canic_core/
lib.rs

1//! Core Canic library used inside canisters.
2//!
3//! Most users should depend on the `canic` facade crate, which re-exports this crate
4//! under `canic::core` and exposes the common entrypoint macros:
5//! - `canic::build!` / `canic::build_root!` (in `build.rs`) to validate/embed `canic.toml`
6//! - `canic::start!` / `canic::start_root!` (in `lib.rs`) to wire lifecycle hooks and export endpoints
7//!
8//! ## Layering
9//!
10//! Canic is organized to keep endpoint code thin and coordination centralized:
11//! - `access/` contains access expressions, predicates, and metrics for boundary enforcement.
12//! - `workflow/` implements orchestration and lifecycle workflows.
13//! - `domain/` contains pure value and decision helpers.
14//! - `ops/` provides mechanical, reusable side-effecting operations.
15//! - `storage/` owns stable-memory-backed schemas and helpers.
16//! - `view/` exposes internal read-only projections over stored/runtime state.
17//! - macro entrypoints live in the `canic` facade crate.
18//!
19//! The default flow is: endpoints → workflow → domain/decision helpers → ops → storage.
20
21#[doc(hidden)]
22pub mod __control_plane_core;
23#[doc(hidden)]
24pub mod access;
25pub mod api;
26#[doc(hidden)]
27pub mod bootstrap;
28#[doc(hidden)]
29pub mod dispatch;
30pub mod dto;
31#[doc(hidden)]
32pub mod error;
33mod format;
34pub mod ids;
35pub mod log;
36pub mod perf;
37pub mod protocol;
38#[cfg(test)]
39pub mod test;
40
41pub(crate) mod config;
42pub(crate) mod domain;
43pub(crate) mod infra;
44pub(crate) mod lifecycle;
45pub(crate) mod ops;
46pub(crate) mod storage;
47pub(crate) mod view;
48pub(crate) mod workflow;
49
50pub use {
51    ::canic_cdk as cdk,
52    ::canic_memory as memory,
53    ::canic_memory::{eager_init, eager_static, ic_memory, ic_memory_range},
54};
55
56pub(crate) use error::{InternalError, InternalErrorClass, InternalErrorOrigin};
57
58/// Internal re-exports required for macro expansion.
59/// Not part of the public API.
60#[doc(hidden)]
61pub mod __reexports {
62    pub use ::ctor;
63}
64
65///
66/// Consts
67///
68
69pub const CRATE_NAME: &str = env!("CARGO_PKG_NAME");
70pub const VERSION: &str = env!("CARGO_PKG_VERSION");
71pub const CANIC_MEMORY_MIN: u8 = storage::stable::CANIC_MEMORY_MIN;
72pub const CANIC_MEMORY_MAX: u8 = storage::stable::CANIC_MEMORY_MAX;
73// Canonical hardcoded 1 MiB chunk size for Canic wasm staging/install flows.
74// The management canister wasm chunk store rejects larger payloads.
75pub const CANIC_WASM_CHUNK_BYTES: usize = 1_048_576;
76
77#[macro_export]
78macro_rules! perf {
79    ($($label:tt)*) => {{
80        $crate::perf::PERF_LAST.with(|last| {
81            let now = $crate::perf::perf_counter();
82            let then = *last.borrow();
83            let delta = now.saturating_sub(then);
84
85            *last.borrow_mut() = now;
86
87            let label = format!($($label)*);
88            $crate::perf::record_checkpoint(module_path!(), &label, delta);
89        });
90    }};
91}
92
93#[cfg(test)]
94#[macro_export]
95macro_rules! assert_err_variant {
96    ($err:expr, $pat:pat $(if $guard:expr)? $(,)?) => {{
97        match $err {
98            $pat $(if $guard)? => {}
99            other => panic!("unexpected error variant: {other:?}"),
100        }
101    }};
102}
canic_core/lib.rs

canic_core/
lib.rs
