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
|
/* File : example.i */
%module example
%{
#include <string.h>
typedef struct point {
int x;
int y;
} Point;
Point *point_create(int x, int y) {
Point *p = (Point *) malloc(sizeof(Point));
p->x = x;
p->y = y;
return p;
}
static char *point_toString(char *format, Point *p) {
static char buf[80];
sprintf(buf, format, p->x, p->y);
return buf;
}
/* this function will be wrapped by SWIG */
char *point_toString1(Point *p) {
return point_toString("(%d,%d)", p);
}
/* this one we wrapped manually*/
JNIEXPORT jstring JNICALL Java_exampleJNI_point_1toString2(JNIEnv *jenv, jclass jcls, jlong jpoint) {
Point * p;
jstring result;
(void)jcls;
p = *(Point **)&jpoint;
result = (*jenv)->NewStringUTF(jenv, point_toString("[%d,%d]", p));
return result;
}
%}
Point *point_create(int x, int y);
char *point_toString1(Point *p);
/* give access to free() for memory cleanup of the malloc'd Point */
extern void free(void *memblock);
%native(point_toString2) char *point_toString2(Point *p);
|
