get_memory_block_ptrT_get_memory_block_ptrGetMemoryBlockPtrGetMemoryBlockPtrget_memory_block_ptr (算子名称)
名称
get_memory_block_ptrT_get_memory_block_ptrGetMemoryBlockPtrGetMemoryBlockPtrget_memory_block_ptr — Return the data pointer and size of a memory block.
警告
It is not recommended to use 该算子 get_memory_block_ptrget_memory_block_ptrGetMemoryBlockPtrGetMemoryBlockPtrGetMemoryBlockPtrget_memory_block_ptr in
HDevelop.
参数签名
描述
get_memory_block_ptrget_memory_block_ptrGetMemoryBlockPtrGetMemoryBlockPtrGetMemoryBlockPtrget_memory_block_ptr returns the data pointer to the beginning of a
memory block in PointerPointerPointerPointerpointerpointer and its size in bytes in SizeSizeSizeSizesizesize.
MemoryBlockHandleMemoryBlockHandleMemoryBlockHandleMemoryBlockHandlememoryBlockHandlememory_block_handle is the handle of the memory block.
运行信息
- 多线程类型:可重入(与非独占操作符并行运行)。
- 多线程作用域:全局(可以从任何线程调用)。
- 未经并行化处理。
参数表
MemoryBlockHandleMemoryBlockHandleMemoryBlockHandleMemoryBlockHandlememoryBlockHandlememory_block_handle (input_control) memory_block → HMemoryBlock, HTupleHHandleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)
Handle of the memory block.
PointerPointerPointerPointerpointerpointer (output_control) pointer → HTupleintHTupleHtuple (integer) (IntPtr) (Hlong) (Hlong)
Data pointer to the beginning of the memory block.
SizeSizeSizeSizesizesize (output_control) integer → HTupleintHTupleHtuple (integer) (int / long) (Hlong) (Hlong)
Size of the memory block.
结果
如果参数均有效，算子 get_memory_block_ptrget_memory_block_ptrGetMemoryBlockPtrGetMemoryBlockPtrGetMemoryBlockPtrget_memory_block_ptr returns
the value 2 (
H_MSG_TRUE)
. 如有必要，将引发异常。
可能的前置算子
create_memory_block_externcreate_memory_block_externCreateMemoryBlockExternCreateMemoryBlockExternCreateMemoryBlockExterncreate_memory_block_extern,
create_memory_block_extern_copycreate_memory_block_extern_copyCreateMemoryBlockExternCopyCreateMemoryBlockExternCopyCreateMemoryBlockExternCopycreate_memory_block_extern_copy
模块
Foundation