void __a_serializet(T *t,char *name) {
char fn[1000];
H h =_m_new_from_t(t);
S *s = _m_serialize(h.m);
__a_vm_fn(fn,G_vm->dir,name);
writeFile(fn,s,s->total_size);
free(s);
_m_free(h);
}
/**
* clean shutdown of the the ceptr system
*
* should be called by the thread that called _a_boot() (or _a_start_vmhost())
*/
void _a_shut_down() {
// cleanly close down any processing in the VM_Host
__r_kill(G_vm->r);
_v_join_thread(&G_vm->clock_thread);
_v_join_thread(&G_vm->vm_thread);
char fn[1000];
// serialize the semtable
__a_serializet(_t_root(G_vm->sem->stores[0].definitions),SEM_FN);
int i;
T *paths = _t_new_root(RECEPTOR_PATHS);
for (i=0;i<G_vm->sem->contexts;i++) { // we don't need the path of the root so start at 1
int *p = _t_get_path(G_vm->sem->stores[i].definitions);
if (p) {
_t_new(paths,RECEPTOR_PATH,p,sizeof(int)*(_t_path_depth(p)+1));
free(p);
}
else
_t_newr(paths,STRUCTURE_ANYTHING); // should be something like DELETED_CONTEXT
}
__a_serializet(paths,PATHS_FN);
_t_free(paths);
// serialize the receptor part of the vmhost
void *surface;
size_t length;
_r_serialize(G_vm->r,&surface,&length);
// _r_unserialize(surface);
__a_vmfn(fn,G_vm->dir);
writeFile(fn,surface,length);
free(surface);
// serialize other parts of the vmhost
H h = _m_newr(null_H,SYS_STATE);
H har = _m_newr(h,ACTIVE_RECEPTORS);
for (i=0;i<G_vm->active_receptor_count;i++) {
_m_new(har,RECEPTOR_XADDR,&G_vm->active_receptors[i].x,sizeof(Xaddr));
}
S *s = _m_serialize(h.m);
__a_vm_state_fn(fn,G_vm->dir);
writeFile(fn,s,s->total_size);
free(s);
_m_free(h);
// free the memory used by the SYS_RECEPTOR
_v_free(G_vm);
G_vm = NULL;
}
/**
* create a serialized version of an mtree
*
* @param[in] oh handle of mtree node to detach from the mtree
* @param[inout] sizeP pointer to size_t value to return length of serialized data
* @returns pointer to newly malloced buffer of serialized tree data
*/
S *_m_serialize(M *m) {
uint32_t s_size = SERIALIZED_HEADER_SIZE(m->levels);
uint32_t levels_size = 0;
size_t blob_size = 0;
Mindex i;
H h = {m,{0,0}};
// calculate level and blob sizes so we can allocate
for(h.a.l=0; h.a.l<m->levels; h.a.l++) {
L *l = GET_LEVEL(h);
levels_size += SERIALIZED_LEVEL_SIZE(l);
for(h.a.i=0;h.a.i < l->nodes;h.a.i++) {
N *n = GET_NODE(h,l);
blob_size+=n->size;
}
}
size_t total_size = s_size+levels_size+blob_size;
S *s = malloc(total_size);
memset(s,0,total_size);
s->magic = m->magic;
s->total_size = total_size;
s->levels = m->levels;
s->blob_offset = s_size+levels_size;
void *blob = s->blob_offset + (void *)s;
levels_size = 0;
blob_size = 0;
for(h.a.l=0; h.a.l<m->levels; h.a.l++) {
s->level_offsets[h.a.l] = levels_size;
L *sl = (L *) (((void *)s) + s_size + levels_size);
L *l = GET_LEVEL(h);
levels_size += SERIALIZED_LEVEL_SIZE(l);
sl->nodes = l->nodes;
N *sn = sizeof(Mindex)+(void *)sl;
for(h.a.i=0;h.a.i < l->nodes;h.a.i++) {
N *n = GET_NODE(h,l);
*sn = *n;
// raise(SIGINT);
if (n->flags & TFLAG_SURFACE_IS_RECEPTOR) {
raise_error("can't serialize receptors");
}
if (n->flags & TFLAG_SURFACE_IS_TREE && !(n->flags & TFLAG_SURFACE_IS_RECEPTOR)) {
H sh = *(H *)n->surface;
S *ss = _m_serialize(sh.m);
*(size_t *)&sn->surface = blob_size;
// orth tree size wasn't included in the original total size so
// we have to realloc the buffer and increase the size
// @todo, a better way to do this would have been to serialize the orthogonal
// trees ahead of time in the size calculation loop so as not to have to
// realloc here, instead we could just copy the tree in
size_t new_total_size = s->total_size + ss->total_size;
s = realloc(s,new_total_size);
s->total_size = new_total_size;
// reset pointers into the serialized block because of the realloc:
// blob, sl and sn
blob = s->blob_offset + (void *)s;
sl = (L *) (((void *)s) + s_size + levels_size);
sn = sizeof(Mindex)+(void *)sl + SERIALIZED_NODE_SIZE*h.a.i;
memcpy(blob+blob_size,ss,ss->total_size);
blob_size+=ss->total_size;
free(ss);
}
else if (n->flags & TFLAG_ALLOCATED) {
*(size_t *)&sn->surface = blob_size;
memcpy(blob+blob_size,n->surface,n->size);
blob_size+=n->size;
}
else {
memcpy(&sn->surface,&n->surface,n->size);
}
sn = (N *) (SERIALIZED_NODE_SIZE + ((void*)sn));
}
}
return s;
}
