Epoll::Epoll(int p_size)
: m_size(p_size), m_epollFd(::epoll_create(m_size))
{
if (m_epollFd < 0)
{
throw std::runtime_error("Epoll create failed");
}
int pipeResult = pipe(m_selfStopPipes);
if (pipeResult < 0)
{
::close(m_epollFd);
throw std::runtime_error("Pipe create failed");
}
int readPipeFlags = fcntl(m_selfStopPipes[0], F_GETFL, 0);
fcntl(m_selfStopPipes[1], F_SETFL, readPipeFlags | O_NONBLOCK);
EventTypes eventTypesReadPipe;
eventTypesReadPipe.insert(Epoll::EventType::In);
try
{
epollCtl(EPOLL_CTL_ADD, m_selfStopPipes[0], eventTypesReadPipe);
}
catch (const std::runtime_error& e)
{
::close(m_selfStopPipes[0]);
::close(m_selfStopPipes[1]);
::close(m_epollFd);
throw e;
}
}
static jint netty_epoll_native_epollCtlMod0(JNIEnv* env, jclass clazz, jint efd, jint fd, jint flags) {
int res = epollCtl(env, efd, EPOLL_CTL_MOD, fd, flags);
if (res < 0) {
return -errno;
}
return res;
}
JNIEXPORT jint JNICALL Java_io_netty_channel_epoll_Native_epollCtlMod0(JNIEnv* env, jclass clazz, jint efd, jint fd, jint flags) {
int res = epollCtl(env, efd, EPOLL_CTL_MOD, fd, flags);
if (res < 0) {
return -errno;
}
return res;
}
void Epoll::modify(Socket::Ptr p_socket, const EventTypes& p_ets) const
{
int option = EPOLL_CTL_MOD;
epollCtl(option, p_socket->getDescriptor(), p_ets);
}
JNIEXPORT void JNICALL Java_io_netty_channel_epoll_Native_epollCtlMod(JNIEnv * env, jclass clazz, jint efd, jint fd, jint flags, jint id) {
if (epollCtl(env, efd, EPOLL_CTL_MOD, fd, flags, id) < 0) {
int err = errno;
throwRuntimeException(env, exceptionMessage("Error during calling epoll_ctl(...): ", err));
}
}