From 8ac4f421e13adc2216b4056ab241136066548e7e Mon Sep 17 00:00:00 2001 From: ko1 Date: Thu, 17 Oct 2013 07:57:03 +0000 Subject: * gc.c, internal.h: add new internal memory mangement functions. * void *ruby_xsizedrealloc(void *ptr, size_t new_size, size_t old_size) * void ruby_xsizedfree(void *x, size_t size) These functions acccept additional size parameter to calculate more accurate malloc_increase parameter which control GC timing. [Feature #8985] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43330 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- ChangeLog | 9 ++++++++ gc.c | 73 ++++++++++++++++++++++++++++++++++++++++++-------------------- internal.h | 3 +++ 3 files changed, 62 insertions(+), 23 deletions(-) diff --git a/ChangeLog b/ChangeLog index 56e9159f8b..d396137fb7 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,12 @@ +Thu Oct 17 16:53:30 2013 Koichi Sasada + + * gc.c, internal.h: add new internal memory mangement functions. + * void *ruby_xsizedrealloc(void *ptr, size_t new_size, size_t old_size) + * void ruby_xsizedfree(void *x, size_t size) + These functions acccept additional size parameter to calculate more + accurate malloc_increase parameter which control GC timing. + [Feature #8985] + Thu Oct 17 14:21:34 2013 Nobuyoshi Nakada * win32/file.c (rb_file_expand_path_internal): fix memory leaks at diff --git a/gc.c b/gc.c index 4289b8af6e..819d93fcf5 100644 --- a/gc.c +++ b/gc.c @@ -4751,7 +4751,7 @@ rb_objspace_reachable_objects_from_root(void (func)(const char *category, VALUE, ------------------------ Extended allocator ------------------------ */ -static void vm_xfree(rb_objspace_t *objspace, void *ptr); +static void vm_xfree(rb_objspace_t *objspace, void *ptr, size_t size); static void * negative_size_allocation_error_with_gvl(void *ptr) @@ -4871,13 +4871,27 @@ aligned_free(void *ptr) } static void -vm_malloc_increase(rb_objspace_t *objspace, size_t size, int do_gc) +vm_malloc_increase(rb_objspace_t *objspace, size_t new_size, size_t old_size, int do_gc) { - ATOMIC_SIZE_ADD(malloc_increase, size); + if (new_size > old_size) { + ATOMIC_SIZE_ADD(malloc_increase, new_size - old_size); + } + else { + size_t sub = old_size - new_size; + if (sub > 0) { + if (malloc_increase > sub) { + ATOMIC_SIZE_SUB(malloc_increase, sub); + } + else { + malloc_increase = 0; + } + } + } - if ((ruby_gc_stress && !ruby_disable_gc_stress) || - (do_gc && (malloc_increase > malloc_limit))) { - garbage_collect_with_gvl(objspace, 0, 0, GPR_FLAG_MALLOC); + if (do_gc) { + if ((ruby_gc_stress && !ruby_disable_gc_stress) || (malloc_increase > malloc_limit)) { + garbage_collect_with_gvl(objspace, 0, 0, GPR_FLAG_MALLOC); + } } } @@ -4893,7 +4907,7 @@ vm_malloc_prepare(rb_objspace_t *objspace, size_t size) size += sizeof(size_t); #endif - vm_malloc_increase(objspace, size, TRUE); + vm_malloc_increase(objspace, size, 0, TRUE); return size; } @@ -4930,41 +4944,41 @@ vm_xmalloc(rb_objspace_t *objspace, size_t size) } static void * -vm_xrealloc(rb_objspace_t *objspace, void *ptr, size_t size) +vm_xrealloc(rb_objspace_t *objspace, void *ptr, size_t new_size, size_t old_size) { void *mem; #if CALC_EXACT_MALLOC_SIZE - size_t oldsize; + size_t cem_oldsize; #endif - if ((ssize_t)size < 0) { + if ((ssize_t)new_size < 0) { negative_size_allocation_error("negative re-allocation size"); } - if (!ptr) return vm_xmalloc(objspace, size); + if (!ptr) return vm_xmalloc(objspace, new_size); /* * The behavior of realloc(ptr, 0) is implementation defined. * Therefore we don't use realloc(ptr, 0) for portability reason. * see http://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_400.htm */ - if (size == 0) { - vm_xfree(objspace, ptr); + if (new_size == 0) { + vm_xfree(objspace, ptr, old_size); return 0; } - vm_malloc_increase(objspace, size, FALSE); + vm_malloc_increase(objspace, new_size, old_size, FALSE); #if CALC_EXACT_MALLOC_SIZE size += sizeof(size_t); ptr = (size_t *)ptr - 1; - oldsize = ((size_t *)ptr)[0]; + cem_oldsize = ((size_t *)ptr)[0]; #endif - TRY_WITH_GC(mem = realloc(ptr, size)); + TRY_WITH_GC(mem = realloc(ptr, new_size)); #if CALC_EXACT_MALLOC_SIZE - ATOMIC_SIZE_ADD(objspace->malloc_params.allocated_size, size - oldsize); + ATOMIC_SIZE_ADD(objspace->malloc_params.allocated_size, size - cem_oldsize); ((size_t *)mem)[0] = size; mem = (size_t *)mem + 1; #endif @@ -4973,7 +4987,7 @@ vm_xrealloc(rb_objspace_t *objspace, void *ptr, size_t size) } static void -vm_xfree(rb_objspace_t *objspace, void *ptr) +vm_xfree(rb_objspace_t *objspace, void *ptr, size_t old_size) { #if CALC_EXACT_MALLOC_SIZE size_t size; @@ -4984,6 +4998,7 @@ vm_xfree(rb_objspace_t *objspace, void *ptr) ATOMIC_SIZE_DEC(objspace->malloc_params.allocations); } #endif + vm_malloc_increase(objspace, 0, old_size, FALSE); free(ptr); } @@ -5030,9 +5045,15 @@ ruby_xcalloc(size_t n, size_t size) } void * -ruby_xrealloc(void *ptr, size_t size) +ruby_xsizedrealloc(void *ptr, size_t new_size, size_t old_size) { - return vm_xrealloc(&rb_objspace, ptr, size); + return vm_xrealloc(&rb_objspace, ptr, new_size, old_size); +} + +void * +ruby_xrealloc(void *ptr, size_t new_size) +{ + return ruby_xsizedrealloc(ptr, new_size, 0); } void * @@ -5046,12 +5067,18 @@ ruby_xrealloc2(void *ptr, size_t n, size_t size) } void -ruby_xfree(void *x) +ruby_xsizedfree(void *x, size_t size) { - if (x) - vm_xfree(&rb_objspace, x); + if (x) { + vm_xfree(&rb_objspace, x, size); + } } +void +ruby_xfree(void *x) +{ + ruby_xsizedfree(x, 0); +} /* Mimic ruby_xmalloc, but need not rb_objspace. * should return pointer suitable for ruby_xfree diff --git a/internal.h b/internal.h index c1890961c3..b8c0df6e17 100644 --- a/internal.h +++ b/internal.h @@ -432,6 +432,9 @@ void *ruby_mimmalloc(size_t size); void rb_objspace_set_event_hook(const rb_event_flag_t event); void rb_gc_writebarrier_remember_promoted(VALUE obj); +void *ruby_xsizedrealloc(void *ptr, size_t new_size, size_t old_size) RUBY_ATTR_ALLOC_SIZE((2));; +void ruby_xsizedfree(void *x, size_t size); + /* hash.c */ struct st_table *rb_hash_tbl_raw(VALUE hash); #define RHASH_TBL_RAW(h) rb_hash_tbl_raw(h) -- cgit v1.2.3