1
0
Fork 0
forked from suyu/suyu
suyu/src/core/hle/kernel/resource_limit.h
Lioncash 5d46038c5c kernel/resource_limit: Clean up interface
Cleans out the citra/3DS-specific implementation details that don't
apply to the Switch. Sets the stage for implementing ResourceLimit
instances properly.

While we're at it, remove the erroneous checks within CreateThread() and
SetThreadPriority(). While these are indeed checked in some capacity,
they are not checked via a ResourceLimit instance.

In the process of moving out Citra-specifics, this also replaces the
system ResourceLimit instance's values with ones from the Switch.
2018-11-19 18:16:39 -05:00

99 lines
2.7 KiB
C++

// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include "common/common_types.h"
#include "core/hle/kernel/object.h"
union ResultCode;
namespace Kernel {
class KernelCore;
enum class ResourceType {
PhysicalMemory,
Threads,
Events,
TransferMemory,
Sessions,
// Used as a count, not an actual type.
ResourceTypeCount
};
class ResourceLimit final : public Object {
public:
/**
* Creates a resource limit object.
*/
static SharedPtr<ResourceLimit> Create(KernelCore& kernel, std::string name = "Unknown");
std::string GetTypeName() const override {
return "ResourceLimit";
}
std::string GetName() const override {
return name;
}
static const HandleType HANDLE_TYPE = HandleType::ResourceLimit;
HandleType GetHandleType() const override {
return HANDLE_TYPE;
}
/**
* Gets the current value for the specified resource.
* @param resource Requested resource type
* @returns The current value of the resource type
*/
s64 GetCurrentResourceValue(ResourceType resource) const;
/**
* Gets the max value for the specified resource.
* @param resource Requested resource type
* @returns The max value of the resource type
*/
s64 GetMaxResourceValue(ResourceType resource) const;
/**
* Sets the limit value for a given resource type.
*
* @param resource The resource type to apply the limit to.
* @param value The limit to apply to the given resource type.
*
* @return A result code indicating if setting the limit value
* was successful or not.
*
* @note The supplied limit value *must* be greater than or equal to
* the current resource value for the given resource type,
* otherwise ERR_INVALID_STATE will be returned.
*/
ResultCode SetLimitValue(ResourceType resource, s64 value);
private:
explicit ResourceLimit(KernelCore& kernel);
~ResourceLimit() override;
// TODO(Subv): Increment resource limit current values in their respective Kernel::T::Create
// functions
//
// Currently we have no way of distinguishing if a Create was called by the running application,
// or by a service module. Approach this once we have separated the service modules into their
// own processes
using ResourceArray =
std::array<s64, static_cast<std::size_t>(ResourceType::ResourceTypeCount)>;
/// Maximum values a resource type may reach.
ResourceArray limits{};
/// Current resource limit values.
ResourceArray values{};
/// Name of resource limit object.
std::string name;
};
} // namespace Kernel