// helper function to recursively travers a ttree and build an mtree out of it
// used by _m_new_from_t
H __mnft(H parent,T *t) {
int i, c = _t_children(t);
H h = _m_new(parent,_t_symbol(t),_t_surface(t),_t_size(t));
for(i=1;i<=c;i++) {
__mnft(h,_t_child(t,i));
}
return 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 new mtree node with an integer surface
*
* @param[in] parent parent node handle for the node to be created. Can be 0 if this is a root node
* @param[in] symbol semantic symbol for the node to be create
* @param[in] surface integer value to store in the surface
* @returns handle to node
*/
H _m_newi(H parent,Symbol symbol,int surface) {
return _m_new(parent,symbol,&surface,sizeof(int));
}
/**
* Create a new mtree node with no surface value
*
* @param[in] parent parent node handle for the node to be created. Can be 0 if this is a root node
* @param[in] symbol semantic symbol for the node to be create
* @returns handle to node
*/
H _m_newr(H parent,Symbol s) {
return _m_new(parent,s,0,0);
}
/**
* Create a new tree
*
* @param[in] symbol semantic symbol for the node to be created
* @returns handle to root node
*/
H _m_new_root(Symbol s) {
return _m_new(null_H,s,0,0);
}