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#include "poller.h" 
#include "pollerimpl.h" 
 
#include <util/memory/tempbuf.h> 
 
namespace { 
    struct TMutexLocking { 
        using TMyMutex = TMutex;
    }; 
} 
 
class TSocketPoller::TImpl: public TPollerImpl<TMutexLocking> { 
public: 
    inline size_t DoWaitReal(void** ev, TEvent* events, size_t len, const TInstant& deadLine) { 
        const size_t ret = WaitD(events, len, deadLine); 
 
        for (size_t i = 0; i < ret; ++i) { 
            ev[i] = ExtractEvent(&events[i]); 
        }
 
        return ret; 
    } 
 
    inline size_t DoWait(void** ev, size_t len, const TInstant& deadLine) { 
        if (len == 1) { 
            TEvent tmp; 
 
            return DoWaitReal(ev, &tmp, 1, deadLine); 
        } else { 
            TTempArray<TEvent> tmpEvents(len); 
 
            return DoWaitReal(ev, tmpEvents.Data(), len, deadLine); 
        } 
    } 
}; 

TSocketPoller::TSocketPoller() 
    : Impl_(new TImpl()) 
{ 
} 
 
TSocketPoller::~TSocketPoller() = default;
 
void TSocketPoller::WaitRead(SOCKET sock, void* cookie) { 
    Impl_->Set(cookie, sock, CONT_POLL_READ); 
} 
 
void TSocketPoller::WaitWrite(SOCKET sock, void* cookie) { 
    Impl_->Set(cookie, sock, CONT_POLL_WRITE); 
} 
 
void TSocketPoller::WaitReadWrite(SOCKET sock, void* cookie) {
    Impl_->Set(cookie, sock, CONT_POLL_READ | CONT_POLL_WRITE);
}

void TSocketPoller::WaitRdhup(SOCKET sock, void* cookie) {
    Impl_->Set(cookie, sock, CONT_POLL_RDHUP);
}

void TSocketPoller::WaitReadOneShot(SOCKET sock, void* cookie) {
    Impl_->Set(cookie, sock, CONT_POLL_READ | CONT_POLL_ONE_SHOT);
}

void TSocketPoller::WaitWriteOneShot(SOCKET sock, void* cookie) {
    Impl_->Set(cookie, sock, CONT_POLL_WRITE | CONT_POLL_ONE_SHOT);
}

void TSocketPoller::WaitReadWriteOneShot(SOCKET sock, void* cookie) {
    Impl_->Set(cookie, sock, CONT_POLL_READ | CONT_POLL_WRITE | CONT_POLL_ONE_SHOT);
}

void TSocketPoller::WaitReadWriteEdgeTriggered(SOCKET sock, void* cookie) {
    Impl_->Set(cookie, sock, CONT_POLL_READ | CONT_POLL_WRITE | CONT_POLL_EDGE_TRIGGERED); 
}

void TSocketPoller::RestartReadWriteEdgeTriggered(SOCKET sock, void* cookie, bool empty) {
    Impl_->Set(cookie, sock, CONT_POLL_READ | CONT_POLL_WRITE | CONT_POLL_MODIFY | CONT_POLL_EDGE_TRIGGERED | (empty ? CONT_POLL_BACKLOG_EMPTY : 0)); 
}

void TSocketPoller::Unwait(SOCKET sock) { 
    Impl_->Remove(sock); 
} 
 
size_t TSocketPoller::WaitD(void** ev, size_t len, const TInstant& deadLine) { 
    return Impl_->DoWait(ev, len, deadLine); 
}