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[Core] BaseHeap::QueryBaseAndSize

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This commit is contained in:
DrChat 2018-02-10 21:58:44 -06:00
parent 44e03762f6
commit d0460122f4
2 changed files with 17 additions and 0 deletions
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14
src/xenia/memory.cc
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@ -1147,6 +1147,20 @@ bool BaseHeap::QuerySize(uint32_t address, uint32_t* out_size) {
return true;
}
bool BaseHeap::QueryBaseAndSize(uint32_t* in_out_address, uint32_t* out_size) {
uint32_t page_number = (*in_out_address - heap_base_) / page_size_;
if (page_number > page_table_.size()) {
XELOGE("BaseHeap::QuerySize base page out of range");
*out_size = 0;
return false;
}
auto global_lock = global_critical_region_.Acquire();
auto page_entry = page_table_[page_number];
*in_out_address = (page_entry.base_address * page_size_);
*out_size = (page_entry.region_page_count * page_size_);
return true;
}
bool BaseHeap::QueryProtect(uint32_t address, uint32_t* out_protect) {
uint32_t page_number = (address - heap_base_) / page_size_;
if (page_number > page_table_.size()) {

3
src/xenia/memory.h
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@ -144,6 +144,9 @@ class BaseHeap {
// Queries the size of the region containing the given address.
bool QuerySize(uint32_t address, uint32_t* out_size);
// Queries the base and size of a region containing the given address.
bool QueryBaseAndSize(uint32_t* in_out_address, uint32_t* out_size);
// Queries the current protection mode of the region containing the given
// address.
bool QueryProtect(uint32_t address, uint32_t* out_protect);