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
|
/*
* Copyright (c) 2019 Cisco and/or its affiliates.
* Licensed 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.
*/
#include <jni.h>
#include <vlibapi/api_types.h>
#ifndef JVPP_STRING_T_H
#define JVPP_STRING_T_H
#endif //JVPP_STRING_T_H
//
// /**
// * Returns the length of jstring as size_t
// */
static size_t jstr_length(JNIEnv *env, jstring string)
{
return ((int) (*env)->GetStringUTFLength(env, string));
}
// /**
// * Host to network byte order conversion for string type. Converts String in Java to VPP string type.
// * typedef struct
// * {
// * u32 length;
// * u8 buf[0];
// * } __attribute__ ((packed)) vl_api_string_t;
// */
static void _host_to_net_string(JNIEnv * env, jstring javaString, vl_api_string_t * vl_api_string)
{
const char *nativeString;
// prevent null, which causes jni to crash
if (NULL != javaString) {
nativeString = (*env)->GetStringUTFChars(env, javaString, 0);
} else{
nativeString = "";
}
vl_api_to_api_string(jstr_length(env, javaString) + 1, nativeString, vl_api_string);
(*env)->ReleaseStringUTFChars(env, javaString, nativeString);
}
//
// /**
// * Network to host byte order conversion for string type. Converts VPP string type to String in Java
// * typedef struct
// * {
// * u32 length;
// * u8 buf[0];
// * } __attribute__ ((packed)) vl_api_string_t;
// */
static jstring _net_to_host_string(JNIEnv * env, const vl_api_string_t * _net)
{
return (*env)->NewStringUTF(env, (char *)_net->buf);
}
|
