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ruby19gc.patch
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ruby19gc.patch
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railsbench gc patch
From: Stefan Kaes <skaes@gmx.net>
---
gc.c | 1768 ++++++++++++++++++++++++++++++++++++++++--------------------------
1 files changed, 1067 insertions(+), 701 deletions(-)
diff --git a/gc.c b/gc.c
index d691942..19f6a4d 100644
--- a/gc.c
+++ b/gc.c
@@ -25,8 +25,16 @@
#include <setjmp.h>
#include <sys/types.h>
+#ifdef _WIN32
+#include <string.h>
+#else
+#include <strings.h>
+#endif
+
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
+#elif defined(_WIN32)
+#include <time.h>
#endif
#ifdef HAVE_SYS_RESOURCE_H
@@ -98,26 +106,26 @@ int ruby_gc_debug_indent = 0;
typedef struct RVALUE {
union {
- struct {
- VALUE flags; /* always 0 for freed obj */
- struct RVALUE *next;
- } free;
- struct RBasic basic;
- struct RObject object;
- struct RClass klass;
- struct RFloat flonum;
- struct RString string;
- struct RArray array;
- struct RRegexp regexp;
- struct RHash hash;
- struct RData data;
- struct RStruct rstruct;
- struct RBignum bignum;
- struct RFile file;
- struct RNode node;
- struct RMatch match;
- struct RRational rational;
- struct RComplex complex;
+ struct {
+ VALUE flags; /* always 0 for freed obj */
+ struct RVALUE *next;
+ } free;
+ struct RBasic basic;
+ struct RObject object;
+ struct RClass klass;
+ struct RFloat flonum;
+ struct RString string;
+ struct RArray array;
+ struct RRegexp regexp;
+ struct RHash hash;
+ struct RData data;
+ struct RStruct rstruct;
+ struct RBignum bignum;
+ struct RFile file;
+ struct RNode node;
+ struct RMatch match;
+ struct RRational rational;
+ struct RComplex complex;
} as;
#ifdef GC_DEBUG
char *file;
@@ -138,6 +146,29 @@ struct heaps_slot {
#define HEAP_MIN_SLOTS 10000
#define FREE_MIN 4096
+static int gc_heaps_increment = 10;
+static int gc_heap_slots = 10000;
+static int heap_min_slots = 10000;
+
+static int heap_free_min = 4096;
+static int heap_slots_increment = 10000;
+static double heap_slots_growth_factor = 1.8;
+
+static long initial_malloc_limit = GC_MALLOC_LIMIT;
+static int verbose_gc_stats = Qfalse;
+static FILE* gc_data_file = NULL;
+
+
+#if HAVE_LONG_LONG
+#define GC_TIME_TYPE LONG_LONG
+#else
+#define GC_TIME_TYPE long
+#endif
+
+static int gc_statistics = 0;
+static GC_TIME_TYPE gc_time = 0;
+static int gc_collections = 0;
+
struct gc_list {
VALUE *varptr;
struct gc_list *next;
@@ -147,34 +178,34 @@ struct gc_list {
typedef struct rb_objspace {
struct {
- size_t limit;
- size_t increase;
+ size_t limit;
+ size_t increase;
#if CALC_EXACT_MALLOC_SIZE
- size_t allocated_size;
- size_t allocations;
+ size_t allocated_size;
+ size_t allocations;
#endif
} malloc_params;
struct {
- size_t increment;
- struct heaps_slot *ptr;
- size_t length;
- size_t used;
- RVALUE *freelist;
- RVALUE *range[2];
- RVALUE *freed;
+ size_t increment;
+ struct heaps_slot *ptr;
+ size_t length;
+ size_t used;
+ RVALUE *freelist;
+ RVALUE *range[2];
+ RVALUE *freed;
} heap;
struct {
- int dont_gc;
- int during_gc;
+ int dont_gc;
+ int during_gc;
} flags;
struct {
- st_table *table;
- RVALUE *deferred;
+ st_table *table;
+ RVALUE *deferred;
} final;
struct {
- VALUE buffer[MARK_STACK_MAX];
- VALUE *ptr;
- int overflow;
+ VALUE buffer[MARK_STACK_MAX];
+ VALUE *ptr;
+ int overflow;
} markstack;
struct gc_list *global_list;
unsigned int count;
@@ -189,28 +220,28 @@ int *ruby_initial_gc_stress_ptr = &ruby_initial_gc_stress;
static rb_objspace_t rb_objspace = {{GC_MALLOC_LIMIT}, {HEAP_MIN_SLOTS}};
int *ruby_initial_gc_stress_ptr = &rb_objspace.gc_stress;
#endif
-#define malloc_limit objspace->malloc_params.limit
-#define malloc_increase objspace->malloc_params.increase
-#define heap_slots objspace->heap.slots
-#define heaps objspace->heap.ptr
-#define heaps_length objspace->heap.length
-#define heaps_used objspace->heap.used
-#define freelist objspace->heap.freelist
-#define lomem objspace->heap.range[0]
-#define himem objspace->heap.range[1]
-#define heaps_inc objspace->heap.increment
-#define heaps_freed objspace->heap.freed
-#define dont_gc objspace->flags.dont_gc
-#define during_gc objspace->flags.during_gc
-#define finalizer_table objspace->final.table
-#define deferred_final_list objspace->final.deferred
-#define mark_stack objspace->markstack.buffer
-#define mark_stack_ptr objspace->markstack.ptr
-#define mark_stack_overflow objspace->markstack.overflow
-#define global_List objspace->global_list
-#define ruby_gc_stress objspace->gc_stress
-
-#define need_call_final (finalizer_table && finalizer_table->num_entries)
+#define malloc_limit objspace->malloc_params.limit
+#define malloc_increase objspace->malloc_params.increase
+#define heap_slots objspace->heap.slots
+#define heaps objspace->heap.ptr
+#define heaps_length objspace->heap.length
+#define heaps_used objspace->heap.used
+#define freelist objspace->heap.freelist
+#define lomem objspace->heap.range[0]
+#define himem objspace->heap.range[1]
+#define heaps_inc objspace->heap.increment
+#define heaps_freed objspace->heap.freed
+#define dont_gc objspace->flags.dont_gc
+#define during_gc objspace->flags.during_gc
+#define finalizer_table objspace->final.table
+#define deferred_final_list objspace->final.deferred
+#define mark_stack objspace->markstack.buffer
+#define mark_stack_ptr objspace->markstack.ptr
+#define mark_stack_overflow objspace->markstack.overflow
+#define global_List objspace->global_list
+#define ruby_gc_stress objspace->gc_stress
+
+#define need_call_final (finalizer_table && finalizer_table->num_entries)
#if defined(ENABLE_VM_OBJSPACE) && ENABLE_VM_OBJSPACE
rb_objspace_t *
@@ -261,14 +292,14 @@ rb_memerror(void)
{
rb_thread_t *th = GET_THREAD();
if (!nomem_error ||
- (rb_thread_raised_p(th, RAISED_NOMEMORY) && rb_safe_level() < 4)) {
- fprintf(stderr, "[FATAL] failed to allocate memory\n");
- exit(EXIT_FAILURE);
+ (rb_thread_raised_p(th, RAISED_NOMEMORY) && rb_safe_level() < 4)) {
+ fprintf(stderr, "[FATAL] failed to allocate memory\n");
+ exit(EXIT_FAILURE);
}
if (rb_thread_raised_p(th, RAISED_NOMEMORY)) {
- rb_thread_raised_clear(th);
- GET_THREAD()->errinfo = nomem_error;
- JUMP_TAG(TAG_RAISE);
+ rb_thread_raised_clear(th);
+ GET_THREAD()->errinfo = nomem_error;
+ JUMP_TAG(TAG_RAISE);
}
rb_thread_raised_set(th, RAISED_NOMEMORY);
rb_exc_raise(nomem_error);
@@ -315,7 +346,7 @@ vm_xmalloc(rb_objspace_t *objspace, size_t size)
void *mem;
if (size < 0) {
- rb_raise(rb_eNoMemError, "negative allocation size (or too big)");
+ rb_raise(rb_eNoMemError, "negative allocation size (or too big)");
}
if (size == 0) size = 1;
@@ -324,17 +355,17 @@ vm_xmalloc(rb_objspace_t *objspace, size_t size)
#endif
if ((ruby_gc_stress && !ruby_disable_gc_stress) ||
- (malloc_increase+size) > malloc_limit) {
- garbage_collect(objspace);
+ (malloc_increase+size) > malloc_limit) {
+ garbage_collect(objspace);
}
RUBY_CRITICAL(mem = malloc(size));
if (!mem) {
- if (garbage_collect(objspace)) {
- RUBY_CRITICAL(mem = malloc(size));
- }
- if (!mem) {
- rb_memerror();
- }
+ if (garbage_collect(objspace)) {
+ RUBY_CRITICAL(mem = malloc(size));
+ }
+ if (!mem) {
+ rb_memerror();
+ }
}
malloc_increase += size;
@@ -354,7 +385,7 @@ vm_xrealloc(rb_objspace_t *objspace, void *ptr, size_t size)
void *mem;
if (size < 0) {
- rb_raise(rb_eArgError, "negative re-allocation size");
+ rb_raise(rb_eArgError, "negative re-allocation size");
}
if (!ptr) return ruby_xmalloc(size);
if (size == 0) size = 1;
@@ -368,11 +399,11 @@ vm_xrealloc(rb_objspace_t *objspace, void *ptr, size_t size)
RUBY_CRITICAL(mem = realloc(ptr, size));
if (!mem) {
- if (garbage_collect(objspace)) {
- RUBY_CRITICAL(mem = realloc(ptr, size));
- }
- if (!mem) {
- rb_memerror();
+ if (garbage_collect(objspace)) {
+ RUBY_CRITICAL(mem = realloc(ptr, size));
+ }
+ if (!mem) {
+ rb_memerror();
}
}
malloc_increase += size;
@@ -411,7 +442,7 @@ ruby_xmalloc2(size_t n, size_t size)
{
size_t len = size * n;
if (n != 0 && size != len / n) {
- rb_raise(rb_eArgError, "malloc: possible integer overflow");
+ rb_raise(rb_eArgError, "malloc: possible integer overflow");
}
return vm_xmalloc(&rb_objspace, len);
}
@@ -436,7 +467,7 @@ ruby_xrealloc2(void *ptr, size_t n, size_t size)
{
size_t len = size * n;
if (n != 0 && size != len / n) {
- rb_raise(rb_eArgError, "realloc: possible integer overflow");
+ rb_raise(rb_eArgError, "realloc: possible integer overflow");
}
return ruby_xrealloc(ptr, len);
}
@@ -479,7 +510,7 @@ rb_gc_enable(void)
* Disables garbage collection, returning <code>true</code> if garbage
* collection was already disabled.
*
- * GC.disable #=> false
+ * GC.disable #=> false or true
* GC.disable #=> true
*
*/
@@ -494,6 +525,104 @@ rb_gc_disable(void)
return old;
}
+/*
+ * call-seq:
+ * GC.enable_stats => true or false
+ *
+ * Enables garbage collection statistics, returning <code>true</code> if garbage
+ * collection statistics was already enabled.
+ *
+ * GC.enable_stats #=> false or true
+ * GC.enable_stats #=> true
+ *
+ */
+
+VALUE
+rb_gc_enable_stats()
+{
+ int old = gc_statistics;
+ gc_statistics = Qtrue;
+ return old;
+}
+
+/*
+ * call-seq:
+ * GC.disable_stats => true or false
+ *
+ * Disables garbage collection statistics, returning <code>true</code> if garbage
+ * collection statistics was already disabled.
+ *
+ * GC.disable_stats #=> false or true
+ * GC.disable_stats #=> true
+ *
+ */
+
+VALUE
+rb_gc_disable_stats()
+{
+ int old = gc_statistics;
+ gc_statistics = Qfalse;
+ return old;
+}
+
+/*
+ * call-seq:
+ * GC.clear_stats => nil
+ *
+ * Clears garbage collection statistics, returning nil. This resets the number
+ * of collections (GC.collections) and the time used (GC.time) to 0.
+ *
+ * GC.clear_stats #=> nil
+ *
+ */
+
+VALUE
+rb_gc_clear_stats()
+{
+ gc_collections = 0;
+ gc_time = 0;
+ return Qnil;
+}
+
+/*
+ * call-seq:
+ * GC.collections => Integer
+ *
+ * Returns the number of garbage collections performed while GC statistics collection
+ * was enabled.
+ *
+ * GC.collections #=> 35
+ *
+ */
+
+VALUE
+rb_gc_collections()
+{
+ return INT2NUM(gc_collections);
+}
+
+/*
+ * call-seq:
+ * GC.time => Integer
+ *
+ * Returns the time spent during garbage collection while GC statistics collection
+ * was enabled (in micro seconds).
+ *
+ * GC.time #=> 20000
+ *
+ */
+
+VALUE
+rb_gc_time()
+{
+#if HAVE_LONG_LONG
+ return LL2NUM(gc_time);
+#else
+ return LONG2NUM(gc_time);
+#endif
+}
+
+
VALUE rb_mGC;
void
@@ -522,19 +651,19 @@ rb_gc_unregister_address(VALUE *addr)
struct gc_list *tmp = global_List;
if (tmp->varptr == addr) {
- global_List = tmp->next;
- xfree(tmp);
- return;
+ global_List = tmp->next;
+ xfree(tmp);
+ return;
}
while (tmp->next) {
- if (tmp->next->varptr == addr) {
- struct gc_list *t = tmp->next;
+ if (tmp->next->varptr == addr) {
+ struct gc_list *t = tmp->next;
- tmp->next = tmp->next->next;
- xfree(t);
- break;
- }
- tmp = tmp->next;
+ tmp->next = tmp->next->next;
+ xfree(t);
+ break;
+ }
+ tmp = tmp->next;
}
}
@@ -547,17 +676,17 @@ allocate_heaps(rb_objspace_t *objspace, size_t next_heaps_length)
size = next_heaps_length*sizeof(struct heaps_slot);
RUBY_CRITICAL(
- if (heaps_used > 0) {
- p = (struct heaps_slot *)realloc(heaps, size);
- if (p) heaps = p;
- }
- else {
- p = heaps = (struct heaps_slot *)malloc(size);
- }
- );
+ if (heaps_used > 0) {
+ p = (struct heaps_slot *)realloc(heaps, size);
+ if (p) heaps = p;
+ }
+ else {
+ p = heaps = (struct heaps_slot *)malloc(size);
+ }
+ );
if (p == 0) {
- during_gc = 0;
- rb_memerror();
+ during_gc = 0;
+ rb_memerror();
}
heaps_length = next_heaps_length;
}
@@ -568,40 +697,40 @@ assign_heap_slot(rb_objspace_t *objspace)
RVALUE *p, *pend, *membase;
size_t hi, lo, mid;
int objs;
-
+
objs = HEAP_OBJ_LIMIT;
RUBY_CRITICAL(p = (RVALUE*)malloc(HEAP_SIZE));
if (p == 0) {
- during_gc = 0;
- rb_memerror();
+ during_gc = 0;
+ rb_memerror();
}
membase = p;
if ((VALUE)p % sizeof(RVALUE) != 0) {
- p = (RVALUE*)((VALUE)p + sizeof(RVALUE) - ((VALUE)p % sizeof(RVALUE)));
- if ((HEAP_SIZE - HEAP_OBJ_LIMIT * sizeof(RVALUE)) < ((char*)p - (char*)membase)) {
- objs--;
- }
+ p = (RVALUE*)((VALUE)p + sizeof(RVALUE) - ((VALUE)p % sizeof(RVALUE)));
+ if ((HEAP_SIZE - HEAP_OBJ_LIMIT * sizeof(RVALUE)) < ((char*)p - (char*)membase)) {
+ objs--;
+ }
}
lo = 0;
hi = heaps_used;
while (lo < hi) {
- register RVALUE *mid_membase;
- mid = (lo + hi) / 2;
- mid_membase = heaps[mid].membase;
- if (mid_membase < membase) {
- lo = mid + 1;
- }
- else if (mid_membase > membase) {
- hi = mid;
- }
- else {
- rb_bug("same heap slot is allocated: %p at %"PRIuVALUE, membase, (VALUE)mid);
- }
+ register RVALUE *mid_membase;
+ mid = (lo + hi) / 2;
+ mid_membase = heaps[mid].membase;
+ if (mid_membase < membase) {
+ lo = mid + 1;
+ }
+ else if (mid_membase > membase) {
+ hi = mid;
+ }
+ else {
+ rb_bug("same heap slot is allocated: %p at %"PRIuVALUE, membase, (VALUE)mid);
+ }
}
if (hi < heaps_used) {
- MEMMOVE(&heaps[hi+1], &heaps[hi], struct heaps_slot, heaps_used - hi);
+ MEMMOVE(&heaps[hi+1], &heaps[hi], struct heaps_slot, heaps_used - hi);
}
heaps[hi].membase = membase;
heaps[hi].slot = p;
@@ -612,26 +741,169 @@ assign_heap_slot(rb_objspace_t *objspace)
heaps_used++;
while (p < pend) {
- p->as.free.flags = 0;
- p->as.free.next = freelist;
- freelist = p;
- p++;
+ p->as.free.flags = 0;
+ p->as.free.next = freelist;
+ freelist = p;
+ p++;
}
}
+static void set_gc_parameters(rb_objspace_t *objspace)
+{
+ char *gc_stats_ptr, *min_slots_ptr, *free_min_ptr, *heap_slots_incr_ptr,
+ *heap_incr_ptr, *malloc_limit_ptr, *gc_heap_file_ptr, *heap_slots_growth_factor_ptr;
+
+ gc_data_file = stderr;
+
+ gc_stats_ptr = getenv("RUBY_GC_STATS");
+ if (gc_stats_ptr != NULL) {
+ int gc_stats_i = atoi(gc_stats_ptr);
+ if (gc_stats_i > 0) {
+ verbose_gc_stats = Qtrue;
+ }
+ }
+
+ gc_heap_file_ptr = getenv("RUBY_GC_DATA_FILE");
+ if (gc_heap_file_ptr != NULL) {
+ FILE* data_file = fopen(gc_heap_file_ptr, "w");
+ if (data_file != NULL) {
+ gc_data_file = data_file;
+ }
+ else {
+ fprintf(stderr,
+ "can't open gc log file %s for writing, using default\n", gc_heap_file_ptr);
+ }
+ }
+
+ min_slots_ptr = getenv("RUBY_HEAP_MIN_SLOTS");
+ if (min_slots_ptr != NULL) {
+ int min_slots_i = atoi(min_slots_ptr);
+ if (verbose_gc_stats) {
+ fprintf(gc_data_file, "RUBY_HEAP_MIN_SLOTS=%s\n", min_slots_ptr);
+ }
+ if (min_slots_i > 0) {
+ gc_heap_slots = min_slots_i;
+ heap_min_slots = min_slots_i;
+ }
+ }
+
+ free_min_ptr = getenv("RUBY_HEAP_FREE_MIN");
+ if (free_min_ptr != NULL) {
+ int free_min_i = atoi(free_min_ptr);
+ if (verbose_gc_stats) {
+ fprintf(gc_data_file, "RUBY_HEAP_FREE_MIN=%s\n", free_min_ptr);
+ }
+ if (free_min_i > 0) {
+ heap_free_min = free_min_i;
+ }
+ }
+
+ heap_incr_ptr = getenv("RUBY_HEAP_INCREMENT");
+ if (heap_incr_ptr != NULL) {
+ int heap_incr_i = atoi(heap_incr_ptr);
+ if (verbose_gc_stats) {
+ fprintf(gc_data_file, "RUBY_HEAP_INCREMENT=%s\n", heap_incr_ptr);
+ }
+ if (heap_incr_i > 0) {
+ gc_heaps_increment = heap_incr_i;
+ }
+ }
+
+ heap_slots_incr_ptr = getenv("RUBY_HEAP_SLOTS_INCREMENT");
+ if (heap_slots_incr_ptr != NULL) {
+ int heap_slots_incr_i = atoi(heap_slots_incr_ptr);
+ if (verbose_gc_stats) {
+ fprintf(gc_data_file, "RUBY_HEAP_SLOTS_INCREMENT=%s\n", heap_slots_incr_ptr);
+ }
+ if (heap_slots_incr_i > 0) {
+ heap_slots_increment = heap_slots_incr_i;
+ }
+ }
+
+ heap_slots_growth_factor_ptr = getenv("RUBY_HEAP_SLOTS_GROWTH_FACTOR");
+ if (heap_slots_growth_factor_ptr != NULL) {
+ double heap_slots_growth_factor_d = atoi(heap_slots_growth_factor_ptr);
+ if (verbose_gc_stats) {
+ fprintf(gc_data_file, "RUBY_HEAP_SLOTS_GROWTH_FACTOR=%s\n", heap_slots_growth_factor_ptr);
+ }
+ if (heap_slots_growth_factor_d > 0) {
+ heap_slots_growth_factor = heap_slots_growth_factor_d;
+ }
+ }
+
+ malloc_limit_ptr = getenv("RUBY_GC_MALLOC_LIMIT");
+ if (malloc_limit_ptr != NULL) {
+ int malloc_limit_i = atol(malloc_limit_ptr);
+ if (verbose_gc_stats) {
+ fprintf(gc_data_file, "RUBY_GC_MALLOC_LIMIT=%s\n", malloc_limit_ptr);
+ }
+ if (malloc_limit_i > 0) {
+ initial_malloc_limit = malloc_limit_i;
+ }
+ }
+}
+
+/*
+ * call-seq:
+ * GC.dump => nil
+ *
+ * dumps information about the current GC data structures to the GC log file
+ *
+ * GC.dump #=> nil
+ *
+ */
+
+VALUE
+rb_gc_dump()
+{
+ int i;
+ rb_objspace_t *objspace = &rb_objspace;
+
+ for (i = 0; i < heaps_used; i++) {
+ int heap_size = heaps[i].limit;
+ fprintf(gc_data_file, "HEAP[%2d]: size=%7d\n", i, heap_size);
+ }
+
+ return Qnil;
+}
+
+/*
+ * call-seq:
+ * GC.log String => String
+ *
+ * Logs string to the GC data file and returns it.
+ *
+ * GC.log "manual GC call" #=> "manual GC call"
+ *
+ */
+
+VALUE
+rb_gc_log(VALUE self, VALUE original_str)
+{
+ if (original_str == Qnil) {
+ fprintf(gc_data_file, "\n");
+ }
+ else {
+ VALUE str = StringValue(original_str);
+ char *p = RSTRING_PTR(str);
+ fprintf(gc_data_file, "%s\n", p);
+ }
+ return original_str;
+}
+
static void
init_heap(rb_objspace_t *objspace)
{
size_t add, i;
- add = HEAP_MIN_SLOTS / HEAP_OBJ_LIMIT;
+ add = heap_min_slots / HEAP_OBJ_LIMIT;
if ((heaps_used + add) > heaps_length) {
- allocate_heaps(objspace, heaps_used + add);
+ allocate_heaps(objspace, heaps_used + add);
}
for (i = 0; i < add; i++) {
- assign_heap_slot(objspace);
+ assign_heap_slot(objspace);
}
heaps_inc = 0;
}
@@ -640,11 +912,11 @@ init_heap(rb_objspace_t *objspace)
static void
set_heaps_increment(rb_objspace_t *objspace)
{
- size_t next_heaps_length = heaps_used * 1.8;
+ size_t next_heaps_length = heaps_used * heap_slots_growth_factor;
heaps_inc = next_heaps_length - heaps_used;
if (next_heaps_length > heaps_length) {
- allocate_heaps(objspace, next_heaps_length);
+ allocate_heaps(objspace, next_heaps_length);
}
}
@@ -652,9 +924,9 @@ static int
heaps_increment(rb_objspace_t *objspace)
{
if (heaps_inc > 0) {
- assign_heap_slot(objspace);
- heaps_inc--;
- return Qtrue;
+ assign_heap_slot(objspace);
+ heaps_inc--;
+ return Qtrue;
}
return Qfalse;
}
@@ -665,12 +937,12 @@ static VALUE
rb_newobj_from_heap(rb_objspace_t *objspace)
{
VALUE obj;
-
+
if ((ruby_gc_stress && !ruby_disable_gc_stress) || !freelist) {
- if (!heaps_increment(objspace) && !garbage_collect(objspace)) {
- during_gc = 0;
- rb_memerror();
- }
+ if (!heaps_increment(objspace) && !garbage_collect(objspace)) {
+ during_gc = 0;
+ rb_memerror();
+ }
}
obj = (VALUE)freelist;
@@ -695,10 +967,10 @@ rb_fill_value_cache(rb_thread_t *th)
/* LOCK */
for (i=0; i<RUBY_VM_VALUE_CACHE_SIZE; i++) {
- VALUE v = rb_newobj_from_heap(objspace);
+ VALUE v = rb_newobj_from_heap(objspace);
- th->value_cache[i] = v;
- RBASIC(v)->flags = FL_MARK;
+ th->value_cache[i] = v;
+ RBASIC(v)->flags = FL_MARK;
}
th->value_cache_ptr = &th->value_cache[0];
rv = rb_newobj_from_heap(objspace);
@@ -713,7 +985,7 @@ rb_during_gc(void)
rb_objspace_t *objspace = &rb_objspace;
return during_gc;
}
-
+
VALUE
rb_newobj(void)
{
@@ -730,23 +1002,23 @@ rb_newobj(void)
#endif
if (during_gc) {
- dont_gc = 1;
- during_gc = 0;
- rb_bug("object allocation during garbage collection phase");
+ dont_gc = 1;
+ during_gc = 0;
+ rb_bug("object allocation during garbage collection phase");
}
#if USE_VALUE_CACHE
if (v) {
- RBASIC(v)->flags = 0;
- th->value_cache_ptr++;
+ RBASIC(v)->flags = 0;
+ th->value_cache_ptr++;
}
else {
- v = rb_fill_value_cache(th);
+ v = rb_fill_value_cache(th);
}
#if defined(GC_DEBUG)
printf("cache index: %d, v: %p, th: %p\n",
- th->value_cache_ptr - th->value_cache, v, th);
+ th->value_cache_ptr - th->value_cache, v, th);
#endif
return v;
#else
@@ -860,14 +1132,14 @@ gc_mark_all(rb_objspace_t *objspace)
init_mark_stack(objspace);
for (i = 0; i < heaps_used; i++) {
- p = heaps[i].slot; pend = p + heaps[i].limit;
- while (p < pend) {
- if ((p->as.basic.flags & FL_MARK) &&
- (p->as.basic.flags != FL_MARK)) {
- gc_mark_children(objspace, (VALUE)p, 0);
- }
- p++;
- }
+ p = heaps[i].slot; pend = p + heaps[i].limit;
+ while (p < pend) {
+ if ((p->as.basic.flags & FL_MARK) &&
+ (p->as.basic.flags != FL_MARK)) {
+ gc_mark_children(objspace, (VALUE)p, 0);
+ }
+ p++;
+ }
}
}
@@ -882,8 +1154,8 @@ gc_mark_rest(rb_objspace_t *objspace)
init_mark_stack(objspace);
while (p != tmp_arry) {
- p--;
- gc_mark_children(objspace, *p, 0);
+ p--;
+ gc_mark_children(objspace, *p, 0);
}
}
@@ -901,16 +1173,16 @@ is_pointer_to_heap(rb_objspace_t *objspace, void *ptr)
lo = 0;
hi = heaps_used;
while (lo < hi) {
- mid = (lo + hi) / 2;
- heap = &heaps[mid];
- if (heap->slot <= p) {
- if (p < heap->slot + heap->limit)
- return Qtrue;
- lo = mid + 1;
- }
- else {
- hi = mid;
- }
+ mid = (lo + hi) / 2;
+ heap = &heaps[mid];
+ if (heap->slot <= p) {
+ if (p < heap->slot + heap->limit)
+ return Qtrue;
+ lo = mid + 1;
+ }
+ else {
+ hi = mid;
+ }
}
return Qfalse;
}
@@ -922,10 +1194,10 @@ mark_locations_array(rb_objspace_t *objspace, register VALUE *x, register long n
while (n--) {
v = *x;
VALGRIND_MAKE_MEM_DEFINED(&v, sizeof(v));
- if (is_pointer_to_heap(objspace, (void *)v)) {
- gc_mark(objspace, v, 0);
- }
- x++;
+ if (is_pointer_to_heap(objspace, (void *)v)) {
+ gc_mark(objspace, v, 0);
+ }
+ x++;
}
}
@@ -1029,7 +1301,7 @@ void
rb_gc_mark_maybe(VALUE obj)
{
if (is_pointer_to_heap(&rb_objspace, (void *)obj)) {
- gc_mark(&rb_objspace, obj, 0);
+ gc_mark(&rb_objspace, obj, 0);
}
}
@@ -1047,16 +1319,16 @@ gc_mark(rb_objspace_t *objspace, VALUE ptr, int lev)
obj->as.basic.flags |= FL_MARK;
if (lev > GC_LEVEL_MAX || (lev == 0 && ruby_stack_check())) {
- if (!mark_stack_overflow) {
- if (mark_stack_ptr - mark_stack < MARK_STACK_MAX) {
- *mark_stack_ptr = ptr;
- mark_stack_ptr++;
- }
- else {
- mark_stack_overflow = 1;
- }
- }
- return;
+ if (!mark_stack_overflow) {
+ if (mark_stack_ptr - mark_stack < MARK_STACK_MAX) {
+ *mark_stack_ptr = ptr;
+ mark_stack_ptr++;
+ }
+ else {
+ mark_stack_overflow = 1;
+ }
+ }
+ return;
}
gc_mark_children(objspace, ptr, lev+1);
}
@@ -1072,7 +1344,7 @@ gc_mark_children(rb_objspace_t *objspace, VALUE ptr, int lev)
{
register RVALUE *obj = RANY(ptr);
- goto marking; /* skip */
+ goto marking; /* skip */
again:
obj = RANY(ptr);
@@ -1083,149 +1355,149 @@ gc_mark_children(rb_objspace_t *objspace, VALUE ptr, int lev)
marking:
if (FL_TEST(obj, FL_EXIVAR)) {
- rb_mark_generic_ivar(ptr);
+ rb_mark_generic_ivar(ptr);
}
switch (BUILTIN_TYPE(obj)) {
case T_NIL:
case T_FIXNUM:
- rb_bug("rb_gc_mark() called for broken object");
- break;
+ rb_bug("rb_gc_mark() called for broken object");
+ break;
case T_NODE:
- switch (nd_type(obj)) {
- case NODE_IF: /* 1,2,3 */
- case NODE_FOR:
- case NODE_ITER:
- case NODE_WHEN:
- case NODE_MASGN:
- case NODE_RESCUE:
- case NODE_RESBODY:
- case NODE_CLASS:
- case NODE_BLOCK_PASS:
- gc_mark(objspace, (VALUE)obj->as.node.u2.node, lev);
- /* fall through */
- case NODE_BLOCK: /* 1,3 */
- case NODE_OPTBLOCK:
- case NODE_ARRAY:
- case NODE_DSTR:
- case NODE_DXSTR:
- case NODE_DREGX:
- case NODE_DREGX_ONCE:
- case NODE_ENSURE:
- case NODE_CALL:
- case NODE_DEFS:
- case NODE_OP_ASGN1:
- case NODE_ARGS:
- gc_mark(objspace, (VALUE)obj->as.node.u1.node, lev);
- /* fall through */
- case NODE_SUPER: /* 3 */
- case NODE_FCALL:
- case NODE_DEFN:
- case NODE_ARGS_AUX:
- ptr = (VALUE)obj->as.node.u3.node;
- goto again;
-
- case NODE_METHOD: /* 1,2 */
- case NODE_WHILE:
- case NODE_UNTIL:
- case NODE_AND:
- case NODE_OR:
- case NODE_CASE:
- case NODE_SCLASS: