- if (this->clear_refs_fd_ < 0) {
- this->clear_refs_fd_ = open_process_file(pid_, "clear_refs", O_WRONLY|O_CLOEXEC);
- if (this->clear_refs_fd_ < 0)
- xbt_die("Could not open clear_refs file for soft-dirty tracking. Run as root?");
+ if (ignored_heap_.empty()) {
+ ignored_heap_.push_back(std::move(region));
+ return;
+ }
+
+ typedef std::vector<IgnoredHeapRegion>::size_type size_type;
+
+ size_type start = 0;
+ size_type end = ignored_heap_.size() - 1;
+
+ // Binary search the position of insertion:
+ size_type cursor;
+ while (start <= end) {
+ cursor = start + (end - start) / 2;
+ auto& current_region = ignored_heap_[cursor];
+ if (current_region.address == region.address)
+ return;
+ else if (current_region.address < region.address)
+ start = cursor + 1;
+ else if (cursor != 0)
+ end = cursor - 1;
+ // Avoid underflow:
+ else
+ break;
+ }
+
+ // Insert it mc_heap_ignore_region_t:
+ if (ignored_heap_[cursor].address < region.address)
+ ++cursor;
+ ignored_heap_.insert( ignored_heap_.begin() + cursor, region);
+}
+
+void Process::unignore_heap(void *address, size_t size)
+{
+ typedef std::vector<IgnoredHeapRegion>::size_type size_type;
+
+ size_type start = 0;
+ size_type end = ignored_heap_.size() - 1;
+
+ // Binary search:
+ size_type cursor;
+ while (start <= end) {
+ cursor = (start + end) / 2;
+ auto& region = ignored_heap_[cursor];
+ if (region.address == address) {
+ ignored_heap_.erase(ignored_heap_.begin() + cursor);
+ return;
+ } else if (region.address < address)
+ start = cursor + 1;
+ else if ((char *) region.address <= ((char *) address + size)) {
+ ignored_heap_.erase(ignored_heap_.begin() + cursor);
+ return;
+ } else if (cursor != 0)
+ end = cursor - 1;
+ // Avoid underflow:
+ else
+ break;