VM* vm_new(int num_cpus) {
if (num_cpus <= 0) {
LOG_ERROR("vm_new: num_cpus <= 0");
return NULL;
}
VM* vm = (VM*)IOMalloc(sizeof(VM));
if (!vm) {
LOG_ERROR("vm_new: can't allocate VM");
return NULL;
}
memset(vm, 0, sizeof(VM));
vm->num_cpus = num_cpus;
vm->cpus = (CPU**)IOMalloc(sizeof(CPU*) * num_cpus);
if (!vm->cpus) {
LOG_ERROR("vm_new: can't allocate cpus[]");
vm_delete(vm);
return NULL;
}
memset(vm->cpus, 0, sizeof(sizeof(CPU*) * num_cpus));
for (int i = 0; i < vm->num_cpus; i++) {
CPU* cpu = cpu_new();
if (!cpu) {
vm_delete(vm);
return NULL;
}
vm->cpus[i] = cpu;
}
LOG("created VM");
return vm;
}
/**
* Cleanup function for VM 'viewport' stmt.
*/
void vm_viewport_cleanup(VMStmt *curstmt)
{
VMStmtViewport * stmtobj = (VMStmtViewport *) curstmt;
// Free the parameter initializer expressions.
//
delete_exprtree(stmtobj->expr_from);
stmtobj->expr_from = NULL;
delete_exprtree(stmtobj->expr_at);
stmtobj->expr_at = NULL;
delete_exprtree(stmtobj->expr_angle);
stmtobj->expr_angle = NULL;
// Free up the lvalue objects we've associated with this context.
//
vm_delete_lvalue(stmtobj->lv_from);
stmtobj->lv_from = NULL;
vm_delete_lvalue(stmtobj->lv_at);
stmtobj->lv_at = NULL;
vm_delete_lvalue(stmtobj->lv_angle);
stmtobj->lv_angle = NULL;
// Recursively free the statements in our block.
//
vm_delete(stmtobj->block);
stmtobj->block = NULL;
}
/**
* Cleanup function for VM visibility stmt.
*
* @param curstmt - VMStmt * - Base pointer to the statement for this type.
*/
void vm_visibility_cleanup(VMStmt *curstmt)
{
VMStmtVisibility * stmtbkgrnd = (VMStmtVisibility *) curstmt;
// Free the parameter initializer expressions.
//
delete_exprtree(stmtbkgrnd->expr_color);
stmtbkgrnd->expr_color = NULL;
delete_exprtree(stmtbkgrnd->expr_distance);
stmtbkgrnd->expr_distance = NULL;
// Recursively free the statements in our block.
//
vm_delete(stmtbkgrnd->block);
stmtbkgrnd->block = NULL;
}
/**
* Cleanup function for VM background stmt.
*
* @param curstmt - VMStmt * - Base pointer to the statement for this type.
*/
void vm_background_cleanup(VMStmt *curstmt)
{
VMStmtBackground * stmtbkgrnd = (VMStmtBackground *) curstmt;
// Free the parameter initializer expressions.
//
delete_exprtree(stmtbkgrnd->expr_color1);
stmtbkgrnd->expr_color1 = NULL;
delete_exprtree(stmtbkgrnd->expr_color2);
stmtbkgrnd->expr_color2 = NULL;
// Recursively free the statements in our block.
//
vm_delete(stmtbkgrnd->block);
stmtbkgrnd->block = NULL;
}