int
main(int argc , char **argv)
{
int fd , len;
fd = open(argv[1], O_RDWR);
if (fd < 0) {
perror("open file failed :");
return -1;
}
SetNonBlock(fd, true);
char buf[2048];
len = read(fd, buf, sizeof(buf) );
if (len > 0) {
buf[len] = '\0';
printf("read %d bytes, and data is :%s\n",len, buf);
} else if (len < 0)
perror("read file failed :");
close(fd);
return 0;
}
/* create non blocking listener sprocket on port, null on failure */
struct sprock_t *ServSprockMake(unsigned short port) {
int sock;
struct sockaddr_in servaddr;
struct sprock_t *sprocket;
if ((sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0) return NULL;
memset(&servaddr, 0, sizeof(servaddr));
servaddr.sin_family = AF_INET;
servaddr.sin_addr.s_addr = htonl(INADDR_ANY);
servaddr.sin_port = htons(port);
if (bind(sock, (struct sockaddr *)&servaddr,
sizeof(servaddr)) < 0) return NULL;
if (listen(sock, BACKLOG) < 0) return NULL;
if (SetNonBlock(sock) < 0) return NULL;
if ((sprocket = (struct sprock_t *)
malloc(sizeof(struct sprock_t))) == NULL) return NULL;
memset(sprocket, 0, sizeof(*sprocket));
sprocket->fd = sock;
sprocket->func = SERV;
sprocket->state = INIT;
sprocket->lastio = -1;
return sprocket;
}
int IOHelper::Accept(int listen_fd, char* ipbuf, int* port) {
sockaddr_in addr;
socklen_t len_addr = sizeof(addr);
int new_fd;
while (true) {
new_fd = accept(listen_fd, RCAST<sockaddr*>(&addr), &len_addr);
if (-1==new_fd) {
if (EINTR==errno) continue;
return -1;
}
break;
}
bool ret = SetNonBlock(new_fd);
if (!ret) return -2;
if (NULL!=ipbuf) {
inet_ntop(AF_INET, &addr.sin_addr, ipbuf, INET_ADDRSTRLEN);
}
if (NULL!=port) {
*port = ntohs(addr.sin_port);
}
return new_fd;
}
int clsAsyncPipeMng::Init(clsConfigure *poConf)
{
int iRet;
m_tIdleIdxList.clear();
memset(m_aiGroupCnt, 0, sizeof(m_aiGroupCnt));
for (uint32_t i = 0; i < MAX_ASYNC_PIPE_NUM; ++i)
{
iRet = MakeNonBlockPipe(m_aaAsyncPipe[i][0],
m_aaAsyncPipe[i][1]);
AssertEqual(iRet, 0);
#if 0
iRet = SetNonBlock(m_aaAsyncPipe[i][0], false);
AssertEqual(iRet, 0);
#endif
m_tIdleIdxList.push_back(i);
m_aiEntityIDMap[i] = INVALID_ENTITY_ID;
}
m_poCertain = clsCertainWrapper::GetInstance();
m_iMaxGroupLimit = m_poCertain->GetCertainUser()->GetControlGroupLimit();
CertainLogZero("MAX_ASYNC_PIPE_NUM %u m_iMaxGroupLimit %u",
MAX_ASYNC_PIPE_NUM, m_iMaxGroupLimit);
return 0;
}
CLS_TCPConnect::CLS_TCPConnect(int iSocket, const char *strIP, int iPort)
:CLS_Socket(iSocket, SS_CONNECT)
{
strcpy(m_strIP, strIP);
m_iPort=iPort;
SetSocketProp();
SetNonBlock();
}
CLS_TCPConnect::CLS_TCPConnect()
:CLS_Socket()
{
m_strIP[0]=0;
m_iPort=-1;
SetSocketProp();
SetNonBlock();
}
void CLS_TCPConnect::SetConnectProp(int iSocket, const char *strIP, int iPort)
{
if(m_iSocket>0)
CloseSocket();
m_iSocket=iSocket;
m_iStatus=SS_CONNECT;
strcpy(m_strIP, strIP);
m_iPort=iPort;
SetSocketProp();
SetNonBlock();
}
bool NHandsFree::
InetConnect(int port)
{
int sock;
sockaddr_in sa;
assert(m_hfpd_state == NHS_HFPD_DISCONNECTED);
assert(m_sock < 0);
sock = socket(PF_INET, SOCK_STREAM, 0);
if (sock < 0) {
ndebug::out(ndebug::LOG_ERR, "NHandsFree: %s:%s(%d) - "
"Error creating socket(%d) - %s",
__FILE__, __FUNCTION__, __LINE__,
errno, strerror(errno));
return false;
}
sa.sin_family = AF_INET;
sa.sin_port = htons(port);
sa.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
if (!SetNonBlock(sock, true)) {
ndebug::out(ndebug::LOG_ERR, "NHandsFree: %s:%s(%d) - "
"Error setting nonblock on socket(%d) - %s",
__FILE__, __FUNCTION__, __LINE__,
errno, strerror(errno));
close(sock);
return false;
}
if (connect(sock, (struct sockaddr *) &sa, sizeof(sa)) < 0) {
if (errno == EINPROGRESS) {
m_sock = sock;
m_hfpd_state = NHS_HFPD_CONNECTING;
return true;
}
ndebug::out(ndebug::LOG_ERR, "NHandsFree: %s:%s(%d) - "
"Error connecting socket(%d) - %s",
__FILE__, __FUNCTION__, __LINE__,
errno, strerror(errno));
close(sock);
return false;
}
m_hfpd_state = NHS_HFPD_CONNECTED;
m_sock = sock;
Connected();
return true;
}
bool NHandsFree::
UnixConnect(const char *sockname)
{
int sock;
sockaddr_un sa;
assert(m_hfpd_state == NHS_HFPD_DISCONNECTED);
assert(m_sock < 0);
sock = socket(PF_UNIX, SOCK_STREAM, 0);
if (sock < 0) {
ndebug::out(ndebug::LOG_ERR, "NHandsFree: %s:%s(%d) - "
"Error creating socket(%d) - %s",
__FILE__, __FUNCTION__, __LINE__,
errno, strerror(errno));
return false;
}
sa.sun_family = AF_UNIX;
strncpy(sa.sun_path, sockname, sizeof(sa.sun_path));
if (!SetNonBlock(sock, true)) {
ndebug::out(ndebug::LOG_ERR, "NHandsFree: %s:%s(%d) - "
"Error setting nonblock on socket(%d) - %s",
__FILE__, __FUNCTION__, __LINE__,
errno, strerror(errno));
close(sock);
return false;
}
if (connect(sock, (struct sockaddr *) &sa, sizeof(sa)) < 0) {
if (errno == EINPROGRESS) {
m_sock = sock;
m_hfpd_state = NHS_HFPD_CONNECTING;
return true;
}
ndebug::out(ndebug::LOG_ERR, "NHandsFree: %s:%s(%d) - "
"Error connecting socket(%d) - %s",
__FILE__, __FUNCTION__, __LINE__,
errno, strerror(errno));
close(sock);
return false;
}
m_hfpd_state = NHS_HFPD_CONNECTED;
m_sock = sock;
Connected();
return true;
}
inline SOCKET mksock()
{
/*Initialize RAW socket UDP level*/
SOCKET sock = socket(AF_INET, SOCK_RAW, IPPROTO_UDP);
/*setup some more settings for polling*/
if(!IS_VALID_SOCK(sock))
error(1, 0, "Error socket initialization");
if(SetNonBlock(sock) < 0)
error(1, errno, "Error switching socket to non-block mode.");
if(SetReusable(sock) < 0)
error(1, errno, "Error making socket reusable");
return sock;
}
void EpollListenStrategy::PostInput() {
if (!m_canInput) {
return;
}
Host peerHost;
auto sockAddr = peerHost.SockAddr();
auto sockAddrLen = peerHost.SockAddrLen();
const auto& listenSockId = m_listenSocket.GetSockId();
while (true) {
auto sockId = accept(listenSockId, sockAddr, &sockAddrLen);
if (sockId == INVALID_SOCKID) {
const auto error = SAGetLastError();
if (IsInterrupted(error)) {
continue;
}
if (IsWouldBlock(error)) {
m_canInput = false;
break;
}
switch(error) {
case EMFILE:
case ENFILE:
case ENOBUFS:
case ENOMEM:
case EPERM:
MZ_ASSERT_TRUE(false);
break;
default: break;
};
NS_SHARE::Log(MZ_LOG_DEBUG, "Socket Error: socket close, error[%d]. [%s:%d]\n", error, __FILE__, __LINE__);
m_listenSocket.Close();
m_listenSocket.OnError(error);
break;
}
SetNonBlock(sockId);
if (!m_listenSocket.OnAccepted(sockId, peerHost)) {
DestroySockId(sockId);
}
}
}
/* non blocking return accepted client given serversprock, NULL on failure */
struct sprock_t *ClntSprockAccept(struct sprock_t *parentsprock) {
int clntsock;
struct sockaddr_in clntaddr;
size_t clntlen;
struct sprock_t *sprocket;
clntlen = sizeof(clntaddr);
if ((clntsock = accept(parentsprock->fd,
(struct sockaddr *)&clntaddr, &clntlen)) < 0) return NULL;
if (SetNonBlock(clntsock) < 0) return NULL;
if ((sprocket = (struct sprock_t *)
malloc(sizeof(struct sprock_t))) == NULL) return NULL;
memset(sprocket, 0, sizeof(struct sprock_t));
sprocket->ipaddr = inet_ntoa(clntaddr.sin_addr);
sprocket->fd = clntsock;
sprocket->func = CLNT;
sprocket->state = INIT;
sprocket->lastio = time(NULL);
parentsprock->child = sprocket;
sprocket->parent = parentsprock;
return sprocket;
}
int main()
{
struct epoll_event ev, events[MAX_EVENTS];
struct sockaddr_in client;
struct sockaddr_in server;
// const char* localhost = "127.0.0.1";
const char* localhost = "0.0.0.0";
int tcpfd, udpfd, nfds, confd;
int servPort = 8888;
socklen_t addrLen = sizeof(struct sockaddr);
char line[MAX_LINE];
ssize_t n;
MYSQL connection;
pthread_t thread;
pthread_attr_t attr;
//create socket
tcpfd = CreateSocket(TCP);
//translate ip & port into sockaddr_in format
Ip2SocketAddr(&server, localhost, servPort);
//bind ip & port to socket
BindSocketAddr(&server, tcpfd);
//begin to listen
listen(tcpfd, LISTEN_NUM);
//create epoll
epfd = CreateEpoll(MAX_EVENTS);
//set fd nonblocking mode
SetNonBlock(tcpfd);
//register fd event to epoll
EpollAdd(epfd, tcpfd, EPOLLIN|EPOLLET);
//create thread pool
InitPool(MAX_POOL_SIZE);
//init a connection to MySql
conn = mysql_init(NULL);
if(mysql_real_connect(conn, "localhost", "root", "", "test_server", 0, NULL, 0) == NULL){
perror("no database connection...\n");
exit(1);
}
while(1){
if((nfds = EpollWait(epfd, events, 20, 500)) == -1){
perror("epoll_wait\n");
exit(-1);
}
for(int i = 0; i < nfds; i++)
{
if(events[i].data.fd == tcpfd)
{
confd = accept(tcpfd, (struct sockaddr *)&client, &addrLen);
if(confd < 0)
{
perror("accept error \n");
exit(1);
}
else
printf("connect %s:%d socket :%d\n", inet_ntoa(client.sin_addr), ntohs(client.sin_port), confd);
// SetNonBlock(confd);
EpollAdd(epfd, confd, EPOLLIN|EPOLLET);
if(IsRecvIn(&events[i]))
AddTask2Pool(MessageHandlerThread, (void *)&confd);
}
}//for(0 to nfds)
}
}