src/server/poll.c

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#define POLLFD(ptr)     ((struct pollfd *)(ptr))

static
inline
int
sortEvents(const void * a, const void * b)
{
        return POLLFD(a)->events > POLLFD(b)->events ?
                -1 : POLLFD(a)->events < POLLFD(b)->events ?
                1 : 0;
}

static
inline
int
sortRevents(const void * a, const void * b)
{
        return POLLFD(a)->revents > POLLFD(b)->revents ?
                -1 : POLLFD(a)->revents < POLLFD(b)->revents ?
                1 : 0;
}

static
int
serverPoll(Server this) {
        int events;

        qsort(this->fds, this->nfds, sizeof(struct pollfd), sortEvents);
        this->nfds -= this->ndel;
        this->ndel  = 0;

        /*
         * wait for handles to become ready
         */
        if (-1 == (events = poll(this->fds, this->nfds, -1))) {
                switch (errno) {
                        default:
                        case EBADF:
                        case EINVAL:
                        case ENOMEM:
                                doShutdown = 1;
                                /* Fallthrough */

                        case EINTR:
                                loggerLog(this->logger, LOGGER_CRIT,
                                                "poll systemcall failed: [%s] - service terminated",
                                                strerror(errno));
                                //exit(EXIT_FAILURE); /* @TODO do real shutdown here */
                }
        }

        qsort(this->fds, this->nfds, sizeof(struct pollfd), sortRevents);

        return events;
}

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