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Kernel: Added support for shared memory objects.

SharedMemory: Added optional name field for tracking known objects.
This commit is contained in:
bunnei 2014-07-05 00:55:39 -04:00
parent 3013015a0c
commit e547128185
5 changed files with 142 additions and 0 deletions

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@ -38,6 +38,7 @@ set(SRCS core.cpp
hle/kernel/event.cpp
hle/kernel/kernel.cpp
hle/kernel/mutex.cpp
hle/kernel/shared_memory.cpp
hle/kernel/thread.cpp
hle/service/apt.cpp
hle/service/fs.cpp
@ -85,6 +86,7 @@ set(HEADERS core.h
hle/kernel/archive.h
hle/kernel/kernel.h
hle/kernel/mutex.h
hle/kernel/shared_memory.h
hle/kernel/thread.h
hle/function_wrappers.h
hle/service/apt.h

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@ -170,6 +170,7 @@
<ClCompile Include="hle\kernel\event.cpp" />
<ClCompile Include="hle\kernel\kernel.cpp" />
<ClCompile Include="hle\kernel\mutex.cpp" />
<ClCompile Include="hle\kernel\shared_memory.cpp" />
<ClCompile Include="hle\kernel\thread.cpp" />
<ClCompile Include="hle\service\apt.cpp" />
<ClCompile Include="hle\service\fs.cpp" />
@ -222,6 +223,7 @@
<ClInclude Include="hle\kernel\event.h" />
<ClInclude Include="hle\kernel\kernel.h" />
<ClInclude Include="hle\kernel\mutex.h" />
<ClInclude Include="hle\kernel\shared_memory.h" />
<ClInclude Include="hle\kernel\thread.h" />
<ClInclude Include="hle\service\apt.h" />
<ClInclude Include="hle\service\fs.h" />

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@ -179,6 +179,9 @@
<ClCompile Include="file_sys\archive_romfs.cpp">
<Filter>file_sys</Filter>
</ClCompile>
<ClCompile Include="hle\kernel\shared_memory.cpp">
<Filter>hle\kernel</Filter>
</ClCompile>
</ItemGroup>
<ItemGroup>
<ClInclude Include="arm\disassembler\arm_disasm.h">
@ -320,6 +323,9 @@
<ClInclude Include="file_sys\archive_romfs.h">
<Filter>file_sys</Filter>
</ClInclude>
<ClInclude Include="hle\kernel\shared_memory.h">
<Filter>hle\kernel</Filter>
</ClInclude>
</ItemGroup>
<ItemGroup>
<Text Include="CMakeLists.txt" />

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@ -0,0 +1,94 @@
// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#include "common/common.h"
#include "core/mem_map.h"
#include "core/hle/kernel/shared_memory.h"
namespace Kernel {
class SharedMemory : public Object {
public:
const char* GetTypeName() const { return "SharedMemory"; }
static Kernel::HandleType GetStaticHandleType() { return Kernel::HandleType::SharedMemory; }
Kernel::HandleType GetHandleType() const { return Kernel::HandleType::SharedMemory; }
/**
* Wait for kernel object to synchronize
* @param wait Boolean wait set if current thread should wait as a result of sync operation
* @return Result of operation, 0 on success, otherwise error code
*/
Result WaitSynchronization(bool* wait) {
// TODO(bunnei): ImplementMe
ERROR_LOG(OSHLE, "(UNIMPLEMENTED)");
return 0;
}
u32 base_address; ///< Address of shared memory block in RAM
u32 permissions; ///< Permissions of shared memory block (specified by SVC field)
u32 other_permissions; ///< Other permissions of shared memory block (specified by SVC field)
std::string name; ///< Name of shared memory object (optional)
};
////////////////////////////////////////////////////////////////////////////////////////////////////
/**
* Creates a shared memory object
* @param handle Handle of newly created shared memory object
* @param name Name of shared memory object
* @return Pointer to newly created shared memory object
*/
SharedMemory* CreateSharedMemory(Handle& handle, const std::string& name) {
SharedMemory* shared_memory = new SharedMemory;
handle = Kernel::g_object_pool.Create(shared_memory);
shared_memory->name = name;
return shared_memory;
}
/**
* Creates a shared memory object
* @param name Optional name of shared memory object
* @return Handle of newly created shared memory object
*/
Handle CreateSharedMemory(const std::string& name) {
Handle handle;
CreateSharedMemory(handle, name);
return handle;
}
/**
* Maps a shared memory block to an address in system memory
* @param handle Shared memory block handle
* @param address Address in system memory to map shared memory block to
* @param permissions Memory block map permissions (specified by SVC field)
* @param other_permissions Memory block map other permissions (specified by SVC field)
* @return Result of operation, 0 on success, otherwise error code
*/
Result MapSharedMemory(u32 handle, u32 address, u32 permissions, u32 other_permissions) {
SharedMemory* shared_memory = Kernel::g_object_pool.GetFast<SharedMemory>(handle);
shared_memory->base_address = address;
shared_memory->permissions = permissions;
shared_memory->other_permissions = other_permissions;
return 0;
}
/**
* Gets a pointer to the shared memory block
* @param handle Shared memory block handle
* @param offset Offset from the start of the shared memory block to get pointer
* @return Pointer to the shared memory block from the specified offset
*/
u8* GetSharedMemoryPointer(Handle handle, u32 offset) {
SharedMemory* shared_memory = Kernel::g_object_pool.GetFast<SharedMemory>(handle);
_assert_msg_(KERNEL, (shared_memory != nullptr), "handle 0x%08X is not valid!", handle);
if (0 != shared_memory->base_address)
return Memory::GetPointer(shared_memory->base_address + offset);
ERROR_LOG(KERNEL, "memory block handle=0x%08X not mapped!", handle);
return nullptr;
}
} // namespace

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@ -0,0 +1,38 @@
// 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 shared memory object
* @param name Optional name of shared memory object
* @return Handle of newly created shared memory object
*/
Handle CreateSharedMemory(const std::string& name="Unknown");
/**
* Maps a shared memory block to an address in system memory
* @param handle Shared memory block handle
* @param address Address in system memory to map shared memory block to
* @param permissions Memory block map permissions (specified by SVC field)
* @param other_permissions Memory block map other permissions (specified by SVC field)
* @return Result of operation, 0 on success, otherwise error code
*/
Result MapSharedMemory(u32 handle, u32 address, u32 permissions, u32 other_permissions);
/**
* Gets a pointer to the shared memory block
* @param handle Shared memory block handle
* @param offset Offset from the start of the shared memory block to get pointer
* @return Pointer to the shared memory block from the specified offset
*/
u8* GetSharedMemoryPointer(Handle handle, u32 offset);
} // namespace