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// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// 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 {
SharedMemory::SharedMemory() {}
SharedMemory::~SharedMemory() {}
ResultVal<SharedPtr<SharedMemory>> SharedMemory::Create(std::string name) {
SharedPtr<SharedMemory> shared_memory(new SharedMemory);
// TOOD(yuriks): Don't create Handle (see Thread::Create())
CASCADE_RESULT(auto unused, Kernel::g_handle_table.Create(shared_memory));
shared_memory->name = std::move(name);
return MakeResult<SharedPtr<SharedMemory>>(std::move(shared_memory));
}
ResultCode SharedMemory::Map(VAddr address, MemoryPermission permissions,
MemoryPermission other_permissions) {
if (address < Memory::SHARED_MEMORY_VADDR || address >= Memory::SHARED_MEMORY_VADDR_END) {
LOG_ERROR(Kernel, "cannot map id=%u, address=0x%08X outside of shared mem bounds!",
GetObjectId(), address);
// TODO: Verify error code with hardware
return ResultCode(ErrorDescription::InvalidAddress, ErrorModule::Kernel,
ErrorSummary::InvalidArgument, ErrorLevel::Permanent);
}
this->base_address = address;
this->permissions = permissions;
this->other_permissions = other_permissions;
return RESULT_SUCCESS;
}
ResultVal<u8*> SharedMemory::GetPointer(u32 offset) {
if (base_address != 0)
return MakeResult<u8*>(Memory::GetPointer(base_address + offset));
LOG_ERROR(Kernel_SVC, "memory block id=%u not mapped!", GetObjectId());
// TODO(yuriks): Verify error code.
return ResultCode(ErrorDescription::InvalidAddress, ErrorModule::Kernel,
ErrorSummary::InvalidState, ErrorLevel::Permanent);
}
} // namespace
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