
SVN_JAVAHL_JNI_TRY_STATIC(TunnelChannel, close)
{
const Java::Env env(jenv);
apr_file_t* const fd = get_file_descriptor(env, jnative_channel);
if (!fd)
return;
const apr_status_t status = apr_file_close(fd);
if (status)
throw_IOException(
env, _("Error closing native file handle: "),
status);
}
SVN_JAVAHL_JNI_CATCH;
}
JNIEXPORT jint JNICALL
Java_org_apache_subversion_javahl_util_RequestChannel_nativeRead(
JNIEnv* jenv, jclass jclazz, jlong jnative_channel, jobject jdst_buffer)
{
SVN_JAVAHL_JNI_TRY_STATIC(RequestChannel, read)
{
const Java::Env env(jenv);
TunnelReader reader(env, jnative_channel);
Java::ReadableByteChannel channel(env, reader);
return channel.read(jdst_buffer);
}
SVN_JAVAHL_JNI_CATCH;
return -1;
}
JNIEXPORT jint JNICALL
Java_org_apache_subversion_javahl_util_ResponseChannel_nativeWrite(
JNIEnv* jenv, jclass jclazz, jlong jnative_channel, jobject jsrc_buffer)
{
SVN_JAVAHL_JNI_TRY_STATIC(ResponseChannel, write)
{
const Java::Env env(jenv);
TunnelWriter writer(env, jnative_channel);
Java::WritableByteChannel channel(env, writer);
return channel.write(jsrc_buffer);
}
SVN_JAVAHL_JNI_CATCH;
return -1;
}
|
