C++ (Cpp) CAAcceptConnection Examples

Example #1

File: catcpserver.c Project: rajesh89s/iotivity

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);
                }
            }
        }
    }
}

Example #2

File: catcpserver.c Project: nakyasm/iotivity

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);
                }
            }
        }
    }
}