shard (version 0.1.0)

shard_apply_policy: Apply Wrapper Policy

Description

Centralizes safe defaults and guardrails for apply/lapply convenience wrappers.

Usage

shard_apply_policy(
  auto_share_min_bytes = "1MB",
  max_gather_bytes = "256MB",
  cow = c("deny", "audit", "allow"),
  profile = c("default", "memory", "speed"),
  block_size = "auto",
  backing = c("auto", "mmap", "shm")
)

Value

An object of class shard_apply_policy.

Arguments

auto_share_min_bytes

Minimum object size for auto-sharing (default "1MB").

max_gather_bytes

Maximum estimated gathered result bytes before refusing to run (default "256MB").

cow

Copy-on-write policy for borrowed inputs. One of "deny", "audit", or "allow". Default "deny".

profile

Execution profile passed through to shard_map(). One of "default", "memory", or "speed". Default "default".

block_size

Shard block size for apply-style workloads. Default "auto".

backing

Backing type used when auto-sharing ("auto", "mmap", "shm").

Examples

cfg <- shard_apply_policy()
cfg