/*
* Class: org_jnetpcap_nio_JBuffer
* Method: setInt0
* Signature: (JZII)V
*/
JNIEXPORT void JNICALL Java_org_jnetpcap_nio_JBuffer_setInt0
(JNIEnv *env, jclass clazz, jlong address, jboolean big, jint index, jint jval) {
u_int32_t *mem = (u_int32_t *)toPtr(address + index);
*(mem) = ENDIAN32_GET(big, jval);
}
/*
* Class: org_jnetpcap_nio_JBuffer
* Method: setUInt0
* Signature: (JZIJ)V
*/
JNIEXPORT void JNICALL Java_org_jnetpcap_nio_JBuffer_setUInt0
(JNIEnv *env, jclass clazz, jlong address, jboolean big, jint index, jlong jval) {
uint32_t *mem = (uint32_t *)toPtr(address + index);
register jint temp = (jint) jval;
*(mem) = ENDIAN32_GET(big, temp);
}
/*
* Class: org_jnetpcap_nio_JBuffer
* Method: getInt0
* Signature: (JZI)I
*/
JNIEXPORT jint JNICALL Java_org_jnetpcap_nio_JBuffer_getInt0
(JNIEnv *env, jclass clazz, jlong address, jboolean big, jint index) {
jint *mem = (jint *)toPtr(address + index);
/*
* For efficiency of the endian byte swapping, convert to an atom and use
* a CPU register if possible during conversion.
*/
register jint data = *(mem);
return ENDIAN32_GET(big, data);
}
/*
* Class: org_jnetpcap_nio_JBuffer
* Method: getUInt0
* Signature: (JZI)J
*/
JNIEXPORT jlong JNICALL Java_org_jnetpcap_nio_JBuffer_getUInt0
(JNIEnv *env, jclass clazz, jlong address, jboolean big, jint index) {
address += index;
/*
* For efficiency of the endian byte swapping, convert to an atom and use
* a CPU register if possible during conversion.
*/
register uint32_t data = UINT32_GETA(address);
return (jlong) ENDIAN32_GET(big, data);
}
/*
* Class: org_jnetpcap_nio_JBuffer
* Method: setFloat0
* Signature: (JZIF)V
*/
JNIEXPORT void JNICALL Java_org_jnetpcap_nio_JBuffer_setFloat0
(JNIEnv *env, jclass clazz, jlong address, jboolean big, jint index, jfloat jval) {
u_int32_t *mem = (u_int32_t *)toPtr(address + index);
/*
* For efficiency of the endian byte swapping, convert to an atom and use
* a CPU register if possible during conversion.
*/
u_int32_t data = *(u_int32_t *)(&jval);
/*
* We can't just typecast u_int32 to a float. The float has to be read
* out of memory using a float pointer.
*/
*(mem) = ENDIAN32_GET(big, data);
}
/*
* Class: org_jnetpcap_nio_JBuffer
* Method: getFloat0
* Signature: (JZI)F
*/
JNIEXPORT jfloat JNICALL Java_org_jnetpcap_nio_JBuffer_getFloat0
(JNIEnv *env, jclass clazz, jlong address, jboolean big, jint index) {
address += index;
/*
* For efficiency of the endian byte swapping, convert to an atom and use
* a CPU register if possible during conversion.
*/
uint32_t data = UINT64_GETA(address);
/*
* We can't just typecast uint32 to a float. The float has to be read
* out of memory using a float pointer.
*/
data = ENDIAN32_GET(big, data);
return *((jfloat *)&data);
}
