blazen-cabi 0.5.2

Hand-rolled C ABI over blazen-uniffi for the Ruby gem (via cbindgen + FFI gem) and any other FFI host
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//! C ABI over `blazen-uniffi` for FFI hosts (Ruby `ffi` gem today, future
//! Dart/Crystal/Lua/PHP). Every Rust `async fn` here exposes two C entry
//! points: a `*_blocking` variant that synchronously blocks on the cabi
//! tokio runtime, and a future-returning variant that yields a `BlazenFuture*`
//! handle with a pipe read-fd suitable for `Fiber.scheduler`-aware Ruby
//! consumers (and any host that can wait on a file descriptor).
//!
//! See `crates/blazen-cabi/cbindgen.toml` and `build.rs` for header emission.
//! The committed header is at `bindings/ruby/ext/blazen/blazen.h`.

#![allow(unsafe_code)] // entire crate is an unsafe FFI surface; safety contracts documented per-fn

pub mod agent;
pub mod agent_records;
pub mod batch;
pub mod batch_records;
pub mod compute;
pub mod compute_factories;
pub mod compute_records;
pub mod compute_requests;
pub mod compute_results;
pub mod error;
pub mod future;
pub mod init;
pub mod llm;
pub mod llm_records;
pub mod peer;
pub mod persist;
pub mod persist_factories;
pub mod persist_records;
pub mod pipeline;
pub mod pricing;
pub mod provider_api_protocol;
pub mod provider_base;
pub mod provider_custom;
pub mod provider_defaults;
pub mod providers;
pub mod runtime;
pub mod step_handler;
pub mod stream_sink;
pub mod streaming_records;
pub mod string;
pub mod telemetry;
pub mod telemetry_records;
pub mod tool_handler;
pub mod workflow;
pub mod workflow_records;

use std::ffi::{CString, c_char};

/// Returns the blazen-cabi crate version as a heap-allocated UTF-8 C string.
///
/// # Ownership
///
/// Caller must free with [`string::blazen_string_free`].
///
/// # Safety
///
/// The returned pointer is non-null and points to a NUL-terminated UTF-8 buffer.
#[unsafe(no_mangle)]
pub extern "C" fn blazen_version() -> *mut c_char {
    // Use the workspace package version. Mirrors `blazen_uniffi::version()`.
    let v = env!("CARGO_PKG_VERSION");
    match CString::new(v) {
        Ok(c) => c.into_raw(),
        Err(_) => std::ptr::null_mut(),
    }
}