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allocgc_BM.c
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// file allocgc_BM.c
// SPDX-License-Identifier: GPL-3.0-or-later
/***
BISMON
Copyright © 2018 - 2022 CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
contributed by Basile Starynkevitch (working at CEA, LIST, France)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
***/
#include "bismon.h"
struct allalloc_stBM *allocationvec_vBM;
pthread_mutex_t allocationmutex_BM = PTHREAD_MUTEX_INITIALIZER;
atomic_bool want_garbage_collection_BM;
double last_gctime_BM;
pthread_t mainthreadid_BM;
void
initialize_garbage_collector_BM (void)
{
mainthreadid_BM = pthread_self ();
char thnambuf[16];
memset (thnambuf, 0, sizeof (thnambuf));
if (!strcmp (basename_BM (myprogname_BM), "bismon"))
snprintf (thnambuf, sizeof (thnambuf), "bismon-p%d", (int) getpid ());
else
snprintf (thnambuf, sizeof (thnambuf), "%.7s.p%d",
basename_BM (myprogname_BM), (int) getpid ());
pthread_setname_np (mainthreadid_BM, thnambuf);
atomic_init (&want_garbage_collection_BM, false);
pthread_mutex_init (&allocationmutex_BM, NULL);
last_gctime_BM = clocktime_BM (CLOCK_REALTIME);
unsigned alsiz = 8190;
allocationvec_vBM =
malloc (sizeof (struct allalloc_stBM) + alsiz * sizeof (void *));
if (!allocationvec_vBM)
FATAL_BM ("failed to malloc initial allocationvec_vBM of %u (%m)", alsiz);
memset (allocationvec_vBM, 0,
sizeof (struct allalloc_stBM) + alsiz * sizeof (void *));
allocationvec_vBM->al_size = alsiz;
} /* end initialize_garbage_collector_BM */
void
request_delayed_garbage_collection_BM (void)
{
// this should be the only place where want_garbage_collection_BM
// becomes true
bool gcwaswanted = atomic_load (&want_garbage_collection_BM);
atomic_store (&want_garbage_collection_BM, true); // request delayed GC
if (!gcwaswanted)
add_rungarbcoll_command_BM ();
agenda_notify_BM ();
} /* end request_delayed_garbage_collection_BM */
bool
wanting_garbage_collection_BM (void)
{
return atomic_load (&want_garbage_collection_BM);
} /* end garbage_collection_is_wanted_BM */
void *
allocgcty_BM (unsigned type, size_t sz)
{
pthread_mutex_lock (&allocationmutex_BM);
ASSERT_BM (allocationvec_vBM != NULL);
unsigned long alloc_size = allocationvec_vBM->al_size;
unsigned long alloc_nb = allocationvec_vBM->al_nb;
if (alloc_nb + 3 >= alloc_size)
{
unsigned long new_alloc_size =
((4 * alloc_size / 3 + alloc_size / 8 + 600) | 511) - 2;
struct allalloc_stBM *new_allocvec = //
calloc (1,
sizeof (struct allalloc_stBM) //
+ new_alloc_size * sizeof (void *));
if (!new_allocvec)
FATAL_BM ("failed reallocation of allocvec %ld (%m)", new_alloc_size);
new_allocvec->al_size = new_alloc_size;
new_allocvec->al_nb = alloc_nb;
memcpy (new_allocvec->al_ptr, allocationvec_vBM->al_ptr,
alloc_nb * sizeof (void *));
free (allocationvec_vBM), allocationvec_vBM = new_allocvec;
request_delayed_garbage_collection_BM ();
}
if (sz % 2 * sizeof (void *) != 0)
sz = (sz | (2 * sizeof (void *) - 1)) + 1;
ASSERT_BM (sz > sizeof (typedhead_tyBM));
ASSERT_BM (sz < MAXSIZE_BM * sizeof (double));
typedhead_tyBM *newzon = malloc (sz);
if (!newzon)
FATAL_BM ("failed fresh GC allocation of new zone %zd bytes (%m)", sz);
memset (newzon, 0, sz);
newzon->htyp = type;
allocationvec_vBM->al_ptr[alloc_nb++] = newzon;
allocationvec_vBM->al_nb = alloc_nb;
pthread_mutex_unlock (&allocationmutex_BM);
return newzon;
} /* end allocgcty_BM */
void *
valuegcproc_BM (struct garbcoll_stBM *gc, value_tyBM val, int depth)
{
ASSERT_BM (gc && gc->gc_magic == GCMAGIC_BM);
if (!val)
return NULL;
if (depth >= MAXDEPTHGC_BM)
FATAL_BM ("too deep %u valuegcproc_BM", depth);
int ty = valtype_BM (val);
if (!ty || ty == tyInt_BM)
return val;
uint8_t oldmark = ((typedhead_tyBM *) val)->hgc;
if (oldmark)
return val;
switch (ty)
{
case tyString_BM:
return stringgcproc_BM (gc, (stringval_tyBM *) val);
case tyDouble_BM:
return doublegcproc_BM (gc, (doubleval_tyBM *) val);
case tyObject_BM:
gcobjmark_BM (gc, val);
return val;
case tySet_BM:
return setgcproc_BM (gc, (setval_tyBM *) val);
case tyTuple_BM:
return tuplegcproc_BM (gc, (tupleval_tyBM *) val);
case tyNode_BM:
return nodegcproc_BM (gc, (node_tyBM *) val, depth);
case tyClosure_BM:
return closuregcproc_BM (gc, (closure_tyBM *) val, depth);
case tyUnspecified_BM:
return val;
case typayl_FailureHandler_BM:
{
struct failurehandler_stBM *fh = (struct failurehandler_stBM *) val;
if (fh->failh_magic != FAILUREHANDLEMAGIC_BM)
FATAL_BM ("valuegcproc_BM corrupted failurehandler @%p", val);
fh->failh_reason = valuegcproc_BM (gc, fh->failh_reason, depth + 1);
return val;
}
default:
FATAL_BM ("valuegcproc_BM ty#%d (%s) unexpected for val@%p depth=%d\n",
ty, typestring_BM (ty), val, depth);
};
} /* end valuegcproc_BM */
void *
extendedgcproc_BM (struct garbcoll_stBM *gc, extendedval_tyBM xval,
objectval_tyBM * fromob, int depth)
{
ASSERT_BM (gc && gc->gc_magic == GCMAGIC_BM);
ASSERT_BM (fromob == NULL || isobject_BM (fromob));
if (!xval)
return NULL;
if (istaggedint_BM (xval))
return xval;
if (depth >= MAXDEPTHGC_BM)
FATAL_BM ("too deep %u gcextendedmark fromob %s", depth,
objectdbg_BM (fromob));
if (((uintptr_t) xval & 3) == 0)
{
typedhead_tyBM *ht = (typedhead_tyBM *) xval;
if (ht->htyp == 0)
{
WARNPRINTF_BM
("@*@ corrupted zero-typed extended-val @%p fromob %s of %s depth#%d\n",
(void *) xval, objectdbg_BM (fromob),
objectdbg1_BM (objclass_BM (fromob)), depth);
weakassertfailureat_BM
("extendedgcproc_BM corruption zero-typed payload", __FILE__,
__LINE__);
return xval;
}
}
int ty = valtype_BM (xval);
if (!ty || ty == tyInt_BM)
return xval;
uint8_t oldmark = ((typedhead_tyBM *) xval)->hgc;
if (oldmark)
return xval;
switch (ty)
{
case tyString_BM:
return stringgcproc_BM (gc, (stringval_tyBM *) xval);
case tyDouble_BM:
return doublegcproc_BM (gc, (doubleval_tyBM *) xval);
case tyUnspecified_BM:
return xval;
case tyObject_BM:
gcobjmark_BM (gc, xval);
return xval;
case tySet_BM:
return setgcproc_BM (gc, (setval_tyBM *) xval);
case tyTuple_BM:
return tuplegcproc_BM (gc, (tupleval_tyBM *) xval);
case tyNode_BM:
return nodegcproc_BM (gc, (node_tyBM *) xval, depth);
case tyClosure_BM:
return closuregcproc_BM (gc, (closure_tyBM *) xval, depth);
///
case typayl_assocpairs_BM:
return assocpairsgcproc_BM (gc, (struct assocpairs_stBM *) xval, fromob,
depth);
case typayl_assoctable_BM:
return assoctablegcproc_BM (gc, (struct assoctable_stBM *) xval, fromob,
depth);
case typayl_hashsetobj_BM:
hashsetgcmark_BM (gc, (struct hashsetobj_stBM *) xval, fromob);
return xval;
case typayl_listtop_BM:
listgcmark_BM (gc, (struct listtop_stBM *) xval, fromob, depth);
return xval;
case typayl_strbuffer_BM:
strbuffergcmark_BM (gc, (struct strbuffer_stBM *) xval, fromob, depth);
return xval;
case typayl_loader_BM:
loadergcmark_BM (gc, (struct loader_stBM *) xval);
return xval;
case typayl_dumper_BM:
dumpgcmark_BM (gc, (struct dumper_stBM *) xval, fromob);
return xval;
case typayl_quasinode_BM:
return quasinodegcproc_BM (gc, (quasinode_tyBM *) xval, depth);
case typayl_vectval_BM:
return datavectgcproc_BM (gc, (struct datavectval_stBM *) xval, fromob,
depth);
case typayl_classinfo_BM:
classinfogcmark_BM (gc, (struct classinfo_stBM *) xval, fromob, depth);
return xval;
case typayl_dict_BM:
dictgcmark_BM (gc, (struct dict_stBM *) xval, fromob, depth);
return xval;
case typayl_hashsetval_BM:
hashsetvalgcmark_BM (gc, (struct hashsetval_stBM *) xval, fromob,
depth);
return xval;
case typayl_hashsetvbucket_BM:
hashsetvbucketgcmark_BM (gc, (struct hashsetvbucket_stBM *) xval,
fromob, depth);
return xval;
case typayl_hashmapval_BM:
hashmapvalgcmark_BM (gc, (struct hashmapval_stBM *) xval, fromob,
depth);
return xval;
case typayl_hashmapbucket_BM:
hashmapbucketgcmark_BM (gc, (struct hashmapbucket_stBM *) xval, fromob,
depth);
return xval;
case typayl_jansjson_BM:
jansjsongcmark_BM (gc, (struct jansjson_stBM *) xval, fromob, depth);
return xval;
case typayl_user_BM:
usergcmark_BM (gc, (struct user_stBM *) xval, fromob, depth);
return xval;
case typayl_decayed_BM:
decayedvectorgcmark_BM (gc,
(struct decayedvectpayl_stBM *) xval,
fromob, depth);
return xval;
case typayl_FailureHandler_BM:
{
struct failurehandler_stBM *fh = (struct failurehandler_stBM *) xval;
if (fh->failh_magic != FAILUREHANDLEMAGIC_BM)
FATAL_BM ("extendedgcproc_BM corrupted failurehandler @%p", xval);
fh->failh_reason = valuegcproc_BM (gc, fh->failh_reason, depth + 1);
return xval;
}
default:
FATAL_BM
("extendedgcproc_BM ty#%d unexpected for xval@%p fromob=%s of %s depth=%d",
ty, xval, objectdbg_BM (fromob),
objectdbg1_BM (objclass_BM (fromob)), depth);
}
} /* end extendedgcproc_BM */
void
valgcdestroy_BM (struct garbcoll_stBM *gc, value_tyBM val)
{
ASSERT_BM (gc && gc->gc_magic == GCMAGIC_BM);
if (!val)
return;
int ty = valtype_BM (val);
if (!ty || ty == tyInt_BM)
return;
ASSERT_BM (((typedhead_tyBM *) val)->hgc == CLEARMGC_BM);
switch (ty)
{
case tyString_BM:
stringgcdestroy_BM (gc, (stringval_tyBM *) val);
return;
case tyDouble_BM:
doublegcdestroy_BM (gc, (doubleval_tyBM *) val);
return;
case tyObject_BM:
objectgcdestroy_BM (gc, val);
return;
case tySet_BM:
setgcdestroy_BM (gc, (setval_tyBM *) val);
return;
case tyTuple_BM:
tuplegcdestroy_BM (gc, (tupleval_tyBM *) val);
return;
case tyNode_BM:
nodegcdestroy_BM (gc, (node_tyBM *) val);
return;
case tyClosure_BM:
closuregcdestroy_BM (gc, (closure_tyBM *) val);
return;
case typayl_assocpairs_BM:
assocpairgcdestroy_BM (gc, (struct assocpairs_stBM *) val);
return;
case typayl_assoctable_BM:
assoctablegcdestroy_BM (gc, (struct assoctable_stBM *) val);
return;
case typayl_hashsetobj_BM:
hashsetgcdestroy_BM (gc, (struct hashsetobj_stBM *) val);
return;
case typayl_listtop_BM:
listgcdestroy_BM (gc, (struct listtop_stBM *) val);
return;
case typayl_strbuffer_BM:
strbuffergcdestroy_BM (gc, (struct strbuffer_stBM *) val);
return;
case typayl_loader_BM:
loadergcdestroy_BM (gc, (struct loader_stBM *) val);
return;
case typayl_vectval_BM:
datavectgcdestroy_BM (gc, (struct datavectval_stBM *) val);
return;
case typayl_classinfo_BM:
classinfogcdestroy_BM (gc, (struct classinfo_stBM *) val);
return;
case typayl_dict_BM:
dictgcdestroy_BM (gc, (struct dict_stBM *) val);
return;
case typayl_parser_BM:
parsergcdestroy_BM (gc, (struct parser_stBM *) val);
return;
case typayl_dumper_BM:
dumpgcdestroy_BM (gc, (struct dumper_stBM *) val);
return;
case typayl_user_BM:
usergcdestroy_BM (gc, (struct user_stBM *) val);
return;
case typayl_decayed_BM:
decayedvectordestroy_BM (gc, (struct decayedvectpayl_stBM *) val);
return;
case typayl_FailureHandler_BM:
return;
case typayl_hashsetval_BM:
hashsetvalgcdestroy_BM (gc, (struct hashsetval_stBM *) val);
return;
case typayl_hashsetvbucket_BM:
hashsetvbucketgcdestroy_BM (gc, (struct hashsetvbucket_stBM *) val);
return;
case typayl_hashmapval_BM:
hashmapvalgcdestroy_BM (gc, (struct hashmapval_stBM *) val);
return;
case typayl_hashmapbucket_BM:
hashmapbucketgcdestroy_BM (gc, (struct hashmapbucket_stBM *) val);
return;
case typayl_jansjson_BM:
jansjsongcdestroy_BM (gc, (struct jansjson_stBM *) val);
return;
default:
FATAL_BM ("gcdestroy ty#%d unexpected for val@%p", ty, val);
}
} /* end valgcdestroy_BM */
const char *
typestring_BM (int ty)
{
switch (ty)
{
case tyInt_BM:
return "Int";
case tyNone_BM:
return "None";
case tyString_BM:
return "String";
case tyDouble_BM:
return "Double";
case tyObject_BM:
return "Object";
case tySet_BM:
return "Set";
case tyTuple_BM:
return "Tuple";
case tyNode_BM:
return "Node";
case tyClosure_BM:
return "Closure";
case typayl_assocpairs_BM:
return "payl_assocpairs";
case typayl_assoctable_BM:
return "payl_assoctable";
case typayl_hashsetobj_BM:
return "payl_hashsetobj";
case typayl_listtop_BM:
return "payl_listob";
case typayl_strbuffer_BM:
return "payl_strbuffer";
case typayl_loader_BM:
return "payl_loader";
case typayl_vectval_BM:
return "payl_vectval";
case typayl_classinfo_BM:
return "payl_classinfo";
case typayl_dict_BM:
return "payl_dict";
case typayl_parser_BM:
return "payl_parser";
case typayl_dumper_BM:
return "payl_dumper";
case typayl_FailureHandler_BM:
return "payl_FailureHandler";
case typayl_SpecialFrame_BM:
return "payl_SpecialFrame";
case typayl_StackFrame_BM:
return "payl_StackFrame";
case typayl_hashsetval_BM:
return "payl_hashsetval";
case typayl_hashsetvbucket_BM:
return "payl_hashsetbucket";
case typayl_hashmapval_BM:
return "payl_hashmapval";
case typayl_jansjson_BM:
return "payl_jansjson";
case typayl_hashmapbucket_BM:
return "payl_hashmapbucket";
case typayl_user_BM:
return "payl_user";
default:
{
static thread_local char buf[32];
snprintf (buf, sizeof (buf), "?ty#%d?", ty);
return buf;
}
}
} /* end typestring_BM */
void
deleteobjectpayload_BM (objectval_tyBM * obj, extendedval_tyBM payl)
{
ASSERT_BM (isobject_BM (obj));
if (!payl)
return;
if (istaggedint_BM (payl))
return;
if (((uintptr_t) payl & 3) == 0)
{
typedhead_tyBM *ht = (typedhead_tyBM *) payl;
if (ht->htyp == 0)
{
WARNPRINTF_BM
("@*@ deleteobjectpayload_BM corruption zero-typed payload unexpected payl@%p of object %s of %s\n",
payl, objectdbg_BM (obj), objectdbg1_BM (objclass_BM (obj)));
weakassertfailureat_BM
("deleteobjectpayload_BM corruption zero-typed payload", __FILE__,
__LINE__);
}
return;
}
int ty = valtype_BM (payl);
if (!ty || ty == tyInt_BM)
return;
switch (ty)
{
case tyString_BM:
case tyDouble_BM:
case tyObject_BM:
case tySet_BM:
case tyTuple_BM:
case tyNode_BM:
case tyClosure_BM:
return;
case typayl_assocpairs_BM:
return;
case typayl_assoctable_BM:
return;
case typayl_hashsetobj_BM:
return;
case typayl_listtop_BM:
return;
case typayl_strbuffer_BM:
return;
case typayl_loader_BM:
return;
case typayl_vectval_BM:
return;
case typayl_decayed_BM:
return;
case typayl_classinfo_BM:
return;
case typayl_dict_BM:
return;
case typayl_parser_BM:
return;
case typayl_dumper_BM:
return;
case typayl_user_BM:
userdelete_BM (obj, (struct user_stBM *) payl);
return;
default:
WARNPRINTF_BM
("deleteobjectpayload_BM ty#%d unexpected for payl@%p of object %s of %s",
ty, payl, objectdbg_BM (obj), objectdbg1_BM (objclass_BM (obj)));
weakassertfailureat_BM ("deleteobjectpayload_BM unexpected payload",
__FILE__, __LINE__);
}
} /* end deleteobjectpayload_BM */
void
valgckeep_BM (struct garbcoll_stBM *gc, value_tyBM val)
{
ASSERT_BM (gc && gc->gc_magic == GCMAGIC_BM);
if (!val)
return;
int ty = valtype_BM (val);
if (!ty || ty == tyInt_BM)
return;
ASSERT_BM (((typedhead_tyBM *) val)->hgc == MARKGC_BM);
switch (ty)
{
case tyString_BM:
stringgckeep_BM (gc, (stringval_tyBM *) val);
return;
case tyDouble_BM:
doublegckeep_BM (gc, (doubleval_tyBM *) val);
return;
case tyObject_BM:
objectgckeep_BM (gc, val);
return;
case tySet_BM:
setgckeep_BM (gc, (setval_tyBM *) val);
return;
case tyTuple_BM:
tuplegckeep_BM (gc, (tupleval_tyBM *) val);
return;
case tyNode_BM:
nodegckeep_BM (gc, (node_tyBM *) val);
return;
case tyClosure_BM:
closuregckeep_BM (gc, (closure_tyBM *) val);
return;
case typayl_assocpairs_BM:
assocpairgckeep_BM (gc, (struct assocpairs_stBM *) val);
return;
case typayl_assoctable_BM:
assoctablegckeep_BM (gc, (struct assoctable_stBM *) val);
return;
case typayl_hashsetobj_BM:
hashsetgckeep_BM (gc, (struct hashsetobj_stBM *) val);
return;
case typayl_listtop_BM:
listgckeep_BM (gc, (struct listtop_stBM *) val);
return;
case typayl_strbuffer_BM:
strbuffergckeep_BM (gc, (struct strbuffer_stBM *) val);
return;
case typayl_vectval_BM:
datavectgckeep_BM (gc, (struct datavectval_stBM *) val);
return;
case typayl_decayed_BM:
decayedvectorgckeep_BM (gc, (struct decayedvectpayl_stBM *) val);
return;
case typayl_loader_BM:
loadergckeep_BM (gc, (struct loader_stBM *) val);
return;
case typayl_classinfo_BM:
classinfogckeep_BM (gc, (struct classinfo_stBM *) val);
return;
case typayl_dict_BM:
dictgckeep_BM (gc, (struct dict_stBM *) val);
return;
case typayl_parser_BM:
parsergckeep_BM (gc, (struct parser_stBM *) val);
return;
case typayl_dumper_BM:
dumpgckeep_BM (gc, (struct dumper_stBM *) val);
return;
case typayl_hashsetval_BM:
hashsetvalgckeep_BM (gc, (struct hashsetval_stBM *) val);
return;
case typayl_hashsetvbucket_BM:
hashsetvbucketgckeep_BM (gc, (struct hashsetvbucket_stBM *) val);
return;
case typayl_hashmapval_BM:
hashmapvalgckeep_BM (gc, (struct hashmapval_stBM *) val);
return;
case typayl_hashmapbucket_BM:
hashmapbucketgckeep_BM (gc, (struct hashmapbucket_stBM *) val);
return;
case typayl_jansjson_BM:
jansjsongckeep_BM (gc, (struct jansjson_stBM *) val);
return;
case typayl_user_BM:
usergckeep_BM (gc, (struct user_stBM *) val);
return;
default:
FATAL_BM ("gckeep ty#%d unexpected for val@%p", ty, val);
}
} /* end valgckeep_BM */
void
gcobjmark_BM (struct garbcoll_stBM *gc, objectval_tyBM * obj)
{
ASSERT_BM (gc && gc->gc_magic == GCMAGIC_BM);
ASSERT_BM (obj != NULL && obj != HASHEMPTYSLOT_BM);
if (valtype_BM ((const value_tyBM) obj) != tyObject_BM)
FATAL_BM ("gcobjmark bad obj@%p", obj);
uint8_t oldmark = ((typedhead_tyBM *) obj)->hgc;
if (oldmark)
return;
((typedhead_tyBM *) obj)->hgc = MARKGC_BM;
gc->gc_nbmarks++;
ASSERT_BM (!hashsetobj_contains_BM (gc->gc_hset, obj));
gc->gc_hset = hashsetobj_add_BM (gc->gc_hset, obj);
ASSERT_BM (islist_BM (gc->gc_scanlist));
listappend_BM (gc->gc_scanlist, obj);
} /* end gcobjmark_BM */
void
gcframemark_BM (struct garbcoll_stBM *gc, struct stackframe_stBM *stkfram,
int depth)
{
ASSERT_BM (gc && gc->gc_magic == GCMAGIC_BM);
if (depth >= MAXDEPTHGC_BM)
FATAL_BM ("too deep %u gcframemark", depth);
unsigned framcnt = 0;
// it is on purpose that we don't test the oldmark or set it
for (; stkfram; stkfram = stkfram->stkfram_prev)
{
// this really should never happen
if (framcnt++ > MAXSIZE_BM / 4)
FATAL_BM ("too big framcnt=%u, curfram=%p", framcnt, stkfram);
if (((typedhead_tyBM *) stkfram)->htyp == typayl_StackFrame_BM)
{
if (stkfram->stkfram_descr)
gcobjmark_BM (gc, stkfram->stkfram_descr);
unsigned framsize = ((typedhead_tyBM *) stkfram)->rlen;
if (framsize > MAXSIZE_BM / 2)
FATAL_BM ("too big framesize %u, curfram=%p, framcnt#%d",
framsize, stkfram, framcnt);
VALUEGCPROC_BM (gc, (stkfram->stkfram_callfun), depth + 1);
for (unsigned ix = 0; ix < framsize; ix++)
VALUEGCPROC_BM (gc, stkfram->stkfram_locals[ix], depth + 1);
}
else if (((typedhead_tyBM *) stkfram)->htyp == typayl_SpecialFrame_BM)
{
struct specialframe_stBM *specfram
= (struct specialframe_stBM *) stkfram;
if (specfram->specfram_descr)
gcobjmark_BM (gc, specfram->specfram_descr);
if (specfram->specfram_markerout)
specfram->specfram_markerout (gc, specfram);
}
else
FATAL_BM ("invalid stackframe @%p of type#%d", stkfram,
(((typedhead_tyBM *) stkfram)->htyp));
};
} /* end gcframemark_BM */
static unsigned long countgc_BM;
void
full_garbage_collection_BM (struct stackframe_stBM *stkfram)
{
DBGPRINTF_BM
("start full_garbage_collection_BM tid#%ld elapsed %.3f s",
(long) gettid_BM (), elapsedtime_BM ());
ASSERT_BM (pthread_self () == mainthreadid_BM);
int nbj = agenda_nb_work_jobs_BM ();
DBGPRINTF_BM ("full_garbage_collection_BM nbj=%d", nbj);
if (nbj > 0)
{
agenda_suspend_for_gc_BM ();
DBGPRINTF_BM ("full_garbage_collection_BM after agendasuspend");
};
atomic_store (&want_garbage_collection_BM, false);
struct garbcoll_stBM GCdata = { };
memset (&GCdata, 0, sizeof (GCdata));
GCdata.gc_magic = GCMAGIC_BM;
GCdata.gc_startelapsedtime = elapsedtime_BM ();
GCdata.gc_startcputime = cputime_BM ();
ASSERT_BM (allocationvec_vBM != NULL);
countgc_BM++;
unsigned long alsiz = allocationvec_vBM->al_size;
unsigned long alcnt = allocationvec_vBM->al_nb;
unsigned long oldnbval = 0;
ASSERT_BM (alcnt <= alsiz);
ASSERT_BM (alcnt > 0);
for (unsigned long ix = 0; ix < alcnt; ix++)
{
typedhead_tyBM *curp = allocationvec_vBM->al_ptr[ix];
if (!curp)
continue;
if (curp->htyp < type_FIRST_BM || curp->htyp > typayl_LAST_BM)
{
fflush (NULL);
WARNPRINTF_BM ("corrupted allocated#%ld @%p (htyp %d)", ix, curp,
(int) (curp->htyp));
WEAKASSERTWARN_BM (curp->htyp >= type_FIRST_BM
&& curp->htyp <= typayl_LAST_BM);
continue;
};
ASSERT_BM (curp->htyp >= type_FIRST_BM && curp->htyp <= typayl_LAST_BM);
curp->hgc = CLEARMGC_BM;
oldnbval++;
}
GCdata.gc_scanlist = makelist_BM ();
GCdata.gc_hset = //
hashsetobj_grow_BM (NULL, prime_above_BM (alcnt / 16 + 300));
gcmarkpredefinedobjects_BM (&GCdata);
gcmarkconstants_BM (&GCdata);
gcmarkglobals_BM (&GCdata);
gcmarkdefer_BM (&GCdata);
gcmarkevloop_BM (&GCdata);
gcmarkagenda_BM (&GCdata);
gcmarkmodules_BM (&GCdata);
gcframemark_BM (&GCdata, stkfram, 0);
gcmarkpostponed_BM (&GCdata);
unsigned long nbobjscan = 0;
ASSERT_BM (GCdata.gc_scanlist != NULL);
((typedhead_tyBM *) GCdata.gc_scanlist)->hgc = MARKGC_BM;
ASSERT_BM (GCdata.gc_hset != NULL);
((typedhead_tyBM *) GCdata.gc_hset)->hgc = MARKGC_BM;
while (listlength_BM (GCdata.gc_scanlist) > 0)
{
value_tyBM firstv = listfirst_BM (GCdata.gc_scanlist);
listpopfirst_BM (GCdata.gc_scanlist);
ASSERT_BM (isobject_BM (firstv));
objectinteriorgcmark_BM (&GCdata, (objectval_tyBM *) firstv);
nbobjscan++;
}
((typedhead_tyBM *) GCdata.gc_scanlist)->hgc = CLEARMGC_BM;
((typedhead_tyBM *) GCdata.gc_hset)->hgc = CLEARMGC_BM;
GCdata.gc_scanlist = NULL;
GCdata.gc_hset = NULL;
unsigned long nbalive = 0;
unsigned long nbdestroy = 0;
for (unsigned long ix = 0; ix < alcnt; ix++)
{
typedhead_tyBM *curp = allocationvec_vBM->al_ptr[ix];
if (!curp)
continue;
if (curp->htyp < type_FIRST_BM || curp->htyp > typayl_LAST_BM)
{
fflush (NULL);
WARNPRINTF_BM ("skipping corrupted allocated#%ld @%p (htyp %d)", ix,
curp, (int) (curp->htyp));
WEAKASSERTWARN_BM (curp->htyp >= type_FIRST_BM
&& curp->htyp <= typayl_LAST_BM);
continue;
};
ASSERT_BM (curp->htyp >= type_FIRST_BM && curp->htyp <= typayl_LAST_BM);
if (curp->hgc == CLEARMGC_BM)
{
allocationvec_vBM->al_ptr[ix] = NULL;
valgcdestroy_BM (&GCdata, (value_tyBM) curp);
nbdestroy++;
}
else
{
ASSERT_BM (curp->hgc == MARKGC_BM);
valgckeep_BM (&GCdata, (value_tyBM) curp);
nbalive++;
}
};
unsigned long newsizall = prime_above_BM (4L * nbalive / 3 + 200);
struct allalloc_stBM *newallvec = //
malloc (sizeof (struct allalloc_stBM) + newsizall * sizeof (void *));
if (!newallvec)
FATAL_BM ("failed to malloc allocationvec of %lu (%m)", newsizall);
memset (newallvec, 0,
sizeof (struct allalloc_stBM) + newsizall * sizeof (void *));
newallvec->al_size = newsizall;
unsigned long newcntall = 0;
for (unsigned long ix = 0; ix < alcnt; ix++)
{
typedhead_tyBM *curp = allocationvec_vBM->al_ptr[ix];
if (!curp)
continue;
if (curp->htyp < type_FIRST_BM || curp->htyp > typayl_LAST_BM)
{
fflush (NULL);
WARNPRINTF_BM ("not deleting corrupted allocated#%ld @%p (htyp %d)",
ix, curp, (int) (curp->htyp));
WEAKASSERTWARN_BM (curp->htyp >= type_FIRST_BM
&& curp->htyp <= typayl_LAST_BM);
continue;
};
ASSERT_BM (curp->htyp >= type_FIRST_BM && curp->htyp <= typayl_LAST_BM);
newallvec->al_ptr[newcntall++] = curp;
allocationvec_vBM->al_ptr[ix] = NULL;
}
newallvec->al_nb = newcntall;
free (allocationvec_vBM), allocationvec_vBM = newallvec;
double endelapsedtime = elapsedtime_BM ();
double endcputime = cputime_BM ();
char *buf = NULL;
size_t siz = 0;
FILE *fil = gui_is_running_BM ? open_memstream (&buf, &siz) : stderr;
if (!fil)
FATAL_BM ("bad fil in full_garbage_collection_BM (%m)");
fprintf (fil,
"@@garbage collection #%ld : %.4f elapsed, %.4f cpu seconds\n",
countgc_BM, endelapsedtime - GCdata.gc_startelapsedtime,
endcputime - GCdata.gc_startcputime);
fprintf (fil,
"number of values: %ld -> %ld (-%ld), %ld slots; %ld marks\n",
oldnbval, newcntall, oldnbval - newcntall, alcnt,
GCdata.gc_nbmarks);
fprintf (fil, "%ld scanned, %ld kept, %ld static, %ld destroyed objects\n",
nbobjscan, GCdata.gc_nbkeptobjects, (long) BM_NB_PREDEFINED,
GCdata.gc_nbdestroyedobjects);
{
char keptbuf[40], freedbuf[40];
memset (keptbuf, 0, sizeof (keptbuf));
memset (freedbuf, 0, sizeof (freedbuf));
long keptb = GCdata.gc_keptbytes;
if (keptb < 128L * 1024)
snprintf (keptbuf, sizeof (keptbuf), "%ld bytes", keptb);
else if (keptb < 256L << 20)
snprintf (keptbuf, sizeof (keptbuf), "%ld kilobytes", keptb >> 10);
else
snprintf (keptbuf, sizeof (keptbuf), "%ld megabytes", keptb >> 20);
long freedb = GCdata.gc_freedbytes;
if (freedb < 128L * 1024)
snprintf (freedbuf, sizeof (freedbuf), "%ld bytes", freedb);
else if (freedb < 256L << 20)
snprintf (freedbuf, sizeof (freedbuf), "%ld kilobytes", freedb >> 10);
else
snprintf (freedbuf, sizeof (freedbuf), "%ld megabytes", freedb >> 20);
fprintf (fil, "data memory: kept %s, freed %s\n", keptbuf, freedbuf);
}
{
FILE *fstatm = fopen ("/proc/self/statm", "r");
if (fstatm)
{
long psiz = 0, rss = 0, shared = 0, code = 0;
long lib = 0, data = 0, dt = 0;
long pagsiz = sysconf (_SC_PAGESIZE);
if (fscanf (fstatm, "%ld %ld %ld %ld %ld %ld %ld",
&psiz, &rss, &shared, &code, &lib, &data, &dt) >= 7)
{
long psizbytes = psiz * pagsiz;
long rssbytes = rss * pagsiz;
long databytes = data * pagsiz;
char psizbuf[40], rssbuf[40], databuf[40];
memset (psizbuf, 0, sizeof (psizbuf));
memset (rssbuf, 0, sizeof (rssbuf));
memset (databuf, 0, sizeof (databuf));
if (psizbytes < 128L * 1024)
snprintf (psizbuf, sizeof (psizbuf), "%ld bytes", psizbytes);
else if (psizbytes < 256L << 20)
snprintf (psizbuf, sizeof (psizbuf), "%ld kilobytes",
psizbytes >> 10);
else
snprintf (psizbuf, sizeof (psizbuf), "%ld megabytes",
psizbytes >> 20);
if (rssbytes < 128L * 1024)
snprintf (rssbuf, sizeof (rssbuf), "%ld bytes", rssbytes);
else if (rssbytes < 256L << 20)
snprintf (rssbuf, sizeof (rssbuf), "%ld kilobytes",
rssbytes >> 10);
else
snprintf (rssbuf, sizeof (rssbuf), "%ld megabytes",
rssbytes >> 20);
if (databytes < 128L * 1024)
snprintf (databuf, sizeof (databuf), "%ld bytes", databytes);
else if (databytes < 256L << 20)
snprintf (databuf, sizeof (databuf), "%ld kilobytes",
databytes >> 10);
else
snprintf (databuf, sizeof (databuf), "%ld megabytes",
databytes >> 20);
fprintf (fil, "process [%d] vmem %s, rss %s, data %s\n",
(int) getpid (), psizbuf, rssbuf, databuf);
}
fclose (fstatm);
}
}
fprintf (fil, "-------\n\n");
fflush (fil);
last_gctime_BM = clocktime_BM (CLOCK_REALTIME);
DBGPRINTF_BM
("full_garbage_collection_BM before agenda_run_deferred_after_gc_BM");
agenda_run_deferred_after_gc_BM ();
if (nbj > 0)
{
DBGPRINTF_BM
("full_garbage_collection_BM before continue_after_gc nbj=%d", nbj);
agenda_continue_after_gc_BM ();
};
DBGPRINTF_BM ("full_garbage_collection_BM end tid#%ld\n\n",
(long) gettid_BM ());
} /* end full_garbage_collection_BM */
////////////////////////////////////////////////////////////////
static int clear_gcroots_bm (void);
int
clear_gcroots_bm (void)
{
int cnt = 0;
// clear the makeconst-managed constants
for (void ***p = bmconstaddrs; *p != NULL; p++)
{
if (*p)
{
objectval_tyBM *curobj = objectcast_BM (*p);
if (curobj != NULL)
{
objlock_BM (curobj);
objcompletelyclear_BM (curobj);
objunlock_BM (curobj);
}
}
};
// clear the globals
#define HAS_GLOBAL_BM(Glob) GLOBAL_BM(Glob) = NULL;
#include "_genbm_global.h"
// clear the predefined objects except `object` & `class`
#define HAS_PREDEF_BM(Id,Hi,Lo,Hash) do { \
objectval_tyBM* curprobj = PREDEF_BM(Id); \
if (curprobj != BMP_object \
&& curprobj != BMP_class) { \
objlock_BM (curprobj); \
objcompletelyclear_BM (curprobj); \
objunlock_BM (curprobj); \
PREDEF_BM(Id)=NULL; \
} \
} while(0);
#define HAS_NAMED_PREDEF_BM(Nam,id)
#include "_genbm_predef.h"
//
// at the very last, clear `object` and `class` predefined
objlock_BM (BMP_class);
objlock_BM (BMP_object);
objcompletelyclear_BM (BMP_class);
objcompletelyclear_BM (BMP_object);
objunlock_BM (BMP_class);
objunlock_BM (BMP_object);
BMP_class = NULL;
BMP_object = NULL;
cnt += BM_NB_PREDEFINED;
return cnt;
} /* end clear_gcroots_bm */
// make valgrind happy at exit time!
void
final_cleanup_BM (void)
{
int nbgcroots = clear_gcroots_bm ();
final_miscdata_cleanup_BM ();
pthread_mutex_lock (&allocationmutex_BM);
ASSERT_BM (allocationvec_vBM != NULL);
unsigned long alsiz = allocationvec_vBM->al_size;
unsigned long alcnt = allocationvec_vBM->al_nb;
ASSERT_BM (alcnt <= alsiz);
// first, completely clear all the objects in allocationvec_vBM
for (unsigned ix = 0; ix < alcnt; ix++)
{
void *curptr = allocationvec_vBM->al_ptr[ix];
if (!curptr)