88 lines
2.7 KiB
C++
88 lines
2.7 KiB
C++
// Copyright 2014 Citra Emulator Project
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// Licensed under GPLv2
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// Refer to the license.txt file included.
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#include "common/common_types.h"
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#include "core/mem_map.h"
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#include "core/hle/hle.h"
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#include "core/hle/kernel/address_arbiter.h"
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#include "core/hle/kernel/thread.h"
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// Kernel namespace
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namespace Kernel {
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class AddressArbiter : public Object {
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public:
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const char* GetTypeName() const { return "Arbiter"; }
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const char* GetName() const { return name.c_str(); }
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static Kernel::HandleType GetStaticHandleType() { return HandleType::AddressArbiter; }
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Kernel::HandleType GetHandleType() const { return HandleType::AddressArbiter; }
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std::string name; ///< Name of address arbiter object (optional)
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/**
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* Wait for kernel object to synchronize
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* @param wait Boolean wait set if current thread should wait as a result of sync operation
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* @return Result of operation, 0 on success, otherwise error code
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*/
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Result WaitSynchronization(bool* wait) {
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// TODO(bunnei): ImplementMe
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ERROR_LOG(OSHLE, "(UNIMPLEMENTED)");
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return 0;
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}
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};
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Arbitrate an address
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Result ArbitrateAddress(Handle handle, ArbitrationType type, u32 address, s32 value) {
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switch (type) {
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// Signal thread(s) waiting for arbitrate address...
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case ArbitrationType::Signal:
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// Negative value means resume all threads
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if (value < 0) {
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ArbitrateAllThreads(handle, address);
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} else {
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// Resume first N threads
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for(int i = 0; i < value; i++)
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ArbitrateHighestPriorityThread(handle, address);
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}
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break;
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// Wait current thread (acquire the arbiter)...
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case ArbitrationType::WaitIfLessThan:
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if ((s32)Memory::Read32(address) <= value) {
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Kernel::WaitCurrentThread(WAITTYPE_ARB, handle);
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HLE::Reschedule(__func__);
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}
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break;
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default:
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ERROR_LOG(KERNEL, "unknown type=%d", type);
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return -1;
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}
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return 0;
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}
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/// Create an address arbiter
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AddressArbiter* CreateAddressArbiter(Handle& handle, const std::string& name) {
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AddressArbiter* address_arbiter = new AddressArbiter;
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handle = Kernel::g_object_pool.Create(address_arbiter);
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address_arbiter->name = name;
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return address_arbiter;
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}
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/// Create an address arbiter
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Handle CreateAddressArbiter(const std::string& name) {
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Handle handle;
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CreateAddressArbiter(handle, name);
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return handle;
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}
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} // namespace Kernel
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