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use crate::error::check;
use crate::Error;
use crate::Model;
use crate::ModelData;
use crate::VariableProfileTable;
use std::ffi::CString;
use std::ptr;
/// Builder for `Model`.
pub struct ModelBuilder {
handle: menoh_sys::menoh_model_builder_handle,
}
impl ModelBuilder {
/// Create a builder using a `VariableProfileTable`.
///
/// ```
/// # use menoh::*;
/// # fn main() -> Result<(), Error> {
/// # let mut model_data = ModelData::from_onnx("MLP.onnx")?;
/// # let mut vpt_builder = VariableProfileTableBuilder::new()?;
/// # vpt_builder.add_input::<f32>("input", &[2, 3])?;
/// # vpt_builder.add_output("fc2")?;
/// # let vpt = vpt_builder.build(&model_data)?;
/// let model_builder = ModelBuilder::new(&vpt)?;
/// # Ok(())
/// # }
/// ```
pub fn new(variable_profile_table: &VariableProfileTable) -> Result<Self, Error> {
let mut handle = ptr::null_mut();
unsafe {
check(menoh_sys::menoh_make_model_builder(
variable_profile_table.handle,
&mut handle,
))?;
}
Ok(Self { handle })
}
/// Build a `Model` from a `ModelData`.
///
/// ```
/// # use menoh::*;
/// # fn main() -> Result<(), Error> {
/// # let mut model_data = ModelData::from_onnx("MLP.onnx")?;
/// # let mut vpt_builder = VariableProfileTableBuilder::new()?;
/// # vpt_builder.add_input::<f32>("input", &[2, 3])?;
/// # vpt_builder.add_output("fc2")?;
/// # let vpt = vpt_builder.build(&model_data)?;
/// # model_data.optimize(&vpt)?;
/// # let model_builder = ModelBuilder::new(&vpt)?;
/// let model = model_builder.build(model_data, "mkldnn", "")?;
/// # Ok(())
/// # }
/// ```
pub fn build(
self,
model_data: ModelData,
backend_name: &str,
backend_config: &str,
) -> Result<Model, Error> {
let backend_name = CString::new(backend_name)?;
let backend_config = CString::new(backend_config)?;
let mut handle = ptr::null_mut();
unsafe {
check(menoh_sys::menoh_build_model(
self.handle,
model_data.handle,
backend_name.as_ptr(),
backend_config.as_ptr(),
&mut handle,
))?;
Ok(Model { handle })
}
}
}
impl Drop for ModelBuilder {
fn drop(&mut self) {
unsafe { menoh_sys::menoh_delete_model_builder(self.handle) }
}
}