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7725256f64
This should speed up compile times a bit, as well as enable more liberal use of forward declarations. (Due to SharedPtr not trying to emit the destructor anymore.)
91 lines
3.0 KiB
C++
91 lines
3.0 KiB
C++
// Copyright 2014 Citra Emulator Project
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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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#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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AddressArbiter::AddressArbiter() {}
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AddressArbiter::~AddressArbiter() {}
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ResultVal<SharedPtr<AddressArbiter>> AddressArbiter::Create(std::string name) {
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SharedPtr<AddressArbiter> address_arbiter(new AddressArbiter);
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// TOOD(yuriks): Don't create Handle (see Thread::Create())
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CASCADE_RESULT(auto unused, Kernel::g_handle_table.Create(address_arbiter));
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address_arbiter->name = std::move(name);
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return MakeResult<SharedPtr<AddressArbiter>>(std::move(address_arbiter));
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}
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ResultCode AddressArbiter::ArbitrateAddress(ArbitrationType type, VAddr address, s32 value,
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u64 nanoseconds) {
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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(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(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_ArbitrateAddress(address);
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HLE::Reschedule(__func__);
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}
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break;
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case ArbitrationType::WaitIfLessThanWithTimeout:
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if ((s32)Memory::Read32(address) <= value) {
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Kernel::WaitCurrentThread_ArbitrateAddress(address);
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GetCurrentThread()->WakeAfterDelay(nanoseconds);
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HLE::Reschedule(__func__);
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}
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break;
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case ArbitrationType::DecrementAndWaitIfLessThan:
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{
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s32 memory_value = Memory::Read32(address) - 1;
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Memory::Write32(address, memory_value);
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if (memory_value <= value) {
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Kernel::WaitCurrentThread_ArbitrateAddress(address);
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HLE::Reschedule(__func__);
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}
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break;
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}
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case ArbitrationType::DecrementAndWaitIfLessThanWithTimeout:
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{
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s32 memory_value = Memory::Read32(address) - 1;
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Memory::Write32(address, memory_value);
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if (memory_value <= value) {
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Kernel::WaitCurrentThread_ArbitrateAddress(address);
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GetCurrentThread()->WakeAfterDelay(nanoseconds);
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HLE::Reschedule(__func__);
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}
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break;
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}
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default:
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LOG_ERROR(Kernel, "unknown type=%d", type);
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return ResultCode(ErrorDescription::InvalidEnumValue, ErrorModule::Kernel, ErrorSummary::WrongArgument, ErrorLevel::Usage);
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}
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return RESULT_SUCCESS;
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}
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} // namespace Kernel
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