mirror of
https://github.com/yuzu-emu/yuzu.git
synced 2024-08-22 05:43:22 +02:00
Merge pull request #246 from Subv/cbranch_1
SVC: Implemented Semaphores
This commit is contained in:
commit
17b4d6747a
@ -28,6 +28,7 @@ set(SRCS
|
||||
hle/kernel/event.cpp
|
||||
hle/kernel/kernel.cpp
|
||||
hle/kernel/mutex.cpp
|
||||
hle/kernel/semaphore.cpp
|
||||
hle/kernel/shared_memory.cpp
|
||||
hle/kernel/thread.cpp
|
||||
hle/service/ac_u.cpp
|
||||
@ -106,6 +107,7 @@ set(HEADERS
|
||||
hle/kernel/event.h
|
||||
hle/kernel/kernel.h
|
||||
hle/kernel/mutex.h
|
||||
hle/kernel/semaphore.h
|
||||
hle/kernel/shared_memory.h
|
||||
hle/kernel/thread.h
|
||||
hle/service/ac_u.h
|
||||
|
@ -114,6 +114,20 @@ template<s32 func(u32*, const char*)> void Wrap() {
|
||||
FuncReturn(retval);
|
||||
}
|
||||
|
||||
template<s32 func(u32*, s32, s32)> void Wrap() {
|
||||
u32 param_1 = 0;
|
||||
u32 retval = func(¶m_1, PARAM(1), PARAM(2));
|
||||
Core::g_app_core->SetReg(1, param_1);
|
||||
FuncReturn(retval);
|
||||
}
|
||||
|
||||
template<s32 func(s32*, u32, s32)> void Wrap() {
|
||||
s32 param_1 = 0;
|
||||
u32 retval = func(¶m_1, PARAM(1), PARAM(2));
|
||||
Core::g_app_core->SetReg(1, param_1);
|
||||
FuncReturn(retval);
|
||||
}
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////////////////////////
|
||||
// Function wrappers that return type u32
|
||||
|
||||
|
94
src/core/hle/kernel/semaphore.cpp
Normal file
94
src/core/hle/kernel/semaphore.cpp
Normal file
@ -0,0 +1,94 @@
|
||||
// Copyright 2014 Citra Emulator Project
|
||||
// Licensed under GPLv2+
|
||||
// Refer to the license.txt file included.
|
||||
|
||||
#include <queue>
|
||||
|
||||
#include "common/common.h"
|
||||
|
||||
#include "core/hle/kernel/kernel.h"
|
||||
#include "core/hle/kernel/semaphore.h"
|
||||
#include "core/hle/kernel/thread.h"
|
||||
|
||||
namespace Kernel {
|
||||
|
||||
class Semaphore : public Object {
|
||||
public:
|
||||
std::string GetTypeName() const override { return "Semaphore"; }
|
||||
std::string GetName() const override { return name; }
|
||||
|
||||
static Kernel::HandleType GetStaticHandleType() { return Kernel::HandleType::Semaphore; }
|
||||
Kernel::HandleType GetHandleType() const override { return Kernel::HandleType::Semaphore; }
|
||||
|
||||
u32 max_count; ///< Maximum number of simultaneous holders the semaphore can have
|
||||
u32 available_count; ///< Number of free slots left in the semaphore
|
||||
std::queue<Handle> waiting_threads; ///< Threads that are waiting for the semaphore
|
||||
std::string name; ///< Name of semaphore (optional)
|
||||
|
||||
/**
|
||||
* Tests whether a semaphore still has free slots
|
||||
* @return Whether the semaphore is available
|
||||
*/
|
||||
bool IsAvailable() const {
|
||||
return available_count > 0;
|
||||
}
|
||||
|
||||
ResultVal<bool> WaitSynchronization() override {
|
||||
bool wait = !IsAvailable();
|
||||
|
||||
if (wait) {
|
||||
Kernel::WaitCurrentThread(WAITTYPE_SEMA, GetHandle());
|
||||
waiting_threads.push(GetCurrentThreadHandle());
|
||||
} else {
|
||||
--available_count;
|
||||
}
|
||||
|
||||
return MakeResult<bool>(wait);
|
||||
}
|
||||
};
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
ResultCode CreateSemaphore(Handle* handle, u32 initial_count,
|
||||
u32 max_count, const std::string& name) {
|
||||
|
||||
if (initial_count > max_count)
|
||||
return ResultCode(ErrorDescription::InvalidCombination, ErrorModule::Kernel,
|
||||
ErrorSummary::WrongArgument, ErrorLevel::Permanent);
|
||||
|
||||
Semaphore* semaphore = new Semaphore;
|
||||
*handle = g_object_pool.Create(semaphore);
|
||||
|
||||
// When the semaphore is created, some slots are reserved for other threads,
|
||||
// and the rest is reserved for the caller thread
|
||||
semaphore->max_count = max_count;
|
||||
semaphore->available_count = initial_count;
|
||||
semaphore->name = name;
|
||||
|
||||
return RESULT_SUCCESS;
|
||||
}
|
||||
|
||||
ResultCode ReleaseSemaphore(s32* count, Handle handle, s32 release_count) {
|
||||
Semaphore* semaphore = g_object_pool.Get<Semaphore>(handle);
|
||||
if (semaphore == nullptr)
|
||||
return InvalidHandle(ErrorModule::Kernel);
|
||||
|
||||
if (semaphore->max_count - semaphore->available_count < release_count)
|
||||
return ResultCode(ErrorDescription::OutOfRange, ErrorModule::Kernel,
|
||||
ErrorSummary::InvalidArgument, ErrorLevel::Permanent);
|
||||
|
||||
*count = semaphore->available_count;
|
||||
semaphore->available_count += release_count;
|
||||
|
||||
// Notify some of the threads that the semaphore has been released
|
||||
// stop once the semaphore is full again or there are no more waiting threads
|
||||
while (!semaphore->waiting_threads.empty() && semaphore->IsAvailable()) {
|
||||
Kernel::ResumeThreadFromWait(semaphore->waiting_threads.front());
|
||||
semaphore->waiting_threads.pop();
|
||||
--semaphore->available_count;
|
||||
}
|
||||
|
||||
return RESULT_SUCCESS;
|
||||
}
|
||||
|
||||
} // namespace
|
32
src/core/hle/kernel/semaphore.h
Normal file
32
src/core/hle/kernel/semaphore.h
Normal file
@ -0,0 +1,32 @@
|
||||
// Copyright 2014 Citra Emulator Project
|
||||
// Licensed under GPLv2+
|
||||
// Refer to the license.txt file included.
|
||||
|
||||
#pragma once
|
||||
|
||||
#include "common/common_types.h"
|
||||
|
||||
#include "core/hle/kernel/kernel.h"
|
||||
|
||||
namespace Kernel {
|
||||
|
||||
/**
|
||||
* Creates a semaphore.
|
||||
* @param handle Pointer to the handle of the newly created object
|
||||
* @param initial_count Number of slots reserved for other threads
|
||||
* @param max_count Maximum number of slots the semaphore can have
|
||||
* @param name Optional name of semaphore
|
||||
* @return ResultCode of the error
|
||||
*/
|
||||
ResultCode CreateSemaphore(Handle* handle, u32 initial_count, u32 max_count, const std::string& name = "Unknown");
|
||||
|
||||
/**
|
||||
* Releases a certain number of slots from a semaphore.
|
||||
* @param count The number of free slots the semaphore had before this call
|
||||
* @param handle The handle of the semaphore to release
|
||||
* @param release_count The number of slots to release
|
||||
* @return ResultCode of the error
|
||||
*/
|
||||
ResultCode ReleaseSemaphore(s32* count, Handle handle, s32 release_count);
|
||||
|
||||
} // namespace
|
@ -12,6 +12,7 @@
|
||||
#include "core/hle/kernel/address_arbiter.h"
|
||||
#include "core/hle/kernel/event.h"
|
||||
#include "core/hle/kernel/mutex.h"
|
||||
#include "core/hle/kernel/semaphore.h"
|
||||
#include "core/hle/kernel/shared_memory.h"
|
||||
#include "core/hle/kernel/thread.h"
|
||||
|
||||
@ -288,6 +289,21 @@ static Result GetThreadId(u32* thread_id, Handle handle) {
|
||||
return result.raw;
|
||||
}
|
||||
|
||||
/// Creates a semaphore
|
||||
static Result CreateSemaphore(Handle* semaphore, s32 initial_count, s32 max_count) {
|
||||
ResultCode res = Kernel::CreateSemaphore(semaphore, initial_count, max_count);
|
||||
LOG_TRACE(Kernel_SVC, "called initial_count=%d, max_count=%d, created handle=0x%08X",
|
||||
initial_count, max_count, *semaphore);
|
||||
return res.raw;
|
||||
}
|
||||
|
||||
/// Releases a certain number of slots in a semaphore
|
||||
static Result ReleaseSemaphore(s32* count, Handle semaphore, s32 release_count) {
|
||||
LOG_TRACE(Kernel_SVC, "called release_count=%d, handle=0x%08X", release_count, semaphore);
|
||||
ResultCode res = Kernel::ReleaseSemaphore(count, semaphore, release_count);
|
||||
return res.raw;
|
||||
}
|
||||
|
||||
/// Query memory
|
||||
static Result QueryMemory(void* info, void* out, u32 addr) {
|
||||
LOG_ERROR(Kernel_SVC, "(UNIMPLEMENTED) called addr=0x%08X", addr);
|
||||
@ -366,8 +382,8 @@ const HLE::FunctionDef SVC_Table[] = {
|
||||
{0x12, nullptr, "Run"},
|
||||
{0x13, HLE::Wrap<CreateMutex>, "CreateMutex"},
|
||||
{0x14, HLE::Wrap<ReleaseMutex>, "ReleaseMutex"},
|
||||
{0x15, nullptr, "CreateSemaphore"},
|
||||
{0x16, nullptr, "ReleaseSemaphore"},
|
||||
{0x15, HLE::Wrap<CreateSemaphore>, "CreateSemaphore"},
|
||||
{0x16, HLE::Wrap<ReleaseSemaphore>, "ReleaseSemaphore"},
|
||||
{0x17, HLE::Wrap<CreateEvent>, "CreateEvent"},
|
||||
{0x18, HLE::Wrap<SignalEvent>, "SignalEvent"},
|
||||
{0x19, HLE::Wrap<ClearEvent>, "ClearEvent"},
|
||||
|
Loading…
Reference in New Issue
Block a user