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author | Zach Hilman <zachhilman@gmail.com> | 2018-11-27 00:31:22 +0100 |
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committer | Zach Hilman <zachhilman@gmail.com> | 2018-11-29 14:42:26 +0100 |
commit | c7133838161ce0c17276ef96c0decfb855510165 (patch) | |
tree | 35041d92a238d3c2952f0ef486da0214cdc7e267 /src/core/hle/kernel/writable_event.cpp | |
parent | kernel/object: Add descriptions to ResetTypes (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | src/core/hle/kernel/writable_event.cpp | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/src/core/hle/kernel/writable_event.cpp b/src/core/hle/kernel/writable_event.cpp new file mode 100644 index 000000000..4eb387ac0 --- /dev/null +++ b/src/core/hle/kernel/writable_event.cpp @@ -0,0 +1,81 @@ +// Copyright 2014 Citra Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include <algorithm> +#include "common/assert.h" +#include "core/hle/kernel/kernel.h" +#include "core/hle/kernel/object.h" +#include "core/hle/kernel/readable_event.h" +#include "core/hle/kernel/thread.h" +#include "core/hle/kernel/writable_event.h" + +namespace Kernel { + +WritableEvent::WritableEvent(KernelCore& kernel) : WaitObject{kernel} {} +WritableEvent::~WritableEvent() = default; + +std::tuple<SharedPtr<WritableEvent>, SharedPtr<ReadableEvent>> WritableEvent::CreateEventPair( + KernelCore& kernel, ResetType reset_type, std::string name) { + SharedPtr<WritableEvent> writable_event(new WritableEvent(kernel)); + SharedPtr<ReadableEvent> readable_event(new ReadableEvent(kernel)); + + writable_event->name = name + ":Writable"; + writable_event->signaled = false; + writable_event->reset_type = reset_type; + readable_event->name = name + ":Readable"; + readable_event->writable_event = writable_event; + + return std::make_tuple(std::move(writable_event), std::move(readable_event)); +} + +SharedPtr<WritableEvent> WritableEvent::CreateRegisteredEventPair(KernelCore& kernel, + ResetType reset_type, + std::string name) { + auto [writable_event, readable_event] = CreateEventPair(kernel, reset_type, name); + kernel.AddNamedEvent(name, std::move(readable_event)); + return std::move(writable_event); +} + +bool WritableEvent::ShouldWait(Thread* thread) const { + return !signaled; +} + +void WritableEvent::Acquire(Thread* thread) { + ASSERT_MSG(!ShouldWait(thread), "object unavailable!"); + + if (reset_type == ResetType::OneShot) + signaled = false; +} + +void WritableEvent::Signal() { + signaled = true; + WakeupAllWaitingThreads(); +} + +void WritableEvent::Clear() { + signaled = false; +} + +void WritableEvent::ResetOnAcquire() { + if (reset_type == ResetType::OneShot) + Clear(); +} + +void WritableEvent::ResetOnWakeup() { + if (reset_type == ResetType::Pulse) + Clear(); +} + +bool WritableEvent::IsSignaled() const { + return signaled; +} + +void WritableEvent::WakeupAllWaitingThreads() { + WaitObject::WakeupAllWaitingThreads(); + + if (reset_type == ResetType::Pulse) + signaled = false; +} + +} // namespace Kernel |