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Prefix mrb_gc_state enum members, make color defines private

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furunkel
2015-10-20 10:54:47 +02:00
parent 2b39d87fe8
commit 1c6b1d0155
2 changed files with 62 additions and 63 deletions
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include/mruby/gc.h
+3 -12
View File
@@ -21,23 +21,14 @@ typedef void (mrb_each_object_callback)(struct mrb_state *mrb, struct RBasic *ob
void mrb_objspace_each_objects(struct mrb_state *mrb, mrb_each_object_callback *callback, void *data);
MRB_API void mrb_free_context(struct mrb_state *mrb, struct mrb_context *c);
/* white: 011, black: 100, gray: 000 */
#define MRB_GC_GRAY 0
#define MRB_GC_WHITE_A 1
#define MRB_GC_WHITE_B (1 << 1)
#define MRB_GC_BLACK (1 << 2)
#define MRB_GC_WHITES (MRB_GC_WHITE_A | MRB_GC_WHITE_B)
#define MRB_GC_COLOR_MASK 7
#ifndef MRB_GC_ARENA_SIZE
#define MRB_GC_ARENA_SIZE 100
#endif
typedef enum {
GC_STATE_ROOT = 0,
GC_STATE_MARK,
GC_STATE_SWEEP
MRB_GC_STATE_ROOT = 0,
MRB_GC_STATE_MARK,
MRB_GC_STATE_SWEEP
} mrb_gc_state;
typedef struct mrb_heap_page {
src/gc.c
+59 -51
View File
@@ -172,16 +172,24 @@ gettimeofday_time(void)
#define GC_STEP_SIZE 1024
#define paint_gray(o) ((o)->color = MRB_GC_GRAY)
#define paint_black(o) ((o)->color = MRB_GC_BLACK)
#define paint_white(o) ((o)->color = MRB_GC_WHITES)
/* white: 011, black: 100, gray: 000 */
#define GC_GRAY 0
#define GC_WHITE_A 1
#define GC_WHITE_B (1 << 1)
#define GC_BLACK (1 << 2)
#define GC_WHITES (GC_WHITE_A | GC_WHITE_B)
#define GC_COLOR_MASK 7
#define paint_gray(o) ((o)->color = GC_GRAY)
#define paint_black(o) ((o)->color = GC_BLACK)
#define paint_white(o) ((o)->color = GC_WHITES)
#define paint_partial_white(s, o) ((o)->color = (s)->current_white_part)
#define is_gray(o) ((o)->color == MRB_GC_GRAY)
#define is_white(o) ((o)->color & MRB_GC_WHITES)
#define is_black(o) ((o)->color & MRB_GC_BLACK)
#define is_gray(o) ((o)->color == GC_GRAY)
#define is_white(o) ((o)->color & GC_WHITES)
#define is_black(o) ((o)->color & GC_BLACK)
#define flip_white_part(s) ((s)->current_white_part = other_white_part(s))
#define other_white_part(s) ((s)->current_white_part ^ MRB_GC_WHITES)
#define is_dead(s, o) (((o)->color & other_white_part(s) & MRB_GC_WHITES) || (o)->tt == MRB_TT_FREE)
#define other_white_part(s) ((s)->current_white_part ^ GC_WHITES)
#define is_dead(s, o) (((o)->color & other_white_part(s) & GC_WHITES) || (o)->tt == MRB_TT_FREE)
#define objects(p) ((RVALUE *)p->objects)
@@ -342,7 +350,7 @@ mrb_gc_init(mrb_state *mrb, mrb_gc *gc)
gc->arena_capa = MRB_GC_ARENA_SIZE;
#endif
gc->current_white_part = MRB_GC_WHITE_A;
gc->current_white_part = GC_WHITE_A;
gc->heaps = NULL;
gc->free_heaps = NULL;
add_heap(mrb, gc);
@@ -923,7 +931,7 @@ final_marking_phase(mrb_state *mrb, mrb_gc *gc)
static void
prepare_incremental_sweep(mrb_state *mrb, mrb_gc *gc)
{
gc->state = GC_STATE_SWEEP;
gc->state = MRB_GC_STATE_SWEEP;
gc->sweeps = gc->heaps;
gc->live_after_mark = gc->live;
}
@@ -994,12 +1002,12 @@ static size_t
incremental_gc(mrb_state *mrb, mrb_gc *gc, size_t limit)
{
switch (gc->state) {
case GC_STATE_ROOT:
case MRB_GC_STATE_ROOT:
root_scan_phase(mrb, gc);
gc->state = GC_STATE_MARK;
gc->state = MRB_GC_STATE_MARK;
flip_white_part(gc);
return 0;
case GC_STATE_MARK:
case MRB_GC_STATE_MARK:
if (gc->gray_list) {
return incremental_marking_phase(mrb, gc, limit);
}
@@ -1008,11 +1016,11 @@ incremental_gc(mrb_state *mrb, mrb_gc *gc, size_t limit)
prepare_incremental_sweep(mrb, gc);
return 0;
}
case GC_STATE_SWEEP: {
case MRB_GC_STATE_SWEEP: {
size_t tried_sweep = 0;
tried_sweep = incremental_sweep_phase(mrb, gc, limit);
if (tried_sweep == 0)
gc->state = GC_STATE_ROOT;
gc->state = MRB_GC_STATE_ROOT;
return tried_sweep;
}
default:
@@ -1037,7 +1045,7 @@ incremental_gc_step(mrb_state *mrb, mrb_gc *gc)
limit = (GC_STEP_SIZE/100) * gc->step_ratio;
while (result < limit) {
result += incremental_gc(mrb, gc, limit);
if (gc->state == GC_STATE_ROOT)
if (gc->state == MRB_GC_STATE_ROOT)
break;
}
@@ -1052,14 +1060,14 @@ clear_all_old(mrb_state *mrb, mrb_gc *gc)
mrb_assert(is_generational(gc));
if (is_major_gc(gc)) {
/* finish the half baked GC */
incremental_gc_until(mrb, gc, GC_STATE_ROOT);
incremental_gc_until(mrb, gc, MRB_GC_STATE_ROOT);
}
/* Sweep the dead objects, then reset all the live objects
* (including all the old objects, of course) to white. */
gc->generational = FALSE;
prepare_incremental_sweep(mrb, gc);
incremental_gc_until(mrb, gc, GC_STATE_ROOT);
incremental_gc_until(mrb, gc, MRB_GC_STATE_ROOT);
gc->generational = origin_mode;
/* The gray objects have already been painted as white */
@@ -1077,13 +1085,13 @@ mrb_incremental_gc(mrb_state *mrb)
GC_TIME_START;
if (is_minor_gc(gc)) {
incremental_gc_until(mrb, gc, GC_STATE_ROOT);
incremental_gc_until(mrb, gc, MRB_GC_STATE_ROOT);
}
else {
incremental_gc_step(mrb, gc);
}
if (gc->state == GC_STATE_ROOT) {
if (gc->state == MRB_GC_STATE_ROOT) {
mrb_assert(gc->live >= gc->live_after_mark);
gc->threshold = (gc->live_after_mark/100) * gc->interval_ratio;
if (gc->threshold < GC_STEP_SIZE) {
@@ -1121,12 +1129,12 @@ mrb_full_gc(mrb_state *mrb)
clear_all_old(mrb, gc);
gc->full = TRUE;
}
else if (gc->state != GC_STATE_ROOT) {
else if (gc->state != MRB_GC_STATE_ROOT) {
/* finish half baked GC cycle */
incremental_gc_until(mrb, gc, GC_STATE_ROOT);
incremental_gc_until(mrb, gc, MRB_GC_STATE_ROOT);
}
incremental_gc_until(mrb, gc, GC_STATE_ROOT);
incremental_gc_until(mrb, gc, MRB_GC_STATE_ROOT);
gc->threshold = (gc->live_after_mark/100) * gc->interval_ratio;
if (is_generational(gc)) {
@@ -1185,13 +1193,13 @@ mrb_field_write_barrier(mrb_state *mrb, struct RBasic *obj, struct RBasic *value
if (!is_white(value)) return;
mrb_assert(!is_dead(gc, value) && !is_dead(gc, obj));
mrb_assert(is_generational(gc) || mrb->gc.state != GC_STATE_ROOT);
mrb_assert(is_generational(gc) || gc->state != MRB_GC_STATE_ROOT);
if (is_generational(gc) || mrb->gc.state == GC_STATE_MARK) {
if (is_generational(gc) || gc->state == MRB_GC_STATE_MARK) {
add_gray_list(mrb, gc, value);
}
else {
mrb_assert(mrb->gc.state == GC_STATE_SWEEP);
mrb_assert(gc->state == MRB_GC_STATE_SWEEP);
paint_partial_white(gc, obj); /* for never write barriers */
}
}
@@ -1213,7 +1221,7 @@ mrb_write_barrier(mrb_state *mrb, struct RBasic *obj)
if (!is_black(obj)) return;
mrb_assert(!is_dead(gc, obj));
mrb_assert(is_generational(gc) || gc->state != GC_STATE_ROOT);
mrb_assert(is_generational(gc) || gc->state != MRB_GC_STATE_ROOT);
paint_gray(obj);
obj->gcnext = gc->atomic_gray_list;
gc->atomic_gray_list = obj;
@@ -1350,11 +1358,11 @@ change_gen_gc_mode(mrb_state *mrb, mrb_gc *gc, mrb_bool enable)
{
if (is_generational(gc) && !enable) {
clear_all_old(mrb, gc);
mrb_assert(gc->state == GC_STATE_ROOT);
mrb_assert(gc->state == MRB_GC_STATE_ROOT);
gc->full = FALSE;
}
else if (!is_generational(gc) && enable) {
incremental_gc_until(mrb, gc, GC_STATE_ROOT);
incremental_gc_until(mrb, gc, MRB_GC_STATE_ROOT);
gc->majorgc_old_threshold = gc->live_after_mark/100 * DEFAULT_MAJOR_GC_INC_RATIO;
gc->full = FALSE;
}
@@ -1466,16 +1474,16 @@ test_mrb_field_write_barrier(void)
paint_partial_white(mrb, value);
puts(" in GC_STATE_MARK");
gc->state = GC_STATE_MARK;
puts(" in MRB_GC_STATE_MARK");
gc->state = MRB_GC_STATE_MARK;
mrb_field_write_barrier(mrb, obj, value);
mrb_assert(is_gray(value));
puts(" in GC_STATE_SWEEP");
puts(" in MRB_GC_STATE_SWEEP");
paint_partial_white(mrb, value);
gc->state = GC_STATE_SWEEP;
gc->state = MRB_GC_STATE_SWEEP;
mrb_field_write_barrier(mrb, obj, value);
mrb_assert(obj->color & gc->current_white_part);
@@ -1483,7 +1491,7 @@ test_mrb_field_write_barrier(void)
puts(" fail with black");
gc->state = GC_STATE_MARK;
gc->state = MRB_GC_STATE_MARK;
paint_white(obj);
paint_partial_white(mrb, value);
mrb_field_write_barrier(mrb, obj, value);
@@ -1492,7 +1500,7 @@ test_mrb_field_write_barrier(void)
puts(" fail with gray");
gc->state = GC_STATE_MARK;
gc->state = MRB_GC_STATE_MARK;
paint_black(obj);
paint_gray(value);
mrb_field_write_barrier(mrb, obj, value);
@@ -1507,7 +1515,7 @@ test_mrb_field_write_barrier(void)
paint_black(obj);
paint_partial_white(mrb, mrb_basic_ptr(value));
gc->state = GC_STATE_MARK;
gc->state = MRB_GC_STATE_MARK;
mrb_field_write_barrier_value(mrb, obj, value);
mrb_assert(is_gray(mrb_basic_ptr(value)));
@@ -1527,8 +1535,8 @@ test_mrb_write_barrier(void)
obj = mrb_basic_ptr(mrb_ary_new(mrb));
paint_black(obj);
puts(" in GC_STATE_MARK");
gc->state = GC_STATE_MARK;
puts(" in MRB_GC_STATE_MARK");
gc->state = MRB_GC_STATE_MARK;
mrb_write_barrier(mrb, obj);
mrb_assert(is_gray(obj));
@@ -1615,15 +1623,15 @@ test_incremental_gc(void)
puts(" in mrb_full_gc");
mrb_full_gc(mrb);
mrb_assert(gc->state == GC_STATE_ROOT);
puts(" in GC_STATE_ROOT");
mrb_assert(gc->state == MRB_GC_STATE_ROOT);
puts(" in MRB_GC_STATE_ROOT");
incremental_gc(mrb, max);
mrb_assert(gc->state == GC_STATE_MARK);
puts(" in GC_STATE_MARK");
incremental_gc_until(mrb, GC_STATE_SWEEP);
mrb_assert(gc->state == GC_STATE_SWEEP);
mrb_assert(gc->state == MRB_GC_STATE_MARK);
puts(" in MRB_GC_STATE_MARK");
incremental_gc_until(mrb, MRB_GC_STATE_SWEEP);
mrb_assert(gc->state == MRB_GC_STATE_SWEEP);
puts(" in GC_STATE_SWEEP");
puts(" in MRB_GC_STATE_SWEEP");
page = gc->heaps;
while (page) {
RVALUE *p = objects(page);
@@ -1644,10 +1652,10 @@ test_incremental_gc(void)
mrb_assert(gc->gray_list == NULL);
incremental_gc(mrb, max);
mrb_assert(gc->state == GC_STATE_SWEEP);
mrb_assert(gc->state == MRB_GC_STATE_SWEEP);
incremental_gc(mrb, max);
mrb_assert(gc->state == GC_STATE_ROOT);
mrb_assert(gc->state == MRB_GC_STATE_ROOT);
free = (RVALUE*)gc->heaps->freelist;
while (free) {
@@ -1659,11 +1667,11 @@ test_incremental_gc(void)
mrb_assert(gc->live == total-freed);
puts("test_incremental_gc(gen)");
incremental_gc_until(mrb, GC_STATE_SWEEP);
incremental_gc_until(mrb, MRB_GC_STATE_SWEEP);
change_gen_gc_mode(mrb, TRUE);
mrb_assert(gc->full == FALSE);
mrb_assert(gc->state == GC_STATE_ROOT);
mrb_assert(gc->state == MRB_GC_STATE_ROOT);
puts(" in minor");
mrb_assert(is_minor_gc(mrb));
@@ -1671,13 +1679,13 @@ test_incremental_gc(void)
gc->majorgc_old_threshold = 0;
mrb_incremental_gc(mrb);
mrb_assert(gc->full == TRUE);
mrb_assert(gc->state == GC_STATE_ROOT);
mrb_assert(gc->state == MRB_GC_STATE_ROOT);
puts(" in major");
mrb_assert(is_major_gc(mrb));
do {
mrb_incremental_gc(mrb);
} while (gc->state != GC_STATE_ROOT);
} while (gc->state != MRB_GC_STATE_ROOT);
mrb_assert(gc->full == FALSE);
mrb_close(mrb);