vitrio::executor_image_saver Class Reference

Performs writes described by a transaction plan on an executor. More...

#include <vitrio/executor_image_saver.hpp>

Inheritance diagram for vitrio::executor_image_saver:

Collaboration diagram for vitrio::executor_image_saver:

Public Member Functions
	executor_image_saver (std::shared_ptr< image_writer_provider > writers, std::shared_ptr< vitrio::executor > executor)
	Construct a saver over a provider and an executor.
std::shared_ptr< completion >	save (const_array source, const image_transaction_plan &plan, std::shared_ptr< const image_transfer_sanitizer > sanitizer) const override
	Save every region a transaction plan names.
Public Member Functions inherited from vitrio::image_saver
	image_saver (const image_saver &other)=delete
	image_saver (image_saver &&other)=delete
image_saver &	operator= (const image_saver &other)=delete
image_saver &	operator= (image_saver &&other)=delete

Detailed Description

Performs writes described by a transaction plan on an executor.

Splits the plan by the file each region addresses and writes each file's regions as one task, fanned out onto the executor this was constructed with. Files are therefore written concurrently to whatever degree the executor allows, not necessarily one after another.

Neither completion::wait nor completion::get of a completion this saver returns may be called from within a task already running on that executor.

Constructor & Destructor Documentation

executor_image_saver()

vitrio::executor_image_saver::executor_image_saver	(	std::shared_ptr< image_writer_provider >	writers,
		std::shared_ptr< vitrio::executor >	executor
	)

Construct a saver over a provider and an executor.

Parameters

writers	Where a key becomes an open writer.
executor	Where a file's write is run.

Exceptions

std::invalid_argument

If writers or executor is null.

Member Function Documentation

save()

std::shared_ptr< completion > vitrio::executor_image_saver::save ( const_array  source, const image_transaction_plan &  plan, std::shared_ptr< const image_transfer_sanitizer >  sanitizer  ) const

overridevirtual

Save every region a transaction plan names.

May return before the writes are done. The completion returned is ready once every region has been written or has failed, and rethrows what the first failure threw.

The regions of each file are shown to sanitizer beside the extents of that file and of source, and what it answers is written in their place. What it refuses is reported through the completion.

Parameters

source	The values to save.
plan	The transaction to save.
sanitizer	What becomes of the regions that do not fit.

Returns

std::shared_ptr<completion> The completion, never null.

Exceptions

std::invalid_argument

If sanitizer is null.

Implements vitrio::image_saver.

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

• vitrio/executor_image_saver.hpp