mirror of
https://github.com/facebookresearch/faiss.git
synced 2026-10-12 02:13:36 +00:00
Lucas Hosseini
a8118acbc5
Changelog: - changed license: BSD+Patents -> MIT - propagates exceptions raised in sub-indexes of IndexShards and IndexReplicas - support for searching several inverted lists in parallel (parallel_mode != 0) - better support for PQ codes where nbit != 8 or 16 - IVFSpectralHash implementation: spectral hash codes inside an IVF - 6-bit per component scalar quantizer (4 and 8 bit were already supported) - combinations of inverted lists: HStackInvertedLists and VStackInvertedLists - configurable number of threads for OnDiskInvertedLists prefetching (including 0=no prefetch) - more test and demo code compatible with Python 3 (print with parentheses) - refactored benchmark code: data loading is now in a single file
72 lines
1.8 KiB
C++
72 lines
1.8 KiB
C++
/**
|
|
* Copyright (c) Facebook, Inc. and its affiliates.
|
|
*
|
|
* This source code is licensed under the MIT license found in the
|
|
* LICENSE file in the root directory of this source tree.
|
|
*/
|
|
|
|
// -*- c++ -*-
|
|
|
|
#ifndef FAISS_EXCEPTION_INCLUDED
|
|
#define FAISS_EXCEPTION_INCLUDED
|
|
|
|
#include <exception>
|
|
#include <string>
|
|
#include <vector>
|
|
#include <utility>
|
|
|
|
namespace faiss {
|
|
|
|
/// Base class for Faiss exceptions
|
|
class FaissException : public std::exception {
|
|
public:
|
|
explicit FaissException(const std::string& msg);
|
|
|
|
FaissException(const std::string& msg,
|
|
const char* funcName,
|
|
const char* file,
|
|
int line);
|
|
|
|
/// from std::exception
|
|
const char* what() const noexcept override;
|
|
|
|
std::string msg;
|
|
};
|
|
|
|
/// Handle multiple exceptions from worker threads, throwing an appropriate
|
|
/// exception that aggregates the information
|
|
/// The pair int is the thread that generated the exception
|
|
void
|
|
handleExceptions(std::vector<std::pair<int, std::exception_ptr>>& exceptions);
|
|
|
|
/** bare-bones unique_ptr
|
|
* this one deletes with delete [] */
|
|
template<class T>
|
|
struct ScopeDeleter {
|
|
const T * ptr;
|
|
explicit ScopeDeleter (const T* ptr = nullptr): ptr (ptr) {}
|
|
void release () {ptr = nullptr; }
|
|
void set (const T * ptr_in) { ptr = ptr_in; }
|
|
void swap (ScopeDeleter<T> &other) {std::swap (ptr, other.ptr); }
|
|
~ScopeDeleter () {
|
|
delete [] ptr;
|
|
}
|
|
};
|
|
|
|
/** same but deletes with the simple delete (least common case) */
|
|
template<class T>
|
|
struct ScopeDeleter1 {
|
|
const T * ptr;
|
|
explicit ScopeDeleter1 (const T* ptr = nullptr): ptr (ptr) {}
|
|
void release () {ptr = nullptr; }
|
|
void set (const T * ptr_in) { ptr = ptr_in; }
|
|
void swap (ScopeDeleter1<T> &other) {std::swap (ptr, other.ptr); }
|
|
~ScopeDeleter1 () {
|
|
delete ptr;
|
|
}
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|