diff options
Diffstat (limited to 'src/core/hle/kernel/shared_memory.h')
-rw-r--r-- | src/core/hle/kernel/shared_memory.h | 52 |
1 files changed, 32 insertions, 20 deletions
diff --git a/src/core/hle/kernel/shared_memory.h b/src/core/hle/kernel/shared_memory.h index 2c06bb7ce..dab2a6bea 100644 --- a/src/core/hle/kernel/shared_memory.h +++ b/src/core/hle/kernel/shared_memory.h @@ -45,8 +45,8 @@ public: * linear heap. * @param name Optional object name, used for debugging purposes. */ - static SharedPtr<SharedMemory> Create(KernelCore& kernel, SharedPtr<Process> owner_process, - u64 size, MemoryPermission permissions, + static SharedPtr<SharedMemory> Create(KernelCore& kernel, Process* owner_process, u64 size, + MemoryPermission permissions, MemoryPermission other_permissions, VAddr address = 0, MemoryRegion region = MemoryRegion::BASE, std::string name = "Unknown"); @@ -64,7 +64,7 @@ public: */ static SharedPtr<SharedMemory> CreateForApplet(KernelCore& kernel, std::shared_ptr<std::vector<u8>> heap_block, - u32 offset, u32 size, + std::size_t offset, u64 size, MemoryPermission permissions, MemoryPermission other_permissions, std::string name = "Unknown Applet"); @@ -81,6 +81,11 @@ public: return HANDLE_TYPE; } + /// Gets the size of the underlying memory block in bytes. + u64 GetSize() const { + return size; + } + /** * Converts the specified MemoryPermission into the equivalent VMAPermission. * @param permission The MemoryPermission to convert. @@ -94,44 +99,51 @@ public: * @param permissions Memory block map permissions (specified by SVC field) * @param other_permissions Memory block map other permissions (specified by SVC field) */ - ResultCode Map(Process* target_process, VAddr address, MemoryPermission permissions, + ResultCode Map(Process& target_process, VAddr address, MemoryPermission permissions, MemoryPermission other_permissions); /** * Unmaps a shared memory block from the specified address in system memory - * @param target_process Process from which to umap the memory block. + * @param target_process Process from which to unmap the memory block. * @param address Address in system memory where the shared memory block is mapped * @return Result code of the unmap operation */ - ResultCode Unmap(Process* target_process, VAddr address); + ResultCode Unmap(Process& target_process, VAddr address); /** * Gets a pointer to the shared memory block * @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 + * @return A pointer to the shared memory block from the specified offset */ - u8* GetPointer(u32 offset = 0); + u8* GetPointer(std::size_t offset = 0); + + /** + * Gets a constant pointer to the shared memory block + * @param offset Offset from the start of the shared memory block to get pointer + * @return A constant pointer to the shared memory block from the specified offset + */ + const u8* GetPointer(std::size_t offset = 0) const; + +private: + explicit SharedMemory(KernelCore& kernel); + ~SharedMemory() override; - /// Process that created this shared memory block. - SharedPtr<Process> owner_process; - /// Address of shared memory block in the owner process if specified. - VAddr base_address; /// Backing memory for this shared memory block. std::shared_ptr<std::vector<u8>> backing_block; /// Offset into the backing block for this shared memory. - std::size_t backing_block_offset; + std::size_t backing_block_offset = 0; /// Size of the memory block. Page-aligned. - u64 size; + u64 size = 0; /// Permission restrictions applied to the process which created the block. - MemoryPermission permissions; + MemoryPermission permissions{}; /// Permission restrictions applied to other processes mapping the block. - MemoryPermission other_permissions; + MemoryPermission other_permissions{}; + /// Process that created this shared memory block. + Process* owner_process; + /// Address of shared memory block in the owner process if specified. + VAddr base_address = 0; /// Name of shared memory object. std::string name; - -private: - explicit SharedMemory(KernelCore& kernel); - ~SharedMemory() override; }; } // namespace Kernel |