static void CASelectReturned(fd_set *readFds, int ret)
{
(void)ret;
int fd = -1;
CATransportFlags_t flags = CA_DEFAULT_FLAGS;
while (!caglobals.ip.terminate)
{
ISSET(u6, readFds, CA_IPV6)
else ISSET(u6s, readFds, CA_IPV6 | CA_SECURE)
else ISSET(u4, readFds, CA_IPV4)
else ISSET(u4s, readFds, CA_IPV4 | CA_SECURE)
else ISSET(m6, readFds, CA_MULTICAST | CA_IPV6)
else ISSET(m6s, readFds, CA_MULTICAST | CA_IPV6 | CA_SECURE)
else ISSET(m4, readFds, CA_MULTICAST | CA_IPV4)
else ISSET(m4s, readFds, CA_MULTICAST | CA_IPV4 | CA_SECURE)
else if (FD_ISSET(caglobals.ip.netlinkFd, readFds))
{
CAHandleNetlink();
break;
}
else
{
CAInterface_t *ifchanged = CAFindInterfaceChange();
if (ifchanged)
{
CAProcessNewInterface(ifchanged);
}
break;
}
(void)CAReceiveMessage(fd, flags);
FD_CLR(fd, readFds);
}
}
static void CASelectReturned(fd_set *readFds, int ret)
{
(void)ret;
int fd = -1;
CATransportFlags_t flags = CA_DEFAULT_FLAGS;
while (!caglobals.ip.terminate)
{
ISSET(u6, readFds, CA_IPV6)
else ISSET(u6s, readFds, CA_IPV6 | CA_SECURE)
else ISSET(u4, readFds, CA_IPV4)
else ISSET(u4s, readFds, CA_IPV4 | CA_SECURE)
else ISSET(m6, readFds, CA_MULTICAST | CA_IPV6)
else ISSET(m6s, readFds, CA_MULTICAST | CA_IPV6 | CA_SECURE)
else ISSET(m4, readFds, CA_MULTICAST | CA_IPV4)
else ISSET(m4s, readFds, CA_MULTICAST | CA_IPV4 | CA_SECURE)
else if (FD_ISSET(caglobals.ip.netlinkFd, readFds))
{
CAHandleNetlink();
break;
}
else if (FD_ISSET(caglobals.ip.shutdownFds[0], readFds))
{
char buf[10] = {0};
ssize_t len = read(caglobals.ip.shutdownFds[0], buf, sizeof (buf));
if (-1 == len)
{
continue;
}
CAInterface_t *ifchanged = CAFindInterfaceChange();
if (ifchanged)
{
CAProcessNewInterface(ifchanged);
OICFree(ifchanged);
}
break;
}
else
{
break;
}
(void)CAReceiveMessage(fd, flags);
FD_CLR(fd, readFds);
}
}
static void CAReceiveHandler(void *data)
{
(void)data;
OIC_LOG(DEBUG, TAG, "IN - CAReceiveHandler");
while (!caglobals.tcp.terminate)
{
CAReceiveMessage();
}
ca_mutex_lock(g_mutexObjectList);
// notify the thread
g_threadCounts--;
if (!g_threadCounts)
{
ca_cond_signal(g_condObjectList);
}
ca_mutex_unlock(g_mutexObjectList);
OIC_LOG(DEBUG, TAG, "OUT - CAReceiveHandler");
}
static void CAFindReadyMessage()
{
fd_set readFds;
struct timeval timeout = { .tv_sec = caglobals.tcp.selectTimeout };
FD_ZERO(&readFds);
if (-1 != g_acceptServerFD)
{
FD_SET(g_acceptServerFD, &readFds);
}
if (-1 != caglobals.tcp.shutdownFds[0])
{
FD_SET(caglobals.tcp.shutdownFds[0], &readFds);
}
if (-1 != caglobals.tcp.connectionFds[0])
{
FD_SET(caglobals.tcp.connectionFds[0], &readFds);
}
uint32_t length = u_arraylist_length(caglobals.tcp.svrlist);
for (size_t i = 0; i < length; i++)
{
CATCPSessionInfo_t *svritem =
(CATCPSessionInfo_t *) u_arraylist_get(caglobals.tcp.svrlist, i);
if (svritem && 0 <= svritem->fd)
{
FD_SET(svritem->fd, &readFds);
}
}
int ret = select(caglobals.tcp.maxfd + 1, &readFds, NULL, NULL, &timeout);
if (caglobals.tcp.terminate)
{
OIC_LOG_V(DEBUG, TAG, "Packet receiver Stop request received.");
return;
}
if (0 >= ret)
{
if (0 > ret)
{
OIC_LOG_V(FATAL, TAG, "select error %s", strerror(errno));
}
return;
}
CASelectReturned(&readFds, ret);
}
static void CASelectReturned(fd_set *readFds, int ret)
{
(void)ret;
if (g_acceptServerFD != -1 && FD_ISSET(g_acceptServerFD, readFds))
{
CAAcceptConnection();
return;
}
else if (-1 != caglobals.tcp.connectionFds[0] &&
FD_ISSET(caglobals.tcp.connectionFds[0], readFds))
{
// new connection was created from remote device.
// exit the function to update read file descriptor.
char buf[MAX_ADDR_STR_SIZE_CA] = {0};
ssize_t len = read(caglobals.tcp.connectionFds[0], buf, sizeof (buf));
if (-1 == len)
{
return;
}
OIC_LOG_V(DEBUG, TAG, "Received new connection event with [%s]", buf);
FD_CLR(caglobals.tcp.connectionFds[0], readFds);
return;
}
else
{
uint32_t length = u_arraylist_length(caglobals.tcp.svrlist);
for (size_t i = 0; i < length; i++)
{
CATCPSessionInfo_t *svritem =
(CATCPSessionInfo_t *) u_arraylist_get(caglobals.tcp.svrlist, i);
if (svritem && svritem->fd >= 0)
{
if (FD_ISSET(svritem->fd, readFds))
{
CAReceiveMessage(svritem->fd);
FD_CLR(svritem->fd, readFds);
}
}
}
}
}
static void CAFindReadyMessage()
{
fd_set readFds;
struct timeval timeout = { .tv_sec = caglobals.tcp.selectTimeout };
FD_ZERO(&readFds);
if (-1 != g_acceptServerFD)
{
FD_SET(g_acceptServerFD, &readFds);
}
if (-1 != caglobals.tcp.shutdownFds[0])
{
FD_SET(caglobals.tcp.shutdownFds[0], &readFds);
}
uint32_t length = u_arraylist_length(caglobals.tcp.svrlist);
for (size_t i = 0; i < length; i++)
{
CATCPSessionInfo_t *svritem =
(CATCPSessionInfo_t *) u_arraylist_get(caglobals.tcp.svrlist, i);
if (svritem && 0 <= svritem->fd)
{
FD_SET(svritem->fd, &readFds);
}
}
int ret = select(caglobals.tcp.maxfd + 1, &readFds, NULL, NULL, &timeout);
if (caglobals.tcp.terminate)
{
OIC_LOG_V(DEBUG, TAG, "Packet receiver Stop request received.");
return;
}
if (0 >= ret)
{
if (0 > ret)
{
OIC_LOG_V(FATAL, TAG, "select error %s", strerror(errno));
}
return;
}
CASelectReturned(&readFds, ret);
}
static void CASelectReturned(fd_set *readFds, int ret)
{
(void)ret;
if (g_acceptServerFD != -1 && FD_ISSET(g_acceptServerFD, readFds))
{
CAAcceptConnection();
return;
}
else
{
uint32_t length = u_arraylist_length(caglobals.tcp.svrlist);
for (size_t i = 0; i < length; i++)
{
CATCPSessionInfo_t *svritem =
(CATCPSessionInfo_t *) u_arraylist_get(caglobals.tcp.svrlist, i);
if (svritem && svritem->fd >= 0)
{
if (FD_ISSET(svritem->fd, readFds))
{
CAReceiveMessage(svritem->fd);
FD_CLR(svritem->fd, readFds);
}
}
}
}
}
