6 std::map<THREADHANDLE, factor_vm*> thread_vms;
10 init_platform_globals();
13 void factor_vm::default_parameters(vm_parameters *p)
17 p->datastack_size = 32 * sizeof(cell);
18 p->retainstack_size = 32 * sizeof(cell);
19 p->callstack_size = 128 * sizeof(cell);
21 p->code_size = 8 * sizeof(cell);
22 p->young_size = sizeof(cell) / 4;
23 p->aging_size = sizeof(cell) / 2;
24 p->tenured_size = 24 * sizeof(cell);
37 p->callback_size = 256;
40 bool factor_vm::factor_arg(const vm_char* str, const vm_char* arg, cell* value)
43 if(SSCANF(str,arg,&val) > 0)
52 void factor_vm::init_parameters_from_args(vm_parameters *p, int argc, vm_char **argv)
54 default_parameters(p);
55 p->executable_path = argv[0];
59 for(i = 1; i < argc; i++)
61 vm_char *arg = argv[i];
62 if(STRCMP(arg,STRING_LITERAL("--")) == 0) break;
63 else if(factor_arg(arg,STRING_LITERAL("-datastack=%d"),&p->datastack_size));
64 else if(factor_arg(arg,STRING_LITERAL("-retainstack=%d"),&p->retainstack_size));
65 else if(factor_arg(arg,STRING_LITERAL("-callstack=%d"),&p->callstack_size));
66 else if(factor_arg(arg,STRING_LITERAL("-young=%d"),&p->young_size));
67 else if(factor_arg(arg,STRING_LITERAL("-aging=%d"),&p->aging_size));
68 else if(factor_arg(arg,STRING_LITERAL("-tenured=%d"),&p->tenured_size));
69 else if(factor_arg(arg,STRING_LITERAL("-codeheap=%d"),&p->code_size));
70 else if(factor_arg(arg,STRING_LITERAL("-pic=%d"),&p->max_pic_size));
71 else if(factor_arg(arg,STRING_LITERAL("-callbacks=%d"),&p->callback_size));
72 else if(STRCMP(arg,STRING_LITERAL("-fep")) == 0) p->fep = true;
73 else if(STRCMP(arg,STRING_LITERAL("-nosignals")) == 0) p->signals = false;
74 else if(STRNCMP(arg,STRING_LITERAL("-i="),3) == 0) p->image_path = arg + 3;
75 else if(STRCMP(arg,STRING_LITERAL("-console")) == 0) p->console = true;
79 /* Compile code in boot image so that we can execute the startup quotation */
80 void factor_vm::prepare_boot_image()
82 std::cout << "*** Stage 2 early init... ";
86 update_code_heap_words(true);
87 initialize_all_quotations();
88 special_objects[OBJ_STAGE2] = true_object;
90 std::cout << "done\n";
93 void factor_vm::init_factor(vm_parameters *p)
96 p->datastack_size = align_page(p->datastack_size << 10);
97 p->retainstack_size = align_page(p->retainstack_size << 10);
98 p->callstack_size = align_page(p->callstack_size << 10);
99 p->callback_size = align_page(p->callback_size << 10);
102 p->young_size <<= 20;
103 p->aging_size <<= 20;
104 p->tenured_size <<= 20;
107 /* Disable GC during init as a sanity check */
110 /* OS-specific initialization */
113 const vm_char *executable_path = vm_executable_path();
116 p->executable_path = executable_path;
118 if(p->image_path == NULL)
119 p->image_path = default_image_path();
121 srand((unsigned int)system_micros());
123 init_contexts(p->datastack_size,p->retainstack_size,p->callstack_size);
124 init_callbacks(p->callback_size);
127 init_inline_caching(p->max_pic_size);
136 special_objects[OBJ_CPU] = allot_alien(false_object,(cell)FACTOR_CPU_STRING);
137 special_objects[OBJ_OS] = allot_alien(false_object,(cell)FACTOR_OS_STRING);
138 special_objects[OBJ_CELL_SIZE] = tag_fixnum(sizeof(cell));
139 special_objects[OBJ_EXECUTABLE] = allot_alien(false_object,(cell)p->executable_path);
140 special_objects[OBJ_ARGS] = false_object;
141 special_objects[OBJ_EMBEDDED] = false_object;
142 special_objects[OBJ_VM_COMPILER] = allot_alien(false_object,(cell)FACTOR_COMPILER_VERSION);
147 if(!to_boolean(special_objects[OBJ_STAGE2]))
148 prepare_boot_image();
151 /* May allocate memory */
152 void factor_vm::pass_args_to_factor(int argc, vm_char **argv)
154 growable_array args(this);
156 for(fixnum i = 1; i < argc; i++)
157 args.add(allot_alien(false_object,(cell)argv[i]));
160 special_objects[OBJ_ARGS] = args.elements.value();
163 void factor_vm::start_factor(vm_parameters *p)
165 if(p->fep) factorbug();
167 c_to_factor_toplevel(special_objects[OBJ_STARTUP_QUOT]);
170 void factor_vm::stop_factor()
172 c_to_factor_toplevel(special_objects[OBJ_SHUTDOWN_QUOT]);
175 char *factor_vm::factor_eval_string(char *string)
177 char *(*callback)(char *) = (char *(*)(char *))alien_offset(special_objects[OBJ_EVAL_CALLBACK]);
178 return callback(string);
181 void factor_vm::factor_eval_free(char *result)
186 void factor_vm::factor_yield()
188 void (*callback)() = (void (*)())alien_offset(special_objects[OBJ_YIELD_CALLBACK]);
192 void factor_vm::factor_sleep(long us)
194 void (*callback)(long) = (void (*)(long))alien_offset(special_objects[OBJ_SLEEP_CALLBACK]);
198 void factor_vm::start_standalone_factor(int argc, vm_char **argv)
201 default_parameters(&p);
202 init_parameters_from_args(&p,argc,argv);
204 pass_args_to_factor(argc,argv);
213 factor_vm *new_factor_vm()
215 factor_vm *newvm = new factor_vm();
216 register_vm_with_thread(newvm);
217 thread_vms[thread_id()] = newvm;
222 // arg must be new'ed because we're going to delete it!
223 void *start_standalone_factor_thread(void *arg)
225 factor_vm *newvm = new_factor_vm();
226 startargs *args = (startargs*) arg;
227 int argc = args->argc; vm_char **argv = args->argv;
229 newvm->start_standalone_factor(argc, argv);
233 VM_C_API void start_standalone_factor(int argc, vm_char **argv)
235 factor_vm *newvm = new_factor_vm();
236 return newvm->start_standalone_factor(argc,argv);
239 VM_C_API THREADHANDLE start_standalone_factor_in_new_thread(int argc, vm_char **argv)
241 startargs *args = new startargs;
242 args->argc = argc; args->argv = argv;
243 return start_thread(start_standalone_factor_thread,args);