37 Java_java_util_zip_CRC32_update(JNIEnv *env, jclass cls, jint crc, jint b)
38 {
39 Bytef buf[1];
40
41 buf[0] = (Bytef)b;
42 return crc32(crc, buf, 1);
43 }
44
45 JNIEXPORT jint JNICALL
46 Java_java_util_zip_CRC32_updateBytes0(JNIEnv *env, jclass cls, jint crc,
47 jarray b, jint off, jint len)
48 {
49 Bytef *buf = (*env)->GetPrimitiveArrayCritical(env, b, 0);
50 if (buf) {
51 crc = crc32(crc, buf + off, len);
52 (*env)->ReleasePrimitiveArrayCritical(env, b, buf, 0);
53 }
54 return crc;
55 }
56
57 JNIEXPORT jint JNICALL
58 ZIP_CRC32(jint crc, const jbyte *buf, jint len)
59 {
60 return crc32(crc, (Bytef*)buf, len);
61 }
62
63 JNIEXPORT jint JNICALL
64 Java_java_util_zip_CRC32_updateByteBuffer0(JNIEnv *env, jclass cls, jint crc,
65 jlong address, jint off, jint len)
66 {
67 Bytef *buf = (Bytef *)jlong_to_ptr(address);
68 if (buf) {
69 crc = crc32(crc, buf + off, len);
70 }
71 return crc;
72 }
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37 Java_java_util_zip_CRC32_update(JNIEnv *env, jclass cls, jint crc, jint b)
38 {
39 Bytef buf[1];
40
41 buf[0] = (Bytef)b;
42 return crc32(crc, buf, 1);
43 }
44
45 JNIEXPORT jint JNICALL
46 Java_java_util_zip_CRC32_updateBytes0(JNIEnv *env, jclass cls, jint crc,
47 jarray b, jint off, jint len)
48 {
49 Bytef *buf = (*env)->GetPrimitiveArrayCritical(env, b, 0);
50 if (buf) {
51 crc = crc32(crc, buf + off, len);
52 (*env)->ReleasePrimitiveArrayCritical(env, b, buf, 0);
53 }
54 return crc;
55 }
56
57 JNIEXPORT jint
58 ZIP_CRC32(jint crc, const jbyte *buf, jint len)
59 {
60 return crc32(crc, (Bytef*)buf, len);
61 }
62
63 JNIEXPORT jint JNICALL
64 Java_java_util_zip_CRC32_updateByteBuffer0(JNIEnv *env, jclass cls, jint crc,
65 jlong address, jint off, jint len)
66 {
67 Bytef *buf = (Bytef *)jlong_to_ptr(address);
68 if (buf) {
69 crc = crc32(crc, buf + off, len);
70 }
71 return crc;
72 }
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