/*
=====================
转发教师端数据到所有学生端
=====================
*/
bool CHandleMessage::postTeacherToAllStudent (Buf* p, enum CommandType iCommandType)
{
#if 0
cout << "postTeacherToAllStudent ------------------------ " <<endl;
if (p == NULL)
return false;
int iLen = ((MSG_HEAD*)p->ptr())->cLen;
int iHeadLen = sizeof (MSG_HEAD);
Buf* pbuf = NULL;
CRoom* pc = ROOMMANAGER->get_room_by_fd (p->getfd());
if (pc != NULL) {
int i = 0;
CRoom::STUDENTMAP::iterator it;
for (it = pc->m_student_map.begin(); \
it != pc->m_student_map.end (); ++it)
{
i++;
pbuf = SINGLE->bufpool.malloc ();
if (pbuf != NULL) {
MSG_HEAD* head = (MSG_HEAD*)pbuf->ptr();
head->cLen = iLen;
head->cType = iCommandType;
if (iLen > iHeadLen) {
memcpy (head->cData(), (char*)p->ptr() + iHeadLen, iLen - iHeadLen);
}
pbuf->setsize (head->cLen);
pbuf->setfd (it->first);
SINGLE->sendqueue.enqueue (pbuf);
}
else {
cout << "Error: out of memory" << endl;
p->reset();
pbuf->reset();
SINGLE->bufpool.free(p);
SINGLE->bufpool.free(pbuf);
return false;
}
}
if ( 0 == i ) {
printf("send to %d students!\n", i);
}
}
else {
cout << __FILE__ << ":" <<__FUNCTION__<< ":" << __LINE__<<"Error: not found 'teacher_fd' in Room" << endl;
//p->reset();
SINGLE->bufpool.free(p);
return false;
}
p->reset();
SINGLE->bufpool.free(p);
#endif
return true;
}
int SendTask::work() {
while(true){
Buf* p = NULL;
if (0 != SINGLE->sendqueue.dequeue(p, 3)) {
continue;
}
int fd = p->getfd();
if (0 == fd) {
printf(" fd = 0 !\n");
continue;
}
#if 0
MSG_HEAD* pp = (MSG_HEAD*)p->ptr();
if ( pp->cType > 9999 ) {
struct sGetAllStudentInfo* xxx = (struct sGetAllStudentInfo*)pp->cData();
printf("id %d pic %s -- len:=%d\n", xxx->iStudentId, xxx->sPicName, pp->cLen);
}
unsigned int len = 0;
int cnt;
while (len < p->size()) {
cnt = send(fd, (char *)p->ptr() + len, p->size() - len, 0);
if (cnt == -1) {
cout << "send erroooooooooooooooooooooor" << endl;
break;
}
len += cnt;
}
printf ("ERRNO: %d, message:%s len = %d, p->size() = %ld\n", errno, strerror (errno), len ,p->size());
#else
int bytes_left = p->size ();
int written_bytes;
char* ptr = (char*) p->ptr();
while (bytes_left > 0)
{
written_bytes = send (fd, ptr, bytes_left, 0);
if (written_bytes <= 0) {
if (errno == EINTR) {
if (written_bytes < 0) written_bytes = 0;
continue;
}
else if (errno == EAGAIN) {
if (written_bytes < 0) written_bytes = 0;
sleep (1);
continue;
}
else
break;
}
bytes_left -= written_bytes;
ptr += written_bytes;
}
#endif
printf("Send data...finished. packetLength=%ld, from FD=[%d]\n", p->size(), fd);
p->reset();
SINGLE->bufpool.free(p);
}
return 0;
}
int SendTask::work ()
{
while (true)
{
Buf* p = NULL;
if (SINGLE->sendqueue.dequeue (p, 3) != 0)
{
continue;
}
int fd = p->getfd ();
if (fd <= 0)
{
cout << "[SEND] -- fd of buffer <= 0" << endl;
SINGLE->bufpool.free (p);
continue;
}
//
#if 0
cout << "Send cType: " << ((MSG_HEAD*)p->ptr())->cType <<endl;
printf ("address: %p\n", p);
if (((MSG_HEAD*)p->ptr())->cType == 187) {
cout << "-----------------------BEGIN-------------------------------------" << endl;
cout << "CTYPE: " << ((MSG_HEAD*) (p->ptr()))->cType << endl;
cout << "LEN: " << *(unsigned int*) ((char*)p->ptr() + MSG_HEAD_LEN) << endl;
cout << "STUDENT_ID: " << *(unsigned int*) ((char*)p->ptr() + MSG_HEAD_LEN + sizeof (unsigned int)) << endl;
cout << "STATUS: " << *(unsigned int*) ((char*)p->ptr() + MSG_HEAD_LEN + sizeof (int) + sizeof (int)) << endl;
cout << "STUDENT_ID: " << *(unsigned int*) ((char*)p->ptr() + MSG_HEAD_LEN + sizeof (int) + sizeof (int) + sizeof (int)) << endl;
cout << "STATUS: " << *(unsigned int*) ((char*)p->ptr() + MSG_HEAD_LEN + sizeof (int) + sizeof (int)+ sizeof (int) + sizeof (int)) << endl;
cout << "-------------------------END-----------------------------------" << endl;
}
#endif
// send fck message to clients
// must be need written bytes data finished
debugProtocol (p);
int bytes_left = p->size ();
int written_bytes;
char* ptr = (char*) p->ptr();
while (bytes_left > 0)
{
written_bytes = send (fd, ptr, bytes_left, 0);
if (written_bytes <= 0) {
if (errno == EINTR) {
if (written_bytes < 0) {
written_bytes = 0;
cout << "EINTR......" << endl;
continue;
}
}
else if (errno == EAGAIN) {
if (written_bytes < 0) {
written_bytes = 0;
usleep (50);
cout << "EAGAIN......" << endl;
continue;
}
}
else {
break;
}
}
bytes_left -= written_bytes;
ptr += written_bytes;
}
//printf("Send data...finished. packetLength=%ld, from FD=[%d]\n", p->size(), fd);
LOG(INFO) << "Send data ... finished. packet len=" << p->size() << ", from FD=" << fd << endl;
p->reset ();
SINGLE->bufpool.free (p);
}
return 0;
}