C++ (Cpp) RTWinSocketPair Exemples

Exemple #1

Fichier : proxy_pollmgr.c Projet : MadHacker217/VirtualBox-OSE

int
pollmgr_init(void)
{
    struct pollfd *newfds;
    struct pollmgr_handler **newhdls;
    nfds_t newcap;
    int status;
    nfds_t i;

    pollmgr.fds = NULL;
    pollmgr.handlers = NULL;
    pollmgr.capacity = 0;
    pollmgr.nfds = 0;

    for (i = 0; i < POLLMGR_SLOT_STATIC_COUNT; ++i) {
        pollmgr.chan[i][POLLMGR_CHFD_RD] = -1;
        pollmgr.chan[i][POLLMGR_CHFD_WR] = -1;
    }

    for (i = 0; i < POLLMGR_SLOT_STATIC_COUNT; ++i) {
#ifndef RT_OS_WINDOWS
        status = socketpair(PF_LOCAL, SOCK_DGRAM, 0, pollmgr.chan[i]);
        if (status < 0) {
            perror("socketpair");
            goto cleanup_close;
        }
#else
        status = RTWinSocketPair(PF_INET, SOCK_DGRAM, 0, pollmgr.chan[i]);
        AssertRCReturn(status, -1);

        if (RT_FAILURE(status)) {
            perror("socketpair");
            goto cleanup_close;
        }
#endif
    }


    newcap = 16;                /* XXX: magic */
    LWIP_ASSERT1(newcap >= POLLMGR_SLOT_STATIC_COUNT);

    newfds = (struct pollfd *)
        malloc(newcap * sizeof(*pollmgr.fds));
    if (newfds == NULL) {
        perror("calloc");
        goto cleanup_close;
    }

    newhdls = (struct pollmgr_handler **)
        malloc(newcap * sizeof(*pollmgr.handlers));
    if (newhdls == NULL) {
        perror("malloc");
        free(newfds);
        goto cleanup_close;
    }

    pollmgr.capacity = newcap;
    pollmgr.fds = newfds;
    pollmgr.handlers = newhdls;

    pollmgr.nfds = POLLMGR_SLOT_STATIC_COUNT;

    for (i = 0; i < pollmgr.capacity; ++i) {
        pollmgr.fds[i].fd = -1;
        pollmgr.fds[i].events = 0;
        pollmgr.fds[i].revents = 0;
    }

    return 0;

  cleanup_close:
    for (i = 0; i < POLLMGR_SLOT_STATIC_COUNT; ++i) {
        SOCKET *chan = pollmgr.chan[i];
        if (chan[POLLMGR_CHFD_RD] >= 0) {
            closesocket(chan[POLLMGR_CHFD_RD]);
            closesocket(chan[POLLMGR_CHFD_WR]);
        }
    }

    return -1;
}

Exemple #2

Fichier : proxy_pollmgr.c Projet : svn2github/virtualbox

int
pollmgr_init(void)
{
    struct pollfd *newfds;
    struct pollmgr_handler **newhdls;
    nfds_t newcap;
    int status;
    nfds_t i;

    pollmgr.fds = NULL;
    pollmgr.handlers = NULL;
    pollmgr.capacity = 0;
    pollmgr.nfds = 0;

    for (i = 0; i < POLLMGR_SLOT_STATIC_COUNT; ++i) {
        pollmgr.chan[i][POLLMGR_CHFD_RD] = INVALID_SOCKET;
        pollmgr.chan[i][POLLMGR_CHFD_WR] = INVALID_SOCKET;
    }

    for (i = 0; i < POLLMGR_SLOT_STATIC_COUNT; ++i) {
#ifndef RT_OS_WINDOWS
        status = socketpair(PF_LOCAL, SOCK_DGRAM, 0, pollmgr.chan[i]);
        if (status < 0) {
            DPRINTF(("socketpair: %R[sockerr]\n", SOCKERRNO()));
            goto cleanup_close;
        }
#else
        status = RTWinSocketPair(PF_INET, SOCK_DGRAM, 0, pollmgr.chan[i]);
        if (RT_FAILURE(status)) {
            goto cleanup_close;
        }
#endif
    }


    newcap = 16;                /* XXX: magic */
    LWIP_ASSERT1(newcap >= POLLMGR_SLOT_STATIC_COUNT);

    newfds = (struct pollfd *)
        malloc(newcap * sizeof(*pollmgr.fds));
    if (newfds == NULL) {
        DPRINTF(("%s: Failed to allocate fds array\n", __func__));
        goto cleanup_close;
    }

    newhdls = (struct pollmgr_handler **)
        malloc(newcap * sizeof(*pollmgr.handlers));
    if (newhdls == NULL) {
        DPRINTF(("%s: Failed to allocate handlers array\n", __func__));
        free(newfds);
        goto cleanup_close;
    }

    pollmgr.capacity = newcap;
    pollmgr.fds = newfds;
    pollmgr.handlers = newhdls;

    pollmgr.nfds = POLLMGR_SLOT_STATIC_COUNT;

    for (i = 0; i < pollmgr.capacity; ++i) {
        pollmgr.fds[i].fd = INVALID_SOCKET;
        pollmgr.fds[i].events = 0;
        pollmgr.fds[i].revents = 0;
    }

    return 0;

  cleanup_close:
    for (i = 0; i < POLLMGR_SLOT_STATIC_COUNT; ++i) {
        SOCKET *chan = pollmgr.chan[i];
        if (chan[POLLMGR_CHFD_RD] != INVALID_SOCKET) {
            closesocket(chan[POLLMGR_CHFD_RD]);
            closesocket(chan[POLLMGR_CHFD_WR]);
        }
    }

    return -1;
}