void YYLibEvent::do_accept(evutil_socket_t listener, short event, void *arg)
{
listener_state * liststate = (listener_state*)arg;
if (!liststate)
return;
YYLibEvent * libevent = liststate->libevent;
if (!libevent) return;
struct sockaddr_storage ss;
socklen_t slen = sizeof(ss);
int fd = accept(listener, (struct sockaddr*)&ss, &slen);
if (fd < 0)
{
if (errno == EAGAIN || errno == EWOULDBLOCK || errno == EINTR)
{ // there is no connect
}
else if (errno == EMFILE)
{
closesocket(fd);
LOG::Error("fd is not enougth!!");
}
}
else
{
fd_state *state;
evutil_make_socket_nonblocking(fd);
state = alloc_fd_state(libevent, fd, liststate);
assert(state);
assert(state->write_event);
event_add(state->read_event, NULL);
}
}
void do_accept(evutil_socket_t listener, short event, void *arg)
{
struct event_base* base = (event_base*)arg;
struct sockaddr_storage ss;
socklen_t slen = sizeof(ss);
int fd = accept(listener, (struct sockaddr*)&ss, &slen);
if (fd < 0)
{
perror("accept");
}
else if(fd > FD_SETSIZE)
{
close(fd);
}
else
{
struct fd_state* state;
evutil_make_socket_nonblocking(fd);
state = alloc_fd_state(base, fd);
assert(state);
//assert(state->write_event);
assert(state->read_event);
//event_add(state->write_event, NULL);
//event_base_set(base, state->write_event);
struct timeval five_seconds = {5,0};
event_add(state->read_event, &five_seconds);
event_add(state->write_event, NULL);
//event_base_set(base, state->read_event);
}
}
void
WorkerServer::accept_callback(evutil_socket_t listen_fd, short event, void* arg)
{
std::cout << "accept client connect" << std::endl;
struct event *read_event;
struct event *error_event;
struct sockaddr_storage client;
socklen_t length = sizeof(client);
int fd = accept(listen_fd, (struct sockaddr*)&client, &length);
if(fd < 0)
{
if(errno == EAGAIN || errno == EWOULDBLOCK) {
std::cout << "errno" << std::endl;
close(fd);
return;
}
perror("accept error");
return;
} else {
struct fd_state *state;
evutil_make_socket_nonblocking(fd);
state = alloc_fd_state(base, fd);
event_add(state->read_event, 0);
}
}
void lh_epoll(int timeout) {
if (rs_state == rs_stopping) {
rs_state = rs_stopped;
close(_listener);
_listener = 0;
//fixme: free states
close(_epoll);
_epoll = 0;
lh_clear_callback();
return;
} else if (rs_state == rs_stopped) {
return;
}
int n = epoll_wait(_epoll, _events, MAXEVENTS, timeout);
for (int i = 0; i < n; i++){
struct epoll_event *event = _events + i;
if (_listener == event->data.fd) { //accept
struct sockaddr_storage ss;
socklen_t slen = sizeof(ss);
int fd = accept(_listener, (struct sockaddr*)&ss, &slen);
//static int na = 0;
//printf("accept:%d\n", ++na);
if (fd < 0) {
perror("accept");
} else {
int err = fcntl(fd, F_SETFL, O_NONBLOCK);
if (err){
perror ("make_non_blocking");
return;
}
struct fd_state *state = alloc_fd_state(fd);
struct epoll_event evt;
evt.data.ptr = state;
evt.events = EPOLLIN;
err = epoll_ctl (_epoll, EPOLL_CTL_ADD, fd, &evt);
if (err)
return;
}
} else {
struct fd_state *state = (struct fd_state*)event->data.ptr;
enum io_tatus status = s_ok;
if ((event->events & EPOLLERR) ||(event->events & EPOLLHUP)) { //error
free_fd_state(state);
} else if (event->events & EPOLLIN) { //read
status = do_read(state);
} else if (event->events & EPOLLOUT) { //write
status = do_write(state);
}
if (status == s_error || status == s_disconnect) {
free_fd_state(state);
}
}
}
}
void do_accept(evutil_socket_t listener, short event, void *arg)
{
struct event_base *base = arg;
struct sockaddr_storage ss;
socklen_t slen = sizeof(ss);
int fd = accept(listener, (struct sockaddr*)&ss, &slen);
if (fd < 0) { // XXXX eagain??
perror("accept");
} else if (fd > FD_SETSIZE) {
close(fd); // XXX replace all closes with EVUTIL_CLOSESOCKET */
} else {
struct fd_state *state;
evutil_make_socket_nonblocking(fd);
state = alloc_fd_state(base, fd);
assert(state); /*XXX err*/
assert(state->write_event);
event_add(state->read_event, NULL);
}
}
void run(void)
{
int listener;
struct fd_state *state[FD_SETSIZE];
struct sockaddr_in sin;
int i, maxfd;
fd_set readset, writeset, exset;
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = 0;
sin.sin_port = htons(8081);
for (i = 0; i < FD_SETSIZE; ++i)
state[i] = NULL;
listener = socket(AF_INET, SOCK_STREAM, 0);
make_nonblocking(listener);
if (bind(listener, (struct sockaddr*)&sin, sizeof(sin)) < 0) {
perror("bind");
return;
}
if (listen(listener, 16)<0) {
perror("listen");
return;
}
FD_ZERO(&readset);
FD_ZERO(&writeset);
FD_ZERO(&exset);
while (1) {
maxfd = listener;
FD_ZERO(&readset);
FD_ZERO(&writeset);
FD_ZERO(&exset);
FD_SET(listener, &readset);
for (i=0; i < FD_SETSIZE; ++i) {
if (state[i]) {
if (i > maxfd)
maxfd = i;
FD_SET(i, &readset);
if (state[i]->writing) {
FD_SET(i, &writeset);
}
}
}
if (select(maxfd+1, &readset, &writeset, &exset, NULL) < 0) {
perror("select");
return;
}
if (FD_ISSET(listener, &readset)) {
struct sockaddr_storage ss;
socklen_t slen = sizeof(ss);
int fd = accept(listener, (struct sockaddr*)&ss, &slen);
if (fd < 0) {
perror("accept");
} else if (fd > FD_SETSIZE) {
close(fd);
} else {
make_nonblocking(fd);
state[fd] = alloc_fd_state();
char send_buf[1024] = "Connected";
send(fd, send_buf, 1024, 0);
assert(state[fd]);/*XXX*/
}
}
for (i=0; i < maxfd+1; ++i) {
int r = 0;
if (i == listener)
continue;
if (FD_ISSET(i, &readset)) {
r = do_read(i, state[i]);
}
if (r == 0 && FD_ISSET(i, &writeset)) {
r = do_write(i, state[i]);
}
if (r) {
free_fd_state(state[i]);
state[i] = NULL;
close(i);
}
}
}
}
void
run(void)
{
evutil_socket_t sender;
struct sockaddr_in sin;
struct event_base *base;
struct event *write_event = NULL;
struct event *read_event = NULL;
struct fd_state *state;
int result;
base = event_base_new();
if (!base)
return; /*XXXerr*/
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = 0;
sin.sin_addr.s_addr = inet_addr("127.0.0.1");
sin.sin_port = htons(40713);
sender = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
evutil_make_socket_nonblocking(sender);
#ifndef WIN32
{
int one = 1;
setsockopt(sender, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one));
}
#endif
/*
if (bind(sender, (struct sockaddr*)&sin, sizeof(sin)) < 0) {
perror("bind");
return;
}
sender_event = event_new(base, sender, EV_READ|EV_PERSIST, do_read, (void*)base);
/-*XXX check it *-/
event_add(sender_event, NULL);
//*/
result = connect(sender, (struct sockaddr*)&sin, sizeof(sin));
if (result < 0 || result == SOCKET_ERROR) {
if (WSAGetLastError() == WSAEWOULDBLOCK) {
printf("WSAGetLastError() = WSAEWOULDBLOCK\r\n");
Sleep(1000);
printf("Press any key to continue...\r\n");
//system("pause");
}
else {
printf("connect error!\r\n");
printf("WSAGetLastError() = 0x%08X\r\n", WSAGetLastError());
system("pause");
perror("connect");
return;
}
}
//printf("Press any key to continue...\r\n");
//system("pause");
//write_event = event_new(base, sender, EV_WRITE|EV_PERSIST, do_write, (void*)base);
//read_event = event_new(base, sender, EV_READ |EV_PERSIST, do_read, (void*)base);
state = alloc_fd_state(base, sender);
/*
if (write_event) {
printf("event_add(write_event, NULL);\r\n");
event_add(write_event, NULL);
}
//*/
if (state && state->write_event) {
printf("event_add(state->write_event, NULL);\r\n");
event_add(state->write_event, NULL);
}
if (state && state->read_event) {
printf("event_add(state->read_event, NULL);\r\n");
event_add(state->read_event, NULL);
}
printf("event_base_dispatch(base);\r\n");
event_base_dispatch(base);
/*
if (write_event)
event_free(write_event);
if (read_event)
event_free(read_event);
//*/
if (state)
free_fd_state(state);
}