TTServer/cpp/src/base/EventDispatch.cpp at master · codeindeep/TTServer · GitHub

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#include "EventDispatch.h"

#include "BaseSocket.h"

#define MIN_TIMER_DURATION 100 // 100 miliseconds

CEventDispatch* CEventDispatch::m_pEventDispatch = NULL;

CEventDispatch::CEventDispatch()

{

#ifdef _WIN32

FD_ZERO(&m_read_set);

FD_ZERO(&m_write_set);

FD_ZERO(&m_excep_set);

#elif __APPLE__

m_kqfd = kqueue();

if (m_kqfd == -1)

{

log("kqueue failed\n");

}

#else

m_epfd = epoll_create(1024);

if (m_epfd == -1)

{

log("epoll_create failed\n");

}

#endif

}

CEventDispatch::~CEventDispatch()

{

#ifdef _WIN32

#elif __APPLE__

close(m_kqfd);

#else

close(m_epfd);

#endif

}

void CEventDispatch::AddTimer(callback_t callback, void* user_data, uint64_t interval)

{

list<TimerItem*>::iterator it;

for (it = m_timer_list.begin(); it != m_timer_list.end(); it++)

{

TimerItem* pItem = *it;

if (pItem->callback == callback && pItem->user_data == user_data)

{

pItem->interval = interval;

pItem->next_tick = get_tick_count() + interval;

return;

}

TimerItem* pItem = new TimerItem;

pItem->callback = callback;

pItem->user_data = user_data;

pItem->interval = interval;

pItem->next_tick = get_tick_count() + interval;

m_timer_list.push_back(pItem);

}

void CEventDispatch::RemoveTimer(callback_t callback, void* user_data)

{

list<TimerItem*>::iterator it;

for (it = m_timer_list.begin(); it != m_timer_list.end(); it++)

{

TimerItem* pItem = *it;

if (pItem->callback == callback && pItem->user_data == user_data)

{

m_timer_list.erase(it);

delete pItem;

return;

}

void CEventDispatch::_CheckTimer()

{

uint64_t curr_tick = get_tick_count();

list<TimerItem*>::iterator it;

for (it = m_timer_list.begin(); it != m_timer_list.end(); )

{

TimerItem* pItem = *it;

it++; // iterator maybe deleted in the callback, so we should increment it before callback

if (curr_tick >= pItem->next_tick)

{

pItem->next_tick += pItem->interval;

pItem->callback(pItem->user_data, NETLIB_MSG_TIMER, 0, NULL);

}

CEventDispatch* CEventDispatch::Instance()

{

if (m_pEventDispatch == NULL)

{

m_pEventDispatch = new CEventDispatch();

}

return m_pEventDispatch;

}

#ifdef _WIN32

void CEventDispatch::AddEvent(SOCKET fd, uint8_t socket_event)

{

CFuncLock func_lock(&m_lock);

if ((socket_event & SOCKET_READ) != 0)

{

FD_SET(fd, &m_read_set);

}

if ((socket_event & SOCKET_WRITE) != 0)

{

FD_SET(fd, &m_write_set);

}

if ((socket_event & SOCKET_EXCEP) != 0)

{

FD_SET(fd, &m_excep_set);

}

void CEventDispatch::RemoveEvent(SOCKET fd, uint8_t socket_event)

{

CFuncLock func_lock(&m_lock);

if ((socket_event & SOCKET_READ) != 0)

{

FD_CLR(fd, &m_read_set);

}

if ((socket_event & SOCKET_WRITE) != 0)

{

FD_CLR(fd, &m_write_set);

}

if ((socket_event & SOCKET_EXCEP) != 0)

{

FD_CLR(fd, &m_excep_set);

}

void CEventDispatch::StartDispatch()

{

fd_set read_set, write_set, excep_set;

timeval timeout;

timeout.tv_sec = 0;

timeout.tv_usec = MIN_TIMER_DURATION * 1000; // 10 millisecond

while (true)

{

_CheckTimer();

if (!m_read_set.fd_count && !m_write_set.fd_count && !m_excep_set.fd_count)

{

Sleep(MIN_TIMER_DURATION);

continue;

}

m_lock.Lock();

memcpy(&read_set, &m_read_set, sizeof(fd_set));

memcpy(&write_set, &m_write_set, sizeof(fd_set));

memcpy(&excep_set, &m_excep_set, sizeof(fd_set));

m_lock.Unlock();

int nfds = select(0, &read_set, &write_set, &excep_set, &timeout);

if (nfds == SOCKET_ERROR)

{

log("select failed, error code: %d\n", GetLastError());

Sleep(MIN_TIMER_DURATION);

continue; // select again

}

if (nfds == 0)

{

continue;

}

for (u_int i = 0; i < read_set.fd_count; i++)

{

//log("select return read count=%d\n", read_set.fd_count);

SOCKET fd = read_set.fd_array[i];

CBaseSocket* pSocket = FindBaseSocket((net_handle_t)fd);

if (pSocket)

{

pSocket->OnRead();

pSocket->ReleaseRef();

}

for (u_int i = 0; i < write_set.fd_count; i++)

{

//log("select return write count=%d\n", write_set.fd_count);

SOCKET fd = write_set.fd_array[i];

CBaseSocket* pSocket = FindBaseSocket((net_handle_t)fd);

if (pSocket)

{

pSocket->OnWrite();

pSocket->ReleaseRef();

}

for (u_int i = 0; i < excep_set.fd_count; i++)

{

//log("select return exception count=%d\n", excep_set.fd_count);

SOCKET fd = excep_set.fd_array[i];

CBaseSocket* pSocket = FindBaseSocket((net_handle_t)fd);

if (pSocket)

{

pSocket->OnClose();

pSocket->ReleaseRef();

}

#elif __APPLE__

void CEventDispatch::AddEvent(SOCKET fd, uint8_t socket_event)

{

struct kevent ke;

if ((socket_event & SOCKET_READ) != 0)

{

EV_SET(&ke, fd, EVFILT_READ, EV_ADD, 0, 0, NULL);

kevent(m_kqfd, &ke, 1, NULL, 0, NULL);

}

if ((socket_event & SOCKET_WRITE) != 0)

{

EV_SET(&ke, fd, EVFILT_WRITE, EV_ADD, 0, 0, NULL);

kevent(m_kqfd, &ke, 1, NULL, 0, NULL);

}

void CEventDispatch::RemoveEvent(SOCKET fd, uint8_t socket_event)

{

struct kevent ke;

if ((socket_event & SOCKET_READ) != 0)

{

EV_SET(&ke, fd, EVFILT_READ, EV_DELETE, 0, 0, NULL);

kevent(m_kqfd, &ke, 1, NULL, 0, NULL);

}

if ((socket_event & SOCKET_WRITE) != 0)

{

EV_SET(&ke, fd, EVFILT_WRITE, EV_DELETE, 0, 0, NULL);

kevent(m_kqfd, &ke, 1, NULL, 0, NULL);

}

void CEventDispatch::StartDispatch()

{

struct kevent events[1024];

int nfds = 0;

struct timespec timeout;

timeout.tv_sec = 0;

timeout.tv_nsec = MIN_TIMER_DURATION * 1000000;

while (true)

{

nfds = kevent(m_kqfd, NULL, 0, events, 1024, &timeout);

for (int i = 0; i < nfds; i++)

{

int ev_fd = events[i].ident;

CBaseSocket* pSocket = FindBaseSocket(ev_fd);

if (!pSocket)

continue;

if (events[i].filter == EVFILT_READ)

{

//log("OnRead, socket=%d\n", ev_fd);

pSocket->OnRead();

}

if (events[i].filter == EVFILT_WRITE)

{

//log("OnWrite, socket=%d\n", ev_fd);

pSocket->OnWrite();

}

pSocket->ReleaseRef();

}

_CheckTimer();

}

#else

void CEventDispatch::AddEvent(SOCKET fd, uint8_t socket_event)

{

struct epoll_event ev;

ev.data.fd = fd;

if (epoll_ctl(m_epfd, EPOLL_CTL_ADD, fd, &ev) != 0)

{

log("epoll_ctl() failed, errno=\n", errno);

}

void CEventDispatch::RemoveEvent(SOCKET fd, uint8_t socket_event)

{

if (epoll_ctl(m_epfd, EPOLL_CTL_DEL, fd, NULL) != 0)

{

log("epoll_ctl failed, errno=%d\n", errno);

}

void CEventDispatch::StartDispatch()

{

struct epoll_event events[1024];

int nfds = 0;

while (true)

{

nfds = epoll_wait(m_epfd, events, 1024, MIN_TIMER_DURATION);

for (int i = 0; i < nfds; i++)

{

int ev_fd = events[i].data.fd;

CBaseSocket* pSocket = FindBaseSocket(ev_fd);

if (!pSocket)

continue;

if (events[i].events & EPOLLIN)

{

//log("OnRead, socket=%d\n", ev_fd);

pSocket->OnRead();

}

if (events[i].events & EPOLLOUT)

{

//log("OnWrite, socket=%d\n", ev_fd);

pSocket->OnWrite();

}

if (events[i].events & (EPOLLPRI | EPOLLERR | EPOLLHUP))

{

//log("OnClose, socket=%d\n", ev_fd);

pSocket->OnClose();

}

pSocket->ReleaseRef();

}

_CheckTimer();

}

#endif

TTServer/cpp/src/base/EventDispatch.cpp at master · codeindeep/TTServer · GitHub

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