ic_memory/constants.rs
1/// Maximum byte length for printable diagnostic metadata fields.
2pub const DIAGNOSTIC_STRING_MAX_BYTES: usize = 256;
3
4/// WebAssembly page size used by `ic-stable-structures` memory implementations.
5pub const WASM_PAGE_SIZE_BYTES: u64 = 65_536;
6
7/// Maximum allocation identities in the usable ID domain, including governance.
8pub const MAX_ALLOCATIONS: usize = crate::slot::MEMORY_MANAGER_INVALID_ID as usize;
9
10/// Maximum encoded ownership ledger size (64 KiB for at most 255 records).
11pub const MAX_LEDGER_BYTES: usize = 64 * 1024;
12/// Maximum opaque generation payload containing direct logical CBOR.
13pub const MAX_COMMITTED_PAYLOAD_BYTES: usize = MAX_LEDGER_BYTES;
14/// One bounded CBOR byte string plus record metadata (64 KiB + 4 KiB).
15pub const MAX_LEDGER_RECORD_BYTES: usize = MAX_LEDGER_BYTES + 4096;
16/// Maximum CBOR container nesting on maintained decode paths.
17pub const MAX_LEDGER_NESTING: usize = 32;