nim-ffi/examples/timer/rust_native_bindings/src/ffi.rs

// Generated by nim-ffi native Rust codegen. Do not edit by hand.
#![allow(non_snake_case, dead_code)]
use std::os::raw::{c_char, c_int, c_void};

pub type FFICallback =
    unsafe extern "C" fn(ret: c_int, msg: *const c_char, len: usize, user_data: *mut c_void);

#[repr(C)]
#[derive(Clone, Copy)]
pub struct TimerConfig {
    pub name: *const c_char,
}

#[repr(C)]
#[derive(Clone, Copy)]
pub struct EchoRequest {
    pub message: *const c_char,
    pub delay_ms: i64,
}

#[repr(C)]
#[derive(Clone, Copy)]
pub struct EchoResponse {
    pub echoed: *const c_char,
    pub timer_name: *const c_char,
}

#[repr(C)]
#[derive(Clone, Copy)]
pub struct ComplexResponse {
    pub summary: *const c_char,
    pub item_count: i64,
    pub has_note: c_int,
}

#[repr(C)]
#[derive(Clone, Copy)]
pub struct EchoEvent {
    pub message: *const c_char,
    pub echo_count: i64,
}

#[repr(C)]
#[derive(Clone, Copy)]
pub struct ScheduleResult {
    pub job_id: *const c_char,
    pub will_run_count: i64,
    pub first_run_at_ms: i64,
    pub effective_backoff_ms: i64,
}

#[link(name = "my_timer")]
extern "C" {
    pub fn my_timer_create(config: TimerConfig, callback: FFICallback, user_data: *mut c_void) -> *mut c_void;
    pub fn my_timer_echo(ctx: *mut c_void, callback: FFICallback, user_data: *mut c_void, req: EchoRequest) -> c_int;
    pub fn my_timer_version(ctx: *mut c_void, callback: FFICallback, user_data: *mut c_void) -> c_int;
    pub fn my_timer_destroy(ctx: *mut c_void) -> c_int;
}