OpenVDB: PagedInputStream Class Reference

OpenVDB 13.0.0

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PagedInputStream Class Reference

A Paging wrapper to std::istream that is responsible for reading from a given input stream and creating Page objects and PageHandles that reference those pages for delayed reading. More...

`#include <openvdb/points/StreamCompression.h>`

## Public Types
using | Ptr = std::shared_ptr<PagedInputStream>

## Public Member Functions
| PagedInputStream ()=default
| PagedInputStream (std::istream &is)
void | setSizeOnly (bool sizeOnly)
| Size-only mode tags the stream as only reading size data.
bool | sizeOnly () const
std::istream & | getInputStream ()
void | setInputStream (std::istream &is)
PageHandle::Ptr | createHandle (std::streamsize n)
| Creates a PageHandle to access the next.
void | read (PageHandle::Ptr &pageHandle, std::streamsize n, bool delayed=true)
| Takes a pageHandle and updates the referenced page with the current stream pointer position and if delayed is false performs an immediate read of the data.

## Detailed Description

A Paging wrapper to std::istream that is responsible for reading from a given input stream and creating Page objects and PageHandles that reference those pages for delayed reading.

## Member Typedef Documentation

## ◆ Ptr

using Ptr = std::shared_ptr<PagedInputStream>

## Constructor & Destructor Documentation

## ◆ PagedInputStream() [1/2]

PagedInputStream | ( |  | ) |
| default

## ◆ PagedInputStream() [2/2]

PagedInputStream | ( | std::istream & | is | ) |
| explicit

## Member Function Documentation

## ◆ createHandle()

PageHandle::Ptr createHandle | ( | std::streamsize | n | ) |

Creates a PageHandle to access the next.

Parameters

  n | bytes of the Page.

## ◆ getInputStream()

std::istream & getInputStream | ( |  | ) |
| inline

## ◆ read()

void read | ( | PageHandle::Ptr & | pageHandle,
|  | std::streamsize | n,
|  | bool | delayed = true )

Takes a pageHandle and updates the referenced page with the current stream pointer position and if delayed is false performs an immediate read of the data.

## ◆ setInputStream()

void setInputStream | ( | std::istream & | is | ) |
| inline

## ◆ setSizeOnly()

void setSizeOnly | ( | bool | sizeOnly | ) |
| inline

Size-only mode tags the stream as only reading size data.

## ◆ sizeOnly()

bool sizeOnly | ( |  | ) | const
| inline