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f9951352f6
Avoids copies from being made, since the string is only ever used for lookup, the data is never transfered anywhere. Ideally, we'd use a std::string_view here, but devices is a std::unordered_map, not a std::map, so we can't use heterogenous lookup here.
63 lines
1.8 KiB
C++
63 lines
1.8 KiB
C++
// Copyright 2018 yuzu emulator team
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <memory>
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#include <unordered_map>
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#include <vector>
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#include "common/common_types.h"
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#include "core/hle/service/service.h"
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namespace Service::Nvidia {
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namespace Devices {
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class nvdevice;
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}
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struct IoctlFence {
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u32 id;
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u32 value;
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};
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static_assert(sizeof(IoctlFence) == 8, "IoctlFence has wrong size");
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class Module final {
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public:
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Module();
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~Module() = default;
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/// Returns a pointer to one of the available devices, identified by its name.
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template <typename T>
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std::shared_ptr<T> GetDevice(const std::string& name) {
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auto itr = devices.find(name);
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if (itr == devices.end())
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return nullptr;
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return std::static_pointer_cast<T>(itr->second);
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}
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/// Opens a device node and returns a file descriptor to it.
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u32 Open(const std::string& device_name);
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/// Sends an ioctl command to the specified file descriptor.
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u32 Ioctl(u32 fd, u32 command, const std::vector<u8>& input, std::vector<u8>& output);
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/// Closes a device file descriptor and returns operation success.
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ResultCode Close(u32 fd);
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private:
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/// Id to use for the next open file descriptor.
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u32 next_fd = 1;
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/// Mapping of file descriptors to the devices they reference.
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std::unordered_map<u32, std::shared_ptr<Devices::nvdevice>> open_files;
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/// Mapping of device node names to their implementation.
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std::unordered_map<std::string, std::shared_ptr<Devices::nvdevice>> devices;
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};
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/// Registers all NVDRV services with the specified service manager.
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void InstallInterfaces(SM::ServiceManager& service_manager);
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extern std::weak_ptr<Module> nvdrv;
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} // namespace Service::Nvidia
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