/* Reply has been mostly initialised by do_command */
void send_reply()
{
int i;
if ((vtcmd.cmd)==VTC_QUICK) { /* Only send buffer on a quick read */
writeP(portfd, &vtreply.cmd, 1);
if (vtreply.cmd!=VTC_QUICK) return; /* Must have been an error */
for (i=0; i< BLKSIZE; i++) writeP(portfd, &inbuf[i], 1);
return;
}
sum0 = 0;
sum1 = 0;
/* Transmit the reply */
write0(portfd, &vtreply.hdr1, 1);
write1(portfd, &vtreply.hdr2, 1);
write0(portfd, &vtreply.cmd, 1);
write1(portfd, &vtreply.record, 1);
if(block<0xff00)
{
unsigned char tmp;
tmp = block;
write0(portfd, &tmp, 1);
tmp = block>>8;
write1(portfd, &tmp, 1);
}
JNIEXPORT jint JNICALL Java_io_netty_channel_epoll_Native_write(JNIEnv * env, jclass clazz, jint fd, jobject jbuffer, jint pos, jint limit) {
void *buffer = (*env)->GetDirectBufferAddress(env, jbuffer);
if (buffer == NULL) {
throwRuntimeException(env, "Unable to access address of buffer");
return -1;
}
return write0(env, clazz, fd, buffer, pos, limit);
}
/********************************************************************
函数名称：write1byte
功 能：向I2C总线发送一个字节的数据
参 数：WriteData--发送的数据
返回值 ：无
********************************************************************/
void write1byte(uchar WriteData)
{
uchar i;
for(i = 8;i > 0;i--)
{
if(WriteData & 0x80) write1();
else write0();
WriteData <<= 1;
}
SDA_H;
_NOP();
}
JNIEXPORT jint JNICALL Java_io_netty_channel_epoll_Native_write(JNIEnv * env, jclass clazz, jint fd, jobject jbuffer, jint pos, jint limit) {
void *buffer = (*env)->GetDirectBufferAddress(env, jbuffer);
if (buffer == NULL) {
throwRuntimeException(env, "Unable to access address of buffer");
return -1;
}
jint res = write0(env, clazz, fd, buffer, pos, limit);
if (res > 0) {
// Increment the pos of the ByteBuffer as it may be only partial written to prevent data-corruption later once we
// try to write the remaining data.
// See https://github.com/netty/netty/issues/2371
incrementPosition(env, jbuffer, res);
}
return res;
}
// pat added: write an Optional Field controlled by an initial 0/1 field.
void MsgCommonWrite::writeOptField01(uint64_t value, unsigned len, int present, const char*)
{
if (present) { write1(); writeField(value,len); } else { write0(); }
}
JNIEXPORT jint JNICALL Java_io_netty_channel_epoll_Native_writeAddress(JNIEnv * env, jclass clazz, jint fd, jlong address, jint pos, jint limit) {
return write0(env, clazz, fd, (void *) address, pos, limit);
}
