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use std::any::Any;
use std::error::Error as StdError;
use hardware::IHardware;
#[cfg(feature = "native")]
use frameworks::native::Error as NativeError;
#[cfg(feature = "opencl")]
use frameworks::opencl::Error as OpenCLError;
#[cfg(feature = "cuda")]
use frameworks::cuda::DriverError as CudaError;
use std::{fmt, error};
pub trait IMemory { }
pub trait IDevice
where Self: Any + Clone + Eq + Any + MemorySync {
type H: IHardware;
type M: IMemory + Any;
fn id(&self) -> &isize;
fn hardwares(&self) -> &Vec<Self::H>;
fn alloc_memory(&self, size: usize) -> Result<Self::M, Error>;
}
pub trait MemorySync {
fn sync_in(&self, my_memory: &mut Any, src_device: &Any, src_memory: &Any)
-> Result<(), Error>;
fn sync_out(&self, my_memory: &Any, dst_device: &Any, dst_memory: &mut Any)
-> Result<(), Error>;
}
#[derive(Debug, Copy, Clone, PartialEq, Eq)]
pub enum Error {
NoMemorySyncRoute,
MemorySyncError,
MemoryAllocationError,
#[cfg(feature = "native")]
Native(NativeError),
#[cfg(feature = "opencl")]
OpenCL(OpenCLError),
#[cfg(feature = "cuda")]
Cuda(CudaError),
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
Error::NoMemorySyncRoute => write!(f, "{}", self.description()),
Error::MemorySyncError => write!(f, "{}", self.description()),
Error::MemoryAllocationError => write!(f, "{}", self.description()),
#[cfg(feature = "native")]
Error::Native(ref err) => write!(f, "Native error: {}", err),
#[cfg(feature = "opencl")]
Error::OpenCL(ref err) => write!(f, "OpenCL error: {}", err),
#[cfg(feature = "cuda")]
Error::Cuda(ref err) => write!(f, "Cuda error: {}", err),
}
}
}
impl error::Error for Error {
fn description(&self) -> &str {
match *self {
Error::NoMemorySyncRoute => "No available memory synchronization route",
Error::MemorySyncError => "Memory syncronization failed",
Error::MemoryAllocationError => "Memory allocation failed",
#[cfg(feature = "native")]
Error::Native(ref err) => err.description(),
#[cfg(feature = "opencl")]
Error::OpenCL(ref err) => err.description(),
#[cfg(feature = "cuda")]
Error::Cuda(ref err) => err.description(),
}
}
fn cause(&self) -> Option<&error::Error> {
match *self {
Error::NoMemorySyncRoute => None,
Error::MemorySyncError => None,
Error::MemoryAllocationError => None,
#[cfg(feature = "native")]
Error::Native(ref err) => Some(err),
#[cfg(feature = "opencl")]
Error::OpenCL(ref err) => Some(err),
#[cfg(feature = "cuda")]
Error::Cuda(ref err) => Some(err),
}
}
}
#[cfg(feature = "native")]
impl From<NativeError> for Error {
fn from(err: NativeError) -> Error {
Error::Native(err)
}
}
#[cfg(feature = "opencl")]
impl From<OpenCLError> for Error {
fn from(err: OpenCLError) -> Error {
Error::OpenCL(err)
}
}
#[cfg(feature = "cuda")]
impl From<CudaError> for Error {
fn from(err: CudaError) -> Error {
Error::Cuda(err)
}
}