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Optimize module_manager::get_module

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This commit is contained in:
Igor Pissolati
2025-10-22 17:21:34 -03:00
parent 46b97fd91c
commit 83aa3b663a
3 changed files with 11 additions and 1 deletions
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2
src/windows-emulator/module/mapped_module.hpp
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@@ -46,7 +46,7 @@ struct mapped_module
bool contains(const uint64_t address) const
{
return address >= this->image_base && address < (this->image_base + this->size_of_image);
return (address - this->image_base) < this->size_of_image;
}
uint64_t find_export(const std::string_view export_name) const

3
src/windows-emulator/module/module_manager.cpp
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@@ -156,6 +156,7 @@ mapped_module* module_manager::map_memory_module(uint64_t base_address, uint64_t
const auto image_base = mod.image_base;
const auto entry = this->modules_.try_emplace(image_base, std::move(mod));
this->last_module_cache_ = this->modules_.end();
this->callbacks_->on_module_load(entry.first->second);
return &entry.first->second;
}
@@ -183,6 +184,7 @@ void module_manager::serialize(utils::buffer_serializer& buffer) const
void module_manager::deserialize(utils::buffer_deserializer& buffer)
{
buffer.read_map(this->modules_);
this->last_module_cache_ = this->modules_.end();
const auto executable_base = buffer.read<uint64_t>();
const auto ntdll_base = buffer.read<uint64_t>();
@@ -209,6 +211,7 @@ bool module_manager::unmap(const uint64_t address)
this->callbacks_->on_module_unload(mod->second);
unmap_module(*this->memory_, mod->second);
this->modules_.erase(mod);
this->last_module_cache_ = this->modules_.end();
return true;
}

7
src/windows-emulator/module/module_manager.hpp
View File

@@ -83,9 +83,15 @@ class module_manager
callbacks* callbacks_{};
module_map modules_{};
mutable module_map::iterator last_module_cache_{modules_.end()};
module_map::iterator get_module(const uint64_t address)
{
if (last_module_cache_ != this->modules_.end() && last_module_cache_->second.contains(address))
{
return last_module_cache_;
}
if (this->modules_.empty())
{
return this->modules_.end();
@@ -101,6 +107,7 @@ class module_manager
if (upper_bound->second.contains(address))
{
last_module_cache_ = upper_bound;
return upper_bound;
}