int BufferManager::write(UDPSocket& sock)
{
std::list<iov_req>::iterator aIt,pIt;
int ret = -1;
aIt = m_lIovList.begin();
int download = 0 ;
for(;aIt != m_lIovList.end();)
{
pIt = aIt;
ret = sock.writeSocket((char *)(pIt->m_Iov.iov_base),pIt->m_Iov.iov_len,pIt->m_UDPAddr);
if(ret < 0)
{
if( EINTR == errno)
continue;
if(errno == EWOULDBLOCK)
return SUCCESSFUL;
else
{
handleError("BufferManager::write(UDPScoket & sock)");
if(pIt->m_pTask)
pIt->m_pTask->writeBack(false);
else
{
if(m_pAgent)
m_pAgent->writeBack(false);
else
handleError("BufferManager don't be relate with a Agent");
}
return FAILED;
}
}
download += ret;
if((size_t)ret < pIt->m_Iov.iov_len)
{
pIt->m_Iov.iov_base = (void *)(((char *)(pIt->m_Iov.iov_base)) + ret);
pIt->m_Iov.iov_len -= (size_t)ret;
pIt->m_bComplete = false;
m_pLastIov = pIt->m_Iov.iov_base;
break;
}
else
{
if(pIt->m_bComplete)
{
if(pIt->m_Iov.iov_base)
{
delete [](char *)(pIt->m_Iov.iov_base);
pIt->m_Iov.iov_base = NULL;
}
} else {
if(m_pLastIov)
{
delete [](char *)m_pLastIov;
m_pLastIov = NULL;
}
}
++aIt;
m_lIovList.erase(pIt);
if(pIt->m_pTask)
pIt->m_pTask->writeBack(true);
else
{
if(m_pAgent)
m_pAgent->writeBack(true);
else
{
handleError("BufferManager don't be relate with a agent");
return FAILED;
}
}
}
}
return download;
}
int BufferManager::write(UDPSocket &sock)
{
list<iov_req>::iterator aIt, pIt;
aIt = mIovList.begin();
int ret = -1;
int download = 0;
for (; aIt != mIovList.end();) {
pIt = aIt;
ret = sock.writeSocket((char *)((*pIt).mIov.iov_base),
(*pIt).mIov.iov_len, (*pIt).mUDPAddr);
if (ret < 0) {
if (errno == EINTR) {
continue;
} else if (errno == EWOULDBLOCK) {
return SUCCESSFUL;
} else {
DEV_LOG(LERROR, OUT_BOTH, "BufferManager::write(UDPSocket& sock)");
if ((*pIt).mTask != NULL) {
(*pIt).mTask->writeBack(false);
} else {
if (m_Agent != NULL) {
m_Agent->writeBack(false);
} else {
DEV_LOG(LERROR, OUT_BOTH, "the BufferManager don't relate a Agent");
}
}
return FAILED;
}
}
download += ret;
if ((unsigned int)ret < (*pIt).mIov.iov_len) { //in linux, the type of iovec.iov_len is size_t, not int(in windows)
(*pIt).mIov.iov_base = (void *)((char *)((*pIt).mIov.iov_base) + ret);
(*pIt).mIov.iov_len -= (unsigned int)ret;
mLastIov = (*pIt).mIov.iov_base;
(*pIt).mComplete = false;
break;
} else {
if ((*pIt).mComplete) {
if ((*pIt).mIov.iov_base) {
delete [](char *)(*pIt).mIov.iov_base;
(*pIt).mIov.iov_base = NULL;
}
} else {
if (mLastIov != NULL) {
delete [](char *)mLastIov;
mLastIov = NULL;
}
}
++aIt;
mIovList.erase(pIt);
if ((*pIt).mTask != NULL) {
(*pIt).mTask->writeBack(true);
} else {
if (m_Agent != NULL) {
m_Agent->writeBack(true);
} else {
DEV_LOG(LERROR, OUT_BOTH, "the BufferManager don't relate a Agent");
return FAILED;
}
}
}
}
return download;
}