static void *mca_btl_scif_connect_accept (void *arg)
{
struct scif_pollepd pollepd = {.epd = mca_btl_scif_module.scif_fd, .events = SCIF_POLLIN, .revents = 0};
int rc;
BTL_VERBOSE(("btl/scif: listening for new connections"));
/* listen for connections */
while (1) {
pollepd.revents = 0;
rc = scif_poll (&pollepd, 1, -1);
if (1 == rc) {
if (SCIF_POLLIN != pollepd.revents) {
break;
}
rc = mca_btl_scif_ep_connect_start_passive ();
if (OMPI_SUCCESS != rc) {
BTL_VERBOSE(("btl/scif: error accepting scif connection"));
continue;
}
} else {
break;
}
}
BTL_VERBOSE(("btl/scif: stopped listening for new connections"));
return NULL;
}
int mca_btl_scif_del_procs (struct mca_btl_base_module_t *btl,
size_t nprocs, struct ompi_proc_t **procs,
struct mca_btl_base_endpoint_t **peers) {
/* do nothing for now */
return OMPI_SUCCESS;
}
static int scif_dereg_mem (void *reg_data, mca_mpool_base_registration_t *reg)
{
mca_btl_scif_reg_t *scif_reg = (mca_btl_scif_reg_t *)reg;
size_t size = (size_t)((uintptr_t) reg->bound - (uintptr_t) reg->base);
int i;
/* register the fragment with all connected endpoints */
for (i = 0 ; i < (int) mca_btl_scif_module.endpoint_count ; ++i) {
if ((off_t)-1 != scif_reg->registrations[i] &&
MCA_BTL_SCIF_EP_STATE_CONNECTED == mca_btl_scif_module.endpoints[i].state) {
(void) scif_unregister(mca_btl_scif_module.endpoints[i].scif_epd,
scif_reg->registrations[i], size);
}
}
free (scif_reg->registrations);
return OMPI_SUCCESS;
}
static void *mca_btl_scif_connect_accept (void *arg)
{
struct scif_pollepd pollepd = {.epd = mca_btl_scif_module.scif_fd, .events = SCIF_POLLIN, .revents = 0};
int rc;
BTL_VERBOSE(("btl/scif: listening for new connections"));
/* listen for connections */
while (1) {
pollepd.revents = 0;
rc = scif_poll (&pollepd, 1, -1);
if (1 == rc) {
if (SCIF_POLLIN != pollepd.revents) {
break;
}
if (mca_btl_scif_module.exiting) {
/* accept the connection so scif_connect() does not timeout */
struct scif_portID peer;
scif_epd_t newepd;
scif_accept(mca_btl_scif_module.scif_fd, &peer, &newepd, SCIF_ACCEPT_SYNC);
scif_close(newepd);
break;
}
rc = mca_btl_scif_ep_connect_start_passive ();
if (OPAL_SUCCESS != rc) {
BTL_VERBOSE(("btl/scif: error accepting scif connection"));
continue;
}
} else {
break;
}
}
BTL_VERBOSE(("btl/scif: stopped listening for new connections"));
return NULL;
}
int mca_btl_scif_del_procs (struct mca_btl_base_module_t *btl,
size_t nprocs, struct opal_proc_t **procs,
struct mca_btl_base_endpoint_t **peers) {
/* do nothing for now */
return OPAL_SUCCESS;
}
static int scif_dereg_mem (void *reg_data, mca_rcache_base_registration_t *reg)
{
mca_btl_scif_reg_t *scif_reg = (mca_btl_scif_reg_t *)reg;
size_t size = (size_t)((uintptr_t) reg->bound - (uintptr_t) reg->base);
int i;
/* register the fragment with all connected endpoints */
for (i = 0 ; i < (int) mca_btl_scif_module.endpoint_count ; ++i) {
if ((off_t)-1 != scif_reg->handles[i].btl_handle.scif_offset &&
MCA_BTL_SCIF_EP_STATE_CONNECTED == mca_btl_scif_module.endpoints[i].state) {
(void) scif_unregister(mca_btl_scif_module.endpoints[i].scif_epd,
scif_reg->handles[i].btl_handle.scif_offset, size);
}
}
free (scif_reg->handles);
return OPAL_SUCCESS;
}
