static void show_prompt(void) {
/*
* Flashnchips relies on prompt ending with "$ " to detect when it's okay
* to send the next line during file upload.
*/
printf("smartjs %u/%d$ ", sj_get_free_heap_size(),
v7_heap_stat(s_sjp.v7, V7_HEAP_STAT_HEAP_SIZE) -
v7_heap_stat(s_sjp.v7, V7_HEAP_STAT_HEAP_USED));
s_sjp.pos = 0;
s_sjp.char_processor = process_prompt_char;
}
static void show_prompt(void) {
/*
* Flashnchips relies on prompt ending with "$ " to detect when it's okay
* to send the next line during file upload.
*/
/* TODO RTOS(alashkin): RTOS printf doesn't support %lu */
printf("smartjs %u/%d$ ", (unsigned int) sj_get_free_heap_size(),
(int) v7_heap_stat(s_sjp.v7, V7_HEAP_STAT_HEAP_SIZE) -
(int) v7_heap_stat(s_sjp.v7, V7_HEAP_STAT_HEAP_USED));
fflush(stdout);
s_sjp.pos = 0;
s_sjp.char_processor = process_prompt_char;
}
static enum v7_err Sys_prof(struct v7 *v7, v7_val_t *res) {
*res = v7_mk_object(v7);
v7_set(v7, *res, "sysfree", 7, v7_mk_number(sj_get_free_heap_size()));
v7_set(v7, *res, "used_by_js", 10,
v7_mk_number(v7_heap_stat(v7, V7_HEAP_STAT_HEAP_USED)));
v7_set(v7, *res, "used_by_fs", 10, v7_mk_number(sj_get_fs_memory_usage()));
return V7_OK;
}
static v7_val_t OS_prof(struct v7 *v7, v7_val_t this_obj, v7_val_t args) {
v7_val_t result = v7_create_object(v7);
v7_own(v7, &result);
v7_set(v7, result, "sysfree", 7, 0,
v7_create_number(sj_get_free_heap_size()));
v7_set(v7, result, "used_by_js", 10, 0,
v7_create_number(v7_heap_stat(v7, V7_HEAP_STAT_HEAP_USED)));
v7_set(v7, result, "used_by_fs", 10, 0,
v7_create_number(sj_get_fs_memory_usage()));
v7_disown(v7, &result);
return result;
}
/*
* Returns an object describing the free memory.
*
* sysfree: free system heap bytes
* jssize: size of JS heap in bytes
* jsfree: free JS heap bytes
* strres: size of reserved string heap in bytes
* struse: portion of string heap with used data
* objnfree: number of free object slots in js heap
* propnfree: number of free property slots in js heap
* funcnfree: number of free function slots in js heap
*/
SJ_PRIVATE enum v7_err GC_stat(struct v7 *v7, v7_val_t *res) {
/* take a snapshot of the stats that would change as we populate the result */
size_t sysfree = sj_get_free_heap_size();
size_t jssize = v7_heap_stat(v7, V7_HEAP_STAT_HEAP_SIZE);
size_t jsfree = jssize - v7_heap_stat(v7, V7_HEAP_STAT_HEAP_USED);
size_t strres = v7_heap_stat(v7, V7_HEAP_STAT_STRING_HEAP_RESERVED);
size_t struse = v7_heap_stat(v7, V7_HEAP_STAT_STRING_HEAP_USED);
size_t objfree = v7_heap_stat(v7, V7_HEAP_STAT_OBJ_HEAP_FREE);
size_t propnfree = v7_heap_stat(v7, V7_HEAP_STAT_PROP_HEAP_FREE);
*res = v7_mk_object(v7);
v7_set(v7, *res, "sysfree", ~0, v7_mk_number(sysfree));
v7_set(v7, *res, "jssize", ~0, v7_mk_number(jssize));
v7_set(v7, *res, "jsfree", ~0, v7_mk_number(jsfree));
v7_set(v7, *res, "strres", ~0, v7_mk_number(strres));
v7_set(v7, *res, "struse", ~0, v7_mk_number(struse));
v7_set(v7, *res, "objfree", ~0, v7_mk_number(objfree));
v7_set(v7, *res, "objncell", ~0,
v7_mk_number(v7_heap_stat(v7, V7_HEAP_STAT_OBJ_HEAP_CELL_SIZE)));
v7_set(v7, *res, "propnfree", ~0, v7_mk_number(propnfree));
v7_set(v7, *res, "propncell", ~0,
v7_mk_number(v7_heap_stat(v7, V7_HEAP_STAT_PROP_HEAP_CELL_SIZE)));
v7_set(v7, *res, "funcnfree", ~0,
v7_mk_number(v7_heap_stat(v7, V7_HEAP_STAT_FUNC_HEAP_FREE)));
v7_set(v7, *res, "funcncell", ~0,
v7_mk_number(v7_heap_stat(v7, V7_HEAP_STAT_FUNC_HEAP_CELL_SIZE)));
v7_set(v7, *res, "astsize", ~0,
v7_mk_number(v7_heap_stat(v7, V7_HEAP_STAT_FUNC_AST_SIZE)));
v7_set(v7, *res, "owned", ~0,
v7_mk_number(v7_heap_stat(v7, V7_HEAP_STAT_FUNC_OWNED)));
v7_set(v7, *res, "owned_max", ~0,
v7_mk_number(v7_heap_stat(v7, V7_HEAP_STAT_FUNC_OWNED_MAX)));
return V7_OK;
}
/*
* Returns an object describing the free memory.
*
* sysfree: free system heap bytes
* jssize: size of JS heap in bytes
* jsfree: free JS heap bytes
* strres: size of reserved string heap in bytes
* struse: portion of string heap with used data
* objnfree: number of free object slots in js heap
* propnfree: number of free property slots in js heap
* funcnfree: number of free function slots in js heap
*/
static v7_val_t GC_stat(struct v7 *v7, v7_val_t this_obj, v7_val_t args) {
/* take a snapshot of the stats that would change as we populate the result */
size_t sysfree = sj_get_free_heap_size();
size_t jssize = v7_heap_stat(v7, V7_HEAP_STAT_HEAP_SIZE);
size_t jsfree = jssize - v7_heap_stat(v7, V7_HEAP_STAT_HEAP_USED);
size_t strres = v7_heap_stat(v7, V7_HEAP_STAT_STRING_HEAP_RESERVED);
size_t struse = v7_heap_stat(v7, V7_HEAP_STAT_STRING_HEAP_USED);
size_t objfree = v7_heap_stat(v7, V7_HEAP_STAT_OBJ_HEAP_FREE);
size_t propnfree = v7_heap_stat(v7, V7_HEAP_STAT_PROP_HEAP_FREE);
v7_val_t f = v7_create_undefined();
v7_own(v7, &f);
f = v7_create_object(v7);
v7_set(v7, f, "sysfree", ~0, 0, v7_create_number(sysfree));
v7_set(v7, f, "jssize", ~0, 0, v7_create_number(jssize));
v7_set(v7, f, "jsfree", ~0, 0, v7_create_number(jsfree));
v7_set(v7, f, "strres", ~0, 0, v7_create_number(strres));
v7_set(v7, f, "struse", ~0, 0, v7_create_number(struse));
v7_set(v7, f, "objfree", ~0, 0, v7_create_number(objfree));
v7_set(v7, f, "objncell", ~0, 0,
v7_create_number(v7_heap_stat(v7, V7_HEAP_STAT_OBJ_HEAP_CELL_SIZE)));
v7_set(v7, f, "propnfree", ~0, 0, v7_create_number(propnfree));
v7_set(v7, f, "propncell", ~0, 0,
v7_create_number(v7_heap_stat(v7, V7_HEAP_STAT_PROP_HEAP_CELL_SIZE)));
v7_set(v7, f, "funcnfree", ~0, 0,
v7_create_number(v7_heap_stat(v7, V7_HEAP_STAT_FUNC_HEAP_FREE)));
v7_set(v7, f, "funcncell", ~0, 0,
v7_create_number(v7_heap_stat(v7, V7_HEAP_STAT_FUNC_HEAP_CELL_SIZE)));
v7_set(v7, f, "astsize", ~0, 0,
v7_create_number(v7_heap_stat(v7, V7_HEAP_STAT_FUNC_AST_SIZE)));
v7_set(v7, f, "owned", ~0, 0,
v7_create_number(v7_heap_stat(v7, V7_HEAP_STAT_FUNC_OWNED)));
v7_set(v7, f, "owned_max", ~0, 0,
v7_create_number(v7_heap_stat(v7, V7_HEAP_STAT_FUNC_OWNED_MAX)));
v7_disown(v7, &f);
return f;
}
