static int so_atom_add(session_opt_t *so, const char *id, char *buf,
size_t size, void *arg)
{
atom_t *atom = NULL, *old = NULL;
size_t new_size, old_found = 0;
dbg_err_if (so == NULL);
dbg_err_if (id == NULL);
dbg_err_if (buf == NULL);
/* get the old atom associated to this id */
if(!atoms_get(so->atoms, id, &old))
old_found = 1;
/* delete the oldest session if there are already max_count sessions */
if(so->max_count && atoms_count(so->atoms) - old_found >= so->max_count)
dbg_err_if(session_delete_oldest(so));
/* delete the oldest session(s) if we are using already mem_limit bytes */
if(so->mem_limit)
{
warn_err_ifm(size > so->mem_limit,
"session size is bigger the memory.limit, save aborted...");
for(;;)
{
/* new_size = size of all atoms + size of the atom we're going to
add - the size of the atom (if found) we're going to remove */
new_size = atoms_size(so->atoms) + size - (old ? old->size : 0);
if(atoms_count(so->atoms) && new_size > so->mem_limit)
dbg_err_if(session_delete_oldest(so));
else
break;
}
}
/* create a new atom */
dbg_err_if(atom_create(id, buf, size, arg, &atom));
/* add it to the list */
dbg_err_if(atoms_add(so->atoms, atom));
/* remove the old atom associated to this id */
if(old)
{
dbg_err_if(atoms_remove(so->atoms, old));
atom_free(old);
}
return 0;
err:
if(atom)
atom_free(atom);
return ~0;
}
void
sys_add_atom(struct sys *sys, const char *name, vec_t xyz)
{
struct atoms *atoms = sys_get_atoms(sys, sys->current_frame);
assert(sys_single_frame(sys));
atoms_add(atoms, name, xyz);
graph_vertex_add(sys->graph);
sel_expand(sys->sel);
sel_expand(sys->visible);
sel_add(sys->visible, sel_get_size(sys->visible) - 1);
sys->is_modified = TRUE;
}
static int
load_from_xyz(struct sys *sys, const char *path, int is_new)
{
FILE *fp;
char *buffer;
struct atoms *atoms;
struct atom atom;
int i, n;
if ((fp = fopen(path, "r")) == NULL) {
error_set("unable to open %s", path);
return (FALSE);
}
if ((buffer = util_next_line(NULL, fp)) == NULL) {
error_set("unexpected end of file");
goto error;
}
if (sscanf(buffer, "%d", &n) != 1 || n < 1) {
error_set("unexpected number of atoms");
goto error;
}
buffer = util_next_line(buffer, fp);
for (i = 0; i < n; i++) {
if ((buffer = util_next_line(buffer, fp)) == NULL) {
error_set("unexpected end of file");
goto error;
}
if (!parse_atom_xyz(buffer, &atom))
goto error;
sys_add_atom(sys, atom.name, atom.xyz);
}
if (!is_new) {
free(buffer);
fclose(fp);
return (TRUE);
}
while ((buffer = util_next_line(buffer, fp)) != NULL) {
if (util_is_empty(buffer))
continue;
if (sscanf(buffer, "%d", &n) != 1 || n != sys_get_atom_count(sys)) {
error_set("unexpected number of atoms");
goto error;
}
sys_add_frame(sys, atoms_create());
sys_set_frame(sys, sys_get_frame_count(sys) - 1);
buffer = util_next_line(buffer, fp);
for (i = 0; i < n; i++) {
if ((buffer = util_next_line(buffer, fp)) == NULL) {
error_set("unexpected end of file");
goto error;
}
if (!parse_atom_xyz(buffer, &atom))
goto error;
atoms = sys_get_atoms(sys, sys->current_frame);
atoms_add(atoms, atom.name, atom.xyz);
}
}
sys_set_frame(sys, 0);
fclose(fp);
return (TRUE);
error:
free(buffer);
fclose(fp);
return (FALSE);
}