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Last change
on this file was 1392, checked in by bird, 21 years ago |
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This commit was generated by cvs2svn to compensate for changes in r1391,
which included commits to RCS files with non-trunk default branches.
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Property cvs2svn:cvs-rev
set to
1.1.1.2
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Property svn:eol-style
set to
native
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Property svn:executable
set to
*
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File size:
1001 bytes
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| 1 | #include <jni.h>
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| 2 | #include "martin.h"
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| 3 | #include <stdio.h>
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| 4 |
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| 5 | JNIEXPORT void JNICALL
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| 6 | Java_martin_myNative(JNIEnv* env, jobject this, jstring s)
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| 7 | {
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| 8 | jclass cls;
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| 9 | jfieldID fid;
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| 10 | jobject obj;
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| 11 | jmethodID mid;
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| 12 |
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| 13 | printf("From C\n");
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| 14 | fflush(stdout);
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| 15 |
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| 16 | cls = (*env)->FindClass(env, "java/lang/System");
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| 17 | if (cls == 0) {
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| 18 | printf("java/lang/System lookup failed\n");
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| 19 | return;
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| 20 | }
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| 21 | fid = (*env)->GetStaticFieldID(env, cls, "out", "Ljava/io/PrintStream;");
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| 22 | if (fid == 0) {
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| 23 | printf("java/lang/System::out lookup failed\n");
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| 24 | return;
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| 25 | }
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| 26 | obj = (*env)->GetStaticObjectField(env, cls, fid);
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| 27 | if (obj == 0) {
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| 28 | printf("GetStaticObjectField call failed\n");
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| 29 | return;
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| 30 | }
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| 31 | cls = (*env)->GetObjectClass(env, obj);
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| 32 | if (cls == 0) {
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| 33 | printf("GetObjectClass(out) failed\n");
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| 34 | return;
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| 35 | }
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| 36 | mid = (*env)->GetMethodID(env, cls, "println", "(Ljava/lang/String;)V");
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| 37 | if (mid == 0) {
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| 38 | printf("println method lookup failed\n");
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| 39 | return;
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| 40 | }
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| 41 | (*env)->CallVoidMethod(env, obj, mid, s);
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| 42 | }
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| 43 |
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