/* ------------------------------------------------------------------------------------ */
static int gasnetc_attach_primary(void) {
int retval = GASNET_OK;
AMLOCK();
/* pause to make sure all nodes have called attach
if a node calls gasnet_exit() between init/attach, then this allows us
to process the AMUDP_SPMD control messages required for job shutdown
*/
gasnetc_bootstrapBarrier();
/* ------------------------------------------------------------------------------------ */
/* register fatal signal handlers */
/* catch fatal signals and convert to SIGQUIT */
gasneti_registerSignalHandlers(gasneti_defaultSignalHandler);
#if HAVE_ON_EXIT
on_exit(gasnetc_on_exit, NULL);
#else
atexit(gasnetc_atexit);
#endif
#if GASNET_TRACE || GASNET_DEBUG
#if !GASNET_DEBUG
if (GASNETI_TRACE_ENABLED(A))
#endif
GASNETI_AM_SAFE(AMUDP_SetHandlerCallbacks(gasnetc_endpoint,
gasnetc_enteringHandler_hook, gasnetc_leavingHandler_hook));
#endif
#if GASNETC_MOCK_EVERYTHING
retval = AM_SetSeg(gasnetc_endpoint, NULL, (uintptr_t)-1);
if (retval != AM_OK) INITERR(RESOURCE, "AM_SetSeg() failed");
#endif
/* ------------------------------------------------------------------------------------ */
/* primary attach complete */
gasneti_attach_done = 1;
gasnetc_bootstrapBarrier();
AMUNLOCK();
GASNETI_TRACE_PRINTF(C,("gasnetc_attach_primary(): primary attach complete\n"));
gasnete_init(); /* init the extended API */
gasneti_nodemapFini();
/* ensure extended API is initialized across nodes */
AMLOCK();
gasnetc_bootstrapBarrier();
AMUNLOCK();
gasneti_assert(retval == GASNET_OK);
return retval;
done: /* error return while locked */
AMUNLOCK();
GASNETI_RETURN(retval);
}
/* ------------------------------------------------------------------------------------ */
extern int gasnetc_attach(gasnet_handlerentry_t *table, int numentries,
uintptr_t segsize, uintptr_t minheapoffset) {
int retval = GASNET_OK;
void *segbase = NULL;
GASNETI_TRACE_PRINTF(C,("gasnetc_attach(table (%i entries), segsize=%lu, minheapoffset=%lu)",
numentries, (unsigned long)segsize, (unsigned long)minheapoffset));
AMLOCK();
if (!gasneti_init_done)
INITERR(NOT_INIT, "GASNet attach called before init");
if (gasneti_attach_done)
INITERR(NOT_INIT, "GASNet already attached");
/* pause to make sure all nodes have called attach
if a node calls gasnet_exit() between init/attach, then this allows us
to process the AMUDP_SPMD control messages required for job shutdown
*/
gasnetc_bootstrapBarrier();
/* check argument sanity */
#if GASNET_SEGMENT_FAST || GASNET_SEGMENT_LARGE
if ((segsize % GASNET_PAGESIZE) != 0)
INITERR(BAD_ARG, "segsize not page-aligned");
if (segsize > gasneti_MaxLocalSegmentSize)
INITERR(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 */
#ifdef GASNETC_MAX_NUMHANDLERS
/* Initialize shadow handler table */
{ int i;
for (i=0; i<GASNETC_MAX_NUMHANDLERS; i++)
gasnetc_handler[i]=(gasneti_handler_fn_t)&gasneti_defaultAMHandler;
}
#endif
{ /* 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 (gasnetc_reghandlers(ctable, len, 1, 63, 0, &numreg) != GASNET_OK)
INITERR(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 (gasnetc_reghandlers(etable, len, 64, 127, 0, &numreg) != GASNET_OK)
INITERR(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 (gasnetc_reghandlers(table, numentries, 128, 255, 0, &numreg1) != GASNET_OK)
INITERR(RESOURCE,"Error registering fixed-index client handlers");
/* second pass - fill in dontcare-index handlers */
if (gasnetc_reghandlers(table, numentries, 128, 255, 1, &numreg2) != GASNET_OK)
INITERR(RESOURCE,"Error registering fixed-index client handlers");
gasneti_assert(numreg1 + numreg2 == numentries);
}
/* ------------------------------------------------------------------------------------ */
/* register fatal signal handlers */
/* catch fatal signals and convert to SIGQUIT */
gasneti_registerSignalHandlers(gasneti_defaultSignalHandler);
#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
gasneti_segmentAttach(segsize, minheapoffset, gasneti_seginfo, &gasnetc_bootstrapExchange);
#else /* GASNET_SEGMENT_EVERYTHING */
{ int i;
for (i=0;i<gasneti_nodes;i++) {
gasneti_seginfo[i].addr = (void *)0;
gasneti_seginfo[i].size = (uintptr_t)-1;
}
}
#endif
segbase = gasneti_seginfo[gasneti_mynode].addr;
segsize = gasneti_seginfo[gasneti_mynode].size;
/* 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);
}
/* AMUDP allows arbitrary registration with no further action */
if (segsize) {
retval = AM_SetSeg(gasnetc_endpoint, segbase, segsize);
if (retval != AM_OK) INITERR(RESOURCE, "AM_SetSeg() failed");
}
#if GASNET_TRACE
if (GASNETI_TRACE_ENABLED(A))
GASNETI_AM_SAFE(AMUDP_SetHandlerCallbacks(gasnetc_endpoint,
gasnetc_enteringHandler_hook, gasnetc_leavingHandler_hook));
#endif
/* ------------------------------------------------------------------------------------ */
/* primary attach complete */
gasneti_attach_done = 1;
gasnetc_bootstrapBarrier();
AMUNLOCK();
GASNETI_TRACE_PRINTF(C,("gasnetc_attach(): primary attach complete\n"));
gasneti_auxseg_attach(); /* provide auxseg */
gasnete_init(); /* init the extended API */
gasneti_nodemapFini();
/* ensure extended API is initialized across nodes */
AMLOCK();
gasnetc_bootstrapBarrier();
AMUNLOCK();
gasneti_assert(retval == GASNET_OK);
return retval;
done: /* error return while locked */
AMUNLOCK();
GASNETI_RETURN(retval);
}