extern int gasnetc_EP_Create(gex_EP_t *ep_p,
gex_Client_t client,
gex_Flags_t flags) {
/* (###) add code here to create an endpoint belonging to the given client */
#if 1 // TODO-EX: This is a stub, which assumes 1 implicit call from ClientCreate
static gasneti_mutex_t lock = GASNETI_MUTEX_INITIALIZER;
gasneti_mutex_lock(&lock);
static int once = 0;
int prev = once;
once = 1;
gasneti_mutex_unlock(&lock);
if (prev) gasneti_fatalerror("Multiple endpoints are not yet implemented");
#endif
gasneti_EP_t ep = gasneti_alloc_ep(gasneti_import_client(client), flags, 0);
*ep_p = gasneti_export_ep(ep);
{ /* core API handlers */
gex_AM_Entry_t *ctable = (gex_AM_Entry_t *)gasnetc_get_handlertable();
int len = 0;
int numreg = 0;
gasneti_assert(ctable);
while (ctable[len].gex_fnptr) len++; /* calc len */
if (gasneti_amregister(ep->_amtbl, ctable, len, GASNETC_HANDLER_BASE, GASNETE_HANDLER_BASE, 0, &numreg) != GASNET_OK)
GASNETI_RETURN_ERRR(RESOURCE,"Error registering core API handlers");
gasneti_assert(numreg == len);
}
{ /* extended API handlers */
gex_AM_Entry_t *etable = (gex_AM_Entry_t *)gasnete_get_handlertable();
int len = 0;
int numreg = 0;
gasneti_assert(etable);
while (etable[len].gex_fnptr) len++; /* calc len */
if (gasneti_amregister(ep->_amtbl, etable, len, GASNETE_HANDLER_BASE, GASNETI_CLIENT_HANDLER_BASE, 0, &numreg) != GASNET_OK)
GASNETI_RETURN_ERRR(RESOURCE,"Error registering extended API handlers");
gasneti_assert(numreg == len);
}
return GASNET_OK;
}
/* ------------------------------------------------------------------------------------ */
extern int gasnetc_attach(gasnet_handlerentry_t *table, int numentries,
uintptr_t segsize, uintptr_t minheapoffset) {
void *segbase = NULL;
GASNETI_TRACE_PRINTF(C,("gasnetc_attach(table (%i entries), segsize=%"PRIuPTR", minheapoffset=%"PRIuPTR")",
numentries, segsize, minheapoffset));
if (!gasneti_init_done)
GASNETI_RETURN_ERRR(NOT_INIT, "GASNet attach called before init");
if (gasneti_attach_done)
GASNETI_RETURN_ERRR(NOT_INIT, "GASNet already attached");
/* check argument sanity */
#if GASNET_SEGMENT_FAST || GASNET_SEGMENT_LARGE
if ((segsize % GASNET_PAGESIZE) != 0)
GASNETI_RETURN_ERRR(BAD_ARG, "segsize not page-aligned");
if (segsize > gasneti_MaxLocalSegmentSize)
GASNETI_RETURN_ERRR(BAD_ARG, "segsize too large");
if ((minheapoffset % GASNET_PAGESIZE) != 0) /* round up the minheapoffset to page sz */
minheapoffset = ((minheapoffset / GASNET_PAGESIZE) + 1) * GASNET_PAGESIZE;
#else
segsize = 0;
minheapoffset = 0;
#endif
segsize = gasneti_auxseg_preattach(segsize); /* adjust segsize for auxseg reqts */
/* ------------------------------------------------------------------------------------ */
/* register handlers */
{ int i;
for (i = 0; i < GASNETC_MAX_NUMHANDLERS; i++)
gasnetc_handler[i] = (gasneti_handler_fn_t)&gasneti_defaultAMHandler;
}
{ /* core API handlers */
gasnet_handlerentry_t *ctable = (gasnet_handlerentry_t *)gasnetc_get_handlertable();
int len = 0;
int numreg = 0;
gasneti_assert(ctable);
while (ctable[len].fnptr) len++; /* calc len */
if (gasneti_amregister(ctable, len, 1, 63, 0, &numreg) != GASNET_OK)
GASNETI_RETURN_ERRR(RESOURCE,"Error registering core API handlers");
gasneti_assert(numreg == len);
}
{ /* extended API handlers */
gasnet_handlerentry_t *etable = (gasnet_handlerentry_t *)gasnete_get_handlertable();
int len = 0;
int numreg = 0;
gasneti_assert(etable);
while (etable[len].fnptr) len++; /* calc len */
if (gasneti_amregister(etable, len, 64, 127, 0, &numreg) != GASNET_OK)
GASNETI_RETURN_ERRR(RESOURCE,"Error registering extended API handlers");
gasneti_assert(numreg == len);
}
if (table) { /* client handlers */
int numreg1 = 0;
int numreg2 = 0;
/* first pass - assign all fixed-index handlers */
if (gasneti_amregister(table, numentries, 128, 255, 0, &numreg1) != GASNET_OK)
GASNETI_RETURN_ERRR(RESOURCE,"Error registering fixed-index client handlers");
/* second pass - fill in dontcare-index handlers */
if (gasneti_amregister(table, numentries, 128, 255, 1, &numreg2) != GASNET_OK)
GASNETI_RETURN_ERRR(RESOURCE,"Error registering variable-index client handlers");
gasneti_assert(numreg1 + numreg2 == numentries);
}
/* ------------------------------------------------------------------------------------ */
/* register fatal signal handlers */
/* catch fatal signals and convert to SIGQUIT */
gasneti_registerSignalHandlers(gasneti_defaultSignalHandler);
/* ------------------------------------------------------------------------------------ */
/* setup fo rexit coordination */
gasnetc_exittimeout = gasneti_get_exittimeout(GASNETC_DEFAULT_EXITTIMEOUT_MAX,
GASNETC_DEFAULT_EXITTIMEOUT_MIN,
GASNETC_DEFAULT_EXITTIMEOUT_FACTOR,
GASNETC_DEFAULT_EXITTIMEOUT_MIN);
#if HAVE_ON_EXIT
on_exit(gasnetc_on_exit, NULL);
#else
atexit(gasnetc_atexit);
#endif
/* ------------------------------------------------------------------------------------ */
/* register segment */
gasneti_seginfo = (gasnet_seginfo_t *)gasneti_malloc(gasneti_nodes*sizeof(gasnet_seginfo_t));
gasneti_leak(gasneti_seginfo);
#if GASNET_SEGMENT_FAST || GASNET_SEGMENT_LARGE
if (segsize == 0) segbase = NULL; /* no segment */
else {
gasneti_segmentAttach(segsize, minheapoffset, gasneti_seginfo, gasneti_bootstrapExchange);
segbase = gasneti_seginfo[gasneti_mynode].addr;
segsize = gasneti_seginfo[gasneti_mynode].size;
gasneti_assert(((uintptr_t)segbase) % GASNET_PAGESIZE == 0);
gasneti_assert(segsize % GASNET_PAGESIZE == 0);
}
#else
{ /* GASNET_SEGMENT_EVERYTHING */
gasnet_node_t i;
for (i=0; i<gasneti_nodes; i++) {
gasneti_seginfo[i].addr = (void *)0;
gasneti_seginfo[i].size = (uintptr_t)-1;
}
segbase = (void *)0;
segsize = (uintptr_t)-1;
}
#endif
gasnetc_ofi_attach(segbase, segsize);
/* After local segment is attached, call optional client-provided hook
(###) should call BEFORE any conduit-specific pinning/registration of the segment
*/
if (gasnet_client_attach_hook) {
gasnet_client_attach_hook(segbase, segsize);
}
/* ------------------------------------------------------------------------------------ */
/* primary attach complete */
gasneti_attach_done = 1;
gasneti_bootstrapBarrier();
GASNETI_TRACE_PRINTF(C,("gasnetc_attach(): primary attach complete"));
gasneti_assert(gasneti_seginfo[gasneti_mynode].addr == segbase &&
gasneti_seginfo[gasneti_mynode].size == segsize);
/* (###) exchange_fn is optional (may be NULL) and is only used with GASNET_SEGMENT_EVERYTHING
if your conduit has an optimized bootstrapExchange pass it in place of NULL
*/
gasneti_auxseg_attach(NULL); /* provide auxseg */
gasnete_init(); /* init the extended API */
gasneti_nodemapFini();
/* ensure extended API is initialized across nodes */
gasneti_bootstrapBarrier();
return GASNET_OK;
}
