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kernel: convert KResourceLimit

This commit is contained in:
Liam 2023-03-07 10:58:51 -05:00
parent c0b9e93b77
commit 641783df8f
2 changed files with 59 additions and 59 deletions
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98
src/core/hle/kernel/k_resource_limit.cpp
View File

@ -12,11 +12,11 @@ namespace Kernel {
constexpr s64 DefaultTimeout = 10000000000; // 10 seconds
KResourceLimit::KResourceLimit(KernelCore& kernel)
: KAutoObjectWithSlabHeapAndContainer{kernel}, lock{kernel}, cond_var{kernel} {}
: KAutoObjectWithSlabHeapAndContainer{kernel}, m_lock{m_kernel}, m_cond_var{m_kernel} {}
KResourceLimit::~KResourceLimit() = default;
void KResourceLimit::Initialize(const Core::Timing::CoreTiming* core_timing_) {
core_timing = core_timing_;
void KResourceLimit::Initialize(const Core::Timing::CoreTiming* core_timing) {
m_core_timing = core_timing;
}
void KResourceLimit::Finalize() {}
@ -25,11 +25,11 @@ s64 KResourceLimit::GetLimitValue(LimitableResource which) const {
const auto index = static_cast<std::size_t>(which);
s64 value{};
{
KScopedLightLock lk{lock};
value = limit_values[index];
KScopedLightLock lk{m_lock};
value = m_limit_values[index];
ASSERT(value >= 0);
ASSERT(current_values[index] <= limit_values[index]);
ASSERT(current_hints[index] <= current_values[index]);
ASSERT(m_current_values[index] <= m_limit_values[index]);
ASSERT(m_current_hints[index] <= m_current_values[index]);
}
return value;
}
@ -38,11 +38,11 @@ s64 KResourceLimit::GetCurrentValue(LimitableResource which) const {
const auto index = static_cast<std::size_t>(which);
s64 value{};
{
KScopedLightLock lk{lock};
value = current_values[index];
KScopedLightLock lk{m_lock};
value = m_current_values[index];
ASSERT(value >= 0);
ASSERT(current_values[index] <= limit_values[index]);
ASSERT(current_hints[index] <= current_values[index]);
ASSERT(m_current_values[index] <= m_limit_values[index]);
ASSERT(m_current_hints[index] <= m_current_values[index]);
}
return value;
}
@ -51,11 +51,11 @@ s64 KResourceLimit::GetPeakValue(LimitableResource which) const {
const auto index = static_cast<std::size_t>(which);
s64 value{};
{
KScopedLightLock lk{lock};
value = peak_values[index];
KScopedLightLock lk{m_lock};
value = m_peak_values[index];
ASSERT(value >= 0);
ASSERT(current_values[index] <= limit_values[index]);
ASSERT(current_hints[index] <= current_values[index]);
ASSERT(m_current_values[index] <= m_limit_values[index]);
ASSERT(m_current_hints[index] <= m_current_values[index]);
}
return value;
}
@ -64,11 +64,11 @@ s64 KResourceLimit::GetFreeValue(LimitableResource which) const {
const auto index = static_cast<std::size_t>(which);
s64 value{};
{
KScopedLightLock lk(lock);
ASSERT(current_values[index] >= 0);
ASSERT(current_values[index] <= limit_values[index]);
ASSERT(current_hints[index] <= current_values[index]);
value = limit_values[index] - current_values[index];
KScopedLightLock lk(m_lock);
ASSERT(m_current_values[index] >= 0);
ASSERT(m_current_values[index] <= m_limit_values[index]);
ASSERT(m_current_hints[index] <= m_current_values[index]);
value = m_limit_values[index] - m_current_values[index];
}
return value;
@ -76,51 +76,51 @@ s64 KResourceLimit::GetFreeValue(LimitableResource which) const {
Result KResourceLimit::SetLimitValue(LimitableResource which, s64 value) {
const auto index = static_cast<std::size_t>(which);
KScopedLightLock lk(lock);
R_UNLESS(current_values[index] <= value, ResultInvalidState);
KScopedLightLock lk(m_lock);
R_UNLESS(m_current_values[index] <= value, ResultInvalidState);
limit_values[index] = value;
peak_values[index] = current_values[index];
m_limit_values[index] = value;
m_peak_values[index] = m_current_values[index];
R_SUCCEED();
}
bool KResourceLimit::Reserve(LimitableResource which, s64 value) {
return Reserve(which, value, core_timing->GetGlobalTimeNs().count() + DefaultTimeout);
return Reserve(which, value, m_core_timing->GetGlobalTimeNs().count() + DefaultTimeout);
}
bool KResourceLimit::Reserve(LimitableResource which, s64 value, s64 timeout) {
ASSERT(value >= 0);
const auto index = static_cast<std::size_t>(which);
KScopedLightLock lk(lock);
KScopedLightLock lk(m_lock);
ASSERT(current_hints[index] <= current_values[index]);
if (current_hints[index] >= limit_values[index]) {
ASSERT(m_current_hints[index] <= m_current_values[index]);
if (m_current_hints[index] >= m_limit_values[index]) {
return false;
}
// Loop until we reserve or run out of time.
while (true) {
ASSERT(current_values[index] <= limit_values[index]);
ASSERT(current_hints[index] <= current_values[index]);
ASSERT(m_current_values[index] <= m_limit_values[index]);
ASSERT(m_current_hints[index] <= m_current_values[index]);
// If we would overflow, don't allow to succeed.
if (Common::WrappingAdd(current_values[index], value) <= current_values[index]) {
if (Common::WrappingAdd(m_current_values[index], value) <= m_current_values[index]) {
break;
}
if (current_values[index] + value <= limit_values[index]) {
current_values[index] += value;
current_hints[index] += value;
peak_values[index] = std::max(peak_values[index], current_values[index]);
if (m_current_values[index] + value <= m_limit_values[index]) {
m_current_values[index] += value;
m_current_hints[index] += value;
m_peak_values[index] = std::max(m_peak_values[index], m_current_values[index]);
return true;
}
if (current_hints[index] + value <= limit_values[index] &&
(timeout < 0 || core_timing->GetGlobalTimeNs().count() < timeout)) {
waiter_count++;
cond_var.Wait(&lock, timeout, false);
waiter_count--;
if (m_current_hints[index] + value <= m_limit_values[index] &&
(timeout < 0 || m_core_timing->GetGlobalTimeNs().count() < timeout)) {
m_waiter_count++;
m_cond_var.Wait(&m_lock, timeout, false);
m_waiter_count--;
} else {
break;
}
@ -138,17 +138,17 @@ void KResourceLimit::Release(LimitableResource which, s64 value, s64 hint) {
ASSERT(hint >= 0);
const auto index = static_cast<std::size_t>(which);
KScopedLightLock lk(lock);
ASSERT(current_values[index] <= limit_values[index]);
ASSERT(current_hints[index] <= current_values[index]);
ASSERT(value <= current_values[index]);
ASSERT(hint <= current_hints[index]);
KScopedLightLock lk(m_lock);
ASSERT(m_current_values[index] <= m_limit_values[index]);
ASSERT(m_current_hints[index] <= m_current_values[index]);
ASSERT(value <= m_current_values[index]);
ASSERT(hint <= m_current_hints[index]);
current_values[index] -= value;
current_hints[index] -= hint;
m_current_values[index] -= value;
m_current_hints[index] -= hint;
if (waiter_count != 0) {
cond_var.Broadcast();
if (m_waiter_count != 0) {
m_cond_var.Broadcast();
}
}

20
src/core/hle/kernel/k_resource_limit.h
View File

@ -28,10 +28,10 @@ class KResourceLimit final
KERNEL_AUTOOBJECT_TRAITS(KResourceLimit, KAutoObject);
public:
explicit KResourceLimit(KernelCore& kernel_);
explicit KResourceLimit(KernelCore& kernel);
~KResourceLimit() override;
void Initialize(const Core::Timing::CoreTiming* core_timing_);
void Initialize(const Core::Timing::CoreTiming* core_timing);
void Finalize() override;
s64 GetLimitValue(LimitableResource which) const;
@ -50,14 +50,14 @@ public:
private:
using ResourceArray = std::array<s64, static_cast<std::size_t>(LimitableResource::Count)>;
ResourceArray limit_values{};
ResourceArray current_values{};
ResourceArray current_hints{};
ResourceArray peak_values{};
mutable KLightLock lock;
s32 waiter_count{};
KLightConditionVariable cond_var;
const Core::Timing::CoreTiming* core_timing{};
ResourceArray m_limit_values{};
ResourceArray m_current_values{};
ResourceArray m_current_hints{};
ResourceArray m_peak_values{};
mutable KLightLock m_lock;
s32 m_waiter_count{};
KLightConditionVariable m_cond_var;
const Core::Timing::CoreTiming* m_core_timing{};
};
KResourceLimit* CreateResourceLimitForProcess(Core::System& system, s64 physical_memory_size);