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src/share/vm/gc/g1/g1AllocRegion.cpp
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rev 8978 : imported patch remove_err_msg
rev 8979 : [mq]: vmerr_static
*** 89,117 ****
"post-condition");
return result;
}
size_t G1AllocRegion::retire(bool fill_up) {
! assert(_alloc_region != NULL, ar_ext_msg(this, "not initialized properly"));
size_t result = 0;
trace("retiring");
HeapRegion* alloc_region = _alloc_region;
if (alloc_region != _dummy_region) {
// We never have to check whether the active region is empty or not,
// and potentially free it if it is, given that it's guaranteed that
// it will never be empty.
assert(!alloc_region->is_empty(),
! ar_ext_msg(this, "the alloc region should never be empty"));
if (fill_up) {
result = fill_up_remaining_space(alloc_region, _bot_updates);
}
assert(alloc_region->used() >= _used_bytes_before,
! ar_ext_msg(this, "invariant"));
size_t allocated_bytes = alloc_region->used() - _used_bytes_before;
retire_region(alloc_region, allocated_bytes);
_used_bytes_before = 0;
_alloc_region = _dummy_region;
}
--- 89,117 ----
"post-condition");
return result;
}
size_t G1AllocRegion::retire(bool fill_up) {
! assert(_alloc_region != NULL, G1_ALLOC_REGION_MSG("not initialized properly"));
size_t result = 0;
trace("retiring");
HeapRegion* alloc_region = _alloc_region;
if (alloc_region != _dummy_region) {
// We never have to check whether the active region is empty or not,
// and potentially free it if it is, given that it's guaranteed that
// it will never be empty.
assert(!alloc_region->is_empty(),
! G1_ALLOC_REGION_MSG("the alloc region should never be empty"));
if (fill_up) {
result = fill_up_remaining_space(alloc_region, _bot_updates);
}
assert(alloc_region->used() >= _used_bytes_before,
! G1_ALLOC_REGION_MSG("invariant"));
size_t allocated_bytes = alloc_region->used() - _used_bytes_before;
retire_region(alloc_region, allocated_bytes);
_used_bytes_before = 0;
_alloc_region = _dummy_region;
}
*** 120,140 ****
return result;
}
HeapWord* G1AllocRegion::new_alloc_region_and_allocate(size_t word_size,
bool force) {
! assert(_alloc_region == _dummy_region, ar_ext_msg(this, "pre-condition"));
! assert(_used_bytes_before == 0, ar_ext_msg(this, "pre-condition"));
trace("attempting region allocation");
HeapRegion* new_alloc_region = allocate_new_region(word_size, force);
if (new_alloc_region != NULL) {
new_alloc_region->reset_pre_dummy_top();
// Need to do this before the allocation
_used_bytes_before = new_alloc_region->used();
HeapWord* result = allocate(new_alloc_region, word_size, _bot_updates);
! assert(result != NULL, ar_ext_msg(this, "the allocation should succeeded"));
OrderAccess::storestore();
// Note that we first perform the allocation and then we store the
// region in _alloc_region. This is the reason why an active region
// can never be empty.
--- 120,140 ----
return result;
}
HeapWord* G1AllocRegion::new_alloc_region_and_allocate(size_t word_size,
bool force) {
! assert(_alloc_region == _dummy_region, G1_ALLOC_REGION_MSG("pre-condition"));
! assert(_used_bytes_before == 0, G1_ALLOC_REGION_MSG("pre-condition"));
trace("attempting region allocation");
HeapRegion* new_alloc_region = allocate_new_region(word_size, force);
if (new_alloc_region != NULL) {
new_alloc_region->reset_pre_dummy_top();
// Need to do this before the allocation
_used_bytes_before = new_alloc_region->used();
HeapWord* result = allocate(new_alloc_region, word_size, _bot_updates);
! assert(result != NULL, G1_ALLOC_REGION_MSG("the allocation should succeeded"));
OrderAccess::storestore();
// Note that we first perform the allocation and then we store the
// region in _alloc_region. This is the reason why an active region
// can never be empty.
*** 146,180 ****
return NULL;
}
ShouldNotReachHere();
}
- void G1AllocRegion::fill_in_ext_msg(ar_ext_msg* msg, const char* message) {
- msg->append("[%s] %s c: %u b: %s r: " PTR_FORMAT " u: " SIZE_FORMAT,
- _name, message, _count, BOOL_TO_STR(_bot_updates),
- p2i(_alloc_region), _used_bytes_before);
- }
-
void G1AllocRegion::init() {
trace("initializing");
assert(_alloc_region == NULL && _used_bytes_before == 0,
! ar_ext_msg(this, "pre-condition"));
! assert(_dummy_region != NULL, ar_ext_msg(this, "should have been set"));
_alloc_region = _dummy_region;
_count = 0;
trace("initialized");
}
void G1AllocRegion::set(HeapRegion* alloc_region) {
trace("setting");
// We explicitly check that the region is not empty to make sure we
// maintain the "the alloc region cannot be empty" invariant.
assert(alloc_region != NULL && !alloc_region->is_empty(),
! ar_ext_msg(this, "pre-condition"));
assert(_alloc_region == _dummy_region &&
_used_bytes_before == 0 && _count == 0,
! ar_ext_msg(this, "pre-condition"));
_used_bytes_before = alloc_region->used();
_alloc_region = alloc_region;
_count += 1;
trace("set");
--- 146,174 ----
return NULL;
}
ShouldNotReachHere();
}
void G1AllocRegion::init() {
trace("initializing");
assert(_alloc_region == NULL && _used_bytes_before == 0,
! G1_ALLOC_REGION_MSG("pre-condition"));
! assert(_dummy_region != NULL, G1_ALLOC_REGION_MSG("should have been set"));
_alloc_region = _dummy_region;
_count = 0;
trace("initialized");
}
void G1AllocRegion::set(HeapRegion* alloc_region) {
trace("setting");
// We explicitly check that the region is not empty to make sure we
// maintain the "the alloc region cannot be empty" invariant.
assert(alloc_region != NULL && !alloc_region->is_empty(),
! G1_ALLOC_REGION_MSG("pre-condition"));
assert(_alloc_region == _dummy_region &&
_used_bytes_before == 0 && _count == 0,
! G1_ALLOC_REGION_MSG("pre-condition"));
_used_bytes_before = alloc_region->used();
_alloc_region = alloc_region;
_count += 1;
trace("set");
*** 183,193 ****
void G1AllocRegion::update_alloc_region(HeapRegion* alloc_region) {
trace("update");
// We explicitly check that the region is not empty to make sure we
// maintain the "the alloc region cannot be empty" invariant.
assert(alloc_region != NULL && !alloc_region->is_empty(),
! ar_ext_msg(this, "pre-condition"));
_alloc_region = alloc_region;
_alloc_region->set_allocation_context(allocation_context());
_count += 1;
trace("updated");
--- 177,187 ----
void G1AllocRegion::update_alloc_region(HeapRegion* alloc_region) {
trace("update");
// We explicitly check that the region is not empty to make sure we
// maintain the "the alloc region cannot be empty" invariant.
assert(alloc_region != NULL && !alloc_region->is_empty(),
! G1_ALLOC_REGION_MSG("pre-condition"));
_alloc_region = alloc_region;
_alloc_region->set_allocation_context(allocation_context());
_count += 1;
trace("updated");
*** 196,206 ****
HeapRegion* G1AllocRegion::release() {
trace("releasing");
HeapRegion* alloc_region = _alloc_region;
retire(false /* fill_up */);
assert(_alloc_region == _dummy_region,
! ar_ext_msg(this, "post-condition of retire()"));
_alloc_region = NULL;
trace("released");
return (alloc_region == _dummy_region) ? NULL : alloc_region;
}
--- 190,200 ----
HeapRegion* G1AllocRegion::release() {
trace("releasing");
HeapRegion* alloc_region = _alloc_region;
retire(false /* fill_up */);
assert(_alloc_region == _dummy_region,
! G1_ALLOC_REGION_MSG("post-condition of retire()"));
_alloc_region = NULL;
trace("released");
return (alloc_region == _dummy_region) ? NULL : alloc_region;
}
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