hermes::BufferID Union Reference

#include <buffer_pool.h>

Public Attributes
struct {
u32   header_index
u32   node_id
}	bits
u64	as_int

Detailed Description

A unique identifier for any buffer in the system.

This number is unique for each buffer when read as a 64 bit integer. The top 32 bits signify the node that "owns" the buffer, and the bottom 32 bits form an index into the array of BufferHeaders in the BufferPool on that node. Node indexing begins at 1 so that a BufferID of 0 represents the NULL BufferID.

Member Data Documentation

header_index

u32 hermes::BufferID::header_index

An index into the BufferHeaders array in the BufferPool on node node_id.

node_id

u32 hermes::BufferID::node_id

The node identifier where this BufferID's BufferHeader resides (1-based index).

struct { ... } hermes::BufferID::bits

A structure to represent 64 bits with 32-bit header index and node id

as_int

u64 hermes::BufferID::as_int

A single integer that uniquely identifies a buffer.

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The documentation for this union was generated from the following file:

• /home/runner/work/hermes/hermes/src/buffer_pool.h