void erts_cleanup_messages(ErtsMessage *msgp) { ErtsMessage *mp = msgp; while (mp) { ErtsMessage *fmp; ErlHeapFragment *bp; if (ERTS_SIG_IS_EXTERNAL_MSG(mp)) { if (is_not_immed(ERL_MESSAGE_TOKEN(mp))) { bp = (ErlHeapFragment *) mp->data.dist_ext->ext_endp; erts_cleanup_offheap(&bp->off_heap); } if (mp->data.dist_ext) erts_free_dist_ext_copy(mp->data.dist_ext); } else { if (ERTS_SIG_IS_INTERNAL_MSG(mp) && mp->data.attached != ERTS_MSG_COMBINED_HFRAG) { bp = mp->data.heap_frag; } else { mp->data.attached = ERTS_MSG_COMBINED_HFRAG; bp = mp->hfrag.next; erts_cleanup_offheap(&mp->hfrag.off_heap); } if (bp) free_message_buffer(bp); } fmp = mp; mp = mp->next; erts_free_message(fmp); } }
Sint erts_move_messages_off_heap(Process *c_p) { int reds = 1; int i; ErtsMessage *msgq[] = {c_p->sig_qs.first, c_p->sig_qs.cont}; /* * Move all messages off heap. This *only* occurs when the * process had off heap message disabled and just enabled * it... */ reds += erts_proc_sig_privqs_len(c_p) / 10; ASSERT(erts_atomic32_read_nob(&c_p->state) & ERTS_PSFLG_OFF_HEAP_MSGQ); ASSERT(c_p->flags & F_OFF_HEAP_MSGQ_CHNG); for (i = 0; i < sizeof(msgq)/sizeof(msgq[0]); i++) { ErtsMessage *mp; for (mp = msgq[i]; mp; mp = mp->next) { Uint msg_sz, token_sz; #ifdef USE_VM_PROBES Uint utag_sz; #endif Eterm *hp; ErlHeapFragment *hfrag; if (!ERTS_SIG_IS_INTERNAL_MSG(mp)) continue; if (mp->data.attached) continue; if (is_immed(ERL_MESSAGE_TERM(mp)) #ifdef USE_VM_PROBES && is_immed(ERL_MESSAGE_DT_UTAG(mp)) #endif && is_not_immed(ERL_MESSAGE_TOKEN(mp))) continue; /* * The message refers into the heap. Copy the message * from the heap into a heap fragment and attach * it to the message... */ msg_sz = size_object(ERL_MESSAGE_TERM(mp)); #ifdef USE_VM_PROBES utag_sz = size_object(ERL_MESSAGE_DT_UTAG(mp)); #endif token_sz = size_object(ERL_MESSAGE_TOKEN(mp)); hfrag = new_message_buffer(msg_sz #ifdef USE_VM_PROBES + utag_sz #endif + token_sz); hp = hfrag->mem; if (is_not_immed(ERL_MESSAGE_TERM(mp))) ERL_MESSAGE_TERM(mp) = copy_struct(ERL_MESSAGE_TERM(mp), msg_sz, &hp, &hfrag->off_heap); if (is_not_immed(ERL_MESSAGE_TOKEN(mp))) ERL_MESSAGE_TOKEN(mp) = copy_struct(ERL_MESSAGE_TOKEN(mp), token_sz, &hp, &hfrag->off_heap); #ifdef USE_VM_PROBES if (is_not_immed(ERL_MESSAGE_DT_UTAG(mp))) ERL_MESSAGE_DT_UTAG(mp) = copy_struct(ERL_MESSAGE_DT_UTAG(mp), utag_sz, &hp, &hfrag->off_heap); #endif mp->data.heap_frag = hfrag; reds += 1; } } return reds; }