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faiss::ThreadedIndex< IndexT > Class Template Reference

`#include <ThreadedIndex.h>`

Inheritance diagram for faiss::ThreadedIndex< IndexT >:

## Public Member Functions

| ThreadedIndex (bool threaded)
| ThreadedIndex (int d, bool threaded)
void | addIndex (IndexT *index)
void | removeIndex (IndexT *index)
void | runOnIndex (std::function< void(int, IndexT *)> f)
void | runOnIndex (std::function< void(int, const IndexT *)> f) const
void | reset () override
int | count () const
| Returns the number of sub-indices.
IndexT * | at (int i)
| Returns the i-th sub-index.
const IndexT * | at (int i) const
| Returns the i-th sub-index (const version)

## Public Attributes

bool | own_fields
| Whether or not we are responsible for deleting our contained indices.

## Protected Member Functions

virtual void | onAfterAddIndex (IndexT *index)
| Called just after an index is added.
virtual void | onAfterRemoveIndex (IndexT *index)
| Called just after an index is removed.

## Static Protected Member Functions

static void | waitAndHandleFutures (std::vector< std::future< bool >> &v)

## Protected Attributes

std::vector< std::pair< IndexT *, std::unique_ptr < WorkerThread > > > | indices_
| Collection of Index instances, with their managing worker thread if any.
bool | isThreaded_
| Is this index multi-threaded?

## Detailed Description

### template<typename IndexT>
class faiss::ThreadedIndex< IndexT >

A holder of indices in a collection of threads The interface to this class itself is not thread safe

Definition at line 21 of file ThreadedIndex.h.

## Member Function Documentation

template<typename IndexT >

void faiss::ThreadedIndex< IndexT >::addIndex | ( | IndexT * | index | ) |

override an index that is managed by ourselves. WARNING: once an index is added, it becomes unsafe to touch it from any other thread than that on which is managing it, until we are shut down. Use runOnIndex to perform work on it instead.

Definition at line 49 of file ThreadedIndex-inl.h.

template<typename IndexT >

void faiss::ThreadedIndex< IndexT >::removeIndex | ( | IndexT * | index | ) |

Remove an index that is managed by ourselves. This will flush all pending work on that index, and then shut down its managing thread, and will remove the index.

Definition at line 88 of file ThreadedIndex-inl.h.

template<typename IndexT >

void faiss::ThreadedIndex< IndexT >::reset | ( |  | ) |

override

faiss::Index API All indices receive the same call

Definition at line 156 of file ThreadedIndex-inl.h.

template<typename IndexT >

void faiss::ThreadedIndex< IndexT >::runOnIndex | ( | std::function< void(int, IndexT *)> | f | ) |

Run a function on all indices, in the thread that the index is managed in. Function arguments are (index in collection, index pointer)

Definition at line 119 of file ThreadedIndex-inl.h.

The documentation for this class was generated from the following files:

- /data/users/hoss/faiss/ThreadedIndex.h
- /data/users/hoss/faiss/ThreadedIndex-inl.h