Expand description
Lightweight library for use in Gear programs.
This library should be used as a standard library when writing Gear
programs. Compared to gstd
crate, this
library provides lower-level primitives that allow you to develop less
expensive programs. Choose it if you are ready to write more code
but get a more efficient Wasm.
Note that you are to define panic and out-of-memory handlers, as the crate does not provide them by default.
Examples
#![no_std]
extern crate galloc;
use gcore::msg;
#[no_mangle]
extern "C" fn handle() {
let mut bytes = [0; 64];
msg::read(&mut bytes).expect("Unable to read");
if let Ok(payload) = core::str::from_utf8(&bytes) {
if payload == "PING" {
msg::reply(b"PONG", 0).expect("Unable to reply");
}
}
}
#[panic_handler]
fn panic(_: &core::panic::PanicInfo) -> ! {
core::arch::wasm32::unreachable()
}
Modules
- Type definitions and helpers for error handling.
- Utility functions related to the current execution context or program execution flow.
- Extensions for additional features.
- Messaging API for Gear programs.
- API for creating programs from Gear programs.
Structs
- Program identifier.
- Code identifier.
- Message handle.
- Message identifier.
- Reservation identifier.