void epoll_pwait_test()
{
auto start = std::chrono::steady_clock::now();
{
struct epoll_event events[MAX_EVENTS];
struct epoll_event ev;
int timeout;
int retval;
int epollfd = epoll_create1(0);
/* Watch stdin (fd 0) to see when it has input. */
ev.events = EPOLLIN;
ev.data.fd = 0;
if (epoll_ctl(epollfd, EPOLL_CTL_ADD, 0, &ev) == -1)
{
perror("epoll_ctl");
return;
}
/* Wait up to five seconds. */
timeout = 5000;
retval = epoll_pwait(epollfd, events, MAX_EVENTS, timeout, NULL);
/* Don't rely on the value of tv now! */
}
auto end = std::chrono::steady_clock::now();
std::chrono::duration<double> duration = end - start;
{
std::lock_guard<std::mutex> lock(s_mutex);
std::cout << __func__ << ": " << duration.count() << std::endl;
}
}
int Epoll_pwait(int epfd, struct epoll_event *events,
int maxevents, int timeout,
const sigset_t *sigmask)
{
int rc;
if((rc = epoll_pwait(epfd,events,maxevents,timeout,sigmask)) == -1)
unix_error("Epoll_wait error");
return rc;
}
static int epoll_pwait_loop(void)
{
int i;
/* Should fail NR_ITERS times */
for (i = 0; i < NR_ITERS; i++)
epoll_pwait(-(i + 1), NULL, 0, 0, NULL);
return 0;
}
const EPollIterable& EPoll::wait(int timeout) {
sigset_t sigset;
sigemptyset(&sigset);
event_count = epoll_pwait(efd, &events[0], events.size(), timeout, &sigset);
if(event_count < 0) {
if(errno == EINTR)
event_count = 0;
else
errno_to_exception();
}
return iterable;
}
int main (void)
{
#if defined(HAVE_SIGNALFD) && defined(HAVE_EVENTFD) \
&& defined(HAVE_EVENTFD_READ) && defined(HAVE_PPOLL)
{
sigset_t mask;
int fd, fd2;
eventfd_t ev;
struct timespec ts = { .tv_sec = 1, .tv_nsec = 0 };
struct pollfd pfd[2];
sigemptyset (&mask);
sigaddset (&mask, SIGUSR1);
fd = signalfd (-1, &mask, 0);
sigaddset (&mask, SIGUSR2);
fd = signalfd (fd, &mask, 0);
fd2 = eventfd (5, 0);
eventfd_read (fd2, &ev);
pfd[0].fd = fd;
pfd[0].events = POLLIN|POLLOUT;
pfd[1].fd = fd2;
pfd[1].events = POLLIN|POLLOUT;
ppoll (pfd, 2, &ts, &mask);
}
#endif
#if defined(HAVE_UTIMENSAT)
unlink("/tmp/valgrind-utimensat-test");
close (creat ("/tmp/valgrind-utimensat-test", S_IRUSR | S_IWUSR));
{
struct timespec ts2[2] = { [0].tv_sec = 10000000, [1].tv_sec = 20000000 };
utimensat (AT_FDCWD, "/tmp/valgrind-utimensat-test", ts2, 0);
}
unlink("/tmp/valgrind-utimensat-test");
#endif
#if defined(HAVE_EPOLL_CREATE) && defined(HAVE_EPOLL_PWAIT)
{
int fd3;
struct epoll_event evs[10];
sigset_t mask;
sigemptyset (&mask);
sigaddset (&mask, SIGUSR1);
sigaddset (&mask, SIGUSR2);
fd3 = epoll_create (10);
epoll_pwait (fd3, evs, 10, 0, &mask);
}
#endif
return 0;
}
int pty_exec(int use_shell, char * const* argv){
int timeout = 50;
char buf[BUFSIZ];
pid_t pid;
int master_fd, slave_fd, epfd, nfds;
int ret,flags, status;
struct epoll_event ev, events[1];
ssize_t nread;
sigset_t mask;
sigemptyset(&mask);
sigaddset(&mask, SIGCHLD);
ret = openpty(&master_fd, &slave_fd, NULL, NULL, NULL);
if ( ret == -1){
perror("openpty");
return 1;
}
//fork to exec cmd and monitor output
pid = fork();
if ( pid > 0 ){
//***parent: read and print child output***
close(slave_fd);
//handle child exit
signal(SIGCHLD, child_handler);
//set pty fd to non blocking mode
flags = fcntl(master_fd, F_GETFL, 0);
fcntl(master_fd, F_SETFL, flags | O_NONBLOCK);
//read cmd output with epoll
epfd = epoll_create(1);
if(epfd == -1 ){
perror("epoll_create");
return(1);
}
ev.events = EPOLLIN | EPOLLHUP;
ev.data.fd = master_fd;
epoll_ctl(epfd, EPOLL_CTL_ADD, master_fd, &ev);
while(1){
if(exit_status != -1){
break; //child exited
}
nfds = epoll_pwait(epfd, events, 1, timeout, &mask);
if(nfds < 0){
if (errno == EINTR){
continue; //interrupted by signal etc...
}
perror("epoll_wait");
exit(1);
}
if (nfds == 0 ){
continue; //time out , nothing to read
}
if(events[0].events & EPOLLIN){
nread = read(events[0].data.fd, buf, BUFSIZ);
if (nread == -1){
perror("read");
break;
}
write(1, buf, nread);
}
if(events[0].events & EPOLLHUP){
//pty slave closed
break;
}
}
if(exit_status == -1){
//SIGCHLD maybe lost, collect status.
if (wait(&status) != -1 )
exit_status = WEXITSTATUS(status);
}
return exit_status;
}else{
/*child: redirect stdin, stdout, and stderr to slave_fd
* I am child of old session, impossible to be session leader.
* so when pty is closed, no HUP will be sent to me
*/
close(master_fd);
dup2(slave_fd, 1);
dup2(slave_fd, 2);
if(use_shell){
ret = execlp("sh", "sh", "-c", argv[0], NULL);
}else{
ret = execvp(argv[0], argv);
}
if (ret == -1 ){
perror("exec");
exit(1);
}
}
return 0;
}
void uv__io_poll(uv_loop_t* loop, int timeout) {
/* A bug in kernels < 2.6.37 makes timeouts larger than ~30 minutes
* effectively infinite on 32 bits architectures. To avoid blocking
* indefinitely, we cap the timeout and poll again if necessary.
*
* Note that "30 minutes" is a simplification because it depends on
* the value of CONFIG_HZ. The magic constant assumes CONFIG_HZ=1200,
* that being the largest value I have seen in the wild (and only once.)
*/
static const int max_safe_timeout = 1789569;
struct epoll_event events[1024];
struct epoll_event* pe;
struct epoll_event e;
int real_timeout;
QUEUE* q;
uv__io_t* w;
sigset_t sigset;
sigset_t* psigset;
uint64_t base;
int have_signals;
int nevents;
int count;
int nfds;
int fd;
int op;
int i;
if (loop->nfds == 0) {
assert(QUEUE_EMPTY(&loop->watcher_queue));
return;
}
memset(&e, 0, sizeof(e));
while (!QUEUE_EMPTY(&loop->watcher_queue)) {
q = QUEUE_HEAD(&loop->watcher_queue);
QUEUE_REMOVE(q);
QUEUE_INIT(q);
w = QUEUE_DATA(q, uv__io_t, watcher_queue);
assert(w->pevents != 0);
assert(w->fd >= 0);
assert(w->fd < (int) loop->nwatchers);
e.events = w->pevents;
e.data.fd = w->fd;
if (w->events == 0)
op = EPOLL_CTL_ADD;
else
op = EPOLL_CTL_MOD;
/* XXX Future optimization: do EPOLL_CTL_MOD lazily if we stop watching
* events, skip the syscall and squelch the events after epoll_wait().
*/
if (epoll_ctl(loop->backend_fd, op, w->fd, &e)) {
if (errno != EEXIST)
abort();
assert(op == EPOLL_CTL_ADD);
/* We've reactivated a file descriptor that's been watched before. */
if (epoll_ctl(loop->backend_fd, EPOLL_CTL_MOD, w->fd, &e))
abort();
}
w->events = w->pevents;
}
psigset = NULL;
if (loop->flags & UV_LOOP_BLOCK_SIGPROF) {
sigemptyset(&sigset);
sigaddset(&sigset, SIGPROF);
psigset = &sigset;
}
assert(timeout >= -1);
base = loop->time;
count = 48; /* Benchmarks suggest this gives the best throughput. */
real_timeout = timeout;
for (;;) {
/* See the comment for max_safe_timeout for an explanation of why
* this is necessary. Executive summary: kernel bug workaround.
*/
if (sizeof(int32_t) == sizeof(long) && timeout >= max_safe_timeout)
timeout = max_safe_timeout;
nfds = epoll_pwait(loop->backend_fd,
events,
ARRAY_SIZE(events),
timeout,
psigset);
/* Update loop->time unconditionally. It's tempting to skip the update when
* timeout == 0 (i.e. non-blocking poll) but there is no guarantee that the
* operating system didn't reschedule our process while in the syscall.
*/
SAVE_ERRNO(uv__update_time(loop));
if (nfds == 0) {
assert(timeout != -1);
if (timeout == 0)
return;
/* We may have been inside the system call for longer than |timeout|
* milliseconds so we need to update the timestamp to avoid drift.
*/
goto update_timeout;
}
if (nfds == -1) {
if (errno != EINTR)
abort();
if (timeout == -1)
continue;
if (timeout == 0)
return;
/* Interrupted by a signal. Update timeout and poll again. */
goto update_timeout;
}
have_signals = 0;
nevents = 0;
assert(loop->watchers != NULL);
loop->watchers[loop->nwatchers] = (void*) events;
loop->watchers[loop->nwatchers + 1] = (void*) (uintptr_t) nfds;
for (i = 0; i < nfds; i++) {
pe = events + i;
fd = pe->data.fd;
/* Skip invalidated events, see uv__platform_invalidate_fd */
if (fd == -1)
continue;
assert(fd >= 0);
assert((unsigned) fd < loop->nwatchers);
w = loop->watchers[fd];
if (w == NULL) {
/* File descriptor that we've stopped watching, disarm it.
*
* Ignore all errors because we may be racing with another thread
* when the file descriptor is closed.
*/
epoll_ctl(loop->backend_fd, EPOLL_CTL_DEL, fd, pe);
continue;
}
/* Give users only events they're interested in. Prevents spurious
* callbacks when previous callback invocation in this loop has stopped
* the current watcher. Also, filters out events that users has not
* requested us to watch.
*/
pe->events &= w->pevents | POLLERR | POLLHUP;
/* Work around an epoll quirk where it sometimes reports just the
* EPOLLERR or EPOLLHUP event. In order to force the event loop to
* move forward, we merge in the read/write events that the watcher
* is interested in; uv__read() and uv__write() will then deal with
* the error or hangup in the usual fashion.
*
* Note to self: happens when epoll reports EPOLLIN|EPOLLHUP, the user
* reads the available data, calls uv_read_stop(), then sometime later
* calls uv_read_start() again. By then, libuv has forgotten about the
* hangup and the kernel won't report EPOLLIN again because there's
* nothing left to read. If anything, libuv is to blame here. The
* current hack is just a quick bandaid; to properly fix it, libuv
* needs to remember the error/hangup event. We should get that for
* free when we switch over to edge-triggered I/O.
*/
if (pe->events == POLLERR || pe->events == POLLHUP)
pe->events |=
w->pevents & (POLLIN | POLLOUT | UV__POLLRDHUP | UV__POLLPRI);
if (pe->events != 0) {
/* Run signal watchers last. This also affects child process watchers
* because those are implemented in terms of signal watchers.
*/
if (w == &loop->signal_io_watcher)
have_signals = 1;
else
w->cb(loop, w, pe->events);
nevents++;
}
}
if (have_signals != 0)
loop->signal_io_watcher.cb(loop, &loop->signal_io_watcher, POLLIN);
loop->watchers[loop->nwatchers] = NULL;
loop->watchers[loop->nwatchers + 1] = NULL;
if (have_signals != 0)
return; /* Event loop should cycle now so don't poll again. */
if (nevents != 0) {
if (nfds == ARRAY_SIZE(events) && --count != 0) {
/* Poll for more events but don't block this time. */
timeout = 0;
continue;
}
return;
}
if (timeout == 0)
return;
if (timeout == -1)
continue;
update_timeout:
assert(timeout > 0);
real_timeout -= (loop->time - base);
if (real_timeout <= 0)
return;
timeout = real_timeout;
}
}
int listen()
{
if(m_flag_init == false)
{
return LISTEN_ERR_INIT;
}
int result = -1;
int event_count;
char err_string_buff[256];
int err_string_buff_size = 256;
sigset_t sigs;
sigfillset(&sigs);
m_flag_exit = false;
while(m_flag_exit == false)
{
event_count = epoll_pwait(m_epoll_fd, m_events, m_el_count, 1000, &sigs);
if(event_count == 0)
{
usleep(1000);
continue;
}
else if(event_count < 0)
{
strerror_r(errno, err_string_buff, err_string_buff_size);
std::fprintf(m_logfd, "%s\n", err_string_buff);
m_flag_exit = true;
continue;
}
for(int event_offset = 0; event_offset < m_el_count; event_offset++)
{
wsock *element = (wsock *) m_events[event_offset].data.ptr;
if(element->get_type() == wsock::SOCK_SERV)
{
if(element->is_v4())
{
struct sockaddr_in sock_info;
// get/assign a client socket
int sock_len = sizeof(sock_info);
int tmp_sock = accept(element->get_sock(),
(struct sockaddr *) &sock_info, (socklen_t *) &sock_len);
if(tmp_sock < 0)
{
strerror_r(errno, err_string_buff, err_string_buff_size);
std::fprintf(m_logfd, "%s\n", err_string_buff);
continue;
}
// Get a socket class and assign this socket descriptor & sockaddr
wsock *sock = m_sock_pool.front();
m_sock_pool.pop();
if(m_sock_pool.empty() == true)
{
close(tmp_sock);
std::fprintf(m_logfd, "empty slot is zero.\n");
continue;
}
sock->set_sock(tmp_sock, wsock::SOCK_CLNT);
sock->set_info_v4(sock_info);
// Add a epoll event
struct epoll_event ep_event;
std::memset(&ep_event, 0, sizeof(ep_event));
ep_event.events = EPOLLIN | EPOLLET;
ep_event.data.ptr = sock;
if(epoll_ctl(m_epoll_fd, EPOLL_CTL_ADD, tmp_sock, &ep_event) != 0)
{
close(tmp_sock);
m_sock_pool.push(sock);
strerror_r(errno, err_string_buff, err_string_buff_size);
std::fprintf(m_logfd, "%s\n", err_string_buff);
m_flag_exit = true;
continue;
}
// Push a socket class into current list
m_sock_list.push_back(sock);
// Notify to observer(s)
for(unsigned int i=0; i<m_observer.size(); i++)
{
m_observer[i]->connected(sock);
}
}
} // if(element->get_type() == wsock::SOCK_SERV)
else if(element->get_type() == wsock::SOCK_CLNT)
{
element->timestamp_update();
if(element->is_v4())
{
for(unsigned int i=0; i<m_observer.size(); i++)
{
m_observer[i]->ready_to_read(element);
}
}
if(element->is_ended() == true)
{
element->timestamp_end();
for(unsigned int i=0; i<m_observer.size(); i++)
{
m_observer[i]->disconnected(element);
}
element->close_sock();
}
}
}
}
return result;
}
static int epoll_process_events(void)
{
int i, nevents, timeout, tmp_err;
lts_socket_t *cs;
uintptr_t instance;
uint32_t revents;
#ifndef HAVE_FUNCTION_EPOLL_PWAIT
sigset_t orig_mask;
#endif
sigset_t sig_mask;
(void)sigfillset(&sig_mask);
(void)sigdelset(&sig_mask, SIGALRM); // 允许时钟信号
cs = lts_timer_heap_min(<s_timer_heap);
if (! dlist_empty(<s_post_list)) {
timeout = 0;
} else if (cs) {
timeout = (int)((cs->timeout - lts_current_time) * 100); // ms
} else {
timeout = -1;
}
#ifndef HAVE_FUNCTION_EPOLL_PWAIT
sigprocmask(SIG_SETMASK, &sig_mask, &orig_mask);
nevents = epoll_wait(epfd, buf_epevs, nbuf_epevs, timeout);
sigprocmask(SIG_SETMASK, &orig_mask, NULL);
#else
nevents = epoll_pwait(epfd, buf_epevs, nbuf_epevs, timeout, &sig_mask);
#endif
tmp_err = (-1 == nevents) ? errno : 0;
// 更新时间
if (lts_signals_mask & LTS_MASK_SIGALRM) {
lts_signals_mask &= ~LTS_MASK_SIGALRM;
lts_update_time();
}
// 错误处理
if (tmp_err) {
if (EINTR == tmp_err) { // 信号中断
return 0;
} else {
return -1;
}
}
// 事件处理
for (i = 0; i < nevents; ++i) {
cs = (lts_socket_t *)buf_epevs[i].data.ptr;
instance = ((uintptr_t)cs & (uintptr_t)1);
cs = (lts_socket_t *)((uintptr_t)cs & (uintptr_t)~1);
if ((-1 == cs->fd) || (instance != cs->instance)) {
// 过期事件
continue;
}
revents = buf_epevs[i].events;
if ((revents & (EPOLLERR | EPOLLHUP)
&& (revents & (EPOLLIN | EPOLLOUT)) == 0))
{
revents |= (EPOLLIN | EPOLLOUT);
}
if ((revents & EPOLLIN) && (cs->on_readable)) {
(*cs->on_readable)(cs);
}
if ((revents & EPOLLOUT) && (cs->on_writable)) {
(*cs->on_writable)(cs);
}
}
// 检查定时器堆
while ((cs = lts_timer_heap_min(<s_timer_heap))) {
if (cs->timeout > lts_current_time) {
break;
}
lts_timer_heap_del(<s_timer_heap, cs);
if (cs->on_timeoutable) {
(*cs->on_timeoutable)(cs);
}
}
return 0;
}
int
epoll_wait (int epfd, struct epoll_event *events, int maxevents, int timeout)
{
return epoll_pwait (epfd, events, maxevents, timeout, NULL);
}
int epoll_wait(int fd, struct epoll_event *ev, int cnt, int to)
{
return epoll_pwait(fd, ev, cnt, to, 0);
}
int CXSPAsyncSocket::SocketIOEpollWait(int timeout)
{
while(true)
{
pthread_t thrid = pthread_self();
EpollWaitObject *pEwobj=NULL;
if(this->m_ThreadId2Ewobj.Find(thrid, pEwobj) != 0)
{
pthread_exit((void *)"the map without the thread data");
break;
}
int &epollId = pEwobj->epollId;
vector<EPOLLEVENT> &vEvents = pEwobj->vEvents;
volatile int &maxEvent = pEwobj->maxEvent;
SIGSETT &sigset = pEwobj->sigset;
int ret = epoll_pwait(epollId, &vEvents[0], maxEvent, timeout, &sigset);
if(0 == ret) continue;//timeout
else if(0 > ret)
{
err_ret(GetLastError(ERROR_EPOLL_WAIT));
if(EINTR == errno || EAGAIN == errno)
continue;
pthread_exit((void *)"epoll pwait error");
return -1;
}
int &fds = ret;//监听套接子的个数
for(int i=0; i<fds && i<maxEvent; ++i)
{
struct sockaddr addr;
EPOLLEVENT &event = vEvents[i];
if(m_socket.sock_fd == event.data.fd)
{
int clifd = 0;
while( 0 < (clifd = AcceptSocket(&addr)) )
{
SetAsyncSocket(clifd);
SocketEpollAdd(clifd, EPOLLET | EPOLLIN | EPOLLET);
#ifndef Debug
printf("Add epoll event %d", clifd);
#endif
}
if(-1 == clifd && errno != EAGAIN &&
ECONNABORTED !=errno && EPROTO!=errno && EINTR != errno)
{
err_ret(GetLastError(ERROR_ACCEPT_SOCK));
}
continue;
}
else if(EPOLLIN & event.events)//read data
{
int &fd = event.data.fd;
string szRecvData;
szRecvData.resize(4);
int reLen = 0, offset=0;
while((reLen=read(fd, &szRecvData[offset], 4)) > 0)
{
offset += reLen;
szRecvData.resize(offset+1024);
}
if((reLen < 0 && errno==ECONNRESET)
|| (0 == reLen) )
{
close(fd);
SocketEpollDel(fd, event.events);
continue;
}
else if(reLen < 0) continue;
szRecvData.resize(offset);
this->m_deque.PushBack(szRecvData);
#ifndef Debug
printf("recv epoll data from %d", fd);
#endif
}
else if(EPOLLOUT & event.events )//write data
{
int &fd = event.data.fd;
string szSendData = (char *)event.data.ptr;
int datalen = szSendData.size(), sendlen=0;
while(0 < datalen)
{
sendlen=write(fd, szSendData.c_str(), datalen);
if(sendlen < 0)
{
if(-1 == sendlen && errno != EAGAIN)
{
err_ret(GetLastError(ERROR_SEND_SOCK));
}
break;
}
datalen -= sendlen;
}
}
}
}
return 0;
}
static void* pfpf_worker(void* _data)
{
int epoll_count = -1;
socklen_t restrict_length = 0;
int client_socket = -1;
struct sockaddr_in client;
struct epoll_event client_epoll_event;
struct epoll_event epoll_events[EPOLL_MAXEVENTS];
sigset_t epoll_sigmask_new;
sigset_t epoll_sigmask_old;
pfpf_worker_context_t* data = _data;
pfcq_zero(&client, sizeof(struct sockaddr_in));
pfcq_zero(&client_epoll_event, sizeof(struct epoll_event));
pfcq_zero(epoll_events, EPOLL_MAXEVENTS * sizeof(struct epoll_event));
pfcq_zero(&epoll_sigmask_new, sizeof(sigset_t));
pfcq_zero(&epoll_sigmask_old, sizeof(sigset_t));
pthread_setname_np(pthread_self(), "worker");
if (unlikely(!data))
goto out;
if (unlikely(sigemptyset(&epoll_sigmask_new) != 0))
panic("sigemptyset");
if (unlikely(sigaddset(&epoll_sigmask_new, SIGTERM) != 0))
panic("sigaddset");
if (unlikely(sigaddset(&epoll_sigmask_new, SIGINT) != 0))
panic("sigaddset");
if (unlikely(pthread_sigmask(SIG_BLOCK, &epoll_sigmask_new, &epoll_sigmask_old) != 0))
panic("pthread_sigmask");
for (;;)
{
epoll_count = epoll_pwait(data->epoll_fd, epoll_events, EPOLL_MAXEVENTS, -1, &epoll_sigmask_old);
if (unlikely(epoll_count == -1))
{
if (likely(errno == EINTR))
{
if (likely(data->parent_pool->should_exit))
{
debug("Worker #%d got interrupt signal, attempting to exit gracefully...\n", data->server_socket);
goto lfree;
} else
continue;
}
else
{
warning("epoll_pwait");
continue;
}
} else
{
for (int i = 0; i < epoll_count; i++)
{
int cfd = epoll_events[i].data.fd;
if (likely(epoll_events[i].events & EPOLLIN && !(epoll_events[i].events & EPOLLERR)))
{
if (unlikely(cfd == data->server_socket))
{
restrict_length = (socklen_t)sizeof(struct sockaddr_in);
pfcq_zero(&client, sizeof(struct sockaddr_in));
pfcq_zero(&client_epoll_event, sizeof(struct epoll_event));
client_socket = accept4(data->server_socket, (struct sockaddr*)&client, &restrict_length, SOCK_NONBLOCK);
if (unlikely(client_socket < 0))
{
if (likely(errno == EAGAIN || errno == EWOULDBLOCK))
continue;
else
{
warning("accept4");
continue;
}
}
pfpf_client_context_t* new_pfpf_client_context = pfcq_alloc(sizeof(pfpf_client_context_t));
new_pfpf_client_context->socket = client_socket;
data->initializer(&new_pfpf_client_context->data);
data->clients[client_socket] = new_pfpf_client_context;
data->clients_count++;
debug("Accepted client to #%d socket by #%d server\n", client_socket, data->server_socket);
debug("Total clients of server #%d: %d\n", data->server_socket, data->clients_count);
client_epoll_event.data.fd = client_socket;
client_epoll_event.events = EPOLLIN;
if (unlikely(epoll_ctl(data->epoll_fd, EPOLL_CTL_ADD, client_socket, &client_epoll_event) == -1))
panic("epoll_ctl");
} else
{
pfpf_client_context_t* current_pfpf_client_context = data->clients[cfd];
current_pfpf_client_context->bytes_read = read(current_pfpf_client_context->socket, current_pfpf_client_context->buffer, NET_CHUNK_SIZE);
if (likely(current_pfpf_client_context->bytes_read > 0))
{
data->handler(current_pfpf_client_context);
if (current_pfpf_client_context->should_close)
goto should_close;
} else
{
should_close:
debug("Saying good bye to socket #%d from server #%d\n", current_pfpf_client_context->socket, data->server_socket);
if (unlikely(epoll_ctl(data->epoll_fd, EPOLL_CTL_DEL, current_pfpf_client_context->socket, NULL) == -1))
panic("epoll_ctl");
if (unlikely(close(current_pfpf_client_context->socket) == -1))
warning("close");
if (likely(current_pfpf_client_context->data))
{
data->finalizer(current_pfpf_client_context->data);
pfcq_free(current_pfpf_client_context->data);
}
pfcq_free(current_pfpf_client_context);
data->clients[cfd] = NULL;
data->clients_count--;
}
}
} else
{
warning("epoll_wait");
continue;
}
}
}
}
lfree:
debug("Cleaning up #%d server...\n", data->server_socket);
for (int i = 0; i < data->clients_pool_size; i++)
{
if (unlikely(data->clients[i]))
{
debug("Detaching client #%d of server #%d...\n", data->clients[i]->socket, data->server_socket);
close(data->clients[i]->socket);
debug("Freeing client #%d data of server #%d...\n", data->clients[i]->socket, data->server_socket);
if (likely(data->clients[i]->data))
{
data->finalizer(data->clients[i]->data);
pfcq_free(data->clients[i]->data);
}
pfcq_free(data->clients[i]);
data->clients_count--;
}
}
debug("Destroying clients list of server #%d...\n", data->server_socket);
pfcq_free(data->clients);
close(data->server_socket);
close(data->epoll_fd);
debug("Server #%d cleaned up\n", data->server_socket);
out:
return NULL;
}
int server::listenAndserve() {
char * sfdstr = getenv("sfd");
char * epollfdstr = getenv("epollfd");
//return 0;
if(sfdstr){
sfd = atoi(sfdstr);
}
if(epollfdstr) {
//epollfd = atoi(epollfdstr);
}
if(sfd == 0) {
sfd = socket(AF_INET,SOCK_STREAM,0);
int flag = fcntl(sfd,F_GETFL,0);
int result = fcntl(sfd,F_SETFL,flag | O_NONBLOCK);
if(sfd < 0) {
printf("create socket error\n");
exit(-1);
//closeProc();
}
struct sockaddr_in addr;
bzero(&addr,sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = htonl(INADDR_ANY);
addr.sin_port = htons(10001);
printf("port is %d\n",addr.sin_port);
int on;
on = 1;
setsockopt(sfd,SOL_SOCKET,SO_REUSEADDR,&on, sizeof(on));
int bid = bind(sfd,(struct sockaddr*)&addr,sizeof(struct sockaddr));
if(bid < 0) {
printf("bind err\n");
printError(errno,__LINE__);
exit(-1);
//closeProc();
}
int lister = listen(sfd,10);
if(lister < 0){
printError(errno,__LINE__);
exit(-1);
//closeProc();
}else {
printf("listen sucess\n");
}
}
if(epollfd == 0) {
epollfd = epoll_create1(0);
printf("epofd = %d\n",epollfd);
}
{
Connection * sfdConnect = new Connection(sfd,NULL);
int add = EventProcess(epollfd,sfd,EPOLL_CTL_ADD,EPOLLET|EPOLLIN|EPOLLOUT,sfdConnect);
if(add < 0) {
printError(errno,__LINE__);
exit(-1);
//closeProc();
}
}
printf("------------------\n");
logger->Loginfo("sfd = %d sfd = %d",sfd,epollfd);
{
int x = pipe(loopSwitch);
if(x < 0) {
printf("create pipe err\n");
}
//loopSwitch = open("./loopSwitch",O_CREAT|O_RDWR,0644);
Connection * sfdConnect = new Connection(loopSwitch[0],NULL);
int add = EventProcess(epollfd,loopSwitch[0],EPOLL_CTL_ADD,EPOLLET|EPOLLIN|EPOLLOUT,sfdConnect);
// if(add < 0) {
// printf("add looperr errno %d\n",errno);
// }
if(add < 0) {
printError(errno,__LINE__);
exit(-1);
//closeProc();
}
}
int subfd = 0;
struct sockaddr_in remoteaddr;
socklen_t len;
struct epoll_event *eventArry = (struct epoll_event*)malloc(sizeof(struct epoll_event) * MAXEVENTS);
int num = 0,index = 0;
while(true) {
bzero(eventArry,sizeof(struct epoll_event) * MAXEVENTS);
struct sigaction act;
int sig = SIGSEGV;
sigemptyset(&act.sa_mask);
sigaddset(&act.sa_mask,SIGUSR1);
sigaddset(&act.sa_mask,SIGUSR2);
num = epoll_pwait(epollfd,eventArry,MAXEVENTS,-1,NULL);
//printf("wait success num = %d err %d pid = %d\n",num,errno,getpid());
int xx = errno;
if(num == -1) {
switch(xx) {
case EBADF:{
break;
}
case EFAULT:{
break;
}
case EINTR:{
break;
}
case EINVAL:{
break;
}
}
continue;
}
// EBADF epfd is not a valid file descriptor.
//
// EFAULT The memory area pointed to by events is not accessible with write permis‐
// sions.
//
// EINTR The call was interrupted by a signal handler before either (1) any of the
// requested events occurred or (2) the timeout expired; see signal(7).
//
// EINVAL epfd is not an epoll file descriptor, or maxevents is less than or equal to
// zero.
for(index = 0;index < num; index++) {
Connection * context = (Connection*)eventArry[index].data.ptr;
int aFd = context->fd;
int subfd = -1;
if(aFd == sfd) {
if(accepton) {
while((subfd = accept(sfd,(struct sockaddr*)&remoteaddr,&len)) > 0){
Connection * connection = new Connection(subfd,&remoteaddr);
//printf("172 addr %x\n",connection);
EventProcess(epollfd,subfd,EPOLL_CTL_ADD,EPOLLET|EPOLLIN ,connection);
//handleConnect(connection);
connection->readHandler = &readHandler;
}
}
}else if( aFd == loopSwitch[0] ||aFd == loopSwitch[1]){
printf("pipe closed\n");
return 0;
} else {
Connection * connection = (Connection*)eventArry[index].data.ptr;
//printf("179 addr %x\n",connection);
if(eventArry[index].events & EPOLLIN) {
if(connection->readHandler != NULL){
int x = connection->readHandler(connection);
if(x == 0) {
EventProcess(epollfd,aFd,EPOLL_CTL_DEL,0,NULL);
connection->Close();
delete(connection);
}
}
}
}
}
// subfd = accept(sfd,(struct sockaddr*)&remoteaddr,&len);
//printf("remoate port %d\n",remoteaddr.sin_port);
//close(subfd);
}
}
